GraphQL master FF for review (#18445)

* Initial work on a graphql API

* Added receipts, and more transaction fields.

* Finish receipts, add logs

* Add transactionCount to block

* Add types  and .

* Update Block type to be compatible with ethql

* Rename nonce to transactionCount in Account, to be compatible with ethql

* Update transaction, receipt and log to match ethql

* Add  query operator, for a range of blocks

* Added ommerCount to Block

* Add transactionAt and ommerAt to Block

* Added sendRawTransaction mutation

* Add Call and EstimateGas to graphQL API

* Refactored to use hexutil.Bytes instead of HexBytes

* Replace BigNum with hexutil.Big

* Refactor call and estimateGas to use ethapi struct type

* Replace ethgraphql.Address with common.Address

* Replace ethgraphql.Hash with common.Hash

* Converted most quantities to Long instead of Int

* Add support for logs

* Fix bug in runFilter

* Restructured Transaction to work primarily with headers, so uncle data is reported properly

* Add gasPrice API

* Add protocolVersion API

* Add syncing API

* Moved schema into its own source file

* Move some single use args types into anonymous structs

* Add doc-comments

* Fixed backend fetching to use context

* Added (very) basic tests

* Add documentation to the graphql schema

* Fix reversion for formatting of big numbers

* Correct spelling error

* s/BigInt/Long/

* Update common/types.go

* Fixes in response to review

* Fix lint error

* Updated calls on private functions

* Fix typo in graphql.go

* Rollback ethapi breaking changes for graphql support
Co-Authored-By: Arachnid <arachnid@notdot.net>

3 files changed, 56 insertions, 0 deletions

diff --git a/cmd/geth/config.go b/cmd/geth/config.go
index f1e281196..62eeef701 100644
--- a/cmd/geth/config.go
+++ b/cmd/geth/config.go
@@ -30,6 +30,7 @@ import (
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/dashboard"
 	"github.com/ethereum/go-ethereum/eth"
+	"github.com/ethereum/go-ethereum/graphql"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/params"
 	whisper "github.com/ethereum/go-ethereum/whisper/whisperv6"
@@ -176,6 +177,13 @@ func makeFullNode(ctx *cli.Context) *node.Node {
 		utils.RegisterShhService(stack, &cfg.Shh)
 	}
 
+	// Configure GraphQL if required
+	if ctx.GlobalIsSet(utils.GraphQLEnabledFlag.Name) {
+		if err := graphql.RegisterGraphQLService(stack, cfg.Node.GraphQLEndpoint(), cfg.Node.GraphQLCors, cfg.Node.GraphQLVirtualHosts, cfg.Node.HTTPTimeouts); err != nil {
+			utils.Fatalf("Failed to register the Ethereum service: %v", err)
+		}
+	}
+
 	// Add the Ethereum Stats daemon if requested.
 	if cfg.Ethstats.URL != "" {
 		utils.RegisterEthStatsService(stack, cfg.Ethstats.URL)
diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 97033c692..fb5ec20eb 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -141,6 +141,11 @@ var (
 		utils.RPCEnabledFlag,
 		utils.RPCListenAddrFlag,
 		utils.RPCPortFlag,
+		utils.GraphQLEnabledFlag,
+		utils.GraphQLListenAddrFlag,
+		utils.GraphQLPortFlag,
+		utils.GraphQLCORSDomainFlag,
+		utils.GraphQLVirtualHostsFlag,
 		utils.RPCApiFlag,
 		utils.WSEnabledFlag,
 		utils.WSListenAddrFlag,
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 60e45d095..33650685c 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -435,6 +435,30 @@ var (
 		Usage: "HTTP-RPC server listening port",
 		Value: node.DefaultHTTPPort,
 	}
+	GraphQLEnabledFlag = cli.BoolFlag{
+		Name:  "graphql",
+		Usage: "Enable the GraphQL server",
+	}
+	GraphQLListenAddrFlag = cli.StringFlag{
+		Name:  "graphql.addr",
+		Usage: "GraphQL server listening interface",
+		Value: node.DefaultGraphQLHost,
+	}
+	GraphQLPortFlag = cli.IntFlag{
+		Name:  "graphql.port",
+		Usage: "GraphQL server listening port",
+		Value: node.DefaultGraphQLPort,
+	}
+	GraphQLCORSDomainFlag = cli.StringFlag{
+		Name:  "graphql.rpccorsdomain",
+		Usage: "Comma separated list of domains from which to accept cross origin requests (browser enforced)",
+		Value: "",
+	}
+	GraphQLVirtualHostsFlag = cli.StringFlag{
+		Name:  "graphql.rpcvhosts",
+		Usage: "Comma separated list of virtual hostnames from which to accept requests (server enforced). Accepts '*' wildcard.",
+		Value: strings.Join(node.DefaultConfig.HTTPVirtualHosts, ","),
+	}
 	RPCCORSDomainFlag = cli.StringFlag{
 		Name:  "rpccorsdomain",
 		Usage: "Comma separated list of domains from which to accept cross origin requests (browser enforced)",
@@ -796,6 +820,24 @@ func setHTTP(ctx *cli.Context, cfg *node.Config) {
 	}
 }
 
+// setGraphQL creates the GraphQL listener interface string from the set
+// command line flags, returning empty if the GraphQL endpoint is disabled.
+func setGraphQL(ctx *cli.Context, cfg *node.Config) {
+	if ctx.GlobalBool(GraphQLEnabledFlag.Name) && cfg.GraphQLHost == "" {
+		cfg.GraphQLHost = "127.0.0.1"
+		if ctx.GlobalIsSet(GraphQLListenAddrFlag.Name) {
+			cfg.GraphQLHost = ctx.GlobalString(GraphQLListenAddrFlag.Name)
+		}
+	}
+	cfg.GraphQLPort = ctx.GlobalInt(GraphQLPortFlag.Name)
+	if ctx.GlobalIsSet(GraphQLCORSDomainFlag.Name) {
+		cfg.GraphQLCors = splitAndTrim(ctx.GlobalString(GraphQLCORSDomainFlag.Name))
+	}
+	if ctx.GlobalIsSet(GraphQLVirtualHostsFlag.Name) {
+		cfg.GraphQLVirtualHosts = splitAndTrim(ctx.GlobalString(GraphQLVirtualHostsFlag.Name))
+	}
+}
+
 // setWS creates the WebSocket RPC listener interface string from the set
 // command line flags, returning empty if the HTTP endpoint is disabled.
 func setWS(ctx *cli.Context, cfg *node.Config) {
@@ -978,6 +1020,7 @@ func SetNodeConfig(ctx *cli.Context, cfg *node.Config) {
 	SetP2PConfig(ctx, &cfg.P2P)
 	setIPC(ctx, cfg)
 	setHTTP(ctx, cfg)
+	setGraphQL(ctx, cfg)
 	setWS(ctx, cfg)
 	setNodeUserIdent(ctx, cfg)