graphql service on top of rpc endpoints
This commit is contained in:
parent
4f4ab1dd4f
commit
a8dd77294a
1
go.mod
1
go.mod
@ -4,6 +4,7 @@ go 1.13
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require (
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require (
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github.com/ethereum/go-ethereum v1.9.11
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github.com/ethereum/go-ethereum v1.9.11
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github.com/graph-gophers/graphql-go v0.0.0-20201003130358-c5bdf3b1108e // indirect
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github.com/ipfs/go-block-format v0.0.2
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github.com/ipfs/go-block-format v0.0.2
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github.com/ipfs/go-cid v0.0.5
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github.com/ipfs/go-cid v0.0.5
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github.com/ipfs/go-ipfs-blockstore v1.0.0
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github.com/ipfs/go-ipfs-blockstore v1.0.0
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2
go.sum
2
go.sum
@ -224,6 +224,8 @@ github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/ad
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github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
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github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
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github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
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github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
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github.com/graph-gophers/graphql-go v0.0.0-20201003130358-c5bdf3b1108e h1:IpssFbpfPSx/3c7x601Npx+UOQ4tqd0Rk4sObCQ+zlQ=
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github.com/graph-gophers/graphql-go v0.0.0-20201003130358-c5bdf3b1108e/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
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github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
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github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
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github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
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github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
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github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
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github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
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120
pkg/graphql/graphiql.go
Normal file
120
pkg/graphql/graphiql.go
Normal file
@ -0,0 +1,120 @@
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// The MIT License (MIT)
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//
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// Copyright (c) 2016 Muhammed Thanish
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package graphql
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import (
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"bytes"
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"fmt"
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"net/http"
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)
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// GraphiQL is an in-browser IDE for exploring GraphiQL APIs.
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// This handler returns GraphiQL when requested.
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//
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// For more information, see https://github.com/graphql/graphiql.
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type GraphiQL struct{}
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func respond(w http.ResponseWriter, body []byte, code int) {
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Header().Set("X-Content-Type-Options", "nosniff")
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w.WriteHeader(code)
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_, _ = w.Write(body)
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}
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func errorJSON(msg string) []byte {
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buf := bytes.Buffer{}
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fmt.Fprintf(&buf, `{"error": "%s"}`, msg)
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return buf.Bytes()
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}
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func (h GraphiQL) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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if r.Method != "GET" {
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respond(w, errorJSON("only GET requests are supported"), http.StatusMethodNotAllowed)
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return
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}
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w.Header().Set("Content-Type", "text/html")
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w.Write(graphiql)
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}
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var graphiql = []byte(`
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<!DOCTYPE html>
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<html>
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<head>
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<link
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rel="icon"
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type="image/png"
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href="data:image/png;base64,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"
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|
/>
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|
<link
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rel="stylesheet"
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href="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.13.0/graphiql.css"
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integrity="sha384-Qua2xoKBxcHOg1ivsKWo98zSI5KD/UuBpzMIg8coBd4/jGYoxeozCYFI9fesatT0"
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|
crossorigin="anonymous"
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|
/>
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|
<script
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|
src="https://cdnjs.cloudflare.com/ajax/libs/fetch/3.0.0/fetch.min.js"
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|
integrity="sha384-5B8/4F9AQqp/HCHReGLSOWbyAOwnJsPrvx6C0+VPUr44Olzi99zYT1xbVh+ZanQJ"
|
||||||
|
crossorigin="anonymous"
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||||||
|
></script>
|
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|
<script
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|
src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.5/umd/react.production.min.js"
|
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|
integrity="sha384-dOCiLz3nZfHiJj//EWxjwSKSC6Z1IJtyIEK/b/xlHVNdVLXDYSesoxiZb94bbuGE"
|
||||||
|
crossorigin="anonymous"
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|
></script>
|
||||||
|
<script
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|
src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.5/umd/react-dom.production.min.js"
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|
integrity="sha384-QI+ql5f+khgo3mMdCktQ3E7wUKbIpuQo8S5rA/3i1jg2rMsloCNyiZclI7sFQUGN"
|
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|
crossorigin="anonymous"
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||||||
|
></script>
|
||||||
|
<script
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||||||
|
src="https://cdnjs.cloudflare.com/ajax/libs/graphiql/0.13.0/graphiql.min.js"
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|
integrity="sha384-roSmzNmO4zJK9X4lwggDi4/oVy+9V4nlS1+MN8Taj7tftJy1GvMWyAhTNXdC/fFR"
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||||||
|
crossorigin="anonymous"
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||||||
|
></script>
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|
</head>
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|
<body style="width: 100%; height: 100%; margin: 0; overflow: hidden;">
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|
<div id="graphiql" style="height: 100vh;">Loading...</div>
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|
<script>
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|
function fetchGQL(params) {
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|
return fetch("/graphql", {
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|
method: "post",
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|
body: JSON.stringify(params),
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|
credentials: "include",
|
||||||
|
}).then(function (resp) {
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|
return resp.text();
|
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|
}).then(function (body) {
|
||||||
|
try {
|
||||||
|
return JSON.parse(body);
|
||||||
|
} catch (error) {
|
||||||
|
return body;
|
||||||
|
}
|
||||||
|
});
|
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|
}
|
||||||
|
ReactDOM.render(
|
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|
React.createElement(GraphiQL, {fetcher: fetchGQL}),
|
||||||
|
document.getElementById("graphiql")
|
||||||
|
)
|
||||||
|
</script>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
`)
|
942
pkg/graphql/graphql.go
Normal file
942
pkg/graphql/graphql.go
Normal file
@ -0,0 +1,942 @@
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|
// Copyright 2019 The go-ethereum Authors
|
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|
// This file is part of the go-ethereum library.
|
||||||
|
//
|
||||||
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser 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,
|
||||||
|
// 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.
|
||||||
|
//
|
||||||
|
// 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 provides a GraphQL interface to Ethereum node data.
|
||||||
|
package graphql
|
||||||
|
|
||||||
|
import (
|
||||||
|
"context"
|
||||||
|
"errors"
|
||||||
|
"time"
|
||||||
|
|
||||||
|
"github.com/ethereum/go-ethereum/common"
|
||||||
|
"github.com/ethereum/go-ethereum/common/hexutil"
|
||||||
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
||||||
|
"github.com/ethereum/go-ethereum/core/state"
|
||||||
|
"github.com/ethereum/go-ethereum/core/types"
|
||||||
|
"github.com/ethereum/go-ethereum/eth/filters"
|
||||||
|
"github.com/ethereum/go-ethereum/rpc"
|
||||||
|
|
||||||
|
"github.com/vulcanize/ipld-eth-server/pkg/eth"
|
||||||
|
)
|
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|
|
||||||
|
var (
|
||||||
|
errBlockInvariant = errors.New("block objects must be instantiated with at least one of num or hash")
|
||||||
|
)
|
||||||
|
|
||||||
|
// Account represents an Ethereum account at a particular block.
|
||||||
|
type Account struct {
|
||||||
|
backend *eth.Backend
|
||||||
|
address common.Address
|
||||||
|
blockNrOrHash rpc.BlockNumberOrHash
|
||||||
|
}
|
||||||
|
|
||||||
|
// getState fetches the StateDB object for an account.
|
||||||
|
func (a *Account) getState(ctx context.Context) (*state.StateDB, error) {
|
||||||
|
state, _, err := a.backend.StateAndHeaderByNumberOrHash(ctx, a.blockNrOrHash)
|
||||||
|
return state, err
|
||||||
|
}
|
||||||
|
|
||||||
|
func (a *Account) Address(ctx context.Context) (common.Address, error) {
|
||||||
|
return a.address, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (a *Account) Balance(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
state, err := a.getState(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Big(*state.GetBalance(a.address)), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (a *Account) TransactionCount(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
state, err := a.getState(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
return hexutil.Uint64(state.GetNonce(a.address)), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (a *Account) Code(ctx context.Context) (hexutil.Bytes, error) {
|
||||||
|
state, err := a.getState(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Bytes{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Bytes(state.GetCode(a.address)), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (a *Account) Storage(ctx context.Context, args struct{ Slot common.Hash }) (common.Hash, error) {
|
||||||
|
state, err := a.getState(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
return state.GetState(a.address, args.Slot), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Log represents an individual log message. All arguments are mandatory.
|
||||||
|
type Log struct {
|
||||||
|
backend *eth.Backend
|
||||||
|
transaction *Transaction
|
||||||
|
log *types.Log
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *Log) Transaction(ctx context.Context) *Transaction {
|
||||||
|
return l.transaction
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *Log) Account(ctx context.Context, args BlockNumberArgs) *Account {
|
||||||
|
return &Account{
|
||||||
|
backend: l.backend,
|
||||||
|
address: l.log.Address,
|
||||||
|
blockNrOrHash: args.NumberOrLatest(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *Log) Index(ctx context.Context) int32 {
|
||||||
|
return int32(l.log.Index)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *Log) Topics(ctx context.Context) []common.Hash {
|
||||||
|
return l.log.Topics
|
||||||
|
}
|
||||||
|
|
||||||
|
func (l *Log) Data(ctx context.Context) hexutil.Bytes {
|
||||||
|
return hexutil.Bytes(l.log.Data)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Transaction represents an Ethereum transaction.
|
||||||
|
// backend and hash are mandatory; all others will be fetched when required.
|
||||||
|
type Transaction struct {
|
||||||
|
backend *eth.Backend
|
||||||
|
hash common.Hash
|
||||||
|
tx *types.Transaction
|
||||||
|
block *Block
|
||||||
|
index uint64
|
||||||
|
}
|
||||||
|
|
||||||
|
// resolve returns the internal transaction object, fetching it if needed.
|
||||||
|
func (t *Transaction) resolve(ctx context.Context) (*types.Transaction, error) {
|
||||||
|
if t.tx == nil {
|
||||||
|
tx, blockHash, _, index := rawdb.ReadTransaction(t.backend.ChainDb(), t.hash)
|
||||||
|
if tx != nil {
|
||||||
|
t.tx = tx
|
||||||
|
blockNrOrHash := rpc.BlockNumberOrHashWithHash(blockHash, false)
|
||||||
|
t.block = &Block{
|
||||||
|
backend: t.backend,
|
||||||
|
numberOrHash: &blockNrOrHash,
|
||||||
|
}
|
||||||
|
t.index = index
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return t.tx, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Hash(ctx context.Context) common.Hash {
|
||||||
|
return t.hash
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) InputData(ctx context.Context) (hexutil.Bytes, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return hexutil.Bytes{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Bytes(tx.Data()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Gas(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
return hexutil.Uint64(tx.Gas()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) GasPrice(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Big(*tx.GasPrice()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Value(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Big(*tx.Value()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Nonce(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
return hexutil.Uint64(tx.Nonce()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) To(ctx context.Context, args BlockNumberArgs) (*Account, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
to := tx.To()
|
||||||
|
if to == nil {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
return &Account{
|
||||||
|
backend: t.backend,
|
||||||
|
address: *to,
|
||||||
|
blockNrOrHash: args.NumberOrLatest(),
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) From(ctx context.Context, args BlockNumberArgs) (*Account, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
var signer types.Signer = types.HomesteadSigner{}
|
||||||
|
if tx.Protected() {
|
||||||
|
signer = types.NewEIP155Signer(tx.ChainId())
|
||||||
|
}
|
||||||
|
from, _ := types.Sender(signer, tx)
|
||||||
|
|
||||||
|
return &Account{
|
||||||
|
backend: t.backend,
|
||||||
|
address: from,
|
||||||
|
blockNrOrHash: args.NumberOrLatest(),
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Block(ctx context.Context) (*Block, error) {
|
||||||
|
if _, err := t.resolve(ctx); err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return t.block, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Index(ctx context.Context) (*int32, error) {
|
||||||
|
if _, err := t.resolve(ctx); err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
if t.block == nil {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
index := int32(t.index)
|
||||||
|
return &index, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// getReceipt returns the receipt associated with this transaction, if any.
|
||||||
|
func (t *Transaction) getReceipt(ctx context.Context) (*types.Receipt, error) {
|
||||||
|
if _, err := t.resolve(ctx); err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
if t.block == nil {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
receipts, err := t.block.resolveReceipts(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return receipts[t.index], nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Status(ctx context.Context) (*hexutil.Uint64, error) {
|
||||||
|
receipt, err := t.getReceipt(ctx)
|
||||||
|
if err != nil || receipt == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := hexutil.Uint64(receipt.Status)
|
||||||
|
return &ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) GasUsed(ctx context.Context) (*hexutil.Uint64, error) {
|
||||||
|
receipt, err := t.getReceipt(ctx)
|
||||||
|
if err != nil || receipt == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := hexutil.Uint64(receipt.GasUsed)
|
||||||
|
return &ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) CumulativeGasUsed(ctx context.Context) (*hexutil.Uint64, error) {
|
||||||
|
receipt, err := t.getReceipt(ctx)
|
||||||
|
if err != nil || receipt == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := hexutil.Uint64(receipt.CumulativeGasUsed)
|
||||||
|
return &ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) CreatedContract(ctx context.Context, args BlockNumberArgs) (*Account, error) {
|
||||||
|
receipt, err := t.getReceipt(ctx)
|
||||||
|
if err != nil || receipt == nil || receipt.ContractAddress == (common.Address{}) {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return &Account{
|
||||||
|
backend: t.backend,
|
||||||
|
address: receipt.ContractAddress,
|
||||||
|
blockNrOrHash: args.NumberOrLatest(),
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) Logs(ctx context.Context) (*[]*Log, error) {
|
||||||
|
receipt, err := t.getReceipt(ctx)
|
||||||
|
if err != nil || receipt == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := make([]*Log, 0, len(receipt.Logs))
|
||||||
|
for _, log := range receipt.Logs {
|
||||||
|
ret = append(ret, &Log{
|
||||||
|
backend: t.backend,
|
||||||
|
transaction: t,
|
||||||
|
log: log,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
return &ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) R(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
_, r, _ := tx.RawSignatureValues()
|
||||||
|
return hexutil.Big(*r), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) S(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
_, _, s := tx.RawSignatureValues()
|
||||||
|
return hexutil.Big(*s), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (t *Transaction) V(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
tx, err := t.resolve(ctx)
|
||||||
|
if err != nil || tx == nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
v, _, _ := tx.RawSignatureValues()
|
||||||
|
return hexutil.Big(*v), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
type BlockType int
|
||||||
|
|
||||||
|
// Block represents an Ethereum block.
|
||||||
|
// backend, and numberOrHash are mandatory. All other fields are lazily fetched
|
||||||
|
// when required.
|
||||||
|
type Block struct {
|
||||||
|
backend *eth.Backend
|
||||||
|
numberOrHash *rpc.BlockNumberOrHash
|
||||||
|
hash common.Hash
|
||||||
|
header *types.Header
|
||||||
|
block *types.Block
|
||||||
|
receipts []*types.Receipt
|
||||||
|
}
|
||||||
|
|
||||||
|
// resolve returns the internal Block object representing this block, fetching
|
||||||
|
// it if necessary.
|
||||||
|
func (b *Block) resolve(ctx context.Context) (*types.Block, error) {
|
||||||
|
if b.block != nil {
|
||||||
|
return b.block, nil
|
||||||
|
}
|
||||||
|
if b.numberOrHash == nil {
|
||||||
|
latest := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
|
||||||
|
b.numberOrHash = &latest
|
||||||
|
}
|
||||||
|
var err error
|
||||||
|
b.block, err = b.backend.BlockByNumberOrHash(ctx, *b.numberOrHash)
|
||||||
|
if b.block != nil && b.header == nil {
|
||||||
|
b.header = b.block.Header()
|
||||||
|
if hash, ok := b.numberOrHash.Hash(); ok {
|
||||||
|
b.hash = hash
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return b.block, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// resolveHeader returns the internal Header object for this block, fetching it
|
||||||
|
// if necessary. Call this function instead of `resolve` unless you need the
|
||||||
|
// additional data (transactions and uncles).
|
||||||
|
func (b *Block) resolveHeader(ctx context.Context) (*types.Header, error) {
|
||||||
|
if b.numberOrHash == nil && b.hash == (common.Hash{}) {
|
||||||
|
return nil, errBlockInvariant
|
||||||
|
}
|
||||||
|
var err error
|
||||||
|
if b.header == nil {
|
||||||
|
if b.hash != (common.Hash{}) {
|
||||||
|
b.header, err = b.backend.HeaderByHash(ctx, b.hash)
|
||||||
|
} else {
|
||||||
|
b.header, err = b.backend.HeaderByNumberOrHash(ctx, *b.numberOrHash)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return b.header, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// resolveReceipts returns the list of receipts for this block, fetching them
|
||||||
|
// if necessary.
|
||||||
|
func (b *Block) resolveReceipts(ctx context.Context) ([]*types.Receipt, error) {
|
||||||
|
if b.receipts == nil {
|
||||||
|
hash := b.hash
|
||||||
|
if hash == (common.Hash{}) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
hash = header.Hash()
|
||||||
|
}
|
||||||
|
receipts, err := b.backend.GetReceipts(ctx, hash)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
b.receipts = []*types.Receipt(receipts)
|
||||||
|
}
|
||||||
|
return b.receipts, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Number(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
|
||||||
|
return hexutil.Uint64(header.Number.Uint64()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Hash(ctx context.Context) (common.Hash, error) {
|
||||||
|
if b.hash == (common.Hash{}) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
b.hash = header.Hash()
|
||||||
|
}
|
||||||
|
return b.hash, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) GasLimit(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
return hexutil.Uint64(header.GasLimit), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) GasUsed(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
return hexutil.Uint64(header.GasUsed), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Parent(ctx context.Context) (*Block, error) {
|
||||||
|
// If the block header hasn't been fetched, and we'll need it, fetch it.
|
||||||
|
if b.numberOrHash == nil && b.header == nil {
|
||||||
|
if _, err := b.resolveHeader(ctx); err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if b.header != nil && b.header.Number.Uint64() > 0 {
|
||||||
|
num := rpc.BlockNumberOrHashWithNumber(rpc.BlockNumber(b.header.Number.Uint64() - 1))
|
||||||
|
return &Block{
|
||||||
|
backend: b.backend,
|
||||||
|
numberOrHash: &num,
|
||||||
|
hash: b.header.ParentHash,
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Difficulty(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Big(*header.Difficulty), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Timestamp(ctx context.Context) (hexutil.Uint64, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return 0, err
|
||||||
|
}
|
||||||
|
return hexutil.Uint64(header.Time), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Nonce(ctx context.Context) (hexutil.Bytes, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Bytes{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Bytes(header.Nonce[:]), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) MixHash(ctx context.Context) (common.Hash, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
return header.MixDigest, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) TransactionsRoot(ctx context.Context) (common.Hash, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
return header.TxHash, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) StateRoot(ctx context.Context) (common.Hash, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
return header.Root, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) ReceiptsRoot(ctx context.Context) (common.Hash, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
return header.ReceiptHash, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) OmmerHash(ctx context.Context) (common.Hash, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return common.Hash{}, err
|
||||||
|
}
|
||||||
|
return header.UncleHash, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) OmmerCount(ctx context.Context) (*int32, error) {
|
||||||
|
block, err := b.resolve(ctx)
|
||||||
|
if err != nil || block == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
count := int32(len(block.Uncles()))
|
||||||
|
return &count, err
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Ommers(ctx context.Context) (*[]*Block, error) {
|
||||||
|
block, err := b.resolve(ctx)
|
||||||
|
if err != nil || block == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := make([]*Block, 0, len(block.Uncles()))
|
||||||
|
for _, uncle := range block.Uncles() {
|
||||||
|
blockNumberOrHash := rpc.BlockNumberOrHashWithHash(uncle.Hash(), false)
|
||||||
|
ret = append(ret, &Block{
|
||||||
|
backend: b.backend,
|
||||||
|
numberOrHash: &blockNumberOrHash,
|
||||||
|
header: uncle,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
return &ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) ExtraData(ctx context.Context) (hexutil.Bytes, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Bytes{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Bytes(header.Extra), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) LogsBloom(ctx context.Context) (hexutil.Bytes, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Bytes{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Bytes(header.Bloom.Bytes()), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) TotalDifficulty(ctx context.Context) (hexutil.Big, error) {
|
||||||
|
h := b.hash
|
||||||
|
if h == (common.Hash{}) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
h = header.Hash()
|
||||||
|
}
|
||||||
|
td, err := b.backend.GetTd(h)
|
||||||
|
if err != nil {
|
||||||
|
return hexutil.Big{}, err
|
||||||
|
}
|
||||||
|
return hexutil.Big(*td), nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// BlockNumberArgs encapsulates arguments to accessors that specify a block number.
|
||||||
|
type BlockNumberArgs struct {
|
||||||
|
// TODO: Ideally we could use input unions to allow the query to specify the
|
||||||
|
// block parameter by hash, block number, or tag but input unions aren't part of the
|
||||||
|
// standard GraphQL schema SDL yet, see: https://github.com/graphql/graphql-spec/issues/488
|
||||||
|
Block *hexutil.Uint64
|
||||||
|
}
|
||||||
|
|
||||||
|
// NumberOr returns the provided block number argument, or the "current" block number or hash if none
|
||||||
|
// was provided.
|
||||||
|
func (a BlockNumberArgs) NumberOr(current rpc.BlockNumberOrHash) rpc.BlockNumberOrHash {
|
||||||
|
if a.Block != nil {
|
||||||
|
blockNr := rpc.BlockNumber(*a.Block)
|
||||||
|
return rpc.BlockNumberOrHashWithNumber(blockNr)
|
||||||
|
}
|
||||||
|
return current
|
||||||
|
}
|
||||||
|
|
||||||
|
// NumberOrLatest returns the provided block number argument, or the "latest" block number if none
|
||||||
|
// was provided.
|
||||||
|
func (a BlockNumberArgs) NumberOrLatest() rpc.BlockNumberOrHash {
|
||||||
|
return a.NumberOr(rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber))
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Miner(ctx context.Context, args BlockNumberArgs) (*Account, error) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return &Account{
|
||||||
|
backend: b.backend,
|
||||||
|
address: header.Coinbase,
|
||||||
|
blockNrOrHash: args.NumberOrLatest(),
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) TransactionCount(ctx context.Context) (*int32, error) {
|
||||||
|
block, err := b.resolve(ctx)
|
||||||
|
if err != nil || block == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
count := int32(len(block.Transactions()))
|
||||||
|
return &count, err
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Transactions(ctx context.Context) (*[]*Transaction, error) {
|
||||||
|
block, err := b.resolve(ctx)
|
||||||
|
if err != nil || block == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := make([]*Transaction, 0, len(block.Transactions()))
|
||||||
|
for i, tx := range block.Transactions() {
|
||||||
|
ret = append(ret, &Transaction{
|
||||||
|
backend: b.backend,
|
||||||
|
hash: tx.Hash(),
|
||||||
|
tx: tx,
|
||||||
|
block: b,
|
||||||
|
index: uint64(i),
|
||||||
|
})
|
||||||
|
}
|
||||||
|
return &ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) TransactionAt(ctx context.Context, args struct{ Index int32 }) (*Transaction, error) {
|
||||||
|
block, err := b.resolve(ctx)
|
||||||
|
if err != nil || block == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
txs := block.Transactions()
|
||||||
|
if args.Index < 0 || int(args.Index) >= len(txs) {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
tx := txs[args.Index]
|
||||||
|
return &Transaction{
|
||||||
|
backend: b.backend,
|
||||||
|
hash: tx.Hash(),
|
||||||
|
tx: tx,
|
||||||
|
block: b,
|
||||||
|
index: uint64(args.Index),
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) OmmerAt(ctx context.Context, args struct{ Index int32 }) (*Block, error) {
|
||||||
|
block, err := b.resolve(ctx)
|
||||||
|
if err != nil || block == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
uncles := block.Uncles()
|
||||||
|
if args.Index < 0 || int(args.Index) >= len(uncles) {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
uncle := uncles[args.Index]
|
||||||
|
blockNumberOrHash := rpc.BlockNumberOrHashWithHash(uncle.Hash(), false)
|
||||||
|
return &Block{
|
||||||
|
backend: b.backend,
|
||||||
|
numberOrHash: &blockNumberOrHash,
|
||||||
|
header: uncle,
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// BlockFilterCriteria encapsulates criteria passed to a `logs` accessor inside
|
||||||
|
// a block.
|
||||||
|
type BlockFilterCriteria struct {
|
||||||
|
Addresses *[]common.Address // restricts matches to events created by specific contracts
|
||||||
|
|
||||||
|
// The Topic list restricts matches to particular event topics. Each event has a list
|
||||||
|
// of topics. Topics matches a prefix of that list. An empty element slice matches any
|
||||||
|
// topic. Non-empty elements represent an alternative that matches any of the
|
||||||
|
// contained topics.
|
||||||
|
//
|
||||||
|
// Examples:
|
||||||
|
// {} or nil matches any topic list
|
||||||
|
// {{A}} matches topic A in first position
|
||||||
|
// {{}, {B}} matches any topic in first position, B in second position
|
||||||
|
// {{A}, {B}} matches topic A in first position, B in second position
|
||||||
|
// {{A, B}}, {C, D}} matches topic (A OR B) in first position, (C OR D) in second position
|
||||||
|
Topics *[][]common.Hash
|
||||||
|
}
|
||||||
|
|
||||||
|
// runFilter accepts a filter and executes it, returning all its results as
|
||||||
|
// `Log` objects.
|
||||||
|
func runFilter(ctx context.Context, be *eth.Backend, filter *filters.Filter) ([]*Log, error) {
|
||||||
|
logs, err := filter.Logs(ctx)
|
||||||
|
if err != nil || logs == nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
ret := make([]*Log, 0, len(logs))
|
||||||
|
for _, log := range logs {
|
||||||
|
ret = append(ret, &Log{
|
||||||
|
backend: be,
|
||||||
|
transaction: &Transaction{backend: be, hash: log.TxHash},
|
||||||
|
log: log,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
return ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Logs(ctx context.Context, args struct{ Filter BlockFilterCriteria }) ([]*Log, error) {
|
||||||
|
var addresses []common.Address
|
||||||
|
if args.Filter.Addresses != nil {
|
||||||
|
addresses = *args.Filter.Addresses
|
||||||
|
}
|
||||||
|
var topics [][]common.Hash
|
||||||
|
if args.Filter.Topics != nil {
|
||||||
|
topics = *args.Filter.Topics
|
||||||
|
}
|
||||||
|
hash := b.hash
|
||||||
|
if hash == (common.Hash{}) {
|
||||||
|
header, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
hash = header.Hash()
|
||||||
|
}
|
||||||
|
// Construct the range filter
|
||||||
|
filter := filters.NewBlockFilter(b.backend, hash, addresses, topics)
|
||||||
|
|
||||||
|
// Run the filter and return all the logs
|
||||||
|
return runFilter(ctx, b.backend, filter)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Account(ctx context.Context, args struct {
|
||||||
|
Address common.Address
|
||||||
|
}) (*Account, error) {
|
||||||
|
if b.numberOrHash == nil {
|
||||||
|
_, err := b.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return &Account{
|
||||||
|
backend: b.backend,
|
||||||
|
address: args.Address,
|
||||||
|
blockNrOrHash: *b.numberOrHash,
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// CallData encapsulates arguments to `call` or `estimateGas`.
|
||||||
|
// All arguments are optional.
|
||||||
|
type CallData struct {
|
||||||
|
From *common.Address // The Ethereum address the call is from.
|
||||||
|
To *common.Address // The Ethereum address the call is to.
|
||||||
|
Gas *hexutil.Uint64 // The amount of gas provided for the call.
|
||||||
|
GasPrice *hexutil.Big // The price of each unit of gas, in wei.
|
||||||
|
Value *hexutil.Big // The value sent along with the call.
|
||||||
|
Data *hexutil.Bytes // Any data sent with the call.
|
||||||
|
}
|
||||||
|
|
||||||
|
// CallResult encapsulates the result of an invocation of the `call` accessor.
|
||||||
|
type CallResult struct {
|
||||||
|
data hexutil.Bytes // The return data from the call
|
||||||
|
gasUsed hexutil.Uint64 // The amount of gas used
|
||||||
|
status hexutil.Uint64 // The return status of the call - 0 for failure or 1 for success.
|
||||||
|
}
|
||||||
|
|
||||||
|
func (c *CallResult) Data() hexutil.Bytes {
|
||||||
|
return c.data
|
||||||
|
}
|
||||||
|
|
||||||
|
func (c *CallResult) GasUsed() hexutil.Uint64 {
|
||||||
|
return c.gasUsed
|
||||||
|
}
|
||||||
|
|
||||||
|
func (c *CallResult) Status() hexutil.Uint64 {
|
||||||
|
return c.status
|
||||||
|
}
|
||||||
|
|
||||||
|
func (b *Block) Call(ctx context.Context, args struct {
|
||||||
|
Data eth.CallArgs
|
||||||
|
}) (*CallResult, error) {
|
||||||
|
if b.numberOrHash == nil {
|
||||||
|
_, err := b.resolve(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
}
|
||||||
|
result, gas, failed, err := eth.DoCall(ctx, b.backend, args.Data, *b.numberOrHash, nil, 5*time.Second, b.backend.RPCGasCap())
|
||||||
|
status := hexutil.Uint64(1)
|
||||||
|
if failed {
|
||||||
|
status = 0
|
||||||
|
}
|
||||||
|
return &CallResult{
|
||||||
|
data: hexutil.Bytes(result),
|
||||||
|
gasUsed: hexutil.Uint64(gas),
|
||||||
|
status: status,
|
||||||
|
}, err
|
||||||
|
}
|
||||||
|
|
||||||
|
// Resolver is the top-level object in the GraphQL hierarchy.
|
||||||
|
type Resolver struct {
|
||||||
|
backend *eth.Backend
|
||||||
|
}
|
||||||
|
|
||||||
|
func (r *Resolver) Block(ctx context.Context, args struct {
|
||||||
|
Number *hexutil.Uint64
|
||||||
|
Hash *common.Hash
|
||||||
|
}) (*Block, error) {
|
||||||
|
var block *Block
|
||||||
|
if args.Number != nil {
|
||||||
|
number := rpc.BlockNumber(uint64(*args.Number))
|
||||||
|
numberOrHash := rpc.BlockNumberOrHashWithNumber(number)
|
||||||
|
block = &Block{
|
||||||
|
backend: r.backend,
|
||||||
|
numberOrHash: &numberOrHash,
|
||||||
|
}
|
||||||
|
} else if args.Hash != nil {
|
||||||
|
numberOrHash := rpc.BlockNumberOrHashWithHash(*args.Hash, false)
|
||||||
|
block = &Block{
|
||||||
|
backend: r.backend,
|
||||||
|
numberOrHash: &numberOrHash,
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
numberOrHash := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
|
||||||
|
block = &Block{
|
||||||
|
backend: r.backend,
|
||||||
|
numberOrHash: &numberOrHash,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Resolve the header, return nil if it doesn't exist.
|
||||||
|
// Note we don't resolve block directly here since it will require an
|
||||||
|
// additional network request for light client.
|
||||||
|
h, err := block.resolveHeader(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
} else if h == nil {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
return block, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (r *Resolver) Blocks(ctx context.Context, args struct {
|
||||||
|
From hexutil.Uint64
|
||||||
|
To *hexutil.Uint64
|
||||||
|
}) ([]*Block, error) {
|
||||||
|
from := rpc.BlockNumber(args.From)
|
||||||
|
|
||||||
|
var to rpc.BlockNumber
|
||||||
|
if args.To != nil {
|
||||||
|
to = rpc.BlockNumber(*args.To)
|
||||||
|
} else {
|
||||||
|
to = rpc.BlockNumber(r.backend.CurrentBlock().Number().Int64())
|
||||||
|
}
|
||||||
|
if to < from {
|
||||||
|
return []*Block{}, nil
|
||||||
|
}
|
||||||
|
ret := make([]*Block, 0, to-from+1)
|
||||||
|
for i := from; i <= to; i++ {
|
||||||
|
numberOrHash := rpc.BlockNumberOrHashWithNumber(i)
|
||||||
|
ret = append(ret, &Block{
|
||||||
|
backend: r.backend,
|
||||||
|
numberOrHash: &numberOrHash,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
return ret, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
func (r *Resolver) Transaction(ctx context.Context, args struct{ Hash common.Hash }) (*Transaction, error) {
|
||||||
|
tx := &Transaction{
|
||||||
|
backend: r.backend,
|
||||||
|
hash: args.Hash,
|
||||||
|
}
|
||||||
|
// Resolve the transaction; if it doesn't exist, return nil.
|
||||||
|
t, err := tx.resolve(ctx)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
} else if t == nil {
|
||||||
|
return nil, nil
|
||||||
|
}
|
||||||
|
return tx, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// FilterCriteria encapsulates the arguments to `logs` on the root resolver object.
|
||||||
|
type FilterCriteria struct {
|
||||||
|
FromBlock *hexutil.Uint64 // beginning of the queried range, nil means genesis block
|
||||||
|
ToBlock *hexutil.Uint64 // end of the range, nil means latest block
|
||||||
|
Addresses *[]common.Address // restricts matches to events created by specific contracts
|
||||||
|
|
||||||
|
// The Topic list restricts matches to particular event topics. Each event has a list
|
||||||
|
// of topics. Topics matches a prefix of that list. An empty element slice matches any
|
||||||
|
// topic. Non-empty elements represent an alternative that matches any of the
|
||||||
|
// contained topics.
|
||||||
|
//
|
||||||
|
// Examples:
|
||||||
|
// {} or nil matches any topic list
|
||||||
|
// {{A}} matches topic A in first position
|
||||||
|
// {{}, {B}} matches any topic in first position, B in second position
|
||||||
|
// {{A}, {B}} matches topic A in first position, B in second position
|
||||||
|
// {{A, B}}, {C, D}} matches topic (A OR B) in first position, (C OR D) in second position
|
||||||
|
Topics *[][]common.Hash
|
||||||
|
}
|
||||||
|
|
||||||
|
func (r *Resolver) Logs(ctx context.Context, args struct{ Filter FilterCriteria }) ([]*Log, error) {
|
||||||
|
// Convert the RPC block numbers into internal representations
|
||||||
|
begin := rpc.LatestBlockNumber.Int64()
|
||||||
|
if args.Filter.FromBlock != nil {
|
||||||
|
begin = int64(*args.Filter.FromBlock)
|
||||||
|
}
|
||||||
|
end := rpc.LatestBlockNumber.Int64()
|
||||||
|
if args.Filter.ToBlock != nil {
|
||||||
|
end = int64(*args.Filter.ToBlock)
|
||||||
|
}
|
||||||
|
var addresses []common.Address
|
||||||
|
if args.Filter.Addresses != nil {
|
||||||
|
addresses = *args.Filter.Addresses
|
||||||
|
}
|
||||||
|
var topics [][]common.Hash
|
||||||
|
if args.Filter.Topics != nil {
|
||||||
|
topics = *args.Filter.Topics
|
||||||
|
}
|
||||||
|
// Construct the range filter
|
||||||
|
filter := filters.NewRangeFilter(filters.Backend(r.backend), begin, end, addresses, topics)
|
||||||
|
return runFilter(ctx, r.backend, filter)
|
||||||
|
}
|
28
pkg/graphql/graphql_test.go
Normal file
28
pkg/graphql/graphql_test.go
Normal file
@ -0,0 +1,28 @@
|
|||||||
|
// Copyright 2019 The go-ethereum Authors
|
||||||
|
// This file is part of the go-ethereum library.
|
||||||
|
//
|
||||||
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser 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,
|
||||||
|
// 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.
|
||||||
|
//
|
||||||
|
// 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
|
||||||
|
|
||||||
|
import (
|
||||||
|
"testing"
|
||||||
|
)
|
||||||
|
|
||||||
|
func TestBuildSchema(t *testing.T) {
|
||||||
|
// Make sure the schema can be parsed and matched up to the object model.
|
||||||
|
if _, err := newHandler(nil); err != nil {
|
||||||
|
t.Errorf("Could not construct GraphQL handler: %v", err)
|
||||||
|
}
|
||||||
|
}
|
292
pkg/graphql/schema.go
Normal file
292
pkg/graphql/schema.go
Normal file
@ -0,0 +1,292 @@
|
|||||||
|
// Copyright 2019 The go-ethereum Authors
|
||||||
|
// This file is part of the go-ethereum library.
|
||||||
|
//
|
||||||
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser 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,
|
||||||
|
// 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.
|
||||||
|
//
|
||||||
|
// 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
|
||||||
|
|
||||||
|
const schema string = `
|
||||||
|
# Bytes32 is a 32 byte binary string, represented as 0x-prefixed hexadecimal.
|
||||||
|
scalar Bytes32
|
||||||
|
# Address is a 20 byte Ethereum address, represented as 0x-prefixed hexadecimal.
|
||||||
|
scalar Address
|
||||||
|
# Bytes is an arbitrary length binary string, represented as 0x-prefixed hexadecimal.
|
||||||
|
# An empty byte string is represented as '0x'. Byte strings must have an even number of hexadecimal nybbles.
|
||||||
|
scalar Bytes
|
||||||
|
# BigInt is a large integer. Input is accepted as either a JSON number or as a string.
|
||||||
|
# Strings may be either decimal or 0x-prefixed hexadecimal. Output values are all
|
||||||
|
# 0x-prefixed hexadecimal.
|
||||||
|
scalar BigInt
|
||||||
|
# Long is a 64 bit unsigned integer.
|
||||||
|
scalar Long
|
||||||
|
|
||||||
|
schema {
|
||||||
|
query: Query
|
||||||
|
mutation: Mutation
|
||||||
|
}
|
||||||
|
|
||||||
|
# Account is an Ethereum account at a particular block.
|
||||||
|
type Account {
|
||||||
|
# Address is the address owning the account.
|
||||||
|
address: Address!
|
||||||
|
# Balance is the balance of the account, in wei.
|
||||||
|
balance: BigInt!
|
||||||
|
# TransactionCount is the number of transactions sent from this account,
|
||||||
|
# or in the case of a contract, the number of contracts created. Otherwise
|
||||||
|
# known as the nonce.
|
||||||
|
transactionCount: Long!
|
||||||
|
# Code contains the smart contract code for this account, if the account
|
||||||
|
# is a (non-self-destructed) contract.
|
||||||
|
code: Bytes!
|
||||||
|
# Storage provides access to the storage of a contract account, indexed
|
||||||
|
# by its 32 byte slot identifier.
|
||||||
|
storage(slot: Bytes32!): Bytes32!
|
||||||
|
}
|
||||||
|
|
||||||
|
# Log is an Ethereum event log.
|
||||||
|
type Log {
|
||||||
|
# Index is the index of this log in the block.
|
||||||
|
index: Int!
|
||||||
|
# Account is the account which generated this log - this will always
|
||||||
|
# be a contract account.
|
||||||
|
account(block: Long): Account!
|
||||||
|
# Topics is a list of 0-4 indexed topics for the log.
|
||||||
|
topics: [Bytes32!]!
|
||||||
|
# Data is unindexed data for this log.
|
||||||
|
data: Bytes!
|
||||||
|
# Transaction is the transaction that generated this log entry.
|
||||||
|
transaction: Transaction!
|
||||||
|
}
|
||||||
|
|
||||||
|
# Transaction is an Ethereum transaction.
|
||||||
|
type Transaction {
|
||||||
|
# Hash is the hash of this transaction.
|
||||||
|
hash: Bytes32!
|
||||||
|
# Nonce is the nonce of the account this transaction was generated with.
|
||||||
|
nonce: Long!
|
||||||
|
# Index is the index of this transaction in the parent block. This will
|
||||||
|
# be null if the transaction has not yet been mined.
|
||||||
|
index: Int
|
||||||
|
# From is the account that sent this transaction - this will always be
|
||||||
|
# an externally owned account.
|
||||||
|
from(block: Long): Account!
|
||||||
|
# To is the account the transaction was sent to. This is null for
|
||||||
|
# contract-creating transactions.
|
||||||
|
to(block: Long): Account
|
||||||
|
# Value is the value, in wei, sent along with this transaction.
|
||||||
|
value: BigInt!
|
||||||
|
# GasPrice is the price offered to miners for gas, in wei per unit.
|
||||||
|
gasPrice: BigInt!
|
||||||
|
# Gas is the maximum amount of gas this transaction can consume.
|
||||||
|
gas: Long!
|
||||||
|
# InputData is the data supplied to the target of the transaction.
|
||||||
|
inputData: Bytes!
|
||||||
|
# Block is the block this transaction was mined in. This will be null if
|
||||||
|
# the transaction has not yet been mined.
|
||||||
|
block: Block
|
||||||
|
|
||||||
|
# Status is the return status of the transaction. This will be 1 if the
|
||||||
|
# transaction succeeded, or 0 if it failed (due to a revert, or due to
|
||||||
|
# running out of gas). If the transaction has not yet been mined, this
|
||||||
|
# field will be null.
|
||||||
|
status: Long
|
||||||
|
# GasUsed is the amount of gas that was used processing this transaction.
|
||||||
|
# If the transaction has not yet been mined, this field will be null.
|
||||||
|
gasUsed: Long
|
||||||
|
# CumulativeGasUsed is the total gas used in the block up to and including
|
||||||
|
# this transaction. If the transaction has not yet been mined, this field
|
||||||
|
# will be null.
|
||||||
|
cumulativeGasUsed: Long
|
||||||
|
# CreatedContract is the account that was created by a contract creation
|
||||||
|
# transaction. If the transaction was not a contract creation transaction,
|
||||||
|
# or it has not yet been mined, this field will be null.
|
||||||
|
createdContract(block: Long): Account
|
||||||
|
# Logs is a list of log entries emitted by this transaction. If the
|
||||||
|
# transaction has not yet been mined, this field will be null.
|
||||||
|
logs: [Log!]
|
||||||
|
r: BigInt!
|
||||||
|
s: BigInt!
|
||||||
|
v: BigInt!
|
||||||
|
}
|
||||||
|
|
||||||
|
# BlockFilterCriteria encapsulates log filter criteria for a filter applied
|
||||||
|
# to a single block.
|
||||||
|
input BlockFilterCriteria {
|
||||||
|
# Addresses is list of addresses that are of interest. If this list is
|
||||||
|
# empty, results will not be filtered by address.
|
||||||
|
addresses: [Address!]
|
||||||
|
# Topics list restricts matches to particular event topics. Each event has a list
|
||||||
|
# of topics. Topics matches a prefix of that list. An empty element array matches any
|
||||||
|
# topic. Non-empty elements represent an alternative that matches any of the
|
||||||
|
# contained topics.
|
||||||
|
#
|
||||||
|
# Examples:
|
||||||
|
# - [] or nil matches any topic list
|
||||||
|
# - [[A]] matches topic A in first position
|
||||||
|
# - [[], [B]] matches any topic in first position, B in second position
|
||||||
|
# - [[A], [B]] matches topic A in first position, B in second position
|
||||||
|
# - [[A, B]], [C, D]] matches topic (A OR B) in first position, (C OR D) in second position
|
||||||
|
topics: [[Bytes32!]!]
|
||||||
|
}
|
||||||
|
|
||||||
|
# Block is an Ethereum block.
|
||||||
|
type Block {
|
||||||
|
# Number is the number of this block, starting at 0 for the genesis block.
|
||||||
|
number: Long!
|
||||||
|
# Hash is the block hash of this block.
|
||||||
|
hash: Bytes32!
|
||||||
|
# Parent is the parent block of this block.
|
||||||
|
parent: Block
|
||||||
|
# Nonce is the block nonce, an 8 byte sequence determined by the miner.
|
||||||
|
nonce: Bytes!
|
||||||
|
# TransactionsRoot is the keccak256 hash of the root of the trie of transactions in this block.
|
||||||
|
transactionsRoot: Bytes32!
|
||||||
|
# TransactionCount is the number of transactions in this block. if
|
||||||
|
# transactions are not available for this block, this field will be null.
|
||||||
|
transactionCount: Int
|
||||||
|
# StateRoot is the keccak256 hash of the state trie after this block was processed.
|
||||||
|
stateRoot: Bytes32!
|
||||||
|
# ReceiptsRoot is the keccak256 hash of the trie of transaction receipts in this block.
|
||||||
|
receiptsRoot: Bytes32!
|
||||||
|
# Miner is the account that mined this block.
|
||||||
|
miner(block: Long): Account!
|
||||||
|
# ExtraData is an arbitrary data field supplied by the miner.
|
||||||
|
extraData: Bytes!
|
||||||
|
# GasLimit is the maximum amount of gas that was available to transactions in this block.
|
||||||
|
gasLimit: Long!
|
||||||
|
# GasUsed is the amount of gas that was used executing transactions in this block.
|
||||||
|
gasUsed: Long!
|
||||||
|
# Timestamp is the unix timestamp at which this block was mined.
|
||||||
|
timestamp: Long!
|
||||||
|
# LogsBloom is a bloom filter that can be used to check if a block may
|
||||||
|
# contain log entries matching a filter.
|
||||||
|
logsBloom: Bytes!
|
||||||
|
# MixHash is the hash that was used as an input to the PoW process.
|
||||||
|
mixHash: Bytes32!
|
||||||
|
# Difficulty is a measure of the difficulty of mining this block.
|
||||||
|
difficulty: BigInt!
|
||||||
|
# TotalDifficulty is the sum of all difficulty values up to and including
|
||||||
|
# this block.
|
||||||
|
totalDifficulty: BigInt!
|
||||||
|
# OmmerCount is the number of ommers (AKA uncles) associated with this
|
||||||
|
# block. If ommers are unavailable, this field will be null.
|
||||||
|
ommerCount: Int
|
||||||
|
# Ommers is a list of ommer (AKA uncle) blocks associated with this block.
|
||||||
|
# If ommers are unavailable, this field will be null. Depending on your
|
||||||
|
# node, the transactions, transactionAt, transactionCount, ommers,
|
||||||
|
# ommerCount and ommerAt fields may not be available on any ommer blocks.
|
||||||
|
ommers: [Block]
|
||||||
|
# OmmerAt returns the ommer (AKA uncle) at the specified index. If ommers
|
||||||
|
# are unavailable, or the index is out of bounds, this field will be null.
|
||||||
|
ommerAt(index: Int!): Block
|
||||||
|
# OmmerHash is the keccak256 hash of all the ommers (AKA uncles)
|
||||||
|
# associated with this block.
|
||||||
|
ommerHash: Bytes32!
|
||||||
|
# Transactions is a list of transactions associated with this block. If
|
||||||
|
# transactions are unavailable for this block, this field will be null.
|
||||||
|
transactions: [Transaction!]
|
||||||
|
# TransactionAt returns the transaction at the specified index. If
|
||||||
|
# transactions are unavailable for this block, or if the index is out of
|
||||||
|
# bounds, this field will be null.
|
||||||
|
transactionAt(index: Int!): Transaction
|
||||||
|
# Logs returns a filtered set of logs from this block.
|
||||||
|
logs(filter: BlockFilterCriteria!): [Log!]!
|
||||||
|
# Account fetches an Ethereum account at the current block's state.
|
||||||
|
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.
|
||||||
|
# All fields are optional.
|
||||||
|
input CallData {
|
||||||
|
# From is the address making the call.
|
||||||
|
from: Address
|
||||||
|
# To is the address the call is sent to.
|
||||||
|
to: Address
|
||||||
|
# Gas is the amount of gas sent with the call.
|
||||||
|
gas: Long
|
||||||
|
# GasPrice is the price, in wei, offered for each unit of gas.
|
||||||
|
gasPrice: BigInt
|
||||||
|
# Value is the value, in wei, sent along with the call.
|
||||||
|
value: BigInt
|
||||||
|
# Data is the data sent to the callee.
|
||||||
|
data: Bytes
|
||||||
|
}
|
||||||
|
|
||||||
|
# CallResult is the result of a local call operation.
|
||||||
|
type CallResult {
|
||||||
|
# Data is the return data of the called contract.
|
||||||
|
data: Bytes!
|
||||||
|
# GasUsed is the amount of gas used by the call, after any refunds.
|
||||||
|
gasUsed: Long!
|
||||||
|
# Status is the result of the call - 1 for success or 0 for failure.
|
||||||
|
status: Long!
|
||||||
|
}
|
||||||
|
|
||||||
|
# FilterCriteria encapsulates log filter criteria for searching log entries.
|
||||||
|
input FilterCriteria {
|
||||||
|
# FromBlock is the block at which to start searching, inclusive. Defaults
|
||||||
|
# to the latest block if not supplied.
|
||||||
|
fromBlock: Long
|
||||||
|
# ToBlock is the block at which to stop searching, inclusive. Defaults
|
||||||
|
# to the latest block if not supplied.
|
||||||
|
toBlock: Long
|
||||||
|
# Addresses is a list of addresses that are of interest. If this list is
|
||||||
|
# empty, results will not be filtered by address.
|
||||||
|
addresses: [Address!]
|
||||||
|
# Topics list restricts matches to particular event topics. Each event has a list
|
||||||
|
# of topics. Topics matches a prefix of that list. An empty element array matches any
|
||||||
|
# topic. Non-empty elements represent an alternative that matches any of the
|
||||||
|
# contained topics.
|
||||||
|
#
|
||||||
|
# Examples:
|
||||||
|
# - [] or nil matches any topic list
|
||||||
|
# - [[A]] matches topic A in first position
|
||||||
|
# - [[], [B]] matches any topic in first position, B in second position
|
||||||
|
# - [[A], [B]] matches topic A in first position, B in second position
|
||||||
|
# - [[A, B]], [C, D]] matches topic (A OR B) in first position, (C OR D) in second position
|
||||||
|
topics: [[Bytes32!]!]
|
||||||
|
}
|
||||||
|
|
||||||
|
type Query {
|
||||||
|
# Block fetches an Ethereum block by number or by hash. If neither is
|
||||||
|
# supplied, the most recent known block is returned.
|
||||||
|
block(number: Long, hash: Bytes32): Block
|
||||||
|
# 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!
|
||||||
|
}
|
||||||
|
`
|
104
pkg/graphql/service.go
Normal file
104
pkg/graphql/service.go
Normal file
@ -0,0 +1,104 @@
|
|||||||
|
// Copyright 2019 The go-ethereum Authors
|
||||||
|
// This file is part of the go-ethereum library.
|
||||||
|
//
|
||||||
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||||
|
// it under the terms of the GNU Lesser 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,
|
||||||
|
// 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.
|
||||||
|
//
|
||||||
|
// 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
|
||||||
|
|
||||||
|
import (
|
||||||
|
"fmt"
|
||||||
|
"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/vulcanize/ipld-eth-server/pkg/eth"
|
||||||
|
)
|
||||||
|
|
||||||
|
// Service encapsulates a GraphQL service.
|
||||||
|
type Service struct {
|
||||||
|
endpoint string // The host:port endpoint for this service.
|
||||||
|
cors []string // Allowed CORS domains
|
||||||
|
vhosts []string // Recognised vhosts
|
||||||
|
timeouts rpc.HTTPTimeouts // Timeout settings for HTTP requests.
|
||||||
|
backend *eth.Backend // The backend that queries will operate onn.
|
||||||
|
handler http.Handler // The `http.Handler` used to answer queries.
|
||||||
|
listener net.Listener // The listening socket.
|
||||||
|
}
|
||||||
|
|
||||||
|
// New constructs a new GraphQL service instance.
|
||||||
|
func New(backend *eth.Backend, endpoint string, cors, vhosts []string, timeouts rpc.HTTPTimeouts) (*Service, error) {
|
||||||
|
return &Service{
|
||||||
|
endpoint: endpoint,
|
||||||
|
cors: cors,
|
||||||
|
vhosts: vhosts,
|
||||||
|
timeouts: timeouts,
|
||||||
|
backend: backend,
|
||||||
|
}, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Protocols returns the list of protocols exported by this service.
|
||||||
|
func (s *Service) Protocols() []p2p.Protocol { return nil }
|
||||||
|
|
||||||
|
// APIs returns the list of APIs exported by this service.
|
||||||
|
func (s *Service) APIs() []rpc.API { return nil }
|
||||||
|
|
||||||
|
// Start is called after all services have been constructed and the networking
|
||||||
|
// 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)
|
||||||
|
if err != nil {
|
||||||
|
return err
|
||||||
|
}
|
||||||
|
if s.listener, err = net.Listen("tcp", s.endpoint); err != nil {
|
||||||
|
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))
|
||||||
|
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) {
|
||||||
|
q := Resolver{backend}
|
||||||
|
|
||||||
|
s, err := graphql.ParseSchema(schema, &q)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
h := &relay.Handler{Schema: s}
|
||||||
|
|
||||||
|
mux := http.NewServeMux()
|
||||||
|
mux.Handle("/", GraphiQL{})
|
||||||
|
mux.Handle("/graphql", h)
|
||||||
|
mux.Handle("/graphql/", h)
|
||||||
|
return mux, nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// Stop terminates all goroutines belonging to the service, blocking until they
|
||||||
|
// are all terminated.
|
||||||
|
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))
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
@ -68,7 +68,6 @@ type Config struct {
|
|||||||
func NewConfig() (*Config, error) {
|
func NewConfig() (*Config, error) {
|
||||||
c := new(Config)
|
c := new(Config)
|
||||||
|
|
||||||
viper.BindEnv("ethereum.httpPath", shared.ETH_HTTP_PATH)
|
|
||||||
viper.BindEnv("server.wsPath", SERVER_WS_PATH)
|
viper.BindEnv("server.wsPath", SERVER_WS_PATH)
|
||||||
viper.BindEnv("server.ipcPath", SERVER_IPC_PATH)
|
viper.BindEnv("server.ipcPath", SERVER_IPC_PATH)
|
||||||
viper.BindEnv("server.httpPath", SERVER_HTTP_PATH)
|
viper.BindEnv("server.httpPath", SERVER_HTTP_PATH)
|
||||||
|
Loading…
Reference in New Issue
Block a user