update pkg version

v0 blockstore compatible version

README.md

@@ -50,7 +50,7 @@ import (
     "github.com/ipfs/go-ipfs/core"
     "github.com/ipfs/go-ipfs/repo/fsrepo"
     "github.com/jmoiron/sqlx"
-    "github.com/vulcanize/ipfs-ethdb"
+    "github.com/vulcanize/ipfs-ethdb/v5"
 )
 
 func main() {

batch.go

@@ -17,12 +17,13 @@
 package ipfsethdb
 
 import (
+	"context"
 	"errors"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/hashicorp/golang-lru"
+	lru "github.com/hashicorp/golang-lru"
-	"github.com/ipfs/go-block-format"
+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-blockservice"
 )
 
@@ -30,6 +31,8 @@ var (
 	EvictionWarningErr = errors.New("warn: batch has exceeded capacity, data has been evicted")
 )
 
+var _ ethdb.Batch = &Batch{}
+
 // Batch is the type that satisfies the ethdb.Batch interface for IPFS Ethereum data using the ipfs blockservice interface
 // This is ipfs-backing-datastore agnostic but must operate through a configured ipfs node (and so is subject to lockfile contention with e.g. an ipfs daemon)
 // If blockservice block exchange is configured the blockservice can fetch data that are missing locally from IPFS peers
@@ -101,7 +104,7 @@ func (b *Batch) Write() error {
 		}
 		puts[i] = b
 	}
-	if err := b.blockService.AddBlocks(puts); err != nil {
+	if err := b.blockService.AddBlocks(context.Background(), puts); err != nil {
 		return err
 	}
 	for _, key := range b.deleteCache.Keys() {
@@ -110,7 +113,7 @@ func (b *Batch) Write() error {
 		if err != nil {
 			return err
 		}
-		if err := b.blockService.DeleteBlock(c); err != nil {
+		if err := b.blockService.DeleteBlock(context.Background(), c); err != nil {
 			return err
 		}
 	}

batch_test.go

@@ -25,7 +25,7 @@ import (
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 
-	ipfsethdb "github.com/vulcanize/ipfs-ethdb"
+	ipfsethdb "github.com/cerc-io/ipfs-ethdb/v5"
 )
 
 var (

database.go

@@ -20,7 +20,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"strconv"
 	"strings"
 
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -33,6 +32,8 @@ var (
 	errNotSupported             = errors.New("this operation is not supported")
 )
 
+var _ ethdb.Database = &Database{}
+
 // Database is the type that satisfies the ethdb.Database and ethdb.KeyValueStore interfaces for IPFS Ethereum data
 // This is ipfs-backing-datastore agnostic but must operate through a configured ipfs node (and so is subject to lockfile contention with e.g. an ipfs daemon)
 // If blockservice block exchange is configured the blockservice can fetch data that are missing locally from IPFS peers
@@ -54,6 +55,10 @@ func NewDatabase(bs blockservice.BlockService) ethdb.Database {
 	}
 }
 
+func (d *Database) ModifyAncients(f func(ethdb.AncientWriteOp) error) (int64, error) {
+	return 0, errNotSupported
+}
+
 // Has satisfies the ethdb.KeyValueReader interface
 // Has retrieves if a key is present in the key-value data store
 // This only operates on the local blockstore not through the exchange
@@ -63,7 +68,7 @@ func (d *Database) Has(key []byte) (bool, error) {
 	if err != nil {
 		return false, err
 	}
-	return d.blockService.Blockstore().Has(c)
+	return d.blockService.Blockstore().Has(context.Background(), c)
 }
 
 // Get satisfies the ethdb.KeyValueReader interface
@@ -89,7 +94,7 @@ func (d *Database) Put(key []byte, value []byte) error {
 	if err != nil {
 		return err
 	}
-	return d.blockService.AddBlock(b)
+	return d.blockService.AddBlock(context.Background(), b)
 }
 
 // Delete satisfies the ethdb.KeyValueWriter interface
@@ -100,7 +105,7 @@ func (d *Database) Delete(key []byte) error {
 	if err != nil {
 		return err
 	}
-	return d.blockService.DeleteBlock(c)
+	return d.blockService.DeleteBlock(context.Background(), c)
 }
 
 // DatabaseProperty enum type
@@ -129,9 +134,6 @@ func (d *Database) Stat(property string) (string, error) {
 		return "", err
 	}
 	switch prop {
-	case ExchangeOnline:
-		online := d.blockService.Exchange().IsOnline()
-		return strconv.FormatBool(online), nil
 	default:
 		return "", fmt.Errorf("unhandled database property")
 	}
@@ -154,6 +156,16 @@ func (d *Database) NewBatch() ethdb.Batch {
 	return b
 }
 
+// NewBatchWithSize satisfies the ethdb.Batcher interface.
+// NewBatchWithSize creates a write-only database batch with pre-allocated buffer.
+func (d *Database) NewBatchWithSize(size int) ethdb.Batch {
+	b, err := NewBatch(d.blockService, size)
+	if err != nil {
+		panic(err)
+	}
+	return b
+}
+
 // NewIterator satisfies the ethdb.Iteratee interface
 // it creates a binary-alphabetical iterator over a subset
 // of database content with a particular key prefix, starting at a particular
@@ -189,21 +201,41 @@ func (d *Database) Ancients() (uint64, error) {
 	return 0, errNotSupported
 }
 
+// Tail satisfies the ethdb.AncientReader interface.
+// Tail returns the number of first stored item in the freezer.
+func (d *Database) Tail() (uint64, error) {
+	return 0, errNotSupported
+}
+
 // AncientSize satisfies the ethdb.AncientReader interface
 // AncientSize returns the ancient size of the specified category
 func (d *Database) AncientSize(kind string) (uint64, error) {
 	return 0, errNotSupported
 }
 
-// AppendAncient satisfies the ethdb.AncientWriter interface
+// AncientRange retrieves all the items in a range, starting from the index 'start'.
-// AppendAncient injects all binary blobs belong to block at the end of the append-only immutable table files
+// It will return
-func (d *Database) AppendAncient(number uint64, hash, header, body, receipt, td []byte) error {
+//  - at most 'count' items,
+//  - at least 1 item (even if exceeding the maxBytes), but will otherwise
+//   return as many items as fit into maxBytes.
+func (d *Database) AncientRange(kind string, start, count, maxBytes uint64) ([][]byte, error) {
+	return nil, errNotSupported
+}
+
+// ReadAncients applies the provided AncientReader function
+func (d *Database) ReadAncients(fn func(ethdb.AncientReaderOp) error) (err error) {
 	return errNotSupported
 }
 
-// TruncateAncients satisfies the ethdb.AncientWriter interface
+// TruncateHead satisfies the ethdb.AncientWriter interface.
-// TruncateAncients discards all but the first n ancient data from the ancient store
+// TruncateHead discards all but the first n ancient data from the ancient store.
-func (d *Database) TruncateAncients(n uint64) error {
+func (d *Database) TruncateHead(n uint64) error {
+	return errNotSupported
+}
+
+// TruncateTail satisfies the ethdb.AncientWriter interface.
+// TruncateTail discards the first n ancient data from the ancient store.
+func (d *Database) TruncateTail(n uint64) error {
 	return errNotSupported
 }
 
@@ -212,3 +244,20 @@ func (d *Database) TruncateAncients(n uint64) error {
 func (d *Database) Sync() error {
 	return errNotSupported
 }
+
+// MigrateTable satisfies the ethdb.AncientWriter interface.
+// MigrateTable processes and migrates entries of a given table to a new format.
+func (d *Database) MigrateTable(string, func([]byte) ([]byte, error)) error {
+	return errNotSupported
+}
+
+// NewSnapshot satisfies the ethdb.Snapshotter interface.
+// NewSnapshot creates a database snapshot based on the current state.
+func (d *Database) NewSnapshot() (ethdb.Snapshot, error) {
+	return nil, errNotSupported
+}
+
+// AncientDatadir returns an error as we don't have a backing chain freezer.
+func (d *Database) AncientDatadir() (string, error) {
+	return "", errNotSupported
+}

database_test.go

@@ -26,7 +26,7 @@ import (
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 
-	ipfsethdb "github.com/vulcanize/ipfs-ethdb"
+	ipfsethdb "github.com/cerc-io/ipfs-ethdb/v5"
 )
 
 var (

go.mod

@@ -1,19 +1,71 @@
-module github.com/vulcanize/ipfs-ethdb
+module github.com/cerc-io/ipfs-ethdb/v5
 
-go 1.13
+go 1.19
 
 require (
-	github.com/ethereum/go-ethereum v1.9.15
+	github.com/ethereum/go-ethereum v1.11.5
-	github.com/hashicorp/golang-lru v0.5.4
+	github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d
-	github.com/ipfs/go-block-format v0.0.2
+	github.com/ipfs/go-block-format v0.0.3
-	github.com/ipfs/go-blockservice v0.1.3
+	github.com/ipfs/go-blockservice v0.4.0
-	github.com/ipfs/go-cid v0.0.5
+	github.com/ipfs/go-cid v0.2.0
-	github.com/ipfs/go-ipfs-blockstore v1.0.0
+	github.com/ipfs/go-ipfs-blockstore v1.2.0
-	github.com/ipfs/go-ipfs-ds-help v1.0.0
+	github.com/ipfs/go-ipfs-ds-help v1.1.0
-	github.com/ipfs/go-ipfs-exchange-interface v0.0.1
+	github.com/ipfs/go-ipfs-exchange-interface v0.2.0
-	github.com/jmoiron/sqlx v1.2.0
+	github.com/jmoiron/sqlx v1.3.5
-	github.com/lib/pq v1.0.0
+	github.com/lib/pq v1.10.6
-	github.com/multiformats/go-multihash v0.0.13
+	github.com/mailgun/groupcache/v2 v2.3.0
-	github.com/onsi/ginkgo v1.8.0
+	github.com/multiformats/go-multihash v0.1.0
-	github.com/onsi/gomega v1.5.0
+	github.com/onsi/ginkgo v1.16.5
+	github.com/onsi/gomega v1.19.0
+	github.com/sirupsen/logrus v1.6.0
+)
+
+require github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
+
+require (
+	github.com/btcsuite/btcd v0.22.0-beta // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/holiman/uint256 v1.2.0 // indirect
+	github.com/ipfs/bbloom v0.0.4 // indirect
+	github.com/ipfs/go-datastore v0.5.0 // indirect
+	github.com/ipfs/go-ipfs-util v0.0.2 // indirect
+	github.com/ipfs/go-ipld-format v0.4.0 // indirect
+	github.com/ipfs/go-log v1.0.5 // indirect
+	github.com/ipfs/go-log/v2 v2.3.0 // indirect
+	github.com/ipfs/go-metrics-interface v0.0.1 // indirect
+	github.com/ipfs/go-verifcid v0.0.1 // indirect
+	github.com/jbenet/goprocess v0.1.4 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	github.com/konsorten/go-windows-terminal-sequences v1.0.3 // indirect
+	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1 // indirect
+	github.com/minio/sha256-simd v1.0.0 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/multiformats/go-base32 v0.0.3 // indirect
+	github.com/multiformats/go-base36 v0.1.0 // indirect
+	github.com/multiformats/go-multibase v0.0.3 // indirect
+	github.com/multiformats/go-varint v0.0.6 // indirect
+	github.com/nxadm/tail v1.4.8 // indirect
+	github.com/opentracing/opentracing-go v1.2.0 // indirect
+	github.com/segmentio/fasthash v1.0.3 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	go.opentelemetry.io/otel v1.7.0 // indirect
+	go.opentelemetry.io/otel/trace v1.7.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.16.0 // indirect
+	golang.org/x/crypto v0.1.0 // indirect
+	golang.org/x/net v0.4.0 // indirect
+	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/text v0.7.0 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	lukechampine.com/blake3 v1.1.6 // indirect
 )

go.sum

@@ -1,377 +1,359 @@
-github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
-github.com/Azure/azure-pipeline-go v0.2.1/go.mod h1:UGSo8XybXnIGZ3epmeBw7Jdz+HiUVpqIlpz/HKHylF4=
-github.com/Azure/azure-pipeline-go v0.2.2/go.mod h1:4rQ/NZncSvGqNkkOsNpOU1tgoNuIlp9AfUH5G1tvCHc=
-github.com/Azure/azure-storage-blob-go v0.7.0/go.mod h1:f9YQKtsG1nMisotuTPpO0tjNuEjKRYAcJU8/ydDI++4=
-github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
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-github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
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-github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
+github.com/DataDog/zstd v1.5.2 h1:vUG4lAyuPCXO0TLbXvPv7EB7cNK1QV/luu55UHLrrn8=
-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
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-github.com/VictoriaMetrics/fastcache v1.5.7 h1:4y6y0G8PRzszQUYIQHHssv/jgPHAb5qQuuDNdCbyAgw=
-github.com/VictoriaMetrics/fastcache v1.5.7/go.mod h1:ptDBkNMQI4RtmVo8VS/XwRY6RoTu1dAWCbrk+6WsEM8=
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-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
-github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
+github.com/btcsuite/btcd v0.22.0-beta h1:LTDpDKUM5EeOFBPM8IXpinEcmZ6FWfNZbE3lfrfdnWo=
-github.com/aristanetworks/goarista v0.0.0-20170210015632-ea17b1a17847 h1:rtI0fD4oG/8eVokGVPYJEW1F88p1ZNgXiEIs9thEE4A=
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-github.com/aristanetworks/goarista v0.0.0-20170210015632-ea17b1a17847/go.mod h1:D/tb0zPVXnP7fmsLZjtdUhSsumbK/ij54UXjjVgMGxQ=
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-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
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-github.com/btcsuite/btcd v0.0.0-20190213025234-306aecffea32/go.mod h1:DrZx5ec/dmnfpw9KyYoQyYo7d0KEvTkk/5M/vbZjAr8=
-github.com/btcsuite/btcd v0.0.0-20190523000118-16327141da8c/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
-github.com/btcsuite/btcd v0.0.0-20190605094302-a0d1e3e36d50/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
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 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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-gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce/go.mod h1:5AcXVHNjg+BDxry382+8OKon8SEWiKktQR07RKPsv1c=
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+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+lukechampine.com/blake3 v1.1.6 h1:H3cROdztr7RCfoaTpGZFQsrqvweFLrqS73j7L7cmR5c=
+lukechampine.com/blake3 v1.1.6/go.mod h1:tkKEOtDkNtklkXtLNEOGNq5tcV90tJiA1vAA12R78LA=

iterator.go

@@ -23,6 +23,8 @@ import (
 	"github.com/ipfs/go-blockservice"
 )
 
+var _ ethdb.Iterator = &Iterator{}
+
 // Iterator is the type that satisfies the ethdb.Iterator interface for IPFS Ethereum data
 // Iteratee interface is used in Geth for various tests, trie/sync_bloom.go (for fast sync),
 // rawdb.InspectDatabase, and the new core/state/snapshot features.

mock_blockservice.go

@@ -20,11 +20,11 @@ import (
 	"context"
 	"errors"
 
-	"github.com/ipfs/go-block-format"
+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-blockservice"
 	"github.com/ipfs/go-cid"
-	"github.com/ipfs/go-ipfs-blockstore"
+	blockstore "github.com/ipfs/go-ipfs-blockstore"
-	"github.com/ipfs/go-ipfs-exchange-interface"
+	exchange "github.com/ipfs/go-ipfs-exchange-interface"
 )
 
 var (
@@ -52,27 +52,27 @@ func (mbs *MockBlockservice) Exchange() exchange.Interface {
 	panic("Exchange: implement me")
 }
 
-func (mbs *MockBlockservice) AddBlock(b blocks.Block) error {
+func (mbs *MockBlockservice) AddBlock(ctx context.Context, b blocks.Block) error {
-	return mbs.blockStore.Put(b)
+	return mbs.blockStore.Put(ctx, b)
 }
 
-func (mbs *MockBlockservice) AddBlocks(bs []blocks.Block) error {
+func (mbs *MockBlockservice) AddBlocks(ctx context.Context, bs []blocks.Block) error {
-	return mbs.blockStore.PutMany(bs)
+	return mbs.blockStore.PutMany(ctx, bs)
 }
 
-func (mbs *MockBlockservice) DeleteBlock(c cid.Cid) error {
+func (mbs *MockBlockservice) DeleteBlock(ctx context.Context, c cid.Cid) error {
-	return mbs.blockStore.DeleteBlock(c)
+	return mbs.blockStore.DeleteBlock(ctx, c)
 }
 
 func (mbs *MockBlockservice) GetBlock(ctx context.Context, c cid.Cid) (blocks.Block, error) {
-	return mbs.blockStore.Get(c)
+	return mbs.blockStore.Get(ctx, c)
 }
 
 func (mbs *MockBlockservice) GetBlocks(ctx context.Context, cs []cid.Cid) <-chan blocks.Block {
 	blockChan := make(chan blocks.Block)
 	go func() {
 		for _, c := range cs {
-			if b, err := mbs.blockStore.Get(c); err == nil {
+			if b, err := mbs.blockStore.Get(ctx, c); err == nil {
 				blockChan <- b
 			}
 		}
@@ -93,17 +93,17 @@ type MockBlockstore struct {
 	err    error
 }
 
-func (mbs *MockBlockstore) DeleteBlock(c cid.Cid) error {
+func (mbs *MockBlockstore) DeleteBlock(ctx context.Context, c cid.Cid) error {
 	delete(mbs.blocks, c.String())
 	return mbs.err
 }
 
-func (mbs *MockBlockstore) Has(c cid.Cid) (bool, error) {
+func (mbs *MockBlockstore) Has(ctx context.Context, c cid.Cid) (bool, error) {
 	_, ok := mbs.blocks[c.String()]
 	return ok, mbs.err
 }
 
-func (mbs *MockBlockstore) Get(c cid.Cid) (blocks.Block, error) {
+func (mbs *MockBlockstore) Get(ctx context.Context, c cid.Cid) (blocks.Block, error) {
 	obj, ok := mbs.blocks[c.String()]
 	if !ok {
 		return nil, blockNotFoundErr
@@ -111,7 +111,7 @@ func (mbs *MockBlockstore) Get(c cid.Cid) (blocks.Block, error) {
 	return obj, mbs.err
 }
 
-func (mbs *MockBlockstore) GetSize(c cid.Cid) (int, error) {
+func (mbs *MockBlockstore) GetSize(ctx context.Context, c cid.Cid) (int, error) {
 	obj, ok := mbs.blocks[c.String()]
 	if !ok {
 		return 0, blockNotFoundErr
@@ -119,12 +119,12 @@ func (mbs *MockBlockstore) GetSize(c cid.Cid) (int, error) {
 	return len(obj.RawData()), mbs.err
 }
 
-func (mbs *MockBlockstore) Put(b blocks.Block) error {
+func (mbs *MockBlockstore) Put(ctx context.Context, b blocks.Block) error {
 	mbs.blocks[b.Cid().String()] = b
 	return mbs.err
 }
 
-func (mbs *MockBlockstore) PutMany(bs []blocks.Block) error {
+func (mbs *MockBlockstore) PutMany(ctx context.Context, bs []blocks.Block) error {
 	for _, b := range bs {
 		mbs.blocks[b.Cid().String()] = b
 	}

postgres/doc.md

@@ -18,11 +18,11 @@ import (
     "github.com/ethereum/go-ethereum/core/state"
     "github.com/ethereum/go-ethereum/trie"
     "github.com/jmoiron/sqlx"
-    "github.com/vulcanize/ipfs-ethdb/postgres"
+    "github.com/vulcanize/ipfs-ethdb/v5/postgres"
 )
 
 func main() {
-    connectStr := "postgresql://localhost:5432/vulcanize_testing?sslmode=disable"
+    connectStr := "postgresql://vdbm:password@localhost:8077/cerc_testing?sslmode=disable"
     db, _ := sqlx.Connect("postgres", connectStr)
 
     kvs := pgipfsethdb.NewKeyValueStore(db)

postgres/shared/util.go

@@ -0,0 +1,41 @@
+// VulcanizeDB
+// Copyright © 2023 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package shared
+
+import "github.com/jmoiron/sqlx"
+
+/*
+	Hostname:     "localhost",
+	Port:         8077,
+	DatabaseName: "cerc_testing",
+	Username:     "vdbm",
+	Password:     "password",
+*/
+
+// TestDB connect to the testing database
+// it assumes the database has the IPFS ipld.blocks table present
+// DO NOT use a production db for the test db, as it will remove all contents of the ipld.blocks table
+func TestDB() (*sqlx.DB, error) {
+	connectStr := "postgresql://vdbm:password@localhost:8077/cerc_testing?sslmode=disable"
+	return sqlx.Connect("postgres", connectStr)
+}
+
+// ResetTestDB drops all rows in the test db ipld.blocks table
+func ResetTestDB(db *sqlx.DB) error {
+	_, err := db.Exec("TRUNCATE ipld.blocks CASCADE")
+	return err
+}

postgres/v0/batch.go

@@ -0,0 +1,117 @@
+// VulcanizeDB
+// Copyright © 2020 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb
+
+import (
+	"math/big"
+
+	"github.com/ipfs/go-cid"
+
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/jmoiron/sqlx"
+)
+
+var _ ethdb.Batch = &Batch{}
+
+// Batch is the type that satisfies the ethdb.Batch interface for PG-IPFS Ethereum data using a direct Postgres connection
+type Batch struct {
+	db        *sqlx.DB
+	tx        *sqlx.Tx
+	valueSize int
+
+	blockNumber *big.Int
+}
+
+// NewBatch returns a ethdb.Batch interface for PG-IPFS
+func NewBatch(db *sqlx.DB, tx *sqlx.Tx, blockNumber *big.Int) ethdb.Batch {
+	b := &Batch{
+		db:          db,
+		tx:          tx,
+		blockNumber: blockNumber,
+	}
+	if tx == nil {
+		b.Reset()
+	}
+	return b
+}
+
+// Put satisfies the ethdb.Batch interface
+// Put inserts the given value into the key-value data store
+// Key is expected to be a fully formulated cid key
+// TODO: note, now that we expected a cid we could route to the "cids" tables based on prefix instead of to ipld.blocks
+// but is it better to handle this routing here, or use a completely different interface since we already have to refactor
+// at levels above this package in order to pass in cids instead of raw keccak256 hashes
+func (b *Batch) Put(cidBytes []byte, value []byte) (err error) {
+	// cast and resolve strings from cid.Cast
+	// this will assert that we have a correctly formatted CID
+	// and will handle the different string encodings for v0 and v1 CIDs
+	// (note that this v0 vs v1 is different from the blockstore v0 vs v1)
+	c, err := cid.Cast(cidBytes)
+	if err != nil {
+		return err
+	}
+	if _, err = b.tx.Exec(putPgStr, c.String(), value, b.blockNumber.Uint64()); err != nil {
+		return err
+	}
+	b.valueSize += len(value)
+	return nil
+}
+
+// Delete satisfies the ethdb.Batch interface
+// Delete removes the key from the key-value data store
+func (b *Batch) Delete(cidBytes []byte) (err error) {
+	c, err := cid.Cast(cidBytes)
+	if err != nil {
+		return err
+	}
+	_, err = b.tx.Exec(deletePgStr, c.String())
+	return err
+}
+
+// ValueSize satisfies the ethdb.Batch interface
+// ValueSize retrieves the amount of data queued up for writing
+// The returned value is the total byte length of all data queued to write
+func (b *Batch) ValueSize() int {
+	return b.valueSize
+}
+
+// Write satisfies the ethdb.Batch interface
+// Write flushes any accumulated data to disk
+func (b *Batch) Write() error {
+	if b.tx == nil {
+		return nil
+	}
+	return b.tx.Commit()
+}
+
+// Replay satisfies the ethdb.Batch interface
+// Replay replays the batch contents
+func (b *Batch) Replay(w ethdb.KeyValueWriter) error {
+	return errNotSupported
+}
+
+// Reset satisfies the ethdb.Batch interface
+// Reset resets the batch for reuse
+// This should be called after every write
+func (b *Batch) Reset() {
+	var err error
+	b.tx, err = b.db.Beginx()
+	if err != nil {
+		panic(err)
+	}
+	b.valueSize = 0
+}

postgres/v0/batch_test.go

@@ -0,0 +1,138 @@
+// VulcanizeDB
+// Copyright © 2019 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb_test
+
+import (
+	"math/big"
+	"time"
+
+	"github.com/cerc-io/ipfs-ethdb/v5/postgres/shared"
+
+	"github.com/ipfs/go-cid"
+
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/rlp"
+	"github.com/mailgun/groupcache/v2"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v5/postgres/v0"
+)
+
+var (
+	batch         ethdb.Batch
+	testHeader2   = types.Header{Number: big.NewInt(2)}
+	testValue2, _ = rlp.EncodeToBytes(testHeader2)
+	testEthKey2   = testHeader2.Hash().Bytes()
+	testCID2, _   = pgipfsethdb.CIDFromKeccak256(testEthKey2, cid.EthBlock)
+)
+
+var _ = Describe("Batch", func() {
+	BeforeEach(func() {
+		db, err = shared.TestDB()
+		Expect(err).ToNot(HaveOccurred())
+
+		cacheConfig := pgipfsethdb.CacheConfig{
+			Name:           "db",
+			Size:           3000000, // 3MB
+			ExpiryDuration: time.Hour,
+		}
+
+		database = pgipfsethdb.NewDatabase(db, cacheConfig)
+
+		databaseWithBlock, ok := database.(*pgipfsethdb.Database)
+		Expect(ok).To(BeTrue())
+		(*databaseWithBlock).BlockNumber = testBlockNumber
+
+		batch = database.NewBatch()
+	})
+	AfterEach(func() {
+		groupcache.DeregisterGroup("db")
+		err = shared.ResetTestDB(db)
+		Expect(err).ToNot(HaveOccurred())
+	})
+
+	Describe("Put/Write", func() {
+		It("adds the key-value pair to the batch", func() {
+			_, err = database.Get(testCID.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+			_, err = database.Get(testCID2.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+
+			err = batch.Put(testCID.Bytes(), testValue)
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Put(testCID2.Bytes(), testValue2)
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Write()
+			Expect(err).ToNot(HaveOccurred())
+
+			val, err := database.Get(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(val).To(Equal(testValue))
+			val2, err := database.Get(testCID2.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(val2).To(Equal(testValue2))
+		})
+	})
+
+	Describe("Delete/Reset/Write", func() {
+		It("deletes the key-value pair in the batch", func() {
+			err = batch.Put(testCID.Bytes(), testValue)
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Put(testCID2.Bytes(), testValue2)
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Write()
+			Expect(err).ToNot(HaveOccurred())
+
+			batch.Reset()
+			err = batch.Delete(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Delete(testCID2.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Write()
+			Expect(err).ToNot(HaveOccurred())
+
+			_, err = database.Get(testCID.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+			_, err = database.Get(testCID2.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+		})
+	})
+
+	Describe("ValueSize/Reset", func() {
+		It("returns the size of data in the batch queued for write", func() {
+			err = batch.Put(testCID.Bytes(), testValue)
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Put(testCID2.Bytes(), testValue2)
+			Expect(err).ToNot(HaveOccurred())
+			err = batch.Write()
+			Expect(err).ToNot(HaveOccurred())
+
+			size := batch.ValueSize()
+			Expect(size).To(Equal(len(testValue) + len(testValue2)))
+
+			batch.Reset()
+			size = batch.ValueSize()
+			Expect(size).To(Equal(0))
+		})
+	})
+})

postgres/v0/database.go

@@ -0,0 +1,364 @@
+// VulcanizeDB
+// Copyright © 2020 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"math/big"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/ipfs/go-cid"
+
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/jmoiron/sqlx"
+	"github.com/mailgun/groupcache/v2"
+	log "github.com/sirupsen/logrus"
+)
+
+var errNotSupported = errors.New("this operation is not supported")
+
+var (
+	hasPgStr    = "SELECT exists(select 1 from ipld.blocks WHERE key = $1 LIMIT 1)"
+	getPgStr    = "SELECT data FROM ipld.blocks WHERE key = $1 LIMIT 1"
+	putPgStr    = "INSERT INTO ipld.blocks (key, data, block_number) VALUES ($1, $2, $3) ON CONFLICT DO NOTHING"
+	deletePgStr = "DELETE FROM ipld.blocks WHERE key = $1"
+	dbSizePgStr = "SELECT pg_database_size(current_database())"
+)
+
+var _ ethdb.Database = &Database{}
+
+// Database is the type that satisfies the ethdb.Database and ethdb.KeyValueStore interfaces for PG-IPFS Ethereum data using a direct Postgres connection
+type Database struct {
+	db    *sqlx.DB
+	cache *groupcache.Group
+
+	BlockNumber *big.Int
+}
+
+func (d *Database) ModifyAncients(f func(ethdb.AncientWriteOp) error) (int64, error) {
+	return 0, errNotSupported
+}
+
+type CacheConfig struct {
+	Name           string
+	Size           int
+	ExpiryDuration time.Duration
+}
+
+// NewKeyValueStore returns a ethdb.KeyValueStore interface for PG-IPFS
+func NewKeyValueStore(db *sqlx.DB, cacheConfig CacheConfig) ethdb.KeyValueStore {
+	database := Database{db: db}
+	database.InitCache(cacheConfig)
+
+	return &database
+}
+
+// NewDatabase returns a ethdb.Database interface for PG-IPFS
+func NewDatabase(db *sqlx.DB, cacheConfig CacheConfig) ethdb.Database {
+	database := Database{db: db}
+	database.InitCache(cacheConfig)
+
+	return &database
+}
+
+func (d *Database) InitCache(cacheConfig CacheConfig) {
+	d.cache = groupcache.NewGroup(cacheConfig.Name, int64(cacheConfig.Size), groupcache.GetterFunc(
+		func(_ context.Context, id string, dest groupcache.Sink) error {
+			val, err := d.dbGet(id)
+
+			if err != nil {
+				return err
+			}
+
+			// Set the value in the groupcache, with expiry
+			if err := dest.SetBytes(val, time.Now().Add(cacheConfig.ExpiryDuration)); err != nil {
+				return err
+			}
+
+			return nil
+		},
+	))
+}
+
+func (d *Database) GetCacheStats() groupcache.Stats {
+	return d.cache.Stats
+}
+
+// Has satisfies the ethdb.KeyValueReader interface
+// Has retrieves if a cid is present in the key-value data store
+func (d *Database) Has(cidBytes []byte) (bool, error) {
+	c, err := cid.Cast(cidBytes)
+	if err != nil {
+		return false, err
+	}
+	var exists bool
+	return exists, d.db.Get(&exists, hasPgStr, c.String())
+}
+
+// Get retrieves the given key if it's present in the key-value data store
+func (d *Database) dbGet(key string) ([]byte, error) {
+	var data []byte
+	err := d.db.Get(&data, getPgStr, key)
+	if err == sql.ErrNoRows {
+		log.Warn("Database miss for key", key)
+	}
+
+	return data, err
+}
+
+// Get satisfies the ethdb.KeyValueReader interface
+// Get retrieves the given cid if it's present in the key-value data store
+func (d *Database) Get(cidBytes []byte) ([]byte, error) {
+	c, err := cid.Cast(cidBytes)
+	if err != nil {
+		return nil, err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*500)
+	defer cancel()
+
+	var data []byte
+	return data, d.cache.Get(ctx, c.String(), groupcache.AllocatingByteSliceSink(&data))
+}
+
+// Put satisfies the ethdb.KeyValueWriter interface
+// Put inserts the given value into the key-value data store
+// Key is expected to be a fully formulated cis of value
+func (d *Database) Put(cidBytes []byte, value []byte) error {
+	c, err := cid.Cast(cidBytes)
+	if err != nil {
+		return err
+	}
+	_, err = d.db.Exec(putPgStr, c.String(), value, d.BlockNumber.Uint64())
+	return err
+}
+
+// Delete satisfies the ethdb.KeyValueWriter interface
+// Delete removes the cid from the key-value data store
+func (d *Database) Delete(cidBytes []byte) error {
+	c, err := cid.Cast(cidBytes)
+	if err != nil {
+		return err
+	}
+	cidString := c.String()
+
+	_, err = d.db.Exec(deletePgStr, cidString)
+	if err != nil {
+		return err
+	}
+
+	// Remove from cache.
+	ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*500)
+	defer cancel()
+	err = d.cache.Remove(ctx, cidString)
+
+	return err
+}
+
+// DatabaseProperty enum type
+type DatabaseProperty int
+
+const (
+	Unknown DatabaseProperty = iota
+	Size
+	Idle
+	InUse
+	MaxIdleClosed
+	MaxLifetimeClosed
+	MaxOpenConnections
+	OpenConnections
+	WaitCount
+	WaitDuration
+)
+
+// DatabasePropertyFromString helper function
+func DatabasePropertyFromString(property string) (DatabaseProperty, error) {
+	switch strings.ToLower(property) {
+	case "size":
+		return Size, nil
+	case "idle":
+		return Idle, nil
+	case "inuse":
+		return InUse, nil
+	case "maxidleclosed":
+		return MaxIdleClosed, nil
+	case "maxlifetimeclosed":
+		return MaxLifetimeClosed, nil
+	case "maxopenconnections":
+		return MaxOpenConnections, nil
+	case "openconnections":
+		return OpenConnections, nil
+	case "waitcount":
+		return WaitCount, nil
+	case "waitduration":
+		return WaitDuration, nil
+	default:
+		return Unknown, fmt.Errorf("unknown database property")
+	}
+}
+
+// Stat satisfies the ethdb.Stater interface
+// Stat returns a particular internal stat of the database
+func (d *Database) Stat(property string) (string, error) {
+	prop, err := DatabasePropertyFromString(property)
+	if err != nil {
+		return "", err
+	}
+	switch prop {
+	case Size:
+		var byteSize string
+		return byteSize, d.db.Get(&byteSize, dbSizePgStr)
+	case Idle:
+		return strconv.Itoa(d.db.Stats().Idle), nil
+	case InUse:
+		return strconv.Itoa(d.db.Stats().InUse), nil
+	case MaxIdleClosed:
+		return strconv.FormatInt(d.db.Stats().MaxIdleClosed, 10), nil
+	case MaxLifetimeClosed:
+		return strconv.FormatInt(d.db.Stats().MaxLifetimeClosed, 10), nil
+	case MaxOpenConnections:
+		return strconv.Itoa(d.db.Stats().MaxOpenConnections), nil
+	case OpenConnections:
+		return strconv.Itoa(d.db.Stats().OpenConnections), nil
+	case WaitCount:
+		return strconv.FormatInt(d.db.Stats().WaitCount, 10), nil
+	case WaitDuration:
+		return d.db.Stats().WaitDuration.String(), nil
+	default:
+		return "", fmt.Errorf("unhandled database property")
+	}
+}
+
+// Compact satisfies the ethdb.Compacter interface
+// Compact flattens the underlying data store for the given key range
+func (d *Database) Compact(start []byte, limit []byte) error {
+	return errNotSupported
+}
+
+// NewBatch satisfies the ethdb.Batcher interface
+// NewBatch creates a write-only database that buffers changes to its host db
+// until a final write is called
+func (d *Database) NewBatch() ethdb.Batch {
+	return NewBatch(d.db, nil, d.BlockNumber)
+}
+
+// NewBatchWithSize satisfies the ethdb.Batcher interface.
+// NewBatchWithSize creates a write-only database batch with pre-allocated buffer.
+func (d *Database) NewBatchWithSize(size int) ethdb.Batch {
+	return NewBatch(d.db, nil, d.BlockNumber)
+}
+
+// NewIterator satisfies the ethdb.Iteratee interface
+// it creates a binary-alphabetical iterator over a subset
+// of database content with a particular key prefix, starting at a particular
+// initial key (or after, if it does not exist).
+//
+// Note: This method assumes that the prefix is NOT part of the start, so there's
+// no need for the caller to prepend the prefix to the start
+func (d *Database) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
+	return NewIterator(start, prefix, d.db)
+}
+
+// Close satisfies the io.Closer interface
+// Close closes the db connection
+func (d *Database) Close() error {
+	return d.db.DB.Close()
+}
+
+// HasAncient satisfies the ethdb.AncientReader interface
+// HasAncient returns an indicator whether the specified data exists in the ancient store
+func (d *Database) HasAncient(kind string, number uint64) (bool, error) {
+	return false, errNotSupported
+}
+
+// Ancient satisfies the ethdb.AncientReader interface
+// Ancient retrieves an ancient binary blob from the append-only immutable files
+func (d *Database) Ancient(kind string, number uint64) ([]byte, error) {
+	return nil, errNotSupported
+}
+
+// Ancients satisfies the ethdb.AncientReader interface
+// Ancients returns the ancient item numbers in the ancient store
+func (d *Database) Ancients() (uint64, error) {
+	return 0, errNotSupported
+}
+
+// Tail satisfies the ethdb.AncientReader interface.
+// Tail returns the number of first stored item in the freezer.
+func (d *Database) Tail() (uint64, error) {
+	return 0, errNotSupported
+}
+
+// AncientSize satisfies the ethdb.AncientReader interface
+// AncientSize returns the ancient size of the specified category
+func (d *Database) AncientSize(kind string) (uint64, error) {
+	return 0, errNotSupported
+}
+
+// AncientRange retrieves all the items in a range, starting from the index 'start'.
+// It will return
+//  - at most 'count' items,
+//  - at least 1 item (even if exceeding the maxBytes), but will otherwise
+//   return as many items as fit into maxBytes.
+func (d *Database) AncientRange(kind string, start, count, maxBytes uint64) ([][]byte, error) {
+	return nil, errNotSupported
+}
+
+// ReadAncients applies the provided AncientReader function
+func (d *Database) ReadAncients(fn func(ethdb.AncientReaderOp) error) (err error) {
+	return errNotSupported
+}
+
+// TruncateHead satisfies the ethdb.AncientWriter interface.
+// TruncateHead discards all but the first n ancient data from the ancient store.
+func (d *Database) TruncateHead(n uint64) error {
+	return errNotSupported
+}
+
+// TruncateTail satisfies the ethdb.AncientWriter interface.
+// TruncateTail discards the first n ancient data from the ancient store.
+func (d *Database) TruncateTail(n uint64) error {
+	return errNotSupported
+}
+
+// Sync satisfies the ethdb.AncientWriter interface
+// Sync flushes all in-memory ancient store data to disk
+func (d *Database) Sync() error {
+	return errNotSupported
+}
+
+// MigrateTable satisfies the ethdb.AncientWriter interface.
+// MigrateTable processes and migrates entries of a given table to a new format.
+func (d *Database) MigrateTable(string, func([]byte) ([]byte, error)) error {
+	return errNotSupported
+}
+
+// NewSnapshot satisfies the ethdb.Snapshotter interface.
+// NewSnapshot creates a database snapshot based on the current state.
+func (d *Database) NewSnapshot() (ethdb.Snapshot, error) {
+	return nil, errNotSupported
+}
+
+// AncientDatadir returns an error as we don't have a backing chain freezer.
+func (d *Database) AncientDatadir() (string, error) {
+	return "", errNotSupported
+}

postgres/v0/database_test.go

@@ -0,0 +1,133 @@
+// VulcanizeDB
+// Copyright © 2019 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb_test
+
+import (
+	"math/big"
+	"time"
+
+	"github.com/cerc-io/ipfs-ethdb/v5/postgres/shared"
+
+	"github.com/ipfs/go-cid"
+
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/rlp"
+	"github.com/jmoiron/sqlx"
+	"github.com/mailgun/groupcache/v2"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v5/postgres/v0"
+)
+
+var (
+	database        ethdb.Database
+	db              *sqlx.DB
+	err             error
+	testBlockNumber = big.NewInt(1337)
+	testHeader      = types.Header{Number: testBlockNumber}
+	testValue, _    = rlp.EncodeToBytes(testHeader)
+	testEthKey      = testHeader.Hash().Bytes()
+	testCID, _      = pgipfsethdb.CIDFromKeccak256(testEthKey, cid.EthBlock)
+)
+
+var _ = Describe("Database", func() {
+	BeforeEach(func() {
+		db, err = shared.TestDB()
+		Expect(err).ToNot(HaveOccurred())
+
+		cacheConfig := pgipfsethdb.CacheConfig{
+			Name:           "db",
+			Size:           3000000, // 3MB
+			ExpiryDuration: time.Hour,
+		}
+
+		database = pgipfsethdb.NewDatabase(db, cacheConfig)
+
+		databaseWithBlock, ok := database.(*pgipfsethdb.Database)
+		Expect(ok).To(BeTrue())
+		(*databaseWithBlock).BlockNumber = testBlockNumber
+	})
+	AfterEach(func() {
+		groupcache.DeregisterGroup("db")
+		err = shared.ResetTestDB(db)
+		Expect(err).ToNot(HaveOccurred())
+		err = db.Close()
+		Expect(err).ToNot(HaveOccurred())
+	})
+
+	Describe("Has", func() {
+		It("returns false if a key-pair doesn't exist in the db", func() {
+			has, err := database.Has(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(has).ToNot(BeTrue())
+		})
+		It("returns true if a key-pair exists in the db", func() {
+			_, err = db.Exec("INSERT into ipld.blocks (key, data, block_number) VALUES ($1, $2, $3)", testCID.String(), testValue, testBlockNumber.Uint64())
+			Expect(err).ToNot(HaveOccurred())
+			has, err := database.Has(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(has).To(BeTrue())
+		})
+	})
+
+	Describe("Get", func() {
+		It("throws an err if the key-pair doesn't exist in the db", func() {
+			_, err = database.Get(testCID.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+		})
+		It("returns the value associated with the key, if the pair exists", func() {
+			_, err = db.Exec("INSERT into ipld.blocks (key, data, block_number) VALUES ($1, $2, $3)", testCID.String(), testValue, testBlockNumber.Uint64())
+			Expect(err).ToNot(HaveOccurred())
+			val, err := database.Get(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(val).To(Equal(testValue))
+		})
+	})
+
+	Describe("Put", func() {
+		It("persists the key-value pair in the database", func() {
+			_, err = database.Get(testCID.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+
+			err = database.Put(testCID.Bytes(), testValue)
+			Expect(err).ToNot(HaveOccurred())
+			val, err := database.Get(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(val).To(Equal(testValue))
+		})
+	})
+
+	Describe("Delete", func() {
+		It("removes the key-value pair from the database", func() {
+			err = database.Put(testCID.Bytes(), testValue)
+			Expect(err).ToNot(HaveOccurred())
+			val, err := database.Get(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			Expect(val).To(Equal(testValue))
+
+			err = database.Delete(testCID.Bytes())
+			Expect(err).ToNot(HaveOccurred())
+			_, err = database.Get(testCID.Bytes())
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
+		})
+	})
+})

postgres/v0/iterator.go

@@ -0,0 +1,91 @@
+// VulcanizeDB
+// Copyright © 2020 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb
+
+import (
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ipfs/go-cid"
+	"github.com/jmoiron/sqlx"
+)
+
+var _ ethdb.Iterator = &Iterator{}
+
+// Iterator is the type that satisfies the ethdb.Iterator interface for PG-IPFS Ethereum data using a direct Postgres connection
+// Iteratee interface is used in Geth for various tests, trie/sync_bloom.go (for fast sync),
+// rawdb.InspectDatabase, and the new core/state/snapshot features.
+// This should not be confused with trie.NodeIterator or state.NodeIteraor (which can be constructed
+// from the ethdb.KeyValueStoreand ethdb.Database interfaces)
+type Iterator struct {
+	db                 *sqlx.DB
+	currentKey, prefix []byte
+	err                error
+}
+
+// NewIterator returns an ethdb.Iterator interface for PG-IPFS
+func NewIterator(start, prefix []byte, db *sqlx.DB) ethdb.Iterator {
+	return &Iterator{
+		db:         db,
+		prefix:     prefix,
+		currentKey: start,
+	}
+}
+
+// Next satisfies the ethdb.Iterator interface
+// Next moves the iterator to the next key/value pair
+// It returns whether the iterator is exhausted
+func (i *Iterator) Next() bool {
+	// this is complicated by the ipfs db keys not being the keccak256 hashes
+	// go-ethereum usage of this method expects the iteration to occur over keccak256 keys
+	panic("implement me: Next")
+}
+
+// Error satisfies the ethdb.Iterator interface
+// Error returns any accumulated error
+// Exhausting all the key/value pairs is not considered to be an error
+func (i *Iterator) Error() error {
+	return i.err
+}
+
+// Key satisfies the ethdb.Iterator interface
+// Key returns the key of the current key/value pair, or nil if done
+// The caller should not modify the contents of the returned slice
+// and its contents may change on the next call to Next
+func (i *Iterator) Key() []byte {
+	return i.currentKey
+}
+
+// Value satisfies the ethdb.Iterator interface
+// Value returns the value of the current key/value pair, or nil if done
+// The caller should not modify the contents of the returned slice
+// and its contents may change on the next call to Next
+func (i *Iterator) Value() []byte {
+	c, err := cid.Cast(i.currentKey)
+	if err != nil {
+		i.err = err
+		return nil
+	}
+	var data []byte
+	i.err = i.db.Get(&data, getPgStr, c)
+	return data
+}
+
+// Release satisfies the ethdb.Iterator interface
+// Release releases associated resources
+// Release should always succeed and can be called multiple times without causing error
+func (i *Iterator) Release() {
+	i.db.Close()
+}

postgres/v0/util.go

@@ -0,0 +1,32 @@
+// VulcanizeDB
+// Copyright © 2019 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb
+
+import (
+	"github.com/ipfs/go-cid"
+	_ "github.com/lib/pq" //postgres driver
+	"github.com/multiformats/go-multihash"
+)
+
+// CIDFromKeccak256 converts keccak256 hash bytes into a v1 cid
+func CIDFromKeccak256(hash []byte, codecType uint64) (cid.Cid, error) {
+	mh, err := multihash.Encode(hash, multihash.KECCAK_256)
+	if err != nil {
+		return cid.Cid{}, err
+	}
+	return cid.NewCidV1(codecType, mh), nil
+}

postgres/v1/batch.go

@@ -17,22 +17,29 @@
 package pgipfsethdb
 
 import (
+	"math/big"
+
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/jmoiron/sqlx"
 )
 
+var _ ethdb.Batch = &Batch{}
+
 // Batch is the type that satisfies the ethdb.Batch interface for PG-IPFS Ethereum data using a direct Postgres connection
 type Batch struct {
 	db        *sqlx.DB
 	tx        *sqlx.Tx
 	valueSize int
+
+	blockNumber *big.Int
 }
 
 // NewBatch returns a ethdb.Batch interface for PG-IPFS
-func NewBatch(db *sqlx.DB, tx *sqlx.Tx) ethdb.Batch {
+func NewBatch(db *sqlx.DB, tx *sqlx.Tx, blockNumber *big.Int) ethdb.Batch {
 	b := &Batch{
 		db:          db,
 		tx:          tx,
+		blockNumber: blockNumber,
 	}
 	if tx == nil {
 		b.Reset()
@@ -48,7 +55,7 @@ func (b *Batch) Put(key []byte, value []byte) (err error) {
 	if err != nil {
 		return err
 	}
-	if _, err = b.tx.Exec(putPgStr, mhKey, value); err != nil {
+	if _, err = b.tx.Exec(putPgStr, mhKey, value, b.blockNumber.Uint64()); err != nil {
 		return err
 	}
 	b.valueSize += len(value)

postgres/v1/batch_test.go

@@ -18,14 +18,18 @@ package pgipfsethdb_test
 
 import (
 	"math/big"
+	"time"
+
+	"github.com/cerc-io/ipfs-ethdb/v5/postgres/shared"
 
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/rlp"
+	"github.com/mailgun/groupcache/v2"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+	pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v5/postgres/v1"
 )
 
 var (
@@ -37,13 +41,26 @@ var (
 
 var _ = Describe("Batch", func() {
 	BeforeEach(func() {
-		db, err = pgipfsethdb.TestDB()
+		db, err = shared.TestDB()
 		Expect(err).ToNot(HaveOccurred())
-		database = pgipfsethdb.NewDatabase(db)
+
+		cacheConfig := pgipfsethdb.CacheConfig{
+			Name:           "db",
+			Size:           3000000, // 3MB
+			ExpiryDuration: time.Hour,
+		}
+
+		database = pgipfsethdb.NewDatabase(db, cacheConfig)
+
+		databaseWithBlock, ok := database.(*pgipfsethdb.Database)
+		Expect(ok).To(BeTrue())
+		(*databaseWithBlock).BlockNumber = testBlockNumber
+
 		batch = database.NewBatch()
 	})
 	AfterEach(func() {
-		err = pgipfsethdb.ResetTestDB(db)
+		groupcache.DeregisterGroup("db")
+		err = shared.ResetTestDB(db)
 		Expect(err).ToNot(HaveOccurred())
 	})
 

postgres/v1/database.go

@@ -17,41 +17,88 @@
 package pgipfsethdb
 
 import (
+	"context"
+	"database/sql"
 	"errors"
 	"fmt"
+	"math/big"
+	"strconv"
 	"strings"
+	"time"
 
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/jmoiron/sqlx"
+	"github.com/mailgun/groupcache/v2"
+	log "github.com/sirupsen/logrus"
 )
 
 var errNotSupported = errors.New("this operation is not supported")
 
 var (
-	hasPgStr    = "SELECT exists(select 1 from public.blocks WHERE key = $1)"
+	hasPgStr    = "SELECT exists(select 1 from ipld.blocks WHERE key = $1 LIMIT 1)"
-	getPgStr    = "SELECT data FROM public.blocks WHERE key = $1"
+	getPgStr    = "SELECT data FROM ipld.blocks WHERE key = $1 LIMIT 1"
-	putPgStr    = "INSERT INTO public.blocks (key, data) VALUES ($1, $2) ON CONFLICT (key) DO NOTHING"
+	putPgStr    = "INSERT INTO ipld.blocks (key, data, block_number) VALUES ($1, $2, $3) ON CONFLICT DO NOTHING"
-	deletePgStr = "DELETE FROM public.blocks WHERE key = $1"
+	deletePgStr = "DELETE FROM ipld.blocks WHERE key = $1"
 	dbSizePgStr = "SELECT pg_database_size(current_database())"
 )
 
+var _ ethdb.Database = &Database{}
+
 // Database is the type that satisfies the ethdb.Database and ethdb.KeyValueStore interfaces for PG-IPFS Ethereum data using a direct Postgres connection
 type Database struct {
 	db    *sqlx.DB
+	cache *groupcache.Group
+
+	BlockNumber *big.Int
+}
+
+func (d *Database) ModifyAncients(f func(ethdb.AncientWriteOp) error) (int64, error) {
+	return 0, errNotSupported
+}
+
+type CacheConfig struct {
+	Name           string
+	Size           int
+	ExpiryDuration time.Duration
 }
 
 // NewKeyValueStore returns a ethdb.KeyValueStore interface for PG-IPFS
-func NewKeyValueStore(db *sqlx.DB) ethdb.KeyValueStore {
+func NewKeyValueStore(db *sqlx.DB, cacheConfig CacheConfig) ethdb.KeyValueStore {
-	return &Database{
+	database := Database{db: db}
-		db: db,
+	database.InitCache(cacheConfig)
-	}
+
+	return &database
 }
 
 // NewDatabase returns a ethdb.Database interface for PG-IPFS
-func NewDatabase(db *sqlx.DB) ethdb.Database {
+func NewDatabase(db *sqlx.DB, cacheConfig CacheConfig) ethdb.Database {
-	return &Database{
+	database := Database{db: db}
-		db: db,
+	database.InitCache(cacheConfig)
+
+	return &database
+}
+
+func (d *Database) InitCache(cacheConfig CacheConfig) {
+	d.cache = groupcache.NewGroup(cacheConfig.Name, int64(cacheConfig.Size), groupcache.GetterFunc(
+		func(_ context.Context, id string, dest groupcache.Sink) error {
+			val, err := d.dbGet(id)
+
+			if err != nil {
+				return err
 			}
+
+			// Set the value in the groupcache, with expiry
+			if err := dest.SetBytes(val, time.Now().Add(cacheConfig.ExpiryDuration)); err != nil {
+				return err
+			}
+
+			return nil
+		},
+	))
+}
+
+func (d *Database) GetCacheStats() groupcache.Stats {
+	return d.cache.Stats
 }
 
 // Has satisfies the ethdb.KeyValueReader interface
@@ -65,6 +112,17 @@ func (d *Database) Has(key []byte) (bool, error) {
 	return exists, d.db.Get(&exists, hasPgStr, mhKey)
 }
 
+// Get retrieves the given key if it's present in the key-value data store
+func (d *Database) dbGet(key string) ([]byte, error) {
+	var data []byte
+	err := d.db.Get(&data, getPgStr, key)
+	if err == sql.ErrNoRows {
+		log.Warn("Database miss for key", key)
+	}
+
+	return data, err
+}
+
 // Get satisfies the ethdb.KeyValueReader interface
 // Get retrieves the given key if it's present in the key-value data store
 func (d *Database) Get(key []byte) ([]byte, error) {
@@ -72,8 +130,12 @@ func (d *Database) Get(key []byte) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*500)
+	defer cancel()
+
 	var data []byte
-	return data, d.db.Get(&data, getPgStr, mhKey)
+	return data, d.cache.Get(ctx, mhKey, groupcache.AllocatingByteSliceSink(&data))
 }
 
 // Put satisfies the ethdb.KeyValueWriter interface
@@ -84,7 +146,7 @@ func (d *Database) Put(key []byte, value []byte) error {
 	if err != nil {
 		return err
 	}
-	_, err = d.db.Exec(putPgStr, mhKey, value)
+	_, err = d.db.Exec(putPgStr, mhKey, value, d.BlockNumber.Uint64())
 	return err
 }
 
@@ -95,7 +157,17 @@ func (d *Database) Delete(key []byte) error {
 	if err != nil {
 		return err
 	}
+
 	_, err = d.db.Exec(deletePgStr, mhKey)
+	if err != nil {
+		return err
+	}
+
+	// Remove from cache.
+	ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*500)
+	defer cancel()
+	err = d.cache.Remove(ctx, mhKey)
+
 	return err
 }
 
@@ -153,19 +225,19 @@ func (d *Database) Stat(property string) (string, error) {
 		var byteSize string
 		return byteSize, d.db.Get(&byteSize, dbSizePgStr)
 	case Idle:
-		return string(d.db.Stats().Idle), nil
+		return strconv.Itoa(d.db.Stats().Idle), nil
 	case InUse:
-		return string(d.db.Stats().InUse), nil
+		return strconv.Itoa(d.db.Stats().InUse), nil
 	case MaxIdleClosed:
-		return string(d.db.Stats().MaxIdleClosed), nil
+		return strconv.FormatInt(d.db.Stats().MaxIdleClosed, 10), nil
 	case MaxLifetimeClosed:
-		return string(d.db.Stats().MaxLifetimeClosed), nil
+		return strconv.FormatInt(d.db.Stats().MaxLifetimeClosed, 10), nil
 	case MaxOpenConnections:
-		return string(d.db.Stats().MaxOpenConnections), nil
+		return strconv.Itoa(d.db.Stats().MaxOpenConnections), nil
 	case OpenConnections:
-		return string(d.db.Stats().OpenConnections), nil
+		return strconv.Itoa(d.db.Stats().OpenConnections), nil
 	case WaitCount:
-		return string(d.db.Stats().WaitCount), nil
+		return strconv.FormatInt(d.db.Stats().WaitCount, 10), nil
 	case WaitDuration:
 		return d.db.Stats().WaitDuration.String(), nil
 	default:
@@ -183,7 +255,13 @@ func (d *Database) Compact(start []byte, limit []byte) error {
 // NewBatch creates a write-only database that buffers changes to its host db
 // until a final write is called
 func (d *Database) NewBatch() ethdb.Batch {
-	return NewBatch(d.db, nil)
+	return NewBatch(d.db, nil, d.BlockNumber)
+}
+
+// NewBatchWithSize satisfies the ethdb.Batcher interface.
+// NewBatchWithSize creates a write-only database batch with pre-allocated buffer.
+func (d *Database) NewBatchWithSize(size int) ethdb.Batch {
+	return NewBatch(d.db, nil, d.BlockNumber)
 }
 
 // NewIterator satisfies the ethdb.Iteratee interface
@@ -221,21 +299,41 @@ func (d *Database) Ancients() (uint64, error) {
 	return 0, errNotSupported
 }
 
+// Tail satisfies the ethdb.AncientReader interface.
+// Tail returns the number of first stored item in the freezer.
+func (d *Database) Tail() (uint64, error) {
+	return 0, errNotSupported
+}
+
 // AncientSize satisfies the ethdb.AncientReader interface
 // AncientSize returns the ancient size of the specified category
 func (d *Database) AncientSize(kind string) (uint64, error) {
 	return 0, errNotSupported
 }
 
-// AppendAncient satisfies the ethdb.AncientWriter interface
+// AncientRange retrieves all the items in a range, starting from the index 'start'.
-// AppendAncient injects all binary blobs belong to block at the end of the append-only immutable table files
+// It will return
-func (d *Database) AppendAncient(number uint64, hash, header, body, receipt, td []byte) error {
+//  - at most 'count' items,
+//  - at least 1 item (even if exceeding the maxBytes), but will otherwise
+//   return as many items as fit into maxBytes.
+func (d *Database) AncientRange(kind string, start, count, maxBytes uint64) ([][]byte, error) {
+	return nil, errNotSupported
+}
+
+// ReadAncients applies the provided AncientReader function
+func (d *Database) ReadAncients(fn func(ethdb.AncientReaderOp) error) (err error) {
 	return errNotSupported
 }
 
-// TruncateAncients satisfies the ethdb.AncientWriter interface
+// TruncateHead satisfies the ethdb.AncientWriter interface.
-// TruncateAncients discards all but the first n ancient data from the ancient store
+// TruncateHead discards all but the first n ancient data from the ancient store.
-func (d *Database) TruncateAncients(n uint64) error {
+func (d *Database) TruncateHead(n uint64) error {
+	return errNotSupported
+}
+
+// TruncateTail satisfies the ethdb.AncientWriter interface.
+// TruncateTail discards the first n ancient data from the ancient store.
+func (d *Database) TruncateTail(n uint64) error {
 	return errNotSupported
 }
 
@@ -244,3 +342,20 @@ func (d *Database) TruncateAncients(n uint64) error {
 func (d *Database) Sync() error {
 	return errNotSupported
 }
+
+// MigrateTable satisfies the ethdb.AncientWriter interface.
+// MigrateTable processes and migrates entries of a given table to a new format.
+func (d *Database) MigrateTable(string, func([]byte) ([]byte, error)) error {
+	return errNotSupported
+}
+
+// NewSnapshot satisfies the ethdb.Snapshotter interface.
+// NewSnapshot creates a database snapshot based on the current state.
+func (d *Database) NewSnapshot() (ethdb.Snapshot, error) {
+	return nil, errNotSupported
+}
+
+// AncientDatadir returns an error as we don't have a backing chain freezer.
+func (d *Database) AncientDatadir() (string, error) {
+	return "", errNotSupported
+}

postgres/v1/database_test.go

@@ -18,22 +18,27 @@ package pgipfsethdb_test
 
 import (
 	"math/big"
+	"time"
+
+	"github.com/cerc-io/ipfs-ethdb/v5/postgres/shared"
 
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/jmoiron/sqlx"
+	"github.com/mailgun/groupcache/v2"
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 
-	pgipfsethdb "github.com/vulcanize/ipfs-ethdb/postgres"
+	pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v5/postgres/v1"
 )
 
 var (
 	database        ethdb.Database
 	db              *sqlx.DB
 	err             error
-	testHeader   = types.Header{Number: big.NewInt(1337)}
+	testBlockNumber = big.NewInt(1337)
+	testHeader      = types.Header{Number: testBlockNumber}
 	testValue, _    = rlp.EncodeToBytes(testHeader)
 	testEthKey      = testHeader.Hash().Bytes()
 	testMhKey, _    = pgipfsethdb.MultihashKeyFromKeccak256(testEthKey)
@@ -41,12 +46,26 @@ var (
 
 var _ = Describe("Database", func() {
 	BeforeEach(func() {
-		db, err = pgipfsethdb.TestDB()
+		db, err = shared.TestDB()
 		Expect(err).ToNot(HaveOccurred())
-		database = pgipfsethdb.NewDatabase(db)
+
+		cacheConfig := pgipfsethdb.CacheConfig{
+			Name:           "db",
+			Size:           3000000, // 3MB
+			ExpiryDuration: time.Hour,
+		}
+
+		database = pgipfsethdb.NewDatabase(db, cacheConfig)
+
+		databaseWithBlock, ok := database.(*pgipfsethdb.Database)
+		Expect(ok).To(BeTrue())
+		(*databaseWithBlock).BlockNumber = testBlockNumber
 	})
 	AfterEach(func() {
-		err = pgipfsethdb.ResetTestDB(db)
+		groupcache.DeregisterGroup("db")
+		err = shared.ResetTestDB(db)
+		Expect(err).ToNot(HaveOccurred())
+		err = db.Close()
 		Expect(err).ToNot(HaveOccurred())
 	})
 
@@ -57,7 +76,7 @@ var _ = Describe("Database", func() {
 			Expect(has).ToNot(BeTrue())
 		})
 		It("returns true if a key-pair exists in the db", func() {
-			_, err = db.Exec("INSERT into public.blocks (key, data) VALUES ($1, $2)", testMhKey, testValue)
+			_, err = db.Exec("INSERT into ipld.blocks (key, data, block_number) VALUES ($1, $2, $3)", testMhKey, testValue, testBlockNumber.Uint64())
 			Expect(err).ToNot(HaveOccurred())
 			has, err := database.Has(testEthKey)
 			Expect(err).ToNot(HaveOccurred())
@@ -72,7 +91,7 @@ var _ = Describe("Database", func() {
 			Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
 		})
 		It("returns the value associated with the key, if the pair exists", func() {
-			_, err = db.Exec("INSERT into public.blocks (key, data) VALUES ($1, $2)", testMhKey, testValue)
+			_, err = db.Exec("INSERT into ipld.blocks (key, data, block_number) VALUES ($1, $2, $3)", testMhKey, testValue, testBlockNumber.Uint64())
 			Expect(err).ToNot(HaveOccurred())
 			val, err := database.Get(testEthKey)
 			Expect(err).ToNot(HaveOccurred())

postgres/v1/iterator.go

@@ -21,6 +21,8 @@ import (
 	"github.com/jmoiron/sqlx"
 )
 
+var _ ethdb.Iterator = &Iterator{}
+
 // Iterator is the type that satisfies the ethdb.Iterator interface for PG-IPFS Ethereum data using a direct Postgres connection
 // Iteratee interface is used in Geth for various tests, trie/sync_bloom.go (for fast sync),
 // rawdb.InspectDatabase, and the new core/state/snapshot features.

postgres/v1/postgres_suite_test.go

@@ -0,0 +1,29 @@
+// VulcanizeDB
+// Copyright © 2019 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package pgipfsethdb_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestPGIPFSETHDB(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "PG-IPFS ethdb test")
+}

postgres/v1/util.go

@@ -17,9 +17,8 @@
 package pgipfsethdb
 
 import (
-	"github.com/ipfs/go-ipfs-blockstore"
+	blockstore "github.com/ipfs/go-ipfs-blockstore"
-	"github.com/ipfs/go-ipfs-ds-help"
+	dshelp "github.com/ipfs/go-ipfs-ds-help"
-	"github.com/jmoiron/sqlx"
 	_ "github.com/lib/pq" //postgres driver
 	"github.com/multiformats/go-multihash"
 )
@@ -33,17 +32,3 @@ func MultihashKeyFromKeccak256(h []byte) (string, error) {
 	dbKey := dshelp.MultihashToDsKey(mh)
 	return blockstore.BlockPrefix.String() + dbKey.String(), nil
 }
-
-// TestDB connect to the testing database
-// it assumes the database has the IPFS public.blocks table present
-// DO NOT use a production db for the test db, as it will remove all contents of the public.blocks table
-func TestDB() (*sqlx.DB, error) {
-	connectStr := "postgresql://localhost:5432/vulcanize_testing?sslmode=disable"
-	return sqlx.Connect("postgres", connectStr)
-}
-
-// ResetTestDB drops all rows in the test db public.blocks table
-func ResetTestDB(db *sqlx.DB) error {
-	_, err := db.Exec("TRUNCATE public.blocks")
-	return err
-}

util.go

@@ -17,7 +17,7 @@
 package ipfsethdb
 
 import (
-	"github.com/ipfs/go-block-format"
+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
 	_ "github.com/lib/pq" //postgres driver
 	"github.com/multiformats/go-multihash"