README.md

@@ -66,15 +66,23 @@ The corresponding CLI flags can be found with the `./ipld-eth-server serve --hel
     ipcPath = "~/.vulcanize/vulcanize.ipc" # $SERVER_IPC_PATH
     wsPath = "127.0.0.1:8081" # $SERVER_WS_PATH
     httpPath = "127.0.0.1:8082" # $SERVER_HTTP_PATH
+    graphql = true # $SERVER_GRAPHQL
+    graphqlEndpoint = "" # $SERVER_GRAPHQL_ENDPOINT
 
 [ethereum]
     chainID = "1" # $ETH_CHAIN_ID
     defaultSender = "" # $ETH_DEFAULT_SENDER_ADDR
+    rpcGasCap = "1000000000000" # $ETH_RPC_GAS_CAP
+    httpPath = "127.0.0.1:8545" # $ETH_HTTP_PATH
+    nodeID = "arch1" # $ETH_NODE_ID
+    clientName = "Geth" # $ETH_CLIENT_NAME
+    genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3" # $ETH_GENESIS_BLOCK
+    networkID = "1" # $ETH_NETWORK_ID
 ```
 
-The `database` fields are for connecting to a Postgres database that has been/is being populated by [ipld-eth-indexer](https://github.com/vulcanize/ipld-eth-indexer).
+The `database` fields are for connecting to a Postgres database that has been/is being populated by [ipld-eth-indexer](https://github.com/vulcanize/ipld-eth-indexer)  
 The `server` fields set the paths for exposing the ipld-eth-server endpoints  
-The `ethereum` fields set the chainID and default sender address to use for EVM simulation
+The `ethereum` fields set the chainID and default sender address to use for EVM simulation, and can optionally be used to configure a remote eth node to forward cache misses to  
 
 
 ### Endpoints

cmd/serve.go

@@ -71,10 +71,17 @@ func serve() {
 	if err := startServers(server, serverConfig); err != nil {
 		logWithCommand.Fatal(err)
 	}
+	graphQL, err := startGraphQL(server)
+	if err != nil {
+		logWithCommand.Fatal(err)
+	}
 
 	shutdown := make(chan os.Signal)
 	signal.Notify(shutdown, os.Interrupt)
 	<-shutdown
+	if graphQL != nil {
+		graphQL.Stop()
+	}
 	server.Stop()
 	wg.Wait()
 }
@@ -92,29 +99,24 @@ func startServers(server s.Server, settings *s.Config) error {
 	}
 	logWithCommand.Info("starting up HTTP server")
 	_, _, err = srpc.StartHTTPEndpoint(settings.HTTPEndpoint, server.APIs(), []string{"eth"}, nil, []string{"*"}, rpc.HTTPTimeouts{})
-	if err != nil {
 	return err
 }
-	return startGraphQL(server)
-}
 
-func startGraphQL(server s.Server) error {
+func startGraphQL(server s.Server) (graphQLServer *graphql.Service, err error) {
 	viper.BindEnv("server.graphql", "SERVER_GRAPHQL")
 	if viper.GetBool("server.graphql") {
 		logWithCommand.Info("starting up GraphQL server")
 		viper.BindEnv("server.graphqlEndpoint", "SERVER_GRAPHQL_ENDPOINT")
 		endPoint := viper.GetString("server.graphqlEndpoint")
 		if endPoint != "" {
-			graphQLServer, err := graphql.New(server.Backend(), endPoint, nil, []string{"*"}, rpc.HTTPTimeouts{})
+			graphQLServer, err = graphql.New(server.Backend(), endPoint, nil, []string{"*"}, rpc.HTTPTimeouts{})
 			if err != nil {
-				return err
+				return
 			}
-			if err := graphQLServer.Start(nil); err != nil {
+			err = graphQLServer.Start(nil)
-				return err
 		}
 	}
-	}
+	return
-	return nil
 }
 
 func init() {

go.mod

@@ -4,7 +4,7 @@ go 1.13
 
 require (
 	github.com/ethereum/go-ethereum v1.9.11
-	github.com/graph-gophers/graphql-go v0.0.0-20201003130358-c5bdf3b1108e // indirect
+	github.com/graph-gophers/graphql-go v0.0.0-20201003130358-c5bdf3b1108e
 	github.com/ipfs/go-block-format v0.0.2
 	github.com/ipfs/go-cid v0.0.5
 	github.com/ipfs/go-ipfs-blockstore v1.0.0

pkg/graphql/graphiql.go

@@ -1,24 +1,18 @@
-// The MIT License (MIT)
+// VulcanizeDB
-//
+// Copyright © 2020 Vulcanize
-// Copyright (c) 2016 Muhammed Thanish
+
-//
+// This program is free software: you can redistribute it and/or modify
-// Permission is hereby granted, free of charge, to any person obtaining a copy
+// it under the terms of the GNU Affero General Public License as published by
-// of this software and associated documentation files (the "Software"), to deal
+// the Free Software Foundation, either version 3 of the License, or
-// in the Software without restriction, including without limitation the rights
+// (at your option) any later version.
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+
-// copies of the Software, and to permit persons to whom the Software is
+// This program is distributed in the hope that it will be useful,
-// furnished to do so, subject to the following conditions:
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
-//
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// The above copyright notice and this permission notice shall be included in all
+// GNU Affero General Public License for more details.
-// copies or substantial portions of the Software.
+
-//
+// You should have received a copy of the GNU Affero General Public License
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
 
 package graphql
 

pkg/graphql/graphql.go

@@ -1,18 +1,18 @@
-// Copyright 2019 The go-ethereum Authors
+// VulcanizeDB
-// This file is part of the go-ethereum library.
+// Copyright © 2020 Vulcanize
-//
+
-// The go-ethereum library is free software: you can redistribute it and/or modify
+// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
+// 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.
-//
+
-// The go-ethereum library is distributed in the hope that it will be useful,
+// 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 Lesser General Public License for more details.
+// GNU Affero General Public License for more details.
-//
+
-// You should have received a copy of the GNU Lesser General Public License
+// You should have received a copy of the GNU Affero General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 // Package graphql provides a GraphQL interface to Ethereum node data.
 package graphql

pkg/graphql/graphql_suite_test.go

@@ -0,0 +1,35 @@
+// 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 graphql_test
+
+import (
+	"io/ioutil"
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"github.com/sirupsen/logrus"
+)
+
+func TestGraphQL(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "graphql test suite")
+}
+
+var _ = BeforeSuite(func() {
+	logrus.SetOutput(ioutil.Discard)
+})

pkg/graphql/graphql_test.go

@@ -1,28 +1,31 @@
-// Copyright 2019 The go-ethereum Authors
+// VulcanizeDB
-// This file is part of the go-ethereum library.
+// Copyright © 2020 Vulcanize
-//
+
-// The go-ethereum library is free software: you can redistribute it and/or modify
+// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
+// 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.
-//
+
-// The go-ethereum library is distributed in the hope that it will be useful,
+// 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 Lesser General Public License for more details.
+// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package graphql
+// 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 graphql_test
 
 import (
-	"testing"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"github.com/vulcanize/ipld-eth-server/pkg/graphql"
 )
 
-func TestBuildSchema(t *testing.T) {
+var _ = Describe("GraphQL", func() {
-	// Make sure the schema can be parsed and matched up to the object model.
+	It("Builds the schema and creates a new handler", func() {
-	if _, err := newHandler(nil); err != nil {
+		_, err := graphql.NewHandler(nil)
-		t.Errorf("Could not construct GraphQL handler: %v", err)
+		Expect(err).ToNot(HaveOccurred())
-	}
+	})
-}
+})

pkg/graphql/schema.go

@@ -1,18 +1,18 @@
-// Copyright 2019 The go-ethereum Authors
+// VulcanizeDB
-// This file is part of the go-ethereum library.
+// Copyright © 2020 Vulcanize
-//
+
-// The go-ethereum library is free software: you can redistribute it and/or modify
+// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
+// 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.
-//
+
-// The go-ethereum library is distributed in the hope that it will be useful,
+// 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 Lesser General Public License for more details.
+// GNU Affero General Public License for more details.
-//
+
-// You should have received a copy of the GNU Lesser General Public License
+// You should have received a copy of the GNU Affero General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 package graphql
 
@@ -33,7 +33,6 @@ const schema string = `
 
     schema {
         query: Query
-        mutation: Mutation
     }
 
     # Account is an Ethereum account at a particular block.
@@ -206,9 +205,6 @@ const schema string = `
         account(address: Address!): Account!
         # Call executes a local call operation at the current block's state.
         call(data: CallData!): CallResult
-        # EstimateGas estimates the amount of gas that will be required for
-        # successful execution of a transaction at the current block's state.
-        estimateGas(data: CallData!): Long!
     }
 
     # CallData represents the data associated with a local contract call.
@@ -270,23 +266,9 @@ const schema string = `
         # Blocks returns all the blocks between two numbers, inclusive. If
         # to is not supplied, it defaults to the most recent known block.
         blocks(from: Long!, to: Long): [Block!]!
-        # Pending returns the current pending state.
-        pending: Pending!
         # Transaction returns a transaction specified by its hash.
         transaction(hash: Bytes32!): Transaction
         # Logs returns log entries matching the provided filter.
         logs(filter: FilterCriteria!): [Log!]!
-        # GasPrice returns the node's estimate of a gas price sufficient to
-        # ensure a transaction is mined in a timely fashion.
-        gasPrice: BigInt!
-        # ProtocolVersion returns the current wire protocol version number.
-        protocolVersion: Int!
-        # Syncing returns information on the current synchronisation state.
-        syncing: SyncState
-    }
-
-    type Mutation {
-        # SendRawTransaction sends an RLP-encoded transaction to the network.
-        sendRawTransaction(data: Bytes!): Bytes32!
     }
 `

pkg/graphql/service.go

@@ -1,18 +1,18 @@
-// Copyright 2019 The go-ethereum Authors
+// VulcanizeDB
-// This file is part of the go-ethereum library.
+// Copyright © 2020 Vulcanize
-//
+
-// The go-ethereum library is free software: you can redistribute it and/or modify
+// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
+// 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.
-//
+
-// The go-ethereum library is distributed in the hope that it will be useful,
+// 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 Lesser General Public License for more details.
+// GNU Affero General Public License for more details.
-//
+
-// You should have received a copy of the GNU Lesser General Public License
+// You should have received a copy of the GNU Affero General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 package graphql
 
@@ -21,11 +21,11 @@ import (
 	"net"
 	"net/http"
 
-	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p"
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/graph-gophers/graphql-go"
 	"github.com/graph-gophers/graphql-go/relay"
+	"github.com/sirupsen/logrus"
 
 	"github.com/vulcanize/ipld-eth-server/pkg/eth"
 )
@@ -62,7 +62,7 @@ func (s *Service) APIs() []rpc.API { return nil }
 // layer was also initialized to spawn any goroutines required by the service.
 func (s *Service) Start(server *p2p.Server) error {
 	var err error
-	s.handler, err = newHandler(s.backend)
+	s.handler, err = NewHandler(s.backend)
 	if err != nil {
 		return err
 	}
@@ -70,13 +70,13 @@ func (s *Service) Start(server *p2p.Server) error {
 		return err
 	}
 	go rpc.NewHTTPServer(s.cors, s.vhosts, s.timeouts, s.handler).Serve(s.listener)
-	log.Info("GraphQL endpoint opened", "url", fmt.Sprintf("http://%s", s.endpoint))
+	logrus.Debugf("graphQL endpoint opened for url %s", fmt.Sprintf("http://%s", s.endpoint))
 	return nil
 }
 
 // newHandler returns a new `http.Handler` that will answer GraphQL queries.
 // It additionally exports an interactive query browser on the / endpoint.
-func newHandler(backend *eth.Backend) (http.Handler, error) {
+func NewHandler(backend *eth.Backend) (http.Handler, error) {
 	q := Resolver{backend}
 
 	s, err := graphql.ParseSchema(schema, &q)
@@ -98,7 +98,7 @@ func (s *Service) Stop() error {
 	if s.listener != nil {
 		s.listener.Close()
 		s.listener = nil
-		log.Info("GraphQL endpoint closed", "url", fmt.Sprintf("http://%s", s.endpoint))
+		logrus.Debugf("graphQL endpoint closed for url %s", fmt.Sprintf("http://%s", s.endpoint))
 	}
 	return nil
 }