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Combine price feed transformers

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- fetches logs from all three price feeds in one query
- assumes eth/usd price feed will be updated to include LogValue event
- updates transformers to run separate from header sync
This commit is contained in:
Rob Mulholand 2018-08-14 16:59:41 -05:00
parent 9231d40369
commit 634604d0b5
68 changed files with 902 additions and 1384 deletions
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23
README.md
View File

@ -29,8 +29,7 @@ Vulcanize DB is a set of tools that make it easier for developers to write appli
## Configuration
- To use a local Ethereum node, copy `environments/public.toml.example` to
`environments/public.toml` and update the `ipcPath`, `levelDbPath`,
`pipContractAddress`, `pepContractAddress`, and `repContractAddress`.
`environments/public.toml` and update the `ipcPath` and `levelDbPath`.
- `ipcPath` should match the local node's IPC filepath:
- when using geth:
- The IPC file is called `geth.ipc`.
@ -52,10 +51,7 @@ Vulcanize DB is a set of tools that make it easier for developers to write appli
- Linux: `$HOME/.ethereum/geth/chaindata`
- `levelDbPath` is irrelevant (and `coldImport` is currently unavailable) if only running parity.
- `pepContractAddress`, `pipContractAddress`, and `repContractAddress` should match that medianizer
addresses for each pair on the chain you're tracking. See https://makerdao.com/feeds/
- See `environments/infura.toml` to configure commands to run against infura, if a local node is unavailable
- See `environments/infura.toml` to configure commands to run against infura, if a local node is unavailable.
- Copy `environments/local.toml.example` to `environments/local.toml` to configure commands to run against a local node such as [Ganache](https://truffleframework.com/ganache) or [ganache-cli](https://github.com/trufflesuite/ganache-clihttps://github.com/trufflesuite/ganache-cli).
## Start syncing with postgres
@ -82,21 +78,16 @@ This command is useful when you want a minimal baseline from which to track targ
1. In a separate terminal start VulcanizeDB:
- `./vulcanizedb lightSync --config <config.toml> --starting-block-number <block-number>`
## Backfill Auction event logs from light sync
Backfills auction event logs from the configured Ethereum node based on the populated block headers.
## Backfill Maker event logs from light sync
Backfills Maker event logs from the configured Ethereum node based on the populated block headers.
This includes logs related to auctions, multi-collateral dai, and price feeds.
This command requires that a light sync (see command above) has previously been run.
_Since auction contracts have not yet been deployed, this command will need to be run a local blockchain at the moment. As such, a new environment file will need to be added. See `environments/local.toml.example`._
_Since auction/mcd contracts have not yet been deployed, this command will need to be run a local blockchain at the moment. As such, a new environment file will need to be added. See `environments/local.toml.example`._
1. Start Ethereum node
1. In a separate terminal run the backfill command:
- `./vulcanizedb backfillAuctionLogs --config <config.toml>`
## Sync in light mode with MakerDAO price feeds
Sync VulcanizeDB with the configured Ethereum node, populating block headers as well as price feeds for MKR/USD, ETH/USD, and REP/USD.
1. Start Ethereum node
1. In a separate terminal window start VulcanizeDB
- `./vulcanizedb syncPriceFeeds --config <config.toml> --starting-block-number <block-number>`
- `./vulcanizedb backfillMakerLogs --config <config.toml>`
## Start full environment in docker by single command

3
cmd/backfillMakerLogs.go
View File

@ -35,7 +35,8 @@ var backfillMakerLogsCmd = &cobra.Command{
Use: "backfillMakerLogs",
Short: "Backfill Maker event logs",
Long: `Backfills Maker event logs based on previously populated block Header records.
This currently includes logs related to Multi-collateral Dai (frob) and Auctions (flip-kick).
This currently includes logs related to Multi-collateral Dai (frob), Auctions (flip-kick),
and Price Feeds (ETH/USD, MKR/USD, and REP/USD - LogValue).
vulcanize backfillMakerLogs --config environments/local.toml

6
cmd/lightSync.go
View File

@ -31,7 +31,6 @@ import (
vRpc "github.com/vulcanize/vulcanizedb/pkg/geth/converters/rpc"
"github.com/vulcanize/vulcanizedb/pkg/geth/node"
"github.com/vulcanize/vulcanizedb/pkg/history"
"github.com/vulcanize/vulcanizedb/pkg/transformers"
"github.com/vulcanize/vulcanizedb/utils"
)
@ -65,8 +64,7 @@ func init() {
}
func backFillAllHeaders(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, missingBlocksPopulated chan int, startingBlockNumber int64) {
emptyTransformers := []transformers.Transformer{}
populated, err := history.PopulateMissingHeaders(blockchain, headerRepository, startingBlockNumber, emptyTransformers)
populated, err := history.PopulateMissingHeaders(blockchain, headerRepository, startingBlockNumber)
if err != nil {
log.Fatal("Error populating headers: ", err)
}
@ -81,7 +79,7 @@ func lightSync() {
db := utils.LoadPostgres(databaseConfig, blockChain.Node())
headerRepository := repositories.NewHeaderRepository(&db)
validator := history.NewHeaderValidator(blockChain, headerRepository, validationWindow, []transformers.Transformer{})
validator := history.NewHeaderValidator(blockChain, headerRepository, validationWindow)
missingBlocksPopulated := make(chan int)
go backFillAllHeaders(blockChain, headerRepository, missingBlocksPopulated, startingBlockNumber)

12
cmd/root.go
View File

@ -29,9 +29,6 @@ var (
databaseConfig config.Database
ipc string
levelDbPath string
pepContractAddress string
pipContractAddress string
repContractAddress string
startingBlockNumber int64
syncAll bool
endingBlockNumber int64
@ -52,9 +49,6 @@ func Execute() {
func database(cmd *cobra.Command, args []string) {
ipc = viper.GetString("client.ipcpath")
levelDbPath = viper.GetString("client.leveldbpath")
pepContractAddress = viper.GetString("client.pepcontractaddress")
pipContractAddress = viper.GetString("client.pipcontractaddress")
repContractAddress = viper.GetString("client.repcontractaddress")
databaseConfig = config.Database{
Name: viper.GetString("database.name"),
Hostname: viper.GetString("database.hostname"),
@ -76,9 +70,6 @@ func init() {
rootCmd.PersistentFlags().String("database-password", "", "database password")
rootCmd.PersistentFlags().String("client-ipcPath", "", "location of geth.ipc file")
rootCmd.PersistentFlags().String("client-levelDbPath", "", "location of levelDb chaindata")
rootCmd.PersistentFlags().String("client-pepContractAddress", "", "mkr/usd price feed contract address")
rootCmd.PersistentFlags().String("client-pipContractAddress", "", "eth/usd price feed contract address")
rootCmd.PersistentFlags().String("client-repContractAddress", "", "rep/usd price feed contract address")
viper.BindPFlag("database.name", rootCmd.PersistentFlags().Lookup("database-name"))
viper.BindPFlag("database.port", rootCmd.PersistentFlags().Lookup("database-port"))
@ -87,9 +78,6 @@ func init() {
viper.BindPFlag("database.password", rootCmd.PersistentFlags().Lookup("database-password"))
viper.BindPFlag("client.ipcPath", rootCmd.PersistentFlags().Lookup("client-ipcPath"))
viper.BindPFlag("client.levelDbPath", rootCmd.PersistentFlags().Lookup("client-levelDbPath"))
viper.BindPFlag("client.pepContractAddress", rootCmd.PersistentFlags().Lookup("client-pepContractAddress"))
viper.BindPFlag("client.pipContractAddress", rootCmd.PersistentFlags().Lookup("client-pipContractAddress"))
viper.BindPFlag("client.repContractAddress", rootCmd.PersistentFlags().Lookup("client-repContractAddress"))
}
func initConfig() {

88
cmd/syncPriceFeeds.go
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@ -1,88 +0,0 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"log"
"os"
"time"
"github.com/spf13/cobra"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/history"
"github.com/vulcanize/vulcanizedb/pkg/transformers"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pep"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pip"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/rep"
"github.com/vulcanize/vulcanizedb/utils"
)
// syncPriceFeedsCmd represents the syncPriceFeeds command
var syncPriceFeedsCmd = &cobra.Command{
Use: "syncPriceFeeds",
Short: "Sync block headers with price feed data",
Long: `Sync Ethereum block headers and price feed data. For example:
./vulcanizedb syncPriceFeeds --config <config.toml> --starting-block-number <block-number>
Price feed data will be updated when price feed contracts log value events.`,
Run: func(cmd *cobra.Command, args []string) {
syncPriceFeeds()
},
}
func init() {
rootCmd.AddCommand(syncPriceFeedsCmd)
syncPriceFeedsCmd.Flags().Int64VarP(&startingBlockNumber, "starting-block-number", "s", 0, "block number at which to start tracking price feeds")
}
func backFillPriceFeeds(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, missingBlocksPopulated chan int, startingBlockNumber int64, transformers []transformers.Transformer) {
populated, err := history.PopulateMissingHeaders(blockchain, headerRepository, startingBlockNumber, transformers)
if err != nil {
log.Fatal("Error populating headers: ", err)
}
missingBlocksPopulated <- populated
}
func syncPriceFeeds() {
ticker := time.NewTicker(pollingInterval)
defer ticker.Stop()
blockChain := getBlockChain()
validateArgs(blockChain)
db := utils.LoadPostgres(databaseConfig, blockChain.Node())
transformers := []transformers.Transformer{
pep.NewPepTransformer(blockChain, &db, pepContractAddress),
pip.NewPipTransformer(blockChain, &db, pipContractAddress),
rep.NewRepTransformer(blockChain, &db, repContractAddress),
}
headerRepository := repositories.NewHeaderRepository(&db)
missingBlocksPopulated := make(chan int)
validator := history.NewHeaderValidator(blockChain, headerRepository, validationWindow, transformers)
go backFillPriceFeeds(blockChain, headerRepository, missingBlocksPopulated, startingBlockNumber, transformers)
for {
select {
case <-ticker.C:
window := validator.ValidateHeaders()
window.Log(os.Stdout)
case <-missingBlocksPopulated:
go backFillPriceFeeds(blockChain, headerRepository, missingBlocksPopulated, startingBlockNumber, transformers)
}
}
}

2
db/migrations/1532533671_create_peps_table.down.sql
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@ -1,2 +0,0 @@
DROP TABLE maker.peps;
DROP SCHEMA maker;

9
db/migrations/1532533671_create_peps_table.up.sql
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@ -1,9 +0,0 @@
CREATE TABLE maker.peps (
id SERIAL PRIMARY KEY,
block_number BIGINT NOT NULL,
header_id INTEGER NOT NULL,
usd_value NUMERIC,
CONSTRAINT headers_fk FOREIGN KEY (header_id)
REFERENCES headers (id)
ON DELETE CASCADE
);

1
db/migrations/1532623709_create_pips_table.down.sql
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@ -1 +0,0 @@
DROP TABLE maker.pips;

9
db/migrations/1532623709_create_pips_table.up.sql
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@ -1,9 +0,0 @@
CREATE TABLE maker.pips (
id SERIAL PRIMARY KEY,
block_number BIGINT NOT NULL,
header_id INTEGER NOT NULL,
usd_value NUMERIC,
CONSTRAINT headers_fk FOREIGN KEY (header_id)
REFERENCES headers (id)
ON DELETE CASCADE
);

1
db/migrations/1532635100_create_reps_table.down.sql
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@ -1 +0,0 @@
DROP TABLE maker.reps;

9
db/migrations/1532635100_create_reps_table.up.sql
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@ -1,9 +0,0 @@
CREATE TABLE maker.reps (
id SERIAL PRIMARY KEY,
block_number BIGINT NOT NULL,
header_id INTEGER NOT NULL,
usd_value NUMERIC,
CONSTRAINT headers_fk FOREIGN KEY (header_id)
REFERENCES headers (id)
ON DELETE CASCADE
);

1
db/migrations/1534275305_create_price_feeds_table.down.sql Normal file
View File

@ -0,0 +1 @@
DROP TABLE maker.price_feeds;

12
db/migrations/1534275305_create_price_feeds_table.up.sql Normal file
View File

@ -0,0 +1,12 @@
CREATE TABLE maker.price_feeds (
id SERIAL PRIMARY KEY,
block_number BIGINT NOT NULL,
header_id INTEGER NOT NULL,
medianizer_address bytea,
tx_idx INTEGER NOT NULL,
usd_value NUMERIC,
UNIQUE (header_id, medianizer_address, tx_idx),
CONSTRAINT headers_fk FOREIGN KEY (header_id)
REFERENCES headers (id)
ON DELETE CASCADE
);

136
db/schema.sql
View File

@ -120,22 +120,24 @@ ALTER SEQUENCE maker.frob_id_seq OWNED BY maker.frob.id;
--
-- Name: peps; Type: TABLE; Schema: maker; Owner: -
-- Name: price_feeds; Type: TABLE; Schema: maker; Owner: -
--
CREATE TABLE maker.peps (
CREATE TABLE maker.price_feeds (
id integer NOT NULL,
block_number bigint NOT NULL,
header_id integer NOT NULL,
medianizer_address bytea,
tx_idx integer NOT NULL,
usd_value numeric
);
--
-- Name: peps_id_seq; Type: SEQUENCE; Schema: maker; Owner: -
-- Name: price_feeds_id_seq; Type: SEQUENCE; Schema: maker; Owner: -
--
CREATE SEQUENCE maker.peps_id_seq
CREATE SEQUENCE maker.price_feeds_id_seq
AS integer
START WITH 1
INCREMENT BY 1
@ -145,74 +147,10 @@ CREATE SEQUENCE maker.peps_id_seq
--
-- Name: peps_id_seq; Type: SEQUENCE OWNED BY; Schema: maker; Owner: -
-- Name: price_feeds_id_seq; Type: SEQUENCE OWNED BY; Schema: maker; Owner: -
--
ALTER SEQUENCE maker.peps_id_seq OWNED BY maker.peps.id;
--
-- Name: pips; Type: TABLE; Schema: maker; Owner: -
--
CREATE TABLE maker.pips (
id integer NOT NULL,
block_number bigint NOT NULL,
header_id integer NOT NULL,
usd_value numeric
);
--
-- Name: pips_id_seq; Type: SEQUENCE; Schema: maker; Owner: -
--
CREATE SEQUENCE maker.pips_id_seq
AS integer
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
--
-- Name: pips_id_seq; Type: SEQUENCE OWNED BY; Schema: maker; Owner: -
--
ALTER SEQUENCE maker.pips_id_seq OWNED BY maker.pips.id;
--
-- Name: reps; Type: TABLE; Schema: maker; Owner: -
--
CREATE TABLE maker.reps (
id integer NOT NULL,
block_number bigint NOT NULL,
header_id integer NOT NULL,
usd_value numeric
);
--
-- Name: reps_id_seq; Type: SEQUENCE; Schema: maker; Owner: -
--
CREATE SEQUENCE maker.reps_id_seq
AS integer
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
--
-- Name: reps_id_seq; Type: SEQUENCE OWNED BY; Schema: maker; Owner: -
--
ALTER SEQUENCE maker.reps_id_seq OWNED BY maker.reps.id;
ALTER SEQUENCE maker.price_feeds_id_seq OWNED BY maker.price_feeds.id;
--
@ -602,24 +540,10 @@ ALTER TABLE ONLY maker.frob ALTER COLUMN id SET DEFAULT nextval('maker.frob_id_s
--
-- Name: peps id; Type: DEFAULT; Schema: maker; Owner: -
-- Name: price_feeds id; Type: DEFAULT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.peps ALTER COLUMN id SET DEFAULT nextval('maker.peps_id_seq'::regclass);
--
-- Name: pips id; Type: DEFAULT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.pips ALTER COLUMN id SET DEFAULT nextval('maker.pips_id_seq'::regclass);
--
-- Name: reps id; Type: DEFAULT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.reps ALTER COLUMN id SET DEFAULT nextval('maker.reps_id_seq'::regclass);
ALTER TABLE ONLY maker.price_feeds ALTER COLUMN id SET DEFAULT nextval('maker.price_feeds_id_seq'::regclass);
--
@ -718,27 +642,19 @@ ALTER TABLE ONLY maker.frob
--
-- Name: peps peps_pkey; Type: CONSTRAINT; Schema: maker; Owner: -
-- Name: price_feeds price_feeds_header_id_medianizer_address_tx_idx_key; Type: CONSTRAINT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.peps
ADD CONSTRAINT peps_pkey PRIMARY KEY (id);
ALTER TABLE ONLY maker.price_feeds
ADD CONSTRAINT price_feeds_header_id_medianizer_address_tx_idx_key UNIQUE (header_id, medianizer_address, tx_idx);
--
-- Name: pips pips_pkey; Type: CONSTRAINT; Schema: maker; Owner: -
-- Name: price_feeds price_feeds_pkey; Type: CONSTRAINT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.pips
ADD CONSTRAINT pips_pkey PRIMARY KEY (id);
--
-- Name: reps reps_pkey; Type: CONSTRAINT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.reps
ADD CONSTRAINT reps_pkey PRIMARY KEY (id);
ALTER TABLE ONLY maker.price_feeds
ADD CONSTRAINT price_feeds_pkey PRIMARY KEY (id);
--
@ -889,26 +805,10 @@ ALTER TABLE ONLY maker.frob
--
-- Name: peps headers_fk; Type: FK CONSTRAINT; Schema: maker; Owner: -
-- Name: price_feeds headers_fk; Type: FK CONSTRAINT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.peps
ADD CONSTRAINT headers_fk FOREIGN KEY (header_id) REFERENCES public.headers(id) ON DELETE CASCADE;
--
-- Name: pips headers_fk; Type: FK CONSTRAINT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.pips
ADD CONSTRAINT headers_fk FOREIGN KEY (header_id) REFERENCES public.headers(id) ON DELETE CASCADE;
--
-- Name: reps headers_fk; Type: FK CONSTRAINT; Schema: maker; Owner: -
--
ALTER TABLE ONLY maker.reps
ALTER TABLE ONLY maker.price_feeds
ADD CONSTRAINT headers_fk FOREIGN KEY (header_id) REFERENCES public.headers(id) ON DELETE CASCADE;

5
environments/infura.toml
View File

@ -1,10 +1,7 @@
[database]
name = "vulcanize_public"
name = "vulcanize_private"
hostname = "localhost"
port = 5432
[client]
ipcPath = "https://mainnet.infura.io/J5Vd2fRtGsw0zZ0Ov3BL"
pepContractAddress = "0x99041F808D598B782D5a3e498681C2452A31da08"
pipContractAddress = "0x729D19f657BD0614b4985Cf1D82531c67569197B"
repContractAddress = "0xF5f94b7F9De14D43112e713835BCef2d55b76c1C"

3
environments/private.toml
View File

@ -5,6 +5,3 @@ port = 5432
[client]
ipcPath = "http://127.0.0.1:7545"
pepContractAddress = "0x99041F808D598B782D5a3e498681C2452A31da08"
pipContractAddress = "0x729D19f657BD0614b4985Cf1D82531c67569197B"
repContractAddress = "0xF5f94b7F9De14D43112e713835BCef2d55b76c1C"

3
environments/public.toml.example
View File

@ -6,6 +6,3 @@ port = 5432
[client]
ipcPath = <local node's IPC filepath>
levelDbPath = <local node's LevelDB chaindata filepath>
pepContractAddress = <pep medianizer's address - see https://makerdao.com/feeds/ >
pipContractAddress = <pip medianizer's address - see https://makerdao.com/feeds/ >
repContractAddress = <rep medianizer's address - see https://makerdao.com/feeds/ >

1
pkg/datastore/postgres/repositories/header_repository.go
View File

@ -3,6 +3,7 @@ package repositories
import (
"database/sql"
"errors"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
)

44
pkg/fakes/mock_transformer.go
View File

@ -1,44 +0,0 @@
package fakes
import (
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
)
type MockTransformer struct {
passedHeader core.Header
passedHeaderID int64
executeCalled bool
executeErr error
}
func NewMockTransformer() *MockTransformer {
return &MockTransformer{
passedHeader: core.Header{},
passedHeaderID: 0,
executeCalled: false,
executeErr: nil,
}
}
func (transformer *MockTransformer) SetExecuteErr(err error) {
transformer.executeErr = err
}
func (transformer *MockTransformer) Execute(header core.Header, headerID int64) error {
transformer.executeCalled = true
transformer.passedHeader = header
transformer.passedHeaderID = headerID
return transformer.executeErr
}
func (transformer *MockTransformer) AssertExecuteCalledWith(header core.Header, headerID int64) {
Expect(transformer.executeCalled).To(BeTrue())
Expect(header).To(Equal(transformer.passedHeader))
Expect(headerID).To(Equal(transformer.passedHeaderID))
}
func (tranformer *MockTransformer) AssertExecuteNotCalled() {
Expect(tranformer.executeCalled).To(BeFalse())
}

7
pkg/history/header_validator.go
View File

@ -3,28 +3,25 @@ package history
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore"
"github.com/vulcanize/vulcanizedb/pkg/transformers"
)
type HeaderValidator struct {
blockChain core.BlockChain
headerRepository datastore.HeaderRepository
windowSize int
transformers []transformers.Transformer
}
func NewHeaderValidator(blockChain core.BlockChain, repository datastore.HeaderRepository, windowSize int, transformers []transformers.Transformer) HeaderValidator {
func NewHeaderValidator(blockChain core.BlockChain, repository datastore.HeaderRepository, windowSize int) HeaderValidator {
return HeaderValidator{
blockChain: blockChain,
headerRepository: repository,
windowSize: windowSize,
transformers: transformers,
}
}
func (validator HeaderValidator) ValidateHeaders() ValidationWindow {
window := MakeValidationWindow(validator.blockChain, validator.windowSize)
blockNumbers := MakeRange(window.LowerBound, window.UpperBound)
RetrieveAndUpdateHeaders(validator.blockChain, validator.headerRepository, blockNumbers, validator.transformers)
RetrieveAndUpdateHeaders(validator.blockChain, validator.headerRepository, blockNumbers)
return window
}

18
pkg/history/header_validator_test.go
View File

@ -2,10 +2,8 @@ package history_test
import (
. "github.com/onsi/ginkgo"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/history"
"github.com/vulcanize/vulcanizedb/pkg/transformers"
"math/big"
)
@ -15,24 +13,10 @@ var _ = Describe("Header validator", func() {
headerRepository.SetMissingBlockNumbers([]int64{})
blockChain := fakes.NewMockBlockChain()
blockChain.SetLastBlock(big.NewInt(3))
validator := history.NewHeaderValidator(blockChain, headerRepository, 2, []transformers.Transformer{})
validator := history.NewHeaderValidator(blockChain, headerRepository, 2)
validator.ValidateHeaders()
headerRepository.AssertCreateOrUpdateHeaderCallCountAndPassedBlockNumbers(3, []int64{1, 2, 3})
})
It("passes transformers for execution on new blocks", func() {
headerRepository := fakes.NewMockHeaderRepository()
headerRepository.SetMissingBlockNumbers([]int64{})
blockChain := fakes.NewMockBlockChain()
blockChain.SetLastBlock(big.NewInt(3))
transformer := fakes.NewMockTransformer()
validator := history.NewHeaderValidator(blockChain, headerRepository, 1, []transformers.Transformer{transformer})
validator.ValidateHeaders()
headerRepository.AssertCreateOrUpdateHeaderCallCountAndPassedBlockNumbers(2, []int64{2, 3})
transformer.AssertExecuteCalledWith(core.Header{BlockNumber: 3}, 0)
})
})

15
pkg/history/populate_headers.go
View File

@ -6,40 +6,33 @@ import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/transformers"
)
func PopulateMissingHeaders(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, startingBlockNumber int64, transformers []transformers.Transformer) (int, error) {
func PopulateMissingHeaders(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, startingBlockNumber int64) (int, error) {
lastBlock := blockchain.LastBlock().Int64()
blockRange := headerRepository.MissingBlockNumbers(startingBlockNumber, lastBlock, blockchain.Node().ID)
log.SetPrefix("")
log.Printf("Backfilling %d blocks\n\n", len(blockRange))
_, err := RetrieveAndUpdateHeaders(blockchain, headerRepository, blockRange, transformers)
_, err := RetrieveAndUpdateHeaders(blockchain, headerRepository, blockRange)
if err != nil {
return 0, err
}
return len(blockRange), nil
}
func RetrieveAndUpdateHeaders(chain core.BlockChain, headerRepository datastore.HeaderRepository, blockNumbers []int64, transformers []transformers.Transformer) (int, error) {
func RetrieveAndUpdateHeaders(chain core.BlockChain, headerRepository datastore.HeaderRepository, blockNumbers []int64) (int, error) {
for _, blockNumber := range blockNumbers {
header, err := chain.GetHeaderByNumber(blockNumber)
if err != nil {
return 0, err
}
id, err := headerRepository.CreateOrUpdateHeader(header)
_, err = headerRepository.CreateOrUpdateHeader(header)
if err != nil {
if err == repositories.ErrValidHeaderExists {
continue
}
return 0, err
}
for _, transformer := range transformers {
err := transformer.Execute(header, id)
if err != nil {
return 0, err
}
}
}
return len(blockNumbers), nil
}

52
pkg/history/populate_headers_test.go
View File

@ -6,11 +6,8 @@ import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/history"
"github.com/vulcanize/vulcanizedb/pkg/transformers"
)
var _ = Describe("Populating headers", func() {
@ -26,7 +23,7 @@ var _ = Describe("Populating headers", func() {
blockChain.SetLastBlock(big.NewInt(2))
headerRepository.SetMissingBlockNumbers([]int64{2})
headersAdded, err := history.PopulateMissingHeaders(blockChain, headerRepository, 1, []transformers.Transformer{})
headersAdded, err := history.PopulateMissingHeaders(blockChain, headerRepository, 1)
Expect(err).NotTo(HaveOccurred())
Expect(headersAdded).To(Equal(1))
@ -37,54 +34,9 @@ var _ = Describe("Populating headers", func() {
blockChain.SetLastBlock(big.NewInt(2))
headerRepository.SetMissingBlockNumbers([]int64{2})
_, err := history.PopulateMissingHeaders(blockChain, headerRepository, 1, []transformers.Transformer{})
_, err := history.PopulateMissingHeaders(blockChain, headerRepository, 1)
Expect(err).NotTo(HaveOccurred())
headerRepository.AssertCreateOrUpdateHeaderCallCountAndPassedBlockNumbers(1, []int64{2})
})
It("executes passed transformers with created headers", func() {
blockNumber := int64(54321)
blockChain := fakes.NewMockBlockChain()
blockChain.SetLastBlock(big.NewInt(blockNumber))
headerRepository.SetMissingBlockNumbers([]int64{blockNumber})
headerID := int64(12345)
headerRepository.SetCreateOrUpdateHeaderReturnID(headerID)
transformer := fakes.NewMockTransformer()
_, err := history.PopulateMissingHeaders(blockChain, headerRepository, blockNumber, []transformers.Transformer{transformer})
Expect(err).NotTo(HaveOccurred())
transformer.AssertExecuteCalledWith(core.Header{BlockNumber: blockNumber}, headerID)
})
It("does not execute transformer if repository indicates header already exists", func() {
blockNumber := int64(54321)
blockChain := fakes.NewMockBlockChain()
blockChain.SetLastBlock(big.NewInt(blockNumber))
headerRepository.SetMissingBlockNumbers([]int64{blockNumber})
headerRepository.SetCreateOrUpdateHeaderReturnErr(repositories.ErrValidHeaderExists)
transformer := fakes.NewMockTransformer()
_, err := history.PopulateMissingHeaders(blockChain, headerRepository, blockNumber, []transformers.Transformer{transformer})
Expect(err).NotTo(HaveOccurred())
transformer.AssertExecuteNotCalled()
})
It("returns error if executing transformer fails", func() {
blockNumber := int64(54321)
blockChain := fakes.NewMockBlockChain()
blockChain.SetLastBlock(big.NewInt(blockNumber))
headerRepository.SetMissingBlockNumbers([]int64{blockNumber})
headerID := int64(12345)
headerRepository.SetCreateOrUpdateHeaderReturnID(headerID)
transformer := fakes.NewMockTransformer()
transformer.SetExecuteErr(fakes.FakeError)
_, err := history.PopulateMissingHeaders(blockChain, headerRepository, blockNumber, []transformers.Transformer{transformer})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
})

12
pkg/transformers/flip_kick/config.go
View File

@ -14,16 +14,10 @@
package flip_kick
type TransformerConfig struct {
ContractAddress string
ContractAbi string
Topics []string
StartingBlockNumber int64
EndingBlockNumber int64
}
import "github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
var FlipKickConfig = TransformerConfig{
ContractAddress: "0x08cb6176addcca2e1d1ffe21bee464b72ee4cd8d", //this is a temporary address deployed locally
var FlipKickConfig = shared.TransformerConfig{
ContractAddresses: "0x08cb6176addcca2e1d1ffe21bee464b72ee4cd8d", //this is a temporary address deployed locally
ContractAbi: FlipperABI,
Topics: []string{FlipKickSignature},
StartingBlockNumber: 0,

10
pkg/transformers/flip_kick/transformer.go
View File

@ -30,11 +30,11 @@ type FlipKickTransformer struct {
Fetcher shared.LogFetcher
Converter Converter
Repository Repository
Config TransformerConfig
Config shared.TransformerConfig
}
type FlipKickTransformerInitializer struct {
Config TransformerConfig
Config shared.TransformerConfig
}
func (i FlipKickTransformerInitializer) NewFlipKickTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
@ -50,7 +50,7 @@ func (i FlipKickTransformerInitializer) NewFlipKickTransformer(db *postgres.DB,
return transformer
}
func (fkt *FlipKickTransformer) SetConfig(config TransformerConfig) {
func (fkt *FlipKickTransformer) SetConfig(config shared.TransformerConfig) {
fkt.Config = config
}
@ -91,13 +91,13 @@ func (fkt FlipKickTransformer) Execute() error {
log.Printf("Fetching event logs for %d headers \n", len(headers))
var resultingErrors []error
for _, header := range headers {
ethLogs, err := fkt.Fetcher.FetchLogs(config.ContractAddress, topics, header.BlockNumber)
ethLogs, err := fkt.Fetcher.FetchLogs(config.ContractAddresses, topics, header.BlockNumber)
if err != nil {
resultingErrors = append(resultingErrors, newTransformerError(err, header.BlockNumber, FetcherError))
}
for _, ethLog := range ethLogs {
entity, err := fkt.Converter.ToEntity(config.ContractAddress, config.ContractAbi, ethLog)
entity, err := fkt.Converter.ToEntity(config.ContractAddresses, config.ContractAbi, ethLog)
if err != nil {
resultingErrors = append(resultingErrors, newTransformerError(err, header.BlockNumber, LogToEntityError))
}

11
pkg/transformers/flip_kick/transformer_test.go
View File

@ -25,6 +25,7 @@ import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/flip_kick"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data/mocks"
flip_kick_mocks "github.com/vulcanize/vulcanizedb/pkg/transformers/test_data/mocks/flip_kick"
@ -35,7 +36,7 @@ var _ = Describe("FlipKick Transformer", func() {
var fetcher mocks.MockLogFetcher
var converter flip_kick_mocks.MockFlipKickConverter
var repository flip_kick_mocks.MockFlipKickRepository
var testConfig flip_kick.TransformerConfig
var testConfig shared.TransformerConfig
var blockNumber int64
var headerId int64
var headers []core.Header
@ -52,8 +53,8 @@ var _ = Describe("FlipKick Transformer", func() {
}
startingBlockNumber := rand.Int63()
testConfig = flip_kick.TransformerConfig{
ContractAddress: "0x12345",
testConfig = shared.TransformerConfig{
ContractAddresses: "0x12345",
ContractAbi: "test abi",
Topics: []string{flip_kick.FlipKickSignature},
StartingBlockNumber: startingBlockNumber,
@ -82,7 +83,7 @@ var _ = Describe("FlipKick Transformer", func() {
err := transformer.Execute()
Expect(err).NotTo(HaveOccurred())
Expect(fetcher.FetchedContractAddress).To(Equal(testConfig.ContractAddress))
Expect(fetcher.FetchedContractAddress).To(Equal(testConfig.ContractAddresses))
Expect(fetcher.FetchedTopics).To(Equal(expectedTopics))
Expect(fetcher.FetchedBlocks).To(Equal([]int64{blockNumber}))
})
@ -99,7 +100,7 @@ var _ = Describe("FlipKick Transformer", func() {
err := transformer.Execute()
Expect(err).NotTo(HaveOccurred())
Expect(converter.ConverterContract).To(Equal(testConfig.ContractAddress))
Expect(converter.ConverterContract).To(Equal(testConfig.ContractAddresses))
Expect(converter.ConverterAbi).To(Equal(testConfig.ContractAbi))
Expect(converter.LogsToConvert).To(Equal(logs))
Expect(converter.EntitiesToConvert).To(Equal([]flip_kick.FlipKickEntity{test_data.FlipKickEntity}))

12
pkg/transformers/frob/config.go
View File

@ -14,16 +14,10 @@
package frob
type TransformerConfig struct {
ContractAddress string
ContractAbi string
Topics []string
StartingBlockNumber int64
EndingBlockNumber int64
}
import "github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
var FrobConfig = TransformerConfig{
ContractAddress: "0xff3f2400f1600f3f493a9a92704a29b96795af1a", //this is a temporary address deployed locally
var FrobConfig = shared.TransformerConfig{
ContractAddresses: "0xff3f2400f1600f3f493a9a92704a29b96795af1a", //this is a temporary address deployed locally
ContractAbi: FrobABI,
Topics: []string{FrobEventSignature},
StartingBlockNumber: 0,

10
pkg/transformers/frob/transformer.go
View File

@ -23,13 +23,14 @@ import (
)
type FrobTransformer struct {
Config shared.TransformerConfig
Converter Converter
Fetcher shared.LogFetcher
Repository Repository
}
type FrobTransformerInitializer struct {
Config TransformerConfig
Config shared.TransformerConfig
}
func (initializer FrobTransformerInitializer) NewFrobTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
@ -37,6 +38,7 @@ func (initializer FrobTransformerInitializer) NewFrobTransformer(db *postgres.DB
fetcher := shared.NewFetcher(blockChain)
repository := NewFrobRepository(db)
return FrobTransformer{
Config: initializer.Config,
Converter: converter,
Fetcher: fetcher,
Repository: repository,
@ -44,18 +46,18 @@ func (initializer FrobTransformerInitializer) NewFrobTransformer(db *postgres.DB
}
func (transformer FrobTransformer) Execute() error {
missingHeaders, err := transformer.Repository.MissingHeaders(FrobConfig.StartingBlockNumber, FrobConfig.EndingBlockNumber)
missingHeaders, err := transformer.Repository.MissingHeaders(transformer.Config.StartingBlockNumber, transformer.Config.EndingBlockNumber)
if err != nil {
return err
}
for _, header := range missingHeaders {
topics := [][]common.Hash{{common.HexToHash(FrobEventSignature)}}
matchingLogs, err := transformer.Fetcher.FetchLogs(FrobConfig.ContractAddress, topics, header.BlockNumber)
matchingLogs, err := transformer.Fetcher.FetchLogs(FrobConfig.ContractAddresses, topics, header.BlockNumber)
if err != nil {
return err
}
for _, log := range matchingLogs {
entity, err := transformer.Converter.ToEntity(FrobConfig.ContractAddress, FrobConfig.ContractAbi, log)
entity, err := transformer.Converter.ToEntity(FrobConfig.ContractAddresses, FrobConfig.ContractAbi, log)
if err != nil {
return err
}

5
pkg/transformers/frob/transformer_test.go
View File

@ -32,6 +32,7 @@ var _ = Describe("Frob transformer", func() {
It("gets missing headers for block numbers specified in config", func() {
repository := &frob_mocks.MockFrobRepository{}
transformer := frob.FrobTransformer{
Config: frob.FrobConfig,
Fetcher: &mocks.MockLogFetcher{},
Converter: &frob_mocks.MockFrobConverter{},
Repository: repository,
@ -73,7 +74,7 @@ var _ = Describe("Frob transformer", func() {
Expect(err).NotTo(HaveOccurred())
Expect(fetcher.FetchedBlocks).To(Equal([]int64{1, 2}))
Expect(fetcher.FetchedContractAddress).To(Equal(frob.FrobConfig.ContractAddress))
Expect(fetcher.FetchedContractAddress).To(Equal(frob.FrobConfig.ContractAddresses))
Expect(fetcher.FetchedTopics).To(Equal([][]common.Hash{{common.HexToHash(frob.FrobEventSignature)}}))
})
@ -109,7 +110,7 @@ var _ = Describe("Frob transformer", func() {
err := transformer.Execute()
Expect(err).NotTo(HaveOccurred())
Expect(converter.PassedContractAddress).To(Equal(frob.FrobConfig.ContractAddress))
Expect(converter.PassedContractAddress).To(Equal(frob.FrobConfig.ContractAddresses))
Expect(converter.PassedContractABI).To(Equal(frob.FrobConfig.ContractAbi))
Expect(converter.PassedLog).To(Equal(test_data.EthFrobLog))
Expect(converter.PassedEntity).To(Equal(test_data.FrobEntity))

37
pkg/transformers/price_feeds/config.go Normal file
View File

@ -0,0 +1,37 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
var (
PepAddress = "0x99041F808D598B782D5a3e498681C2452A31da08"
PipAddress = "0x729D19f657BD0614b4985Cf1D82531c67569197B"
RepAddress = "0xF5f94b7F9De14D43112e713835BCef2d55b76c1C"
)
type IPriceFeedConfig struct {
ContractAddresses []string
StartingBlockNumber int64
EndingBlockNumber int64
}
var PriceFeedConfig = IPriceFeedConfig{
ContractAddresses: []string{
PepAddress,
PipAddress,
RepAddress,
},
StartingBlockNumber: 0,
EndingBlockNumber: 100,
}

22
pkg/transformers/price_feeds/constants.go
View File

@ -1,3 +1,17 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import (
@ -6,13 +20,9 @@ import (
)
var (
ErrMultipleLogs = errors.New("multiple matching logs found in block")
ErrNoMatchingLog = errors.New("no matching log")
Ether = big.NewFloat(1e18)
PeekMethodName = "peek"
PepLogTopic0 = "0x296ba4ca62c6c21c95e828080cb8aec7481b71390585605300a8a76f9e95b527"
PipLogTopic0 = "0x1817835800000000000000000000000000000000000000000000000000000000"
PipMedianizerABI = `[{"constant":false,"inputs":[{"name":"owner_","type":"address"}],"name":"setOwner","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"","type":"bytes32"}],"name":"poke","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"poke","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"compute","outputs":[{"name":"","type":"bytes32"},{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"wat","type":"address"}],"name":"set","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"wat","type":"address"}],"name":"unset","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"indexes","outputs":[{"name":"","type":"bytes12"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"next","outputs":[{"name":"","type":"bytes12"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"read","outputs":[{"name":"","type":"bytes32"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"peek","outputs":[{"name":"","type":"bytes32"},{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes12"}],"name":"values","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"min_","type":"uint96"}],"name":"setMin","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"authority_","type":"address"}],"name":"setAuthority","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"void","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"pos","type":"bytes12"},{"name":"wat","type":"address"}],"name":"set","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"authority","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"pos","type":"bytes12"}],"name":"unset","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"next_","type":"bytes12"}],"name":"setNext","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"min","outputs":[{"name":"","type":"uint96"}],"payable":false,"type":"function"},{"anonymous":true,"inputs":[{"indexed":true,"name":"sig","type":"bytes4"},{"indexed":true,"name":"guy","type":"address"},{"indexed":true,"name":"foo","type":"bytes32"},{"indexed":true,"name":"bar","type":"bytes32"},{"indexed":false,"name":"wad","type":"uint256"},{"indexed":false,"name":"fax","type":"bytes"}],"name":"LogNote","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"authority","type":"address"}],"name":"LogSetAuthority","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"}],"name":"LogSetOwner","type":"event"}]`
LogValueTopic0 = "0x296ba4ca62c6c21c95e828080cb8aec7481b71390585605300a8a76f9e95b527"
MedianizerABI = `[{"constant":false,"inputs":[{"name":"owner_","type":"address"}],"name":"setOwner","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"","type":"bytes32"}],"name":"poke","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"poke","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"compute","outputs":[{"name":"","type":"bytes32"},{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"wat","type":"address"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"wat","type":"address"}],"name":"unset","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"indexes","outputs":[{"name":"","type":"bytes12"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"next","outputs":[{"name":"","type":"bytes12"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"read","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"peek","outputs":[{"name":"","type":"bytes32"},{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes12"}],"name":"values","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"min_","type":"uint96"}],"name":"setMin","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"authority_","type":"address"}],"name":"setAuthority","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"void","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"pos","type":"bytes12"},{"name":"wat","type":"address"}],"name":"set","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"authority","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"pos","type":"bytes12"}],"name":"unset","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"next_","type":"bytes12"}],"name":"setNext","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"min","outputs":[{"name":"","type":"uint96"}],"payable":false,"stateMutability":"view","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"val","type":"bytes32"}],"name":"LogValue","type":"event"},{"anonymous":true,"inputs":[{"indexed":true,"name":"sig","type":"bytes4"},{"indexed":true,"name":"guy","type":"address"},{"indexed":true,"name":"foo","type":"bytes32"},{"indexed":true,"name":"bar","type":"bytes32"},{"indexed":false,"name":"wad","type":"uint256"},{"indexed":false,"name":"fax","type":"bytes"}],"name":"LogNote","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"authority","type":"address"}],"name":"LogSetAuthority","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"}],"name":"LogSetOwner","type":"event"}]]`
Ray = big.NewFloat(1e27)
RepLogTopic0 = "0x296ba4ca62c6c21c95e828080cb8aec7481b71390585605300a8a76f9e95b527"
)

32
pkg/transformers/price_feeds/converter.go Normal file
View File

@ -0,0 +1,32 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import (
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
)
type PriceFeedConverter struct{}
func (converter PriceFeedConverter) ToModel(log types.Log, headerID int64) PriceFeedModel {
return PriceFeedModel{
BlockNumber: log.BlockNumber,
HeaderID: headerID,
MedianizerAddress: log.Address.Bytes(),
UsdValue: Convert("wad", hexutil.Encode(log.Data), 15),
TransactionIndex: log.TxIndex,
}
}

57
pkg/transformers/price_feeds/converter_test.go Normal file
View File

@ -0,0 +1,57 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds_test
import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
var _ = Describe("Price feed converter", func() {
It("converts a log to a price feed model", func() {
medianizerAddress := common.HexToAddress("0x99041f808d598b782d5a3e498681c2452a31da08")
blockNumber := uint64(6147230)
txIndex := uint(119)
// https://etherscan.io/tx/0xa51a50a2adbfba4e2ab3d72dfd67a21c769f1bc8d2b180663a15500a56cde58f
log := types.Log{
Address: medianizerAddress,
Topics: []common.Hash{common.HexToHash(price_feeds.LogValueTopic0)},
Data: common.FromHex("00000000000000000000000000000000000000000000001486f658319fb0c100"),
BlockNumber: blockNumber,
TxHash: common.HexToHash("0xa51a50a2adbfba4e2ab3d72dfd67a21c769f1bc8d2b180663a15500a56cde58f"),
TxIndex: txIndex,
BlockHash: common.HexToHash("0x27ecebbf69eefa3bb3cf65f472322a80ff4946653a50a2171dc605f49829467d"),
Index: 0,
Removed: false,
}
converter := price_feeds.PriceFeedConverter{}
headerID := int64(123)
model := converter.ToModel(log, headerID)
expectedModel := price_feeds.PriceFeedModel{
BlockNumber: blockNumber,
HeaderID: headerID,
MedianizerAddress: medianizerAddress[:],
UsdValue: "378.6599388897",
TransactionIndex: txIndex,
}
Expect(model).To(Equal(expectedModel))
})
})

54
pkg/transformers/price_feeds/fetcher.go Normal file
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@ -0,0 +1,54 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import (
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"math/big"
)
type IPriceFeedFetcher interface {
FetchLogValues(blockNumber int64) ([]types.Log, error)
}
type PriceFeedFetcher struct {
blockChain core.BlockChain
contractAddresses []string
}
func NewPriceFeedFetcher(blockChain core.BlockChain, contractAddresses []string) PriceFeedFetcher {
return PriceFeedFetcher{
blockChain: blockChain,
contractAddresses: contractAddresses,
}
}
func (fetcher PriceFeedFetcher) FetchLogValues(blockNumber int64) ([]types.Log, error) {
var addresses []common.Address
for _, addr := range fetcher.contractAddresses {
addresses = append(addresses, common.HexToAddress(addr))
}
n := big.NewInt(blockNumber)
query := ethereum.FilterQuery{
FromBlock: n,
ToBlock: n,
Addresses: addresses,
Topics: [][]common.Hash{{common.HexToHash(LogValueTopic0)}},
}
return fetcher.blockChain.GetEthLogsWithCustomQuery(query)
}

64
pkg/transformers/price_feeds/fetcher_test.go Normal file
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@ -0,0 +1,64 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds_test
import (
"math/big"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
var _ = Describe("Price fetcher", func() {
It("gets log value events from price feed medianizers", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}})
contractAddresses := []string{"pep-contract-address", "pip-contract-address", "rep-contract-address"}
fetcher := price_feeds.NewPriceFeedFetcher(mockBlockChain, contractAddresses)
blockNumber := int64(100)
_, err := fetcher.FetchLogValues(blockNumber)
Expect(err).NotTo(HaveOccurred())
var expectedAddresses []common.Address
for _, address := range contractAddresses {
expectedAddresses = append(expectedAddresses, common.HexToAddress(address))
}
expectedQuery := ethereum.FilterQuery{
FromBlock: big.NewInt(blockNumber),
ToBlock: big.NewInt(blockNumber),
Addresses: expectedAddresses,
Topics: [][]common.Hash{{common.HexToHash(price_feeds.LogValueTopic0)}},
}
mockBlockChain.AssertGetEthLogsWithCustomQueryCalledWith(expectedQuery)
})
It("returns error if getting logs fails", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryErr(fakes.FakeError)
fetcher := price_feeds.NewPriceFeedFetcher(mockBlockChain, []string{"contract-address"})
_, err := fetcher.FetchLogValues(100)
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
})

53
pkg/transformers/price_feeds/pep/fetcher.go
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@ -1,53 +0,0 @@
package pep
import (
"math/big"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type IPepFetcher interface {
FetchPepValue(header core.Header) (string, error)
}
type PepFetcher struct {
blockChain core.BlockChain
contractAddress string
}
func NewPepFetcher(chain core.BlockChain, contractAddress string) PepFetcher {
return PepFetcher{
blockChain: chain,
contractAddress: contractAddress,
}
}
func (fetcher PepFetcher) FetchPepValue(header core.Header) (string, error) {
blockNumber := big.NewInt(header.BlockNumber)
query := ethereum.FilterQuery{
FromBlock: blockNumber,
ToBlock: blockNumber,
Addresses: []common.Address{common.HexToAddress(fetcher.contractAddress)},
Topics: [][]common.Hash{{common.HexToHash(price_feeds.PepLogTopic0)}},
}
logs, err := fetcher.blockChain.GetEthLogsWithCustomQuery(query)
return fetcher.getLogValue(logs, err)
}
func (fetcher PepFetcher) getLogValue(logs []types.Log, err error) (string, error) {
if err != nil {
return "", err
}
if len(logs) < 1 {
return "", price_feeds.ErrNoMatchingLog
}
if len(logs) > 1 {
return "", price_feeds.ErrMultipleLogs
}
return string(logs[0].Data), nil
}

74
pkg/transformers/price_feeds/pep/fetcher_test.go
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@ -1,74 +0,0 @@
package pep_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pep"
"math/big"
)
var _ = Describe("Pep fetcher", func() {
It("gets logs describing updated mkr/usd value", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}})
contractAddress := "pep-contract-address"
fetcher := pep.NewPepFetcher(mockBlockChain, contractAddress)
blockNumber := int64(12345)
header := core.Header{
BlockNumber: blockNumber,
Hash: "",
Raw: nil,
}
_, err := fetcher.FetchPepValue(header)
Expect(err).NotTo(HaveOccurred())
expectedQuery := ethereum.FilterQuery{
FromBlock: big.NewInt(blockNumber),
ToBlock: big.NewInt(blockNumber),
Addresses: []common.Address{common.HexToAddress(contractAddress)},
Topics: [][]common.Hash{{common.HexToHash(price_feeds.PepLogTopic0)}},
}
mockBlockChain.AssertGetEthLogsWithCustomQueryCalledWith(expectedQuery)
})
It("returns error if getting logs fails", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}})
mockBlockChain.SetGetEthLogsWithCustomQueryErr(fakes.FakeError)
fetcher := pep.NewPepFetcher(mockBlockChain, "pep-contract-address")
_, err := fetcher.FetchPepValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
It("returns no matching logs error if no logs returned", func() {
mockBlockChain := fakes.NewMockBlockChain()
fetcher := pep.NewPepFetcher(mockBlockChain, "pep-contract-address")
_, err := fetcher.FetchPepValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(price_feeds.ErrNoMatchingLog))
})
It("returns error if more than one matching logs returned", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}, {}})
fetcher := pep.NewPepFetcher(mockBlockChain, "pep-contract-address")
_, err := fetcher.FetchPepValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(price_feeds.ErrMultipleLogs))
})
})

13
pkg/transformers/price_feeds/pep/pep_suite_test.go
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@ -1,13 +0,0 @@
package pep
import (
"testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func TestPep(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "Pep Suite")
}

25
pkg/transformers/price_feeds/pep/repository.go
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@ -1,25 +0,0 @@
package pep
import (
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type IPepRepository interface {
CreatePep(pep price_feeds.PriceUpdate) error
}
type PepRepository struct {
db *postgres.DB
}
func NewPepRepository(db *postgres.DB) PepRepository {
return PepRepository{
db: db,
}
}
func (repository PepRepository) CreatePep(pep price_feeds.PriceUpdate) error {
_, err := repository.db.Exec(`INSERT INTO maker.peps (block_number, header_id, usd_value) VALUES ($1, $2, $3::NUMERIC)`, pep.BlockNumber, pep.HeaderID, pep.UsdValue)
return err
}

51
pkg/transformers/price_feeds/pep/repository_test.go
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@ -1,51 +0,0 @@
package pep_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pep"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Pep repository", func() {
It("returns header if matching header does not exist", func() {
db := test_config.NewTestDB(core.Node{})
repository := pep.NewPepRepository(db)
pepToAdd := price_feeds.PriceUpdate{
BlockNumber: 0,
HeaderID: 0,
UsdValue: "123.456",
}
err := repository.CreatePep(pepToAdd)
Expect(err).To(HaveOccurred())
})
It("creates a pep when matching header exists", func() {
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
repository := pep.NewPepRepository(db)
header := core.Header{BlockNumber: 12345}
headerRepository := repositories.NewHeaderRepository(db)
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
pepToAdd := price_feeds.PriceUpdate{
BlockNumber: header.BlockNumber,
HeaderID: headerID,
UsdValue: "123.456",
}
err = repository.CreatePep(pepToAdd)
Expect(err).NotTo(HaveOccurred())
var dbPep price_feeds.PriceUpdate
err = db.Get(&dbPep, `SELECT block_number, header_id, usd_value FROM maker.peps WHERE header_id = $1`, pepToAdd.HeaderID)
Expect(err).NotTo(HaveOccurred())
Expect(dbPep).To(Equal(pepToAdd))
})
})

43
pkg/transformers/price_feeds/pep/transformer.go
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@ -1,43 +0,0 @@
package pep
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type PepTransformer struct {
fetcher IPepFetcher
repository IPepRepository
}
func NewPepTransformer(chain core.BlockChain, db *postgres.DB, contractAddress string) PepTransformer {
fetcher := NewPepFetcher(chain, contractAddress)
repository := NewPepRepository(db)
return PepTransformer{
fetcher: fetcher,
repository: repository,
}
}
func (transformer PepTransformer) Execute(header core.Header, headerID int64) error {
logValue, err := transformer.fetcher.FetchPepValue(header)
if err != nil {
if err == price_feeds.ErrNoMatchingLog {
return nil
}
return err
}
pep := getPep(logValue, header, headerID)
return transformer.repository.CreatePep(pep)
}
func getPep(logValue string, header core.Header, headerID int64) price_feeds.PriceUpdate {
valueInUSD := price_feeds.Convert("wad", logValue, 15)
pep := price_feeds.PriceUpdate{
BlockNumber: header.BlockNumber,
HeaderID: headerID,
UsdValue: valueInUSD,
}
return pep
}

46
pkg/transformers/price_feeds/pep/transformer_test.go
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@ -1,46 +0,0 @@
package pep_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pep"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Pep transformer", func() {
It("returns nil if no logs found", func() {
chain := fakes.NewMockBlockChain()
db := test_config.NewTestDB(core.Node{})
transformer := pep.NewPepTransformer(chain, db, "pep-contract-address")
err := transformer.Execute(core.Header{}, 123)
Expect(err).NotTo(HaveOccurred())
})
It("creates pep row for found log", func() {
chain := fakes.NewMockBlockChain()
chain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{Data: []byte{1, 2, 3, 4, 5}}})
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
headerRepository := repositories.NewHeaderRepository(db)
header := core.Header{BlockNumber: 12345}
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
transformer := pep.NewPepTransformer(chain, db, "pep-contract-address")
err = transformer.Execute(header, headerID)
Expect(err).NotTo(HaveOccurred())
var dbPep price_feeds.PriceUpdate
err = db.Get(&dbPep, `SELECT block_number, header_id, usd_value FROM maker.peps WHERE header_id = $1`, headerID)
Expect(err).NotTo(HaveOccurred())
Expect(dbPep.BlockNumber).To(Equal(header.BlockNumber))
})
})

77
pkg/transformers/price_feeds/pip/fetcher.go
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@ -1,77 +0,0 @@
package pip
import (
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"math/big"
)
type IPipFetcher interface {
FetchPipValue(header core.Header) (string, error)
}
type PipFetcher struct {
blockChain core.BlockChain
contractAddress string
}
func NewPipFetcher(chain core.BlockChain, contractAddress string) PipFetcher {
return PipFetcher{
blockChain: chain,
contractAddress: contractAddress,
}
}
func (fetcher PipFetcher) FetchPipValue(header core.Header) (string, error) {
blockNumber := big.NewInt(header.BlockNumber)
query := ethereum.FilterQuery{
FromBlock: blockNumber,
ToBlock: blockNumber,
Addresses: []common.Address{common.HexToAddress(fetcher.contractAddress)},
Topics: [][]common.Hash{{common.HexToHash(price_feeds.PipLogTopic0)}},
}
logs, err := fetcher.blockChain.GetEthLogsWithCustomQuery(query)
if err != nil {
return "", err
}
if len(logs) > 0 {
return fetcher.getLogValue(logs, err)
}
return "", price_feeds.ErrNoMatchingLog
}
func (fetcher PipFetcher) getLogValue(logs []types.Log, err error) (string, error) {
var (
ret0 = new([32]byte)
ret1 = new(bool)
)
var r = &[]interface{}{
ret0,
ret1,
}
err = fetcher.blockChain.FetchContractData(price_feeds.PipMedianizerABI, fetcher.contractAddress, price_feeds.PeekMethodName, nil, r, int64(logs[0].BlockNumber))
if err != nil {
return "", err
}
result := newResult(*ret0, *ret1)
return result.Value.String(), nil
}
type Value [32]byte
type Peek struct {
Value
OK bool
}
func (value Value) String() string {
bi := big.NewInt(0).SetBytes(value[:])
return bi.String()
}
func newResult(value [32]byte, ok bool) *Peek {
return &Peek{Value: value, OK: ok}
}

61
pkg/transformers/price_feeds/pip/fetcher_test.go
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@ -1,61 +0,0 @@
package pip_test
import (
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pip"
)
var _ = Describe("Pip fetcher", func() {
It("returns error if fetching logs fails", func() {
chain := fakes.NewMockBlockChain()
chain.SetGetEthLogsWithCustomQueryErr(fakes.FakeError)
fetcher := pip.NewPipFetcher(chain, "pip-contract-address")
_, err := fetcher.FetchPipValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
It("returns no matching logs error if no logs returned", func() {
chain := fakes.NewMockBlockChain()
fetcher := pip.NewPipFetcher(chain, "pip-contract-address")
_, err := fetcher.FetchPipValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(price_feeds.ErrNoMatchingLog))
})
Describe("when matching log found", func() {
It("calls contract to peek current eth/usd value", func() {
blockNumber := uint64(12345)
chain := fakes.NewMockBlockChain()
chain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{BlockNumber: blockNumber}})
contractAddress := "pip-contract-address"
fetcher := pip.NewPipFetcher(chain, contractAddress)
_, err := fetcher.FetchPipValue(core.Header{})
Expect(err).NotTo(HaveOccurred())
chain.AssertFetchContractDataCalledWith(price_feeds.PipMedianizerABI, contractAddress, price_feeds.PeekMethodName, nil, &[]interface{}{[32]byte{}, false}, int64(blockNumber))
})
It("returns error if contract call fails", func() {
chain := fakes.NewMockBlockChain()
chain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{BlockNumber: uint64(12345)}})
chain.SetFetchContractDataErr(fakes.FakeError)
fetcher := pip.NewPipFetcher(chain, "pip-contract-address")
_, err := fetcher.FetchPipValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
})
})

13
pkg/transformers/price_feeds/pip/pip_suite_test.go
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@ -1,13 +0,0 @@
package pip
import (
"testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func TestPip(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "Pip Suite")
}

25
pkg/transformers/price_feeds/pip/repository.go
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@ -1,25 +0,0 @@
package pip
import (
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type IPipRepository interface {
CreatePip(pip price_feeds.PriceUpdate) error
}
type PipRepository struct {
db *postgres.DB
}
func NewPipRepository(db *postgres.DB) PipRepository {
return PipRepository{
db: db,
}
}
func (repository PipRepository) CreatePip(pip price_feeds.PriceUpdate) error {
_, err := repository.db.Exec(`INSERT INTO maker.pips (block_number, header_id, usd_value) VALUES ($1, $2, $3::NUMERIC)`, pip.BlockNumber, pip.HeaderID, pip.UsdValue)
return err
}

51
pkg/transformers/price_feeds/pip/repository_test.go
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@ -1,51 +0,0 @@
package pip_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pip"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Pip repository", func() {
It("does not create a pip if no matching header", func() {
db := test_config.NewTestDB(core.Node{})
repository := pip.NewPipRepository(db)
priceUpdate := price_feeds.PriceUpdate{
BlockNumber: 0,
HeaderID: 0,
UsdValue: "123",
}
err := repository.CreatePip(priceUpdate)
Expect(err).To(HaveOccurred())
})
It("creates a pip when header exists", func() {
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
repository := pip.NewPipRepository(db)
headerRepository := repositories.NewHeaderRepository(db)
header := core.Header{BlockNumber: 12345}
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
priceUpdate := price_feeds.PriceUpdate{
BlockNumber: header.BlockNumber,
HeaderID: headerID,
UsdValue: "777.777",
}
err = repository.CreatePip(priceUpdate)
Expect(err).NotTo(HaveOccurred())
var dbPip price_feeds.PriceUpdate
err = db.Get(&dbPip, `SELECT block_number, header_id, usd_value FROM maker.pips WHERE block_number = $1`, header.BlockNumber)
Expect(err).NotTo(HaveOccurred())
Expect(dbPip).To(Equal(priceUpdate))
})
})

43
pkg/transformers/price_feeds/pip/transformer.go
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@ -1,43 +0,0 @@
package pip
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type PipTransformer struct {
fetcher IPipFetcher
repository IPipRepository
}
func NewPipTransformer(chain core.BlockChain, db *postgres.DB, contractAddress string) PipTransformer {
fetcher := NewPipFetcher(chain, contractAddress)
repository := NewPipRepository(db)
return PipTransformer{
fetcher: fetcher,
repository: repository,
}
}
func (transformer PipTransformer) Execute(header core.Header, headerID int64) error {
value, err := transformer.fetcher.FetchPipValue(header)
if err != nil {
if err == price_feeds.ErrNoMatchingLog {
return nil
}
return err
}
pip := getPip(value, header, headerID)
return transformer.repository.CreatePip(pip)
}
func getPip(logValue string, header core.Header, headerID int64) price_feeds.PriceUpdate {
valueInUSD := price_feeds.Convert("wad", logValue, 15)
pep := price_feeds.PriceUpdate{
BlockNumber: header.BlockNumber,
HeaderID: headerID,
UsdValue: valueInUSD,
}
return pep
}

45
pkg/transformers/price_feeds/pip/transformer_test.go
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@ -1,45 +0,0 @@
package pip_test
import (
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/pip"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Pip transformer", func() {
It("returns nil if no logs found", func() {
chain := fakes.NewMockBlockChain()
db := test_config.NewTestDB(core.Node{})
transformer := pip.NewPipTransformer(chain, db, "pip-contract-address")
err := transformer.Execute(core.Header{}, 123)
Expect(err).NotTo(HaveOccurred())
})
It("creates pip row for found log", func() {
chain := fakes.NewMockBlockChain()
chain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{Data: []byte{1, 2, 3, 4, 5}}})
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
headerRepository := repositories.NewHeaderRepository(db)
header := core.Header{BlockNumber: 12345}
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
transformer := pip.NewPipTransformer(chain, db, "pip-contract-address")
err = transformer.Execute(header, headerID)
Expect(err).NotTo(HaveOccurred())
var dbPip price_feeds.PriceUpdate
err = db.Get(&dbPip, `SELECT block_number, header_id, usd_value FROM maker.pips WHERE header_id = $1`, headerID)
Expect(err).NotTo(HaveOccurred())
Expect(dbPip.BlockNumber).To(Equal(header.BlockNumber))
})
})

27
pkg/transformers/price_feeds/price_feeds_suite_test.go Normal file
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@ -0,0 +1,27 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds_test
import (
"testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func TestPriceFeeds(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "PriceFeeds Suite")
}

29
pkg/transformers/price_feeds/price_update.go
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@ -1,11 +1,34 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import "math/big"
import (
"github.com/ethereum/go-ethereum/common"
"math/big"
)
type PriceUpdate struct {
BlockNumber int64 `db:"block_number"`
type LogValueEntity struct {
Val common.Address
}
type PriceFeedModel struct {
BlockNumber uint64 `db:"block_number"`
HeaderID int64 `db:"header_id"`
MedianizerAddress []byte `db:"medianizer_address"`
UsdValue string `db:"usd_value"`
TransactionIndex uint `db:"tx_idx"`
}
func Convert(conversion string, value string, prec int) string {

51
pkg/transformers/price_feeds/rep/fetcher.go
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@ -1,51 +0,0 @@
package rep
import (
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"math/big"
)
type IRepFetcher interface {
FetchRepValue(header core.Header) (string, error)
}
type RepFetcher struct {
chain core.BlockChain
contractAddress string
}
func NewRepFetcher(chain core.BlockChain, contractAddress string) RepFetcher {
return RepFetcher{
chain: chain,
contractAddress: contractAddress,
}
}
func (fetcher RepFetcher) FetchRepValue(header core.Header) (string, error) {
blockNumber := big.NewInt(header.BlockNumber)
query := ethereum.FilterQuery{
FromBlock: blockNumber,
ToBlock: blockNumber,
Addresses: []common.Address{common.HexToAddress(fetcher.contractAddress)},
Topics: [][]common.Hash{{common.HexToHash(price_feeds.RepLogTopic0)}},
}
logs, err := fetcher.chain.GetEthLogsWithCustomQuery(query)
return fetcher.getLogValue(logs, err)
}
func (fetcher RepFetcher) getLogValue(logs []types.Log, err error) (string, error) {
if err != nil {
return "", err
}
if len(logs) < 1 {
return "", price_feeds.ErrNoMatchingLog
}
if len(logs) > 1 {
return "", price_feeds.ErrMultipleLogs
}
return string(logs[0].Data), nil
}

72
pkg/transformers/price_feeds/rep/fetcher_test.go
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@ -1,72 +0,0 @@
package rep_test
import (
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/rep"
"math/big"
)
var _ = Describe("Rep fetcher", func() {
It("gets logs describing updated rep/usd value", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}})
contractAddress := "rep-contract-address"
fetcher := rep.NewRepFetcher(mockBlockChain, contractAddress)
blockNumber := int64(100)
header := core.Header{
BlockNumber: blockNumber,
Hash: "",
Raw: nil,
}
_, err := fetcher.FetchRepValue(header)
Expect(err).NotTo(HaveOccurred())
expectedQuery := ethereum.FilterQuery{
FromBlock: big.NewInt(blockNumber),
ToBlock: big.NewInt(blockNumber),
Addresses: []common.Address{common.HexToAddress(contractAddress)},
Topics: [][]common.Hash{{common.HexToHash(price_feeds.RepLogTopic0)}},
}
mockBlockChain.AssertGetEthLogsWithCustomQueryCalledWith(expectedQuery)
})
It("returns error if getting logs fails", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryErr(fakes.FakeError)
fetcher := rep.NewRepFetcher(mockBlockChain, "rep-contract-address")
_, err := fetcher.FetchRepValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
It("returns no matching logs error if no logs returned", func() {
mockBlockChain := fakes.NewMockBlockChain()
fetcher := rep.NewRepFetcher(mockBlockChain, "rep-contract-address")
_, err := fetcher.FetchRepValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(price_feeds.ErrNoMatchingLog))
})
It("returns error if more than one matching logs returned", func() {
mockBlockChain := fakes.NewMockBlockChain()
mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}, {}})
fetcher := rep.NewRepFetcher(mockBlockChain, "rep-contract-address")
_, err := fetcher.FetchRepValue(core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(price_feeds.ErrMultipleLogs))
})
})

13
pkg/transformers/price_feeds/rep/rep_suite_test.go
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@ -1,13 +0,0 @@
package rep_test
import (
"testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func TestRep(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "Rep Suite")
}

25
pkg/transformers/price_feeds/rep/repository.go
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@ -1,25 +0,0 @@
package rep
import (
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type IRepRepository interface {
CreateRep(rep price_feeds.PriceUpdate) error
}
type RepRepository struct {
db *postgres.DB
}
func NewRepRepository(db *postgres.DB) RepRepository {
return RepRepository{
db: db,
}
}
func (repository RepRepository) CreateRep(rep price_feeds.PriceUpdate) error {
_, err := repository.db.Exec(`INSERT INTO maker.reps (block_number, header_id, usd_value) VALUES ($1, $2, $3::NUMERIC)`, rep.BlockNumber, rep.HeaderID, rep.UsdValue)
return err
}

50
pkg/transformers/price_feeds/rep/repository_test.go
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@ -1,50 +0,0 @@
package rep_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/rep"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Rep repository", func() {
It("returns header if matching header does not exist", func() {
db := test_config.NewTestDB(core.Node{})
repository := rep.NewRepRepository(db)
pepToAdd := price_feeds.PriceUpdate{
BlockNumber: 0,
HeaderID: 0,
UsdValue: "123.456",
}
err := repository.CreateRep(pepToAdd)
Expect(err).To(HaveOccurred())
})
It("creates a rep when matching header exists", func() {
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
repository := rep.NewRepRepository(db)
header := core.Header{BlockNumber: 12345}
headerRepository := repositories.NewHeaderRepository(db)
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
pepToAdd := price_feeds.PriceUpdate{
BlockNumber: header.BlockNumber,
HeaderID: headerID,
UsdValue: "123.456",
}
err = repository.CreateRep(pepToAdd)
Expect(err).NotTo(HaveOccurred())
var dbRep price_feeds.PriceUpdate
err = db.Get(&dbRep, `SELECT block_number, header_id, usd_value FROM maker.reps WHERE header_id = $1`, pepToAdd.HeaderID)
Expect(err).NotTo(HaveOccurred())
Expect(dbRep).To(Equal(pepToAdd))
})
})

43
pkg/transformers/price_feeds/rep/transformer.go
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@ -1,43 +0,0 @@
package rep
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type RepTransformer struct {
fetcher IRepFetcher
repository IRepRepository
}
func NewRepTransformer(chain core.BlockChain, db *postgres.DB, contractAddress string) RepTransformer {
fetcher := NewRepFetcher(chain, contractAddress)
repository := NewRepRepository(db)
return RepTransformer{
fetcher: fetcher,
repository: repository,
}
}
func (transformer RepTransformer) Execute(header core.Header, headerID int64) error {
logValue, err := transformer.fetcher.FetchRepValue(header)
if err != nil {
if err == price_feeds.ErrNoMatchingLog {
return nil
}
return err
}
rep := getRep(logValue, header, headerID)
return transformer.repository.CreateRep(rep)
}
func getRep(logValue string, header core.Header, headerID int64) price_feeds.PriceUpdate {
valueInUSD := price_feeds.Convert("wad", logValue, 15)
rep := price_feeds.PriceUpdate{
BlockNumber: header.BlockNumber,
HeaderID: headerID,
UsdValue: valueInUSD,
}
return rep
}

46
pkg/transformers/price_feeds/rep/transformer_test.go
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@ -1,46 +0,0 @@
package rep_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds/rep"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Rep transformer", func() {
It("returns nil if no logs found", func() {
chain := fakes.NewMockBlockChain()
db := test_config.NewTestDB(core.Node{})
transformer := rep.NewRepTransformer(chain, db, "rep-contract-address")
err := transformer.Execute(core.Header{}, 123)
Expect(err).NotTo(HaveOccurred())
})
It("creates rep row for found log", func() {
chain := fakes.NewMockBlockChain()
chain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{Data: []byte{1, 2, 3, 4, 5}}})
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
headerRepository := repositories.NewHeaderRepository(db)
header := core.Header{BlockNumber: 12345}
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
transformer := rep.NewRepTransformer(chain, db, "rep-contract-address")
err = transformer.Execute(header, headerID)
Expect(err).NotTo(HaveOccurred())
var dbRep price_feeds.PriceUpdate
err = db.Get(&dbRep, `SELECT block_number, header_id, usd_value FROM maker.reps WHERE header_id = $1`, headerID)
Expect(err).NotTo(HaveOccurred())
Expect(dbRep.BlockNumber).To(Equal(header.BlockNumber))
})
})

56
pkg/transformers/price_feeds/repository.go Normal file
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@ -0,0 +1,56 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
)
type IPriceFeedRepository interface {
Create(model PriceFeedModel) error
MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error)
}
type PriceFeedRepository struct {
db *postgres.DB
}
func NewPriceFeedRepository(db *postgres.DB) PriceFeedRepository {
return PriceFeedRepository{db: db}
}
func (repository PriceFeedRepository) Create(model PriceFeedModel) error {
_, err := repository.db.Exec(`INSERT INTO maker.price_feeds (block_number, header_id, medianizer_address, usd_value, tx_idx)
VALUES ($1, $2, $3, $4::NUMERIC, $5)`, model.BlockNumber, model.HeaderID, model.MedianizerAddress, model.UsdValue, model.TransactionIndex)
return err
}
func (repository PriceFeedRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
var result []core.Header
err := repository.db.Select(
&result,
`SELECT headers.id, headers.block_number FROM headers
LEFT JOIN maker.price_feeds on headers.id = header_id
WHERE header_id ISNULL
AND headers.block_number >= $1
AND headers.block_number <= $2
AND headers.eth_node_fingerprint = $3`,
startingBlockNumber,
endingBlockNumber,
repository.db.Node.ID,
)
return result, err
}

147
pkg/transformers/price_feeds/repository_test.go Normal file
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@ -0,0 +1,147 @@
// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds_test
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("Price feeds repository", func() {
Describe("Create", func() {
It("persists a price feed update", func() {
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
headerRepository := repositories.NewHeaderRepository(db)
blockNumber := uint64(12345)
header := core.Header{BlockNumber: int64(blockNumber)}
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
priceFeedUpdate := price_feeds.PriceFeedModel{
BlockNumber: blockNumber,
HeaderID: headerID,
MedianizerAddress: []byte{1, 2, 3, 4, 5},
UsdValue: "123.45",
TransactionIndex: 1,
}
priceFeedRepository := price_feeds.NewPriceFeedRepository(db)
err = priceFeedRepository.Create(priceFeedUpdate)
Expect(err).NotTo(HaveOccurred())
var dbPriceFeedUpdate price_feeds.PriceFeedModel
err = db.Get(&dbPriceFeedUpdate, `SELECT block_number, header_id, medianizer_address, usd_value, tx_idx FROM maker.price_feeds WHERE header_id = $1`, headerID)
Expect(err).NotTo(HaveOccurred())
Expect(dbPriceFeedUpdate).To(Equal(priceFeedUpdate))
})
It("does not duplicate price feed updates", func() {
db := test_config.NewTestDB(core.Node{})
test_config.CleanTestDB(db)
headerRepository := repositories.NewHeaderRepository(db)
blockNumber := uint64(12345)
header := core.Header{BlockNumber: int64(blockNumber)}
headerID, err := headerRepository.CreateOrUpdateHeader(header)
Expect(err).NotTo(HaveOccurred())
priceFeedUpdate := price_feeds.PriceFeedModel{
BlockNumber: blockNumber,
HeaderID: headerID,
MedianizerAddress: []byte{1, 2, 3, 4, 5},
UsdValue: "123.45",
TransactionIndex: 1,
}
priceFeedRepository := price_feeds.NewPriceFeedRepository(db)
err = priceFeedRepository.Create(priceFeedUpdate)
Expect(err).NotTo(HaveOccurred())
err = priceFeedRepository.Create(priceFeedUpdate)
Expect(err).To(HaveOccurred())
})
})
Describe("MissingHeaders", func() {
It("returns headers with no associated price feed event", func() {
node := core.Node{}
db := test_config.NewTestDB(node)
test_config.CleanTestDB(db)
headerRepository := repositories.NewHeaderRepository(db)
startingBlockNumber := int64(1)
priceFeedBlockNumber := int64(2)
endingBlockNumber := int64(3)
blockNumbers := []int64{startingBlockNumber, priceFeedBlockNumber, endingBlockNumber, endingBlockNumber + 1}
var headerIDs []int64
for _, n := range blockNumbers {
headerID, err := headerRepository.CreateOrUpdateHeader(core.Header{BlockNumber: n})
headerIDs = append(headerIDs, headerID)
Expect(err).NotTo(HaveOccurred())
}
priceFeedRepository := price_feeds.NewPriceFeedRepository(db)
priceFeedUpdate := price_feeds.PriceFeedModel{
BlockNumber: uint64(blockNumbers[1]),
HeaderID: headerIDs[1],
UsdValue: "123.45",
}
err := priceFeedRepository.Create(priceFeedUpdate)
Expect(err).NotTo(HaveOccurred())
headers, err := priceFeedRepository.MissingHeaders(startingBlockNumber, endingBlockNumber)
Expect(err).NotTo(HaveOccurred())
Expect(len(headers)).To(Equal(2))
Expect(headers[0].BlockNumber).To(Or(Equal(startingBlockNumber), Equal(endingBlockNumber)))
Expect(headers[1].BlockNumber).To(Or(Equal(startingBlockNumber), Equal(endingBlockNumber)))
})
It("only returns headers associated with the current node", func() {
nodeOne := core.Node{}
db := test_config.NewTestDB(nodeOne)
test_config.CleanTestDB(db)
blockNumbers := []int64{1, 2, 3}
headerRepository := repositories.NewHeaderRepository(db)
nodeTwo := core.Node{ID: "second"}
dbTwo := test_config.NewTestDB(nodeTwo)
headerRepositoryTwo := repositories.NewHeaderRepository(dbTwo)
var headerIDs []int64
for _, n := range blockNumbers {
headerID, err := headerRepository.CreateOrUpdateHeader(core.Header{BlockNumber: n})
Expect(err).NotTo(HaveOccurred())
headerIDs = append(headerIDs, headerID)
_, err = headerRepositoryTwo.CreateOrUpdateHeader(core.Header{BlockNumber: n})
Expect(err).NotTo(HaveOccurred())
}
priceFeedRepository := price_feeds.NewPriceFeedRepository(db)
priceFeedRepositoryTwo := price_feeds.NewPriceFeedRepository(dbTwo)
err := priceFeedRepository.Create(price_feeds.PriceFeedModel{
HeaderID: headerIDs[0],
UsdValue: "123.45",
})
Expect(err).NotTo(HaveOccurred())
nodeOneMissingHeaders, err := priceFeedRepository.MissingHeaders(blockNumbers[0], blockNumbers[len(blockNumbers)-1])
Expect(err).NotTo(HaveOccurred())
Expect(len(nodeOneMissingHeaders)).To(Equal(len(blockNumbers) - 1))
nodeTwoMissingHeaders, err := priceFeedRepositoryTwo.MissingHeaders(blockNumbers[0], blockNumbers[len(blockNumbers)-1])
Expect(err).NotTo(HaveOccurred())
Expect(len(nodeTwoMissingHeaders)).To(Equal(len(blockNumbers)))
})
})
})

65
pkg/transformers/price_feeds/transformer.go Normal file
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// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
)
type PriceFeedTransformerInitializer struct {
Config IPriceFeedConfig
}
func (initializer PriceFeedTransformerInitializer) NewPriceFeedTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
converter := PriceFeedConverter{}
fetcher := NewPriceFeedFetcher(blockChain, initializer.Config.ContractAddresses)
repository := NewPriceFeedRepository(db)
return PriceFeedTransformer{
Config: initializer.Config,
converter: converter,
Fetcher: fetcher,
Repository: repository,
}
}
type PriceFeedTransformer struct {
Config IPriceFeedConfig
converter PriceFeedConverter
Fetcher IPriceFeedFetcher
Repository IPriceFeedRepository
}
func (transformer PriceFeedTransformer) Execute() error {
headers, err := transformer.Repository.MissingHeaders(transformer.Config.StartingBlockNumber, transformer.Config.EndingBlockNumber)
if err != nil {
return err
}
for _, header := range headers {
logs, err := transformer.Fetcher.FetchLogValues(header.BlockNumber)
if err != nil {
return err
}
for _, log := range logs {
model := transformer.converter.ToModel(log, header.Id)
err = transformer.Repository.Create(model)
if err != nil {
return err
}
}
}
return nil
}

150
pkg/transformers/price_feeds/transformer_test.go Normal file
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// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds_test
import (
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
price_feeds2 "github.com/vulcanize/vulcanizedb/pkg/transformers/test_data/mocks/price_feeds"
"math/big"
)
var _ = Describe("Price feed transformer", func() {
It("gets missing headers for price feeds", func() {
mockRepository := &price_feeds2.MockPriceFeedRepository{}
transformer := price_feeds.PriceFeedTransformer{
Config: price_feeds.PriceFeedConfig,
Fetcher: &price_feeds2.MockPriceFeedFetcher{},
Repository: mockRepository,
}
err := transformer.Execute()
Expect(err).NotTo(HaveOccurred())
mockRepository.AssertMissingHeadersCalledwith(price_feeds.PriceFeedConfig.StartingBlockNumber, price_feeds.PriceFeedConfig.EndingBlockNumber)
})
It("returns error is missing headers call returns err", func() {
mockRepository := &price_feeds2.MockPriceFeedRepository{}
mockRepository.SetMissingHeadersErr(fakes.FakeError)
transformer := price_feeds.PriceFeedTransformer{
Fetcher: &price_feeds2.MockPriceFeedFetcher{},
Repository: mockRepository,
}
err := transformer.Execute()
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
It("fetches logs for missing headers", func() {
mockRepository := &price_feeds2.MockPriceFeedRepository{}
blockNumberOne := int64(1)
blockNumberTwo := int64(2)
mockRepository.SetMissingHeaders([]core.Header{{BlockNumber: blockNumberOne}, {BlockNumber: blockNumberTwo}})
mockFetcher := &price_feeds2.MockPriceFeedFetcher{}
transformer := price_feeds.PriceFeedTransformer{
Fetcher: mockFetcher,
Repository: mockRepository,
}
err := transformer.Execute()
Expect(err).NotTo(HaveOccurred())
mockFetcher.AssertFetchLogValuesCalledWith([]int64{blockNumberOne, blockNumberTwo})
})
It("returns err if fetcher returns err", func() {
mockRepository := &price_feeds2.MockPriceFeedRepository{}
mockRepository.SetMissingHeaders([]core.Header{{BlockNumber: 1}})
mockFetcher := &price_feeds2.MockPriceFeedFetcher{}
mockFetcher.SetReturnErr(fakes.FakeError)
transformer := price_feeds.PriceFeedTransformer{
Fetcher: mockFetcher,
Repository: mockRepository,
}
err := transformer.Execute()
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
It("persists model converted from log", func() {
mockRepository := &price_feeds2.MockPriceFeedRepository{}
headerID := int64(11111)
mockRepository.SetMissingHeaders([]core.Header{{BlockNumber: 1, Id: headerID}})
mockFetcher := &price_feeds2.MockPriceFeedFetcher{}
blockNumber := uint64(22222)
txIndex := uint(33333)
usdValue := int64(44444)
etherMultiplier, _ := price_feeds.Ether.Int64()
rawUsdValue := big.NewInt(0)
rawUsdValue = rawUsdValue.Mul(big.NewInt(usdValue), big.NewInt(etherMultiplier))
address := common.BytesToAddress([]byte{1, 2, 3, 4, 5})
fakeLog := types.Log{
Address: address,
Topics: nil,
Data: rawUsdValue.Bytes(),
BlockNumber: blockNumber,
TxHash: common.Hash{},
TxIndex: txIndex,
BlockHash: common.Hash{},
Index: 0,
Removed: false,
}
mockFetcher.SetReturnLogs([]types.Log{fakeLog})
transformer := price_feeds.PriceFeedTransformer{
Fetcher: mockFetcher,
Repository: mockRepository,
}
err := transformer.Execute()
Expect(err).NotTo(HaveOccurred())
expectedModel := price_feeds.PriceFeedModel{
BlockNumber: blockNumber,
HeaderID: headerID,
MedianizerAddress: address.Bytes(),
UsdValue: fmt.Sprintf("%d", usdValue),
TransactionIndex: txIndex,
}
mockRepository.AssertCreateCalledWith(expectedModel)
})
It("returns error if creating price feed update returns error", func() {
mockRepository := &price_feeds2.MockPriceFeedRepository{}
mockRepository.SetMissingHeaders([]core.Header{{BlockNumber: 1, Id: 2}})
mockRepository.SetCreateErr(fakes.FakeError)
mockFetcher := &price_feeds2.MockPriceFeedFetcher{}
mockFetcher.SetReturnLogs([]types.Log{{}})
transformer := price_feeds.PriceFeedTransformer{
Fetcher: mockFetcher,
Repository: mockRepository,
}
err := transformer.Execute()
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
})

8
pkg/transformers/shared/transformer.go
View File

@ -27,6 +27,14 @@ type Transformer interface {
type TransformerInitializer func(db *postgres.DB, blockChain core.BlockChain) Transformer
type TransformerConfig struct {
ContractAddresses string
ContractAbi string
Topics []string
StartingBlockNumber int64
EndingBlockNumber int64
}
func HexToInt64(byteString string) int64 {
value := common.HexToHash(byteString)
return value.Big().Int64()

29
pkg/transformers/test_data/mocks/price_feeds/fetcher.go Normal file
View File

@ -0,0 +1,29 @@
package price_feeds
import (
"github.com/ethereum/go-ethereum/core/types"
. "github.com/onsi/gomega"
)
type MockPriceFeedFetcher struct {
passedBlockNumbers []int64
returnErr error
returnLogs []types.Log
}
func (fetcher *MockPriceFeedFetcher) SetReturnErr(err error) {
fetcher.returnErr = err
}
func (fetcher *MockPriceFeedFetcher) SetReturnLogs(logs []types.Log) {
fetcher.returnLogs = logs
}
func (fetcher *MockPriceFeedFetcher) FetchLogValues(blockNumber int64) ([]types.Log, error) {
fetcher.passedBlockNumbers = append(fetcher.passedBlockNumbers, blockNumber)
return fetcher.returnLogs, fetcher.returnErr
}
func (fetcher *MockPriceFeedFetcher) AssertFetchLogValuesCalledWith(blockNumbers []int64) {
Expect(fetcher.passedBlockNumbers).To(Equal(blockNumbers))
}

49
pkg/transformers/test_data/mocks/price_feeds/repository.go Normal file
View File

@ -0,0 +1,49 @@
package price_feeds
import (
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
)
type MockPriceFeedRepository struct {
createErr error
missingHeaders []core.Header
missingHeadersErr error
passedEndingBlockNumber int64
passedModel price_feeds.PriceFeedModel
passedStartingBlockNumber int64
}
func (repository *MockPriceFeedRepository) SetCreateErr(err error) {
repository.createErr = err
}
func (repository *MockPriceFeedRepository) SetMissingHeadersErr(err error) {
repository.missingHeadersErr = err
}
func (repository *MockPriceFeedRepository) SetMissingHeaders(headers []core.Header) {
repository.missingHeaders = headers
}
func (repository *MockPriceFeedRepository) Create(model price_feeds.PriceFeedModel) error {
repository.passedModel = model
return repository.createErr
}
func (repository *MockPriceFeedRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
repository.passedStartingBlockNumber = startingBlockNumber
repository.passedEndingBlockNumber = endingBlockNumber
return repository.missingHeaders, repository.missingHeadersErr
}
func (repository *MockPriceFeedRepository) AssertCreateCalledWith(model price_feeds.PriceFeedModel) {
Expect(repository.passedModel).To(Equal(model))
}
func (repository *MockPriceFeedRepository) AssertMissingHeadersCalledwith(startingBlockNumber, endingBlockNumber int64) {
Expect(repository.passedStartingBlockNumber).To(Equal(startingBlockNumber))
Expect(repository.passedEndingBlockNumber).To(Equal(endingBlockNumber))
}

9
pkg/transformers/transformer.go
View File

@ -1,9 +0,0 @@
package transformers
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
)
type Transformer interface {
Execute(header core.Header, headerID int64) error
}

4
pkg/transformers/transformers.go
View File

@ -17,6 +17,7 @@ package transformers
import (
"github.com/vulcanize/vulcanizedb/pkg/transformers/flip_kick"
"github.com/vulcanize/vulcanizedb/pkg/transformers/frob"
"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
)
@ -25,8 +26,11 @@ func TransformerInitializers() []shared.TransformerInitializer {
flipKickTransformerInitializer := flip_kick.FlipKickTransformerInitializer{Config: flipKickConfig}
frobConfig := frob.FrobConfig
frobTransformerInitializer := frob.FrobTransformerInitializer{Config: frobConfig}
priceFeedConfig := price_feeds.PriceFeedConfig
priceFeedTransformerInitializer := price_feeds.PriceFeedTransformerInitializer{Config: priceFeedConfig}
return []shared.TransformerInitializer{
flipKickTransformerInitializer.NewFlipKickTransformer,
frobTransformerInitializer.NewFrobTransformer,
priceFeedTransformerInitializer.NewPriceFeedTransformer,
}
}

3
test_config/test_config.go
View File

@ -77,9 +77,6 @@ func CleanTestDB(db *postgres.DB) {
db.MustExec("DELETE FROM headers")
db.MustExec("DELETE FROM log_filters")
db.MustExec("DELETE FROM logs")
db.MustExec("DELETE FROM maker.peps")
db.MustExec("DELETE FROM maker.pips")
db.MustExec("DELETE FROM maker.reps")
db.MustExec("DELETE FROM receipts")
db.MustExec("DELETE FROM transactions")
db.MustExec("DELETE FROM watched_contracts")