graphql: Updates to graphql support to match EIP1767 (#19238)
Updates to match EIP1767
This commit is contained in:
parent
6e401792ce
commit
acebccc3bf
@ -19,6 +19,7 @@ package graphql
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"net/http"
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@ -43,6 +44,9 @@ import (
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"github.com/graph-gophers/graphql-go/relay"
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)
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var OnlyOnMainChainError = errors.New("This operation is only available for blocks on the canonical chain.")
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var BlockInvariantError = errors.New("Block objects must be instantiated with at least one of num or hash.")
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// Account represents an Ethereum account at a particular block.
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type Account struct {
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backend *eth.EthAPIBackend
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@ -144,8 +148,9 @@ func (t *Transaction) resolve(ctx context.Context) (*types.Transaction, error) {
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if tx != nil {
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t.tx = tx
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t.block = &Block{
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backend: t.backend,
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hash: blockHash,
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backend: t.backend,
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hash: blockHash,
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canonical: unknown,
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}
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t.index = index
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} else {
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@ -332,16 +337,47 @@ func (t *Transaction) Logs(ctx context.Context) (*[]*Log, error) {
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return &ret, nil
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}
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// Block represennts an Ethereum block.
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type BlockType int
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const (
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unknown BlockType = iota
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isCanonical
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notCanonical
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)
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// Block represents an Ethereum block.
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// backend, and either num or hash are mandatory. All other fields are lazily fetched
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// when required.
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type Block struct {
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backend *eth.EthAPIBackend
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num *rpc.BlockNumber
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hash common.Hash
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header *types.Header
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block *types.Block
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receipts []*types.Receipt
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backend *eth.EthAPIBackend
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num *rpc.BlockNumber
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hash common.Hash
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header *types.Header
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block *types.Block
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receipts []*types.Receipt
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canonical BlockType // Indicates if this block is on the main chain or not.
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}
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func (b *Block) onMainChain(ctx context.Context) error {
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if b.canonical == unknown {
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header, err := b.resolveHeader(ctx)
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if err != nil {
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return err
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}
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canonHeader, err := b.backend.HeaderByNumber(ctx, rpc.BlockNumber(header.Number.Uint64()))
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if err != nil {
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return err
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}
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if header.Hash() == canonHeader.Hash() {
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b.canonical = isCanonical
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} else {
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b.canonical = notCanonical
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}
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}
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if b.canonical != isCanonical {
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return OnlyOnMainChainError
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}
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return nil
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}
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// resolve returns the internal Block object representing this block, fetching
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@ -367,6 +403,10 @@ func (b *Block) resolve(ctx context.Context) (*types.Block, error) {
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// if necessary. Call this function instead of `resolve` unless you need the
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// additional data (transactions and uncles).
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func (b *Block) resolveHeader(ctx context.Context) (*types.Header, error) {
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if b.num == nil && b.hash == (common.Hash{}) {
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return nil, BlockInvariantError
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}
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if b.header == nil {
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if _, err := b.resolve(ctx); err != nil {
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return nil, err
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@ -447,15 +487,18 @@ func (b *Block) Parent(ctx context.Context) (*Block, error) {
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if b.header != nil && b.block.NumberU64() > 0 {
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num := rpc.BlockNumber(b.header.Number.Uint64() - 1)
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return &Block{
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backend: b.backend,
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num: &num,
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hash: b.header.ParentHash,
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backend: b.backend,
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num: &num,
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hash: b.header.ParentHash,
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canonical: unknown,
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}, nil
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} else if b.num != nil && *b.num != 0 {
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}
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if b.num != nil && *b.num != 0 {
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num := *b.num - 1
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return &Block{
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backend: b.backend,
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num: &num,
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backend: b.backend,
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num: &num,
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canonical: isCanonical,
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}, nil
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}
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return nil, nil
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@ -544,10 +587,11 @@ func (b *Block) Ommers(ctx context.Context) (*[]*Block, error) {
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for _, uncle := range block.Uncles() {
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blockNumber := rpc.BlockNumber(uncle.Number.Uint64())
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ret = append(ret, &Block{
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backend: b.backend,
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num: &blockNumber,
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hash: uncle.Hash(),
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header: uncle,
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backend: b.backend,
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num: &blockNumber,
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hash: uncle.Hash(),
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header: uncle,
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canonical: notCanonical,
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})
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}
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return &ret, nil
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@ -672,10 +716,11 @@ func (b *Block) OmmerAt(ctx context.Context, args struct{ Index int32 }) (*Block
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uncle := uncles[args.Index]
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blockNumber := rpc.BlockNumber(uncle.Number.Uint64())
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return &Block{
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backend: b.backend,
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num: &blockNumber,
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hash: uncle.Hash(),
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header: uncle,
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backend: b.backend,
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num: &blockNumber,
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hash: uncle.Hash(),
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header: uncle,
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canonical: notCanonical,
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}, nil
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}
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@ -744,6 +789,162 @@ func (b *Block) Logs(ctx context.Context, args struct{ Filter BlockFilterCriteri
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return runFilter(ctx, b.backend, filter)
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}
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func (b *Block) Account(ctx context.Context, args struct {
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Address common.Address
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}) (*Account, error) {
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err := b.onMainChain(ctx)
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if err != nil {
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return nil, err
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}
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if b.num == nil {
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_, err := b.resolveHeader(ctx)
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if err != nil {
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return nil, err
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}
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}
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return &Account{
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backend: b.backend,
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address: args.Address,
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blockNumber: *b.num,
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}, nil
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}
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// CallData encapsulates arguments to `call` or `estimateGas`.
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// All arguments are optional.
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type CallData struct {
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From *common.Address // The Ethereum address the call is from.
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To *common.Address // The Ethereum address the call is to.
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Gas *hexutil.Uint64 // The amount of gas provided for the call.
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GasPrice *hexutil.Big // The price of each unit of gas, in wei.
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Value *hexutil.Big // The value sent along with the call.
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Data *hexutil.Bytes // Any data sent with the call.
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}
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// CallResult encapsulates the result of an invocation of the `call` accessor.
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type CallResult struct {
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data hexutil.Bytes // The return data from the call
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gasUsed hexutil.Uint64 // The amount of gas used
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status hexutil.Uint64 // The return status of the call - 0 for failure or 1 for success.
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}
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func (c *CallResult) Data() hexutil.Bytes {
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return c.data
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}
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func (c *CallResult) GasUsed() hexutil.Uint64 {
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return c.gasUsed
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}
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func (c *CallResult) Status() hexutil.Uint64 {
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return c.status
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}
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func (b *Block) Call(ctx context.Context, args struct {
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Data ethapi.CallArgs
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}) (*CallResult, error) {
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err := b.onMainChain(ctx)
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if err != nil {
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return nil, err
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}
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if b.num == nil {
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_, err := b.resolveHeader(ctx)
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if err != nil {
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return nil, err
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}
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}
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result, gas, failed, err := ethapi.DoCall(ctx, b.backend, args.Data, *b.num, vm.Config{}, 5*time.Second)
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status := hexutil.Uint64(1)
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if failed {
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status = 0
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}
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return &CallResult{
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data: hexutil.Bytes(result),
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gasUsed: hexutil.Uint64(gas),
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status: status,
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}, err
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}
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func (b *Block) EstimateGas(ctx context.Context, args struct {
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Data ethapi.CallArgs
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}) (hexutil.Uint64, error) {
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err := b.onMainChain(ctx)
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if err != nil {
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return hexutil.Uint64(0), err
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}
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if b.num == nil {
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_, err := b.resolveHeader(ctx)
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if err != nil {
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return hexutil.Uint64(0), err
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}
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}
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gas, err := ethapi.DoEstimateGas(ctx, b.backend, args.Data, *b.num)
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return gas, err
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}
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type Pending struct {
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backend *eth.EthAPIBackend
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}
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func (p *Pending) TransactionCount(ctx context.Context) (int32, error) {
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txs, err := p.backend.GetPoolTransactions()
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return int32(len(txs)), err
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}
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func (p *Pending) Transactions(ctx context.Context) (*[]*Transaction, error) {
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txs, err := p.backend.GetPoolTransactions()
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if err != nil {
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return nil, err
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}
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ret := make([]*Transaction, 0, len(txs))
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for i, tx := range txs {
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ret = append(ret, &Transaction{
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backend: p.backend,
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hash: tx.Hash(),
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tx: tx,
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index: uint64(i),
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})
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}
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return &ret, nil
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}
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func (p *Pending) Account(ctx context.Context, args struct {
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Address common.Address
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}) *Account {
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return &Account{
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backend: p.backend,
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address: args.Address,
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blockNumber: rpc.PendingBlockNumber,
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}
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}
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func (p *Pending) Call(ctx context.Context, args struct {
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Data ethapi.CallArgs
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}) (*CallResult, error) {
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result, gas, failed, err := ethapi.DoCall(ctx, p.backend, args.Data, rpc.PendingBlockNumber, vm.Config{}, 5*time.Second)
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status := hexutil.Uint64(1)
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if failed {
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status = 0
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}
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return &CallResult{
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data: hexutil.Bytes(result),
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gasUsed: hexutil.Uint64(gas),
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status: status,
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}, err
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}
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func (p *Pending) EstimateGas(ctx context.Context, args struct {
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Data ethapi.CallArgs
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}) (hexutil.Uint64, error) {
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return ethapi.DoEstimateGas(ctx, p.backend, args.Data, rpc.PendingBlockNumber)
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}
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// Resolver is the top-level object in the GraphQL hierarchy.
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type Resolver struct {
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backend *eth.EthAPIBackend
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@ -757,19 +958,22 @@ func (r *Resolver) Block(ctx context.Context, args struct {
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if args.Number != nil {
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num := rpc.BlockNumber(uint64(*args.Number))
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block = &Block{
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backend: r.backend,
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num: &num,
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backend: r.backend,
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num: &num,
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canonical: isCanonical,
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}
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} else if args.Hash != nil {
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block = &Block{
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backend: r.backend,
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hash: *args.Hash,
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backend: r.backend,
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hash: *args.Hash,
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canonical: unknown,
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}
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} else {
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num := rpc.LatestBlockNumber
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block = &Block{
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backend: r.backend,
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num: &num,
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backend: r.backend,
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num: &num,
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canonical: isCanonical,
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}
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}
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@ -804,27 +1008,16 @@ func (r *Resolver) Blocks(ctx context.Context, args struct {
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for i := from; i <= to; i++ {
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num := i
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ret = append(ret, &Block{
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backend: r.backend,
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num: &num,
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backend: r.backend,
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num: &num,
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canonical: isCanonical,
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})
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}
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return ret, nil
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}
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func (r *Resolver) Account(ctx context.Context, args struct {
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Address common.Address
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BlockNumber *hexutil.Uint64
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}) *Account {
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blockNumber := rpc.LatestBlockNumber
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if args.BlockNumber != nil {
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blockNumber = rpc.BlockNumber(*args.BlockNumber)
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}
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return &Account{
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backend: r.backend,
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address: args.Address,
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blockNumber: blockNumber,
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}
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func (r *Resolver) Pending(ctx context.Context) *Pending {
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return &Pending{r.backend}
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}
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func (r *Resolver) Transaction(ctx context.Context, args struct{ Hash common.Hash }) (*Transaction, error) {
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@ -852,70 +1045,6 @@ func (r *Resolver) SendRawTransaction(ctx context.Context, args struct{ Data hex
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return hash, err
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}
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// CallData encapsulates arguments to `call` or `estimateGas`.
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// All arguments are optional.
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type CallData struct {
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From *common.Address // The Ethereum address the call is from.
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To *common.Address // The Ethereum address the call is to.
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Gas *hexutil.Uint64 // The amount of gas provided for the call.
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GasPrice *hexutil.Big // The price of each unit of gas, in wei.
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Value *hexutil.Big // The value sent along with the call.
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Data *hexutil.Bytes // Any data sent with the call.
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}
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// CallResult encapsulates the result of an invocation of the `call` accessor.
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type CallResult struct {
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data hexutil.Bytes // The return data from the call
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gasUsed hexutil.Uint64 // The amount of gas used
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status hexutil.Uint64 // The return status of the call - 0 for failure or 1 for success.
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}
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func (c *CallResult) Data() hexutil.Bytes {
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return c.data
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}
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func (c *CallResult) GasUsed() hexutil.Uint64 {
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return c.gasUsed
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}
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func (c *CallResult) Status() hexutil.Uint64 {
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return c.status
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}
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func (r *Resolver) Call(ctx context.Context, args struct {
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Data ethapi.CallArgs
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BlockNumber *hexutil.Uint64
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}) (*CallResult, error) {
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blockNumber := rpc.LatestBlockNumber
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if args.BlockNumber != nil {
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blockNumber = rpc.BlockNumber(*args.BlockNumber)
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}
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result, gas, failed, err := ethapi.DoCall(ctx, r.backend, args.Data, blockNumber, vm.Config{}, 5*time.Second)
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status := hexutil.Uint64(1)
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if failed {
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status = 0
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}
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return &CallResult{
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data: hexutil.Bytes(result),
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gasUsed: hexutil.Uint64(gas),
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status: status,
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}, err
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}
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func (r *Resolver) EstimateGas(ctx context.Context, args struct {
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Data ethapi.CallArgs
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BlockNumber *hexutil.Uint64
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}) (hexutil.Uint64, error) {
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blockNumber := rpc.LatestBlockNumber
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if args.BlockNumber != nil {
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blockNumber = rpc.BlockNumber(*args.BlockNumber)
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}
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gas, err := ethapi.DoEstimateGas(ctx, r.backend, args.Data, blockNumber)
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return gas, err
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}
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// FilterCriteria encapsulates the arguments to `logs` on the root resolver object.
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type FilterCriteria struct {
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FromBlock *hexutil.Uint64 // beginning of the queried range, nil means genesis block
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@ -22,6 +22,7 @@ const schema string = `
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# Address is a 20 byte Ethereum address, represented as 0x-prefixed hexadecimal.
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scalar Address
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# Bytes is an arbitrary length binary string, represented as 0x-prefixed hexadecimal.
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# An empty byte string is represented as '0x'. Byte strings must have an even number of hexadecimal nybbles.
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scalar Bytes
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# BigInt is a large integer. Input is accepted as either a JSON number or as a string.
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# Strings may be either decimal or 0x-prefixed hexadecimal. Output values are all
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@ -75,7 +76,7 @@ const schema string = `
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# Nonce is the nonce of the account this transaction was generated with.
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nonce: Long!
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# Index is the index of this transaction in the parent block. This will
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# be null if the transaction has not yet beenn mined.
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# be null if the transaction has not yet been mined.
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index: Int
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# From is the account that sent this transaction - this will always be
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# an externally owned account.
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@ -123,16 +124,16 @@ const schema string = `
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# empty, results will not be filtered by address.
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addresses: [Address!]
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# Topics list restricts matches to particular event topics. Each event has a list
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# of topics. Topics matches a prefix of that list. An empty element array matches any
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# topic. Non-empty elements represent an alternative that matches any of the
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# contained topics.
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#
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# Examples:
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# - [] or nil matches any topic list
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# - [[A]] matches topic A in first position
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# - [[], [B]] matches any topic in first position, B in second position
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# - [[A], [B]] matches topic A in first position, B in second position
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# - [[A, B]], [C, D]] matches topic (A OR B) in first position, (C OR D) in second position
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# of topics. Topics matches a prefix of that list. An empty element array matches any
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# topic. Non-empty elements represent an alternative that matches any of the
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# contained topics.
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#
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# Examples:
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# - [] or nil matches any topic list
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# - [[A]] matches topic A in first position
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# - [[], [B]] matches any topic in first position, B in second position
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# - [[A], [B]] matches topic A in first position, B in second position
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# - [[A, B]], [C, D]] matches topic (A OR B) in first position, (C OR D) in second position
|
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topics: [[Bytes32!]!]
|
||||
}
|
||||
|
||||
@ -198,6 +199,13 @@ const schema string = `
|
||||
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.
|
||||
@ -217,7 +225,7 @@ const schema string = `
|
||||
data: Bytes
|
||||
}
|
||||
|
||||
# CallResult is the result of a local call operationn.
|
||||
# CallResult is the result of a local call operation.
|
||||
type CallResult {
|
||||
# Data is the return data of the called contract.
|
||||
data: Bytes!
|
||||
@ -239,16 +247,16 @@ const schema string = `
|
||||
# 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
|
||||
# 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!]!]
|
||||
}
|
||||
|
||||
@ -268,25 +276,32 @@ const schema string = `
|
||||
knownStates: Long
|
||||
}
|
||||
|
||||
# Pending represents the current pending state.
|
||||
type Pending {
|
||||
# TransactionCount is the number of transactions in the pending state.
|
||||
transactionCount: Int!
|
||||
# Transactions is a list of transactions in the current pending state.
|
||||
transactions: [Transaction!]
|
||||
# Account fetches an Ethereum account for the pending state.
|
||||
account(address: Address!): Account!
|
||||
# Call executes a local call operation for the pending state.
|
||||
call(data: CallData!): CallResult
|
||||
# EstimateGas estimates the amount of gas that will be required for
|
||||
# successful execution of a transaction for the pending state.
|
||||
estimateGas(data: CallData!): Long!
|
||||
}
|
||||
|
||||
type Query {
|
||||
# Account fetches an Ethereum account at the specified block number.
|
||||
# If blockNumber is not provided, it defaults to the most recent block.
|
||||
account(address: Address!, blockNumber: Long): Account!
|
||||
# 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
|
||||
# Call executes a local call operation. If blockNumber is not specified,
|
||||
# it defaults to the most recent known block.
|
||||
call(data: CallData!, blockNumber: Long): CallResult
|
||||
# EstimateGas estimates the amount of gas that will be required for
|
||||
# successful execution of a transaction. If blockNumber is not specified,
|
||||
# it defaults ot the most recent known block.
|
||||
estimateGas(data: CallData!, blockNumber: Long): Long!
|
||||
# Logs returns log entries matching the provided filter.
|
||||
logs(filter: FilterCriteria!): [Log!]!
|
||||
# GasPrice returns the node's estimate of a gas price sufficient to
|
||||
|
Loading…
Reference in New Issue
Block a user