Backfill Pit.file log events

db/migrations/1535667935_create_pit_file_table.down.sql

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

db/migrations/1535667935_create_pit_file_table.up.sql

@@ -0,0 +1,10 @@
+CREATE TABLE maker.pit_file (
+  id            SERIAL PRIMARY KEY,
+  header_id     INTEGER NOT NULL REFERENCES headers (id) ON DELETE CASCADE,
+  ilk           TEXT,
+  what          TEXT,
+  risk          NUMERIC,
+	tx_idx        INTEGER NOT NUll,
+  raw_log       JSONB,
+  UNIQUE (header_id, tx_idx)
+);

db/schema.sql

@@ -155,6 +155,41 @@ CREATE SEQUENCE maker.frob_id_seq
 ALTER SEQUENCE maker.frob_id_seq OWNED BY maker.frob.id;
 
 
+--
+-- Name: pit_file; Type: TABLE; Schema: maker; Owner: -
+--
+
+CREATE TABLE maker.pit_file (
+    id integer NOT NULL,
+    header_id integer NOT NULL,
+    ilk text,
+    what text,
+    risk numeric,
+    tx_idx integer NOT NULL,
+    raw_log jsonb
+);
+
+
+--
+-- Name: pit_file_id_seq; Type: SEQUENCE; Schema: maker; Owner: -
+--
+
+CREATE SEQUENCE maker.pit_file_id_seq
+    AS integer
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+--
+-- Name: pit_file_id_seq; Type: SEQUENCE OWNED BY; Schema: maker; Owner: -
+--
+
+ALTER SEQUENCE maker.pit_file_id_seq OWNED BY maker.pit_file.id;
+
+
 --
 -- Name: price_feeds; Type: TABLE; Schema: maker; Owner: -
 --
@@ -619,6 +654,13 @@ ALTER TABLE ONLY maker.flip_kick ALTER COLUMN db_id SET DEFAULT nextval('maker.f
 ALTER TABLE ONLY maker.frob ALTER COLUMN id SET DEFAULT nextval('maker.frob_id_seq'::regclass);
 
 
+--
+-- Name: pit_file id; Type: DEFAULT; Schema: maker; Owner: -
+--
+
+ALTER TABLE ONLY maker.pit_file ALTER COLUMN id SET DEFAULT nextval('maker.pit_file_id_seq'::regclass);
+
+
 --
 -- Name: price_feeds id; Type: DEFAULT; Schema: maker; Owner: -
 --
@@ -744,6 +786,22 @@ ALTER TABLE ONLY maker.frob
     ADD CONSTRAINT frob_pkey PRIMARY KEY (id);
 
 
+--
+-- Name: pit_file pit_file_header_id_tx_idx_key; Type: CONSTRAINT; Schema: maker; Owner: -
+--
+
+ALTER TABLE ONLY maker.pit_file
+    ADD CONSTRAINT pit_file_header_id_tx_idx_key UNIQUE (header_id, tx_idx);
+
+
+--
+-- Name: pit_file pit_file_pkey; Type: CONSTRAINT; Schema: maker; Owner: -
+--
+
+ALTER TABLE ONLY maker.pit_file
+    ADD CONSTRAINT pit_file_pkey PRIMARY KEY (id);
+
+
 --
 -- Name: price_feeds price_feeds_header_id_medianizer_address_tx_idx_key; Type: CONSTRAINT; Schema: maker; Owner: -
 --
@@ -939,6 +997,14 @@ ALTER TABLE ONLY maker.price_feeds
     ADD CONSTRAINT headers_fk FOREIGN KEY (header_id) REFERENCES public.headers(id) ON DELETE CASCADE;
 
 
+--
+-- Name: pit_file pit_file_header_id_fkey; Type: FK CONSTRAINT; Schema: maker; Owner: -
+--
+
+ALTER TABLE ONLY maker.pit_file
+    ADD CONSTRAINT pit_file_header_id_fkey FOREIGN KEY (header_id) REFERENCES public.headers(id) ON DELETE CASCADE;
+
+
 --
 -- Name: tend tend_header_id_fkey; Type: FK CONSTRAINT; Schema: maker; Owner: -
 --

pkg/transformers/bite/bite_suite_test.go

@@ -19,9 +19,15 @@ import (
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
+	"io/ioutil"
+	"log"
 )
 
 func TestBite(t *testing.T) {
 	RegisterFailHandler(Fail)
 	RunSpecs(t, "Bite Suite")
 }
+
+var _ = BeforeSuite(func() {
+	log.SetOutput(ioutil.Discard)
+})

pkg/transformers/bite/config.go

@@ -21,7 +21,7 @@ import (
 )
 
 var BiteConfig = shared.TransformerConfig{
-	ContractAddresses:   "0xe0f0fa6982c59d8aa4ae0134bfe048327bd788cacf758b643ca41f055ffce76c", //this is a temporary address deployed locally
+	ContractAddress:     "0xe0f0fa6982c59d8aa4ae0134bfe048327bd788cacf758b643ca41f055ffce76c", //this is a temporary address deployed locally
 	ContractAbi:         BiteABI,
 	Topics:              []string{BiteSignature},
 	StartingBlockNumber: 0,

pkg/transformers/bite/transformer.go

@@ -59,14 +59,14 @@ func (b BiteTransformer) Execute() error {
 	}
 
 	for _, header := range missingHeaders {
-		ethLogs, err := b.Fetcher.FetchLogs(config.ContractAddresses, topics, header.BlockNumber)
+		ethLogs, err := b.Fetcher.FetchLogs(config.ContractAddress, topics, header.BlockNumber)
 		if err != nil {
 			log.Println("Error fetching matching logs:", err)
 			return err
 		}
 
 		for _, ethLog := range ethLogs {
-			entity, err := b.Converter.ToEntity(config.ContractAddresses, config.ContractAbi, ethLog)
+			entity, err := b.Converter.ToEntity(config.ContractAddress, config.ContractAbi, ethLog)
 			model, err := b.Converter.ToModel(entity)
 			if err != nil {
 				log.Println("Error converting logs:", err)

pkg/transformers/bite/transfromer_test.go

@@ -53,7 +53,7 @@ var _ = Describe("Bite Transformer", func() {
 		}
 
 		testConfig = shared.TransformerConfig{
-			ContractAddresses:   "0x12345",
+			ContractAddress:     "0x12345",
 			ContractAbi:         "test abi",
 			Topics:              []string{shared.BiteSignature},
 			StartingBlockNumber: blockNumber1,
@@ -85,7 +85,7 @@ var _ = Describe("Bite Transformer", func() {
 		Expect(err).NotTo(HaveOccurred())
 		Expect(fetcher.FetchedBlocks).To(Equal([]int64{blockNumber1, blockNumber2}))
 		Expect(fetcher.FetchedTopics).To(Equal(expectedTopics))
-		Expect(fetcher.FetchedContractAddress).To(Equal(bite.BiteConfig.ContractAddresses))
+		Expect(fetcher.FetchedContractAddress).To(Equal(bite.BiteConfig.ContractAddress))
 	})
 
 	It("returns an error if fetching logs fails", func() {
@@ -103,7 +103,7 @@ var _ = Describe("Bite Transformer", func() {
 		err := transformer.Execute()
 
 		Expect(err).NotTo(HaveOccurred())
-		Expect(converter.ConverterContract).To(Equal(bite.BiteConfig.ContractAddresses))
+		Expect(converter.ConverterContract).To(Equal(bite.BiteConfig.ContractAddress))
 		Expect(converter.ConverterAbi).To(Equal(bite.BiteConfig.ContractAbi))
 		Expect(converter.LogsToConvert).To(Equal([]types.Log{test_data.EthBiteLog}))
 	})

pkg/transformers/flip_kick/config.go

@@ -17,7 +17,7 @@ package flip_kick
 import "github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
 
 var FlipKickConfig = shared.TransformerConfig{
-	ContractAddresses:   shared.FlipperContractAddress,
+	ContractAddress:     shared.FlipperContractAddress,
 	ContractAbi:         shared.FlipperABI,
 	Topics:              []string{shared.FlipKickSignature},
 	StartingBlockNumber: 0,

pkg/transformers/flip_kick/transformer.go

@@ -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.ContractAddresses, topics, header.BlockNumber)
+		ethLogs, err := fkt.Fetcher.FetchLogs(config.ContractAddress, topics, header.BlockNumber)
 		if err != nil {
 			resultingErrors = append(resultingErrors, newTransformerError(err, header.BlockNumber, FetcherError))
 		}
 
 		for _, ethLog := range ethLogs {
-			entity, err := fkt.Converter.ToEntity(config.ContractAddresses, config.ContractAbi, ethLog)
+			entity, err := fkt.Converter.ToEntity(config.ContractAddress, config.ContractAbi, ethLog)
 			if err != nil {
 				resultingErrors = append(resultingErrors, newTransformerError(err, header.BlockNumber, LogToEntityError))
 			}

pkg/transformers/flip_kick/transformer_test.go

@@ -54,7 +54,7 @@ var _ = Describe("FlipKick Transformer", func() {
 
 		startingBlockNumber := rand.Int63()
 		testConfig = shared.TransformerConfig{
-			ContractAddresses:   "0x12345",
+			ContractAddress:     "0x12345",
 			ContractAbi:         "test abi",
 			Topics:              []string{shared.FlipKickSignature},
 			StartingBlockNumber: startingBlockNumber,
@@ -83,7 +83,7 @@ var _ = Describe("FlipKick Transformer", func() {
 		err := transformer.Execute()
 		Expect(err).NotTo(HaveOccurred())
 
-		Expect(fetcher.FetchedContractAddress).To(Equal(testConfig.ContractAddresses))
+		Expect(fetcher.FetchedContractAddress).To(Equal(testConfig.ContractAddress))
 		Expect(fetcher.FetchedTopics).To(Equal(expectedTopics))
 		Expect(fetcher.FetchedBlocks).To(Equal([]int64{blockNumber}))
 	})
@@ -100,7 +100,7 @@ var _ = Describe("FlipKick Transformer", func() {
 		err := transformer.Execute()
 		Expect(err).NotTo(HaveOccurred())
 
-		Expect(converter.ConverterContract).To(Equal(testConfig.ContractAddresses))
+		Expect(converter.ConverterContract).To(Equal(testConfig.ContractAddress))
 		Expect(converter.ConverterAbi).To(Equal(testConfig.ContractAbi))
 		Expect(converter.LogsToConvert).To(Equal(logs))
 		Expect(converter.EntitiesToConvert).To(Equal([]flip_kick.FlipKickEntity{test_data.FlipKickEntity}))

pkg/transformers/frob/config.go

@@ -17,7 +17,7 @@ package frob
 import "github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
 
 var FrobConfig = shared.TransformerConfig{
-	ContractAddresses:   "0xff3f2400f1600f3f493a9a92704a29b96795af1a", //this is a temporary address deployed locally
+	ContractAddress:     "0xff3f2400f1600f3f493a9a92704a29b96795af1a", //this is a temporary address deployed locally
 	ContractAbi:         FrobABI,
 	Topics:              []string{FrobEventSignature},
 	StartingBlockNumber: 0,

pkg/transformers/frob/transformer.go

@@ -52,12 +52,12 @@ func (transformer FrobTransformer) Execute() error {
 	}
 	for _, header := range missingHeaders {
 		topics := [][]common.Hash{{common.HexToHash(FrobEventSignature)}}
-		matchingLogs, err := transformer.Fetcher.FetchLogs(FrobConfig.ContractAddresses, topics, header.BlockNumber)
+		matchingLogs, err := transformer.Fetcher.FetchLogs(FrobConfig.ContractAddress, topics, header.BlockNumber)
 		if err != nil {
 			return err
 		}
 		for _, log := range matchingLogs {
-			entity, err := transformer.Converter.ToEntity(FrobConfig.ContractAddresses, FrobConfig.ContractAbi, log)
+			entity, err := transformer.Converter.ToEntity(FrobConfig.ContractAddress, FrobConfig.ContractAbi, log)
 			if err != nil {
 				return err
 			}

pkg/transformers/frob/transformer_test.go

@@ -74,7 +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.ContractAddresses))
+		Expect(fetcher.FetchedContractAddress).To(Equal(frob.FrobConfig.ContractAddress))
 		Expect(fetcher.FetchedTopics).To(Equal([][]common.Hash{{common.HexToHash(frob.FrobEventSignature)}}))
 	})
 
@@ -110,7 +110,7 @@ var _ = Describe("Frob transformer", func() {
 		err := transformer.Execute()
 
 		Expect(err).NotTo(HaveOccurred())
-		Expect(converter.PassedContractAddress).To(Equal(frob.FrobConfig.ContractAddresses))
+		Expect(converter.PassedContractAddress).To(Equal(frob.FrobConfig.ContractAddress))
 		Expect(converter.PassedContractABI).To(Equal(frob.FrobConfig.ContractAbi))
 		Expect(converter.PassedLog).To(Equal(test_data.EthFrobLog))
 		Expect(converter.PassedEntity).To(Equal(test_data.FrobEntity))

pkg/transformers/pit_file/config.go

@@ -0,0 +1,13 @@
+package pit_file
+
+import (
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
+)
+
+var PitFileConfig = shared.TransformerConfig{
+	ContractAddress:     "0xff3f2400f1600f3f493a9a92704a29b96795af1a", // temporary address from Ganache deploy
+	ContractAbi:         shared.PitABI,
+	Topics:              []string{shared.PitFileSignature},
+	StartingBlockNumber: 0,
+	EndingBlockNumber:   100,
+}

pkg/transformers/pit_file/converter.go

@@ -0,0 +1,32 @@
+package pit_file
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/ethereum/go-ethereum/core/types"
+	"math/big"
+)
+
+type Converter interface {
+	ToModel(contractAddress string, contractAbi string, ethLog types.Log) (PitFileModel, error)
+}
+
+type PitFileConverter struct {
+}
+
+func (PitFileConverter) ToModel(contractAddress string, contractAbi string, ethLog types.Log) (entity PitFileModel, err error) {
+	ilk := string(bytes.Trim(ethLog.Topics[2].Bytes(), "\x00"))
+	what := string(bytes.Trim(ethLog.Topics[3].Bytes(), "\x00"))
+	itemByteLength := 32
+	riskBytes := ethLog.Data[len(ethLog.Data)-itemByteLength:]
+	risk := big.NewInt(0).SetBytes(riskBytes).String()
+
+	raw, err := json.Marshal(ethLog)
+	return PitFileModel{
+		Ilk:              ilk,
+		What:             what,
+		Risk:             risk,
+		TransactionIndex: ethLog.TxIndex,
+		Raw:              raw,
+	}, err
+}

pkg/transformers/pit_file/converter_test.go

@@ -0,0 +1,20 @@
+package pit_file_test
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
+)
+
+var _ = Describe("Pit file converter", func() {
+	It("converts a log to an entity", func() {
+		converter := pit_file.PitFileConverter{}
+
+		model, err := converter.ToModel(test_data.PitAddress, shared.PitABI, test_data.EthPitFileLog)
+
+		Expect(err).NotTo(HaveOccurred())
+		Expect(model).To(Equal(test_data.PitFileModel))
+	})
+})

pkg/transformers/pit_file/model.go

@@ -0,0 +1,9 @@
+package pit_file
+
+type PitFileModel struct {
+	Ilk              string
+	What             string
+	Risk             string
+	TransactionIndex uint   `db:"tx_idx"`
+	Raw              []byte `db:"raw_log"`
+}

pkg/transformers/pit_file/pit_file_suite_test.go

@@ -0,0 +1,13 @@
+package pit_file_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestPitFile(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "PitFile Suite")
+}

pkg/transformers/pit_file/repository.go

@@ -0,0 +1,48 @@
+package pit_file
+
+import (
+	"github.com/vulcanize/vulcanizedb/pkg/core"
+	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
+)
+
+type Repository interface {
+	Create(headerID int64, transactionIndex uint, model PitFileModel) error
+	MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error)
+}
+
+type PitFileRepository struct {
+	db *postgres.DB
+}
+
+func NewPitFileRepository(db *postgres.DB) PitFileRepository {
+	return PitFileRepository{
+		db: db,
+	}
+}
+
+func (repository PitFileRepository) Create(headerID int64, transactionIndex uint, model PitFileModel) error {
+	_, err := repository.db.Exec(
+		`INSERT into maker.pit_file (header_id, ilk, what, risk, tx_idx, raw_log)
+        VALUES($1, $2, $3, $4::NUMERIC, $5, $6)`,
+		headerID, model.Ilk, model.What, model.Risk, model.TransactionIndex, model.Raw,
+	)
+	return err
+}
+
+func (repository PitFileRepository) 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.pit_file 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
+}

pkg/transformers/pit_file/repository_test.go

@@ -0,0 +1,130 @@
+package pit_file_test
+
+import (
+	"database/sql"
+	. "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/pit_file"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
+	"github.com/vulcanize/vulcanizedb/test_config"
+)
+
+var _ = Describe("Pit file repository", func() {
+	Describe("Create", func() {
+		It("adds a pit file event", func() {
+			db := test_config.NewTestDB(core.Node{})
+			test_config.CleanTestDB(db)
+			headerRepository := repositories.NewHeaderRepository(db)
+			headerID, err := headerRepository.CreateOrUpdateHeader(core.Header{})
+			Expect(err).NotTo(HaveOccurred())
+			pitFileRepository := pit_file.NewPitFileRepository(db)
+
+			err = pitFileRepository.Create(headerID, 123, test_data.PitFileModel)
+
+			Expect(err).NotTo(HaveOccurred())
+			var dbPitFile pit_file.PitFileModel
+			err = db.Get(&dbPitFile, `SELECT ilk, what, risk, tx_idx, raw_log FROM maker.pit_file WHERE header_id = $1`, headerID)
+			Expect(err).NotTo(HaveOccurred())
+			Expect(dbPitFile.Ilk).To(Equal(test_data.PitFileModel.Ilk))
+			Expect(dbPitFile.What).To(Equal(test_data.PitFileModel.What))
+			Expect(dbPitFile.Risk).To(Equal(test_data.PitFileModel.Risk))
+			Expect(dbPitFile.TransactionIndex).To(Equal(test_data.PitFileModel.TransactionIndex))
+			// The raw bytes scanned out of the DB are compressed (missing whitespace), such that they don't strictly equal the input bytes
+			Expect(dbPitFile.Raw).To(MatchJSON(test_data.PitFileModel.Raw))
+		})
+
+		It("does not duplicate pit file events", func() {
+			db := test_config.NewTestDB(core.Node{})
+			test_config.CleanTestDB(db)
+			headerRepository := repositories.NewHeaderRepository(db)
+			headerID, err := headerRepository.CreateOrUpdateHeader(core.Header{})
+			Expect(err).NotTo(HaveOccurred())
+			pitFileRepository := pit_file.NewPitFileRepository(db)
+			err = pitFileRepository.Create(headerID, 123, test_data.PitFileModel)
+			Expect(err).NotTo(HaveOccurred())
+
+			err = pitFileRepository.Create(headerID, 123, test_data.PitFileModel)
+
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("pq: duplicate key value violates unique constraint"))
+		})
+
+		It("removes pit file if corresponding header is deleted", func() {
+			db := test_config.NewTestDB(core.Node{})
+			test_config.CleanTestDB(db)
+			headerRepository := repositories.NewHeaderRepository(db)
+			headerID, err := headerRepository.CreateOrUpdateHeader(core.Header{})
+			Expect(err).NotTo(HaveOccurred())
+			pitFileRepository := pit_file.NewPitFileRepository(db)
+			err = pitFileRepository.Create(headerID, 123, test_data.PitFileModel)
+			Expect(err).NotTo(HaveOccurred())
+
+			_, err = db.Exec(`DELETE FROM headers WHERE id = $1`, headerID)
+
+			Expect(err).NotTo(HaveOccurred())
+			var dbPitFile pit_file.PitFileModel
+			err = db.Get(&dbPitFile, `SELECT ilk, what, risk, tx_idx, raw_log FROM maker.pit_file WHERE header_id = $1`, headerID)
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError(sql.ErrNoRows))
+		})
+	})
+
+	Describe("MissingHeaders", func() {
+		It("returns headers with no associated pit file event", func() {
+			db := test_config.NewTestDB(core.Node{})
+			test_config.CleanTestDB(db)
+			headerRepository := repositories.NewHeaderRepository(db)
+			startingBlockNumber := int64(1)
+			pitFileBlockNumber := int64(2)
+			endingBlockNumber := int64(3)
+			blockNumbers := []int64{startingBlockNumber, pitFileBlockNumber, 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())
+			}
+			pitFileRepository := pit_file.NewPitFileRepository(db)
+			err := pitFileRepository.Create(headerIDs[1], 123, test_data.PitFileModel)
+			Expect(err).NotTo(HaveOccurred())
+
+			headers, err := pitFileRepository.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() {
+			db := test_config.NewTestDB(core.Node{})
+			test_config.CleanTestDB(db)
+			blockNumbers := []int64{1, 2, 3}
+			headerRepository := repositories.NewHeaderRepository(db)
+			dbTwo := test_config.NewTestDB(core.Node{ID: "second"})
+			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())
+			}
+			pitFileRepository := pit_file.NewPitFileRepository(db)
+			pitFileRepositoryTwo := pit_file.NewPitFileRepository(dbTwo)
+			err := pitFileRepository.Create(headerIDs[0], 0, test_data.PitFileModel)
+			Expect(err).NotTo(HaveOccurred())
+
+			nodeOneMissingHeaders, err := pitFileRepository.MissingHeaders(blockNumbers[0], blockNumbers[len(blockNumbers)-1])
+			Expect(err).NotTo(HaveOccurred())
+			Expect(len(nodeOneMissingHeaders)).To(Equal(len(blockNumbers) - 1))
+
+			nodeTwoMissingHeaders, err := pitFileRepositoryTwo.MissingHeaders(blockNumbers[0], blockNumbers[len(blockNumbers)-1])
+			Expect(err).NotTo(HaveOccurred())
+			Expect(len(nodeTwoMissingHeaders)).To(Equal(len(blockNumbers)))
+		})
+	})
+})

pkg/transformers/pit_file/transformer.go

@@ -0,0 +1,56 @@
+package pit_file
+
+import (
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/vulcanize/vulcanizedb/pkg/core"
+	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
+)
+
+type PitFileTransformer struct {
+	Config     shared.TransformerConfig
+	Converter  Converter
+	Fetcher    shared.LogFetcher
+	Repository Repository
+}
+
+type PitFileTransformerInitializer struct {
+	Config shared.TransformerConfig
+}
+
+func (initializer PitFileTransformerInitializer) NewPitFileTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
+	converter := PitFileConverter{}
+	fetcher := shared.NewFetcher(blockChain)
+	repository := NewPitFileRepository(db)
+	return PitFileTransformer{
+		Config:     initializer.Config,
+		Converter:  converter,
+		Fetcher:    fetcher,
+		Repository: repository,
+	}
+}
+
+func (transformer PitFileTransformer) Execute() error {
+	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(shared.PitFileSignature)}}
+		matchingLogs, err := transformer.Fetcher.FetchLogs(PitFileConfig.ContractAddress, topics, header.BlockNumber)
+		if err != nil {
+			return err
+		}
+		for _, log := range matchingLogs {
+			model, err := transformer.Converter.ToModel(PitFileConfig.ContractAddress, shared.PitABI, log)
+			if err != nil {
+				return err
+			}
+			err = transformer.Repository.Create(header.Id, log.TxIndex, model)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}

pkg/transformers/pit_file/transformer_test.go

@@ -0,0 +1,162 @@
+package pit_file_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/core"
+	"github.com/vulcanize/vulcanizedb/pkg/fakes"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data/mocks"
+	pit_file_mocks "github.com/vulcanize/vulcanizedb/pkg/transformers/test_data/mocks/pit_file"
+)
+
+var _ = Describe("Pit file transformer", func() {
+	It("gets missing headers for block numbers specified in config", func() {
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		transformer := pit_file.PitFileTransformer{
+			Config:     pit_file.PitFileConfig,
+			Fetcher:    &mocks.MockLogFetcher{},
+			Converter:  &pit_file_mocks.MockPitFileConverter{},
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).NotTo(HaveOccurred())
+		Expect(repository.PassedStartingBlockNumber).To(Equal(pit_file.PitFileConfig.StartingBlockNumber))
+		Expect(repository.PassedEndingBlockNumber).To(Equal(pit_file.PitFileConfig.EndingBlockNumber))
+	})
+
+	It("returns error if repository returns error for missing headers", func() {
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		repository.SetMissingHeadersErr(fakes.FakeError)
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    &mocks.MockLogFetcher{},
+			Converter:  &pit_file_mocks.MockPitFileConverter{},
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).To(HaveOccurred())
+		Expect(err).To(MatchError(fakes.FakeError))
+	})
+
+	It("fetches logs for missing headers", func() {
+		fetcher := &mocks.MockLogFetcher{}
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		repository.SetMissingHeaders([]core.Header{{BlockNumber: 1}, {BlockNumber: 2}})
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    fetcher,
+			Converter:  &pit_file_mocks.MockPitFileConverter{},
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).NotTo(HaveOccurred())
+		Expect(fetcher.FetchedBlocks).To(Equal([]int64{1, 2}))
+		Expect(fetcher.FetchedContractAddress).To(Equal(pit_file.PitFileConfig.ContractAddress))
+		Expect(fetcher.FetchedTopics).To(Equal([][]common.Hash{{common.HexToHash(shared.PitFileSignature)}}))
+	})
+
+	It("returns error if fetcher returns error", func() {
+		fetcher := &mocks.MockLogFetcher{}
+		fetcher.SetFetcherError(fakes.FakeError)
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		repository.SetMissingHeaders([]core.Header{{BlockNumber: 1}})
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    fetcher,
+			Converter:  &pit_file_mocks.MockPitFileConverter{},
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).To(HaveOccurred())
+		Expect(err).To(MatchError(fakes.FakeError))
+	})
+
+	It("converts matching logs", func() {
+		converter := &pit_file_mocks.MockPitFileConverter{}
+		fetcher := &mocks.MockLogFetcher{}
+		fetcher.SetFetchedLogs([]types.Log{test_data.EthPitFileLog})
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		repository.SetMissingHeaders([]core.Header{{BlockNumber: 1}})
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    fetcher,
+			Converter:  converter,
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).NotTo(HaveOccurred())
+		Expect(converter.PassedContractAddress).To(Equal(pit_file.PitFileConfig.ContractAddress))
+		Expect(converter.PassedContractABI).To(Equal(pit_file.PitFileConfig.ContractAbi))
+		Expect(converter.PassedLog).To(Equal(test_data.EthPitFileLog))
+	})
+
+	It("returns error if converter returns error", func() {
+		converter := &pit_file_mocks.MockPitFileConverter{}
+		converter.SetConverterError(fakes.FakeError)
+		fetcher := &mocks.MockLogFetcher{}
+		fetcher.SetFetchedLogs([]types.Log{test_data.EthPitFileLog})
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		repository.SetMissingHeaders([]core.Header{{BlockNumber: 1}})
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    fetcher,
+			Converter:  converter,
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).To(HaveOccurred())
+		Expect(err).To(MatchError(fakes.FakeError))
+	})
+
+	It("persists pit file model", func() {
+		converter := &pit_file_mocks.MockPitFileConverter{}
+		fetcher := &mocks.MockLogFetcher{}
+		fetcher.SetFetchedLogs([]types.Log{test_data.EthPitFileLog})
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		fakeHeader := core.Header{BlockNumber: 1, Id: 2}
+		repository.SetMissingHeaders([]core.Header{fakeHeader})
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    fetcher,
+			Converter:  converter,
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).NotTo(HaveOccurred())
+		Expect(repository.PassedHeaderID).To(Equal(fakeHeader.Id))
+		Expect(repository.PassedTransactionIndex).To(Equal(test_data.EthPitFileLog.TxIndex))
+		Expect(repository.PassedModel).To(Equal(test_data.PitFileModel))
+	})
+
+	It("returns error if repository returns error for create", func() {
+		converter := &pit_file_mocks.MockPitFileConverter{}
+		fetcher := &mocks.MockLogFetcher{}
+		fetcher.SetFetchedLogs([]types.Log{test_data.EthPitFileLog})
+		repository := &pit_file_mocks.MockPitFileRepository{}
+		repository.SetMissingHeaders([]core.Header{{BlockNumber: 1, Id: 2}})
+		repository.SetCreateError(fakes.FakeError)
+		transformer := pit_file.PitFileTransformer{
+			Fetcher:    fetcher,
+			Converter:  converter,
+			Repository: repository,
+		}
+
+		err := transformer.Execute()
+
+		Expect(err).To(HaveOccurred())
+		Expect(err).To(MatchError(fakes.FakeError))
+	})
+})

pkg/transformers/shared/constants.go

@@ -15,9 +15,11 @@
 package shared
 
 var (
+	FlipperABI             = `[{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"bids","outputs":[{"name":"bid","type":"uint256"},{"name":"lot","type":"uint256"},{"name":"guy","type":"address"},{"name":"tic","type":"uint48"},{"name":"end","type":"uint48"},{"name":"urn","type":"bytes32"},{"name":"gal","type":"address"},{"name":"tab","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x4423c5f1"},{"constant":true,"inputs":[],"name":"ttl","outputs":[{"name":"","type":"uint48"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x4e8b1dd5"},{"constant":true,"inputs":[],"name":"gem","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x7bd2bea7"},{"constant":true,"inputs":[],"name":"beg","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x7d780d82"},{"constant":true,"inputs":[],"name":"tau","outputs":[{"name":"","type":"uint48"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xcfc4af55"},{"constant":true,"inputs":[],"name":"kicks","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xcfdd3302"},{"constant":true,"inputs":[],"name":"dai","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xf4b9fa75"},{"inputs":[{"name":"dai_","type":"address"},{"name":"gem_","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor","signature":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"id","type":"uint256"},{"indexed":false,"name":"lot","type":"uint256"},{"indexed":false,"name":"bid","type":"uint256"},{"indexed":false,"name":"gal","type":"address"},{"indexed":false,"name":"end","type":"uint48"},{"indexed":true,"name":"urn","type":"bytes32"},{"indexed":false,"name":"tab","type":"uint256"}],"name":"Kick","type":"event","signature":"0xbac86238bdba81d21995024470425ecb370078fa62b7271b90cf28cbd1e3e87e"},{"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","signature":"0x644843f351d3fba4abcd60109eaff9f54bac8fb8ccf0bab941009c21df21cf31"},{"constant":true,"inputs":[],"name":"era","outputs":[{"name":"","type":"uint48"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x143e55e0"},{"constant":false,"inputs":[{"name":"urn","type":"bytes32"},{"name":"gal","type":"address"},{"name":"tab","type":"uint256"},{"name":"lot","type":"uint256"},{"name":"bid","type":"uint256"}],"name":"kick","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xeae19d9e"},{"constant":false,"inputs":[{"name":"id","type":"uint256"}],"name":"tick","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xfc7b6aee"},{"constant":false,"inputs":[{"name":"id","type":"uint256"},{"name":"lot","type":"uint256"},{"name":"bid","type":"uint256"}],"name":"tend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x4b43ed12"},{"constant":false,"inputs":[{"name":"id","type":"uint256"},{"name":"lot","type":"uint256"},{"name":"bid","type":"uint256"}],"name":"dent","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x5ff3a382"},{"constant":false,"inputs":[{"name":"id","type":"uint256"}],"name":"deal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xc959c42b"}]`
 	FlipperContractAddress = "0x6b59c42097e2fff7cad96cb08ceefd601081ad9c" //this is a temporary address deployed locally
-	FlipperABI             = "[{\"constant\":true,\"inputs\":[],\"name\":\"era\",\"outputs\":[{\"name\":\"\",\"type\":\"uint48\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"bids\",\"outputs\":[{\"name\":\"bid\",\"type\":\"uint256\"},{\"name\":\"lot\",\"type\":\"uint256\"},{\"name\":\"guy\",\"type\":\"address\"},{\"name\":\"tic\",\"type\":\"uint48\"},{\"name\":\"end\",\"type\":\"uint48\"},{\"name\":\"urn\",\"type\":\"bytes32\"},{\"name\":\"gal\",\"type\":\"address\"},{\"name\":\"tab\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"},{\"name\":\"lot\",\"type\":\"uint256\"},{\"name\":\"bid\",\"type\":\"uint256\"}],\"name\":\"tend\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"ttl\",\"outputs\":[{\"name\":\"\",\"type\":\"uint48\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"},{\"name\":\"lot\",\"type\":\"uint256\"},{\"name\":\"bid\",\"type\":\"uint256\"}],\"name\":\"dent\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"gem\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"beg\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"}],\"name\":\"deal\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"tau\",\"outputs\":[{\"name\":\"\",\"type\":\"uint48\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"kicks\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"urn\",\"type\":\"bytes32\"},{\"name\":\"gal\",\"type\":\"address\"},{\"name\":\"tab\",\"type\":\"uint256\"},{\"name\":\"lot\",\"type\":\"uint256\"},{\"name\":\"bid\",\"type\":\"uint256\"}],\"name\":\"kick\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"dai\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"id\",\"type\":\"uint256\"}],\"name\":\"tick\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"name\":\"dai_\",\"type\":\"address\"},{\"name\":\"gem_\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"id\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"lot\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"bid\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"gal\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"end\",\"type\":\"uint48\"},{\"indexed\":true,\"name\":\"urn\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"tab\",\"type\":\"uint256\"}],\"name\":\"Kick\",\"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\"}]"
+	FlipKickSignature      = "0x8828a22eb6a18623309ad55592866c4b077989e9e8a25e1b85f9bf6f7282520f"
-	FlipKickSignature      = "0xbac86238bdba81d21995024470425ecb370078fa62b7271b90cf28cbd1e3e87e"
+	PitABI                 = `[{"constant":true,"inputs":[],"name":"vat","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"live","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"drip","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"Line","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"wards","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"ilks","outputs":[{"name":"spot","type":"uint256"},{"name":"line","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"vat_","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"ilk","type":"bytes32"},{"indexed":true,"name":"lad","type":"bytes32"},{"indexed":false,"name":"ink","type":"uint256"},{"indexed":false,"name":"art","type":"uint256"},{"indexed":false,"name":"dink","type":"int256"},{"indexed":false,"name":"dart","type":"int256"},{"indexed":false,"name":"iArt","type":"uint256"}],"name":"Frob","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"},{"constant":false,"inputs":[{"name":"guy","type":"address"}],"name":"rely","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"guy","type":"address"}],"name":"deny","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"ilk","type":"bytes32"},{"name":"what","type":"bytes32"},{"name":"data","type":"uint256"}],"name":"file","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"what","type":"bytes32"},{"name":"data","type":"uint256"}],"name":"file","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"what","type":"bytes32"},{"name":"data","type":"address"}],"name":"file","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"ilk","type":"bytes32"},{"name":"dink","type":"int256"},{"name":"dart","type":"int256"}],"name":"frob","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]`
-	BiteSignature          = "0x44a8f29dfcf27e5dd7a4db50b390f851bf3ecf2bf221243be3e853f586134455"
+	PitFileSignature       = "0x1a0b287e00000000000000000000000000000000000000000000000000000000"
 	TendFunctionSignature  = "0x4b43ed1200000000000000000000000000000000000000000000000000000000"
+	BiteSignature          = "0x44a8f29dfcf27e5dd7a4db50b390f851bf3ecf2bf221243be3e853f586134455"
 )

pkg/transformers/shared/transformer.go

@@ -28,7 +28,7 @@ type Transformer interface {
 type TransformerInitializer func(db *postgres.DB, blockChain core.BlockChain) Transformer
 
 type TransformerConfig struct {
-	ContractAddresses   string
+	ContractAddress     string
 	ContractAbi         string
 	Topics              []string
 	StartingBlockNumber int64

pkg/transformers/tend/config.go

@@ -17,7 +17,7 @@ package tend
 import "github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
 
 var TendConfig = shared.TransformerConfig{
-	ContractAddresses:   shared.FlipperContractAddress,
+	ContractAddress:     shared.FlipperContractAddress,
 	ContractAbi:         shared.FlipperABI,
 	Topics:              []string{shared.TendFunctionSignature},
 	StartingBlockNumber: 0,

pkg/transformers/tend/transformer.go

@@ -59,14 +59,14 @@ func (t TendTransformer) Execute() error {
 	}
 
 	for _, header := range missingHeaders {
-		ethLogs, err := t.Fetcher.FetchLogs(config.ContractAddresses, topics, header.BlockNumber)
+		ethLogs, err := t.Fetcher.FetchLogs(config.ContractAddress, topics, header.BlockNumber)
 		if err != nil {
 			log.Println("Error fetching matching logs:", err)
 			return err
 		}
 
 		for _, ethLog := range ethLogs {
-			model, err := t.Converter.Convert(config.ContractAddresses, config.ContractAbi, ethLog)
+			model, err := t.Converter.Convert(config.ContractAddress, config.ContractAbi, ethLog)
 			if err != nil {
 				log.Println("Error converting logs:", err)
 				return err

pkg/transformers/tend/transformer_test.go

@@ -93,7 +93,7 @@ var _ = Describe("Tend Transformer", func() {
 		err := transformer.Execute()
 
 		Expect(err).NotTo(HaveOccurred())
-		Expect(converter.ConverterContract).To(Equal(tend.TendConfig.ContractAddresses))
+		Expect(converter.ConverterContract).To(Equal(tend.TendConfig.ContractAddress))
 		Expect(converter.ConverterAbi).To(Equal(tend.TendConfig.ContractAbi))
 		Expect(converter.LogsToConvert).To(Equal([]types.Log{test_data.TendLogNote}))
 	})

pkg/transformers/test_data/mocks/pit_file/converter.go

@@ -0,0 +1,26 @@
+package pit_file
+
+import (
+	"github.com/ethereum/go-ethereum/core/types"
+
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
+)
+
+type MockPitFileConverter struct {
+	PassedContractAddress string
+	PassedContractABI     string
+	PassedLog             types.Log
+	converterError        error
+}
+
+func (converter *MockPitFileConverter) SetConverterError(err error) {
+	converter.converterError = err
+}
+
+func (converter *MockPitFileConverter) ToModel(contractAddress string, contractAbi string, ethLog types.Log) (pit_file.PitFileModel, error) {
+	converter.PassedContractAddress = contractAddress
+	converter.PassedContractABI = contractAbi
+	converter.PassedLog = ethLog
+	return test_data.PitFileModel, converter.converterError
+}

pkg/transformers/test_data/mocks/pit_file/repository.go

@@ -0,0 +1,42 @@
+package pit_file
+
+import (
+	"github.com/vulcanize/vulcanizedb/pkg/core"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
+)
+
+type MockPitFileRepository struct {
+	createError               error
+	PassedEndingBlockNumber   int64
+	PassedModel               pit_file.PitFileModel
+	PassedHeaderID            int64
+	PassedStartingBlockNumber int64
+	PassedTransactionIndex    uint
+	missingHeaders            []core.Header
+	missingHeadersErr         error
+}
+
+func (repository *MockPitFileRepository) SetCreateError(err error) {
+	repository.createError = err
+}
+
+func (repository *MockPitFileRepository) SetMissingHeadersErr(err error) {
+	repository.missingHeadersErr = err
+}
+
+func (repository *MockPitFileRepository) SetMissingHeaders(headers []core.Header) {
+	repository.missingHeaders = headers
+}
+
+func (repository *MockPitFileRepository) Create(headerID int64, transactionIndex uint, model pit_file.PitFileModel) error {
+	repository.PassedHeaderID = headerID
+	repository.PassedTransactionIndex = transactionIndex
+	repository.PassedModel = model
+	return repository.createError
+}
+
+func (repository *MockPitFileRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
+	repository.PassedStartingBlockNumber = startingBlockNumber
+	repository.PassedEndingBlockNumber = endingBlockNumber
+	return repository.missingHeaders, repository.missingHeadersErr
+}

pkg/transformers/test_data/pit_file.go

@@ -0,0 +1,41 @@
+package test_data
+
+import (
+	"encoding/json"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
+	"math/big"
+)
+
+var (
+	PitAddress = "0xff3f2400f1600f3f493a9a92704a29b96795af1a"
+)
+
+var EthPitFileLog = types.Log{
+	Address: common.HexToAddress(PitAddress),
+	Topics: []common.Hash{
+		common.HexToHash("0x1a0b287e00000000000000000000000000000000000000000000000000000000"),
+		common.HexToHash("0x0000000000000000000000000f243e26db94b5426032e6dfa6007802dea2a614"),
+		common.HexToHash("0x66616b6520696c6b000000000000000000000000000000000000000000000000"),
+		common.HexToHash("0x73706f7400000000000000000000000000000000000000000000000000000000"),
+	},
+	Data:        hexutil.MustDecode("0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000641a0b287e66616b6520696c6b00000000000000000000000000000000000000000000000073706f7400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007b"),
+	BlockNumber: 11,
+	TxHash:      common.HexToHash("0x1ba8125f60fa045c85b35df3983bee37db8627fbc32e3442a5cf17c85bb83f09"),
+	TxIndex:     111,
+	BlockHash:   common.HexToHash("0x6dc284247c524b22b10a75ef1c9d1709a509208d04c15fa2b675a293db637d21"),
+	Index:       0,
+	Removed:     false,
+}
+
+var raw, _ = json.Marshal(EthPitFileLog)
+
+var PitFileModel = pit_file.PitFileModel{
+	Ilk:              "fake ilk",
+	What:             "spot",
+	Risk:             big.NewInt(123).String(),
+	TransactionIndex: EthPitFileLog.TxIndex,
+	Raw:              raw,
+}

pkg/transformers/transformers.go

@@ -18,6 +18,7 @@ import (
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/bite"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/flip_kick"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/frob"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/pit_file"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/tend"
@@ -28,6 +29,8 @@ func TransformerInitializers() []shared.TransformerInitializer {
 	flipKickTransformerInitializer := flip_kick.FlipKickTransformerInitializer{Config: flipKickConfig}
 	frobConfig := frob.FrobConfig
 	frobTransformerInitializer := frob.FrobTransformerInitializer{Config: frobConfig}
+	pitFileConfig := pit_file.PitFileConfig
+	pitFileTransformerInitializer := pit_file.PitFileTransformerInitializer{Config: pitFileConfig}
 	priceFeedConfig := price_feeds.PriceFeedConfig
 	priceFeedTransformerInitializer := price_feeds.PriceFeedTransformerInitializer{Config: priceFeedConfig}
 	tendConfig := tend.TendConfig
@@ -38,6 +41,7 @@ func TransformerInitializers() []shared.TransformerInitializer {
 		biteTransformerInitializer.NewBiteTransformer,
 		flipKickTransformerInitializer.NewFlipKickTransformer,
 		frobTransformerInitializer.NewFrobTransformer,
+		pitFileTransformerInitializer.NewPitFileTransformer,
 		priceFeedTransformerInitializer.NewPriceFeedTransformer,
 		tendTransformerInitializer.NewTendTransformer,
 	}

test_config/test_config.go

@@ -77,6 +77,7 @@ 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.pit_file")
 	db.MustExec("DELETE FROM receipts")
 	db.MustExec("DELETE FROM transactions")
 	db.MustExec("DELETE FROM watched_contracts")