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ethclient: use package hexutil for JSON handling

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This commit is contained in:
Felix Lange 2016-11-28 00:41:25 +01:00
parent 24f288770e
commit 1609df3275
1 changed files with 35 additions and 34 deletions
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69
ethclient/ethclient.go
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@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum" "github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/rlp"
@ -156,9 +157,9 @@ func (ec *Client) TransactionByHash(ctx context.Context, hash common.Hash) (*typ
// TransactionCount returns the total number of transactions in the given block. // TransactionCount returns the total number of transactions in the given block.
func (ec *Client) TransactionCount(ctx context.Context, blockHash common.Hash) (uint, error) { func (ec *Client) TransactionCount(ctx context.Context, blockHash common.Hash) (uint, error) {
var num rpc.HexNumber var num hexutil.Uint
err := ec.c.CallContext(ctx, &num, "eth_getBlockTransactionCountByHash", blockHash) err := ec.c.CallContext(ctx, &num, "eth_getBlockTransactionCountByHash", blockHash)
return num.Uint(), err return uint(num), err
} }
// TransactionInBlock returns a single transaction at index in the given block. // TransactionInBlock returns a single transaction at index in the given block.
@ -196,11 +197,11 @@ func toBlockNumArg(number *big.Int) string {
} }
type rpcProgress struct { type rpcProgress struct {
StartingBlock rpc.HexNumber StartingBlock hexutil.Uint64
CurrentBlock rpc.HexNumber CurrentBlock hexutil.Uint64
HighestBlock rpc.HexNumber HighestBlock hexutil.Uint64
PulledStates rpc.HexNumber PulledStates hexutil.Uint64
KnownStates rpc.HexNumber KnownStates hexutil.Uint64
} }
// SyncProgress retrieves the current progress of the sync algorithm. If there's // SyncProgress retrieves the current progress of the sync algorithm. If there's
@ -220,11 +221,11 @@ func (ec *Client) SyncProgress(ctx context.Context) (*ethereum.SyncProgress, err
return nil, err return nil, err
} }
return &ethereum.SyncProgress{ return &ethereum.SyncProgress{
StartingBlock: progress.StartingBlock.Uint64(), StartingBlock: uint64(progress.StartingBlock),
CurrentBlock: progress.CurrentBlock.Uint64(), CurrentBlock: uint64(progress.CurrentBlock),
HighestBlock: progress.HighestBlock.Uint64(), HighestBlock: uint64(progress.HighestBlock),
PulledStates: progress.PulledStates.Uint64(), PulledStates: uint64(progress.PulledStates),
KnownStates: progress.KnownStates.Uint64(), KnownStates: uint64(progress.KnownStates),
}, nil }, nil
} }
@ -239,7 +240,7 @@ func (ec *Client) SubscribeNewHead(ctx context.Context, ch chan<- *types.Header)
// BalanceAt returns the wei balance of the given account. // BalanceAt returns the wei balance of the given account.
// The block number can be nil, in which case the balance is taken from the latest known block. // The block number can be nil, in which case the balance is taken from the latest known block.
func (ec *Client) BalanceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (*big.Int, error) { func (ec *Client) BalanceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (*big.Int, error) {
var result rpc.HexNumber var result hexutil.Big
err := ec.c.CallContext(ctx, &result, "eth_getBalance", account, toBlockNumArg(blockNumber)) err := ec.c.CallContext(ctx, &result, "eth_getBalance", account, toBlockNumArg(blockNumber))
return (*big.Int)(&result), err return (*big.Int)(&result), err
} }
@ -247,7 +248,7 @@ func (ec *Client) BalanceAt(ctx context.Context, account common.Address, blockNu
// StorageAt returns the value of key in the contract storage of the given account. // StorageAt returns the value of key in the contract storage of the given account.
// The block number can be nil, in which case the value is taken from the latest known block. // The block number can be nil, in which case the value is taken from the latest known block.
func (ec *Client) StorageAt(ctx context.Context, account common.Address, key common.Hash, blockNumber *big.Int) ([]byte, error) { func (ec *Client) StorageAt(ctx context.Context, account common.Address, key common.Hash, blockNumber *big.Int) ([]byte, error) {
var result rpc.HexBytes var result hexutil.Bytes
err := ec.c.CallContext(ctx, &result, "eth_getStorageAt", account, key, toBlockNumArg(blockNumber)) err := ec.c.CallContext(ctx, &result, "eth_getStorageAt", account, key, toBlockNumArg(blockNumber))
return result, err return result, err
} }
@ -255,7 +256,7 @@ func (ec *Client) StorageAt(ctx context.Context, account common.Address, key com
// CodeAt returns the contract code of the given account. // CodeAt returns the contract code of the given account.
// The block number can be nil, in which case the code is taken from the latest known block. // The block number can be nil, in which case the code is taken from the latest known block.
func (ec *Client) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) { func (ec *Client) CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error) {
var result rpc.HexBytes var result hexutil.Bytes
err := ec.c.CallContext(ctx, &result, "eth_getCode", account, toBlockNumArg(blockNumber)) err := ec.c.CallContext(ctx, &result, "eth_getCode", account, toBlockNumArg(blockNumber))
return result, err return result, err
} }
@ -263,9 +264,9 @@ func (ec *Client) CodeAt(ctx context.Context, account common.Address, blockNumbe
// NonceAt returns the account nonce of the given account. // NonceAt returns the account nonce of the given account.
// The block number can be nil, in which case the nonce is taken from the latest known block. // The block number can be nil, in which case the nonce is taken from the latest known block.
func (ec *Client) NonceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (uint64, error) { func (ec *Client) NonceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (uint64, error) {
var result rpc.HexNumber var result hexutil.Uint64
err := ec.c.CallContext(ctx, &result, "eth_getTransactionCount", account, toBlockNumArg(blockNumber)) err := ec.c.CallContext(ctx, &result, "eth_getTransactionCount", account, toBlockNumArg(blockNumber))
return result.Uint64(), err return uint64(result), err
} }
// Filters // Filters
@ -299,21 +300,21 @@ func toFilterArg(q ethereum.FilterQuery) interface{} {
// PendingBalanceAt returns the wei balance of the given account in the pending state. // PendingBalanceAt returns the wei balance of the given account in the pending state.
func (ec *Client) PendingBalanceAt(ctx context.Context, account common.Address) (*big.Int, error) { func (ec *Client) PendingBalanceAt(ctx context.Context, account common.Address) (*big.Int, error) {
var result rpc.HexNumber var result hexutil.Big
err := ec.c.CallContext(ctx, &result, "eth_getBalance", account, "pending") err := ec.c.CallContext(ctx, &result, "eth_getBalance", account, "pending")
return (*big.Int)(&result), err return (*big.Int)(&result), err
} }
// PendingStorageAt returns the value of key in the contract storage of the given account in the pending state. // PendingStorageAt returns the value of key in the contract storage of the given account in the pending state.
func (ec *Client) PendingStorageAt(ctx context.Context, account common.Address, key common.Hash) ([]byte, error) { func (ec *Client) PendingStorageAt(ctx context.Context, account common.Address, key common.Hash) ([]byte, error) {
var result rpc.HexBytes var result hexutil.Bytes
err := ec.c.CallContext(ctx, &result, "eth_getStorageAt", account, key, "pending") err := ec.c.CallContext(ctx, &result, "eth_getStorageAt", account, key, "pending")
return result, err return result, err
} }
// PendingCodeAt returns the contract code of the given account in the pending state. // PendingCodeAt returns the contract code of the given account in the pending state.
func (ec *Client) PendingCodeAt(ctx context.Context, account common.Address) ([]byte, error) { func (ec *Client) PendingCodeAt(ctx context.Context, account common.Address) ([]byte, error) {
var result rpc.HexBytes var result hexutil.Bytes
err := ec.c.CallContext(ctx, &result, "eth_getCode", account, "pending") err := ec.c.CallContext(ctx, &result, "eth_getCode", account, "pending")
return result, err return result, err
} }
@ -321,16 +322,16 @@ func (ec *Client) PendingCodeAt(ctx context.Context, account common.Address) ([]
// PendingNonceAt returns the account nonce of the given account in the pending state. // PendingNonceAt returns the account nonce of the given account in the pending state.
// This is the nonce that should be used for the next transaction. // This is the nonce that should be used for the next transaction.
func (ec *Client) PendingNonceAt(ctx context.Context, account common.Address) (uint64, error) { func (ec *Client) PendingNonceAt(ctx context.Context, account common.Address) (uint64, error) {
var result rpc.HexNumber var result hexutil.Uint64
err := ec.c.CallContext(ctx, &result, "eth_getTransactionCount", account, "pending") err := ec.c.CallContext(ctx, &result, "eth_getTransactionCount", account, "pending")
return result.Uint64(), err return uint64(result), err
} }
// PendingTransactionCount returns the total number of transactions in the pending state. // PendingTransactionCount returns the total number of transactions in the pending state.
func (ec *Client) PendingTransactionCount(ctx context.Context) (uint, error) { func (ec *Client) PendingTransactionCount(ctx context.Context) (uint, error) {
var num rpc.HexNumber var num hexutil.Uint
err := ec.c.CallContext(ctx, &num, "eth_getBlockTransactionCountByNumber", "pending") err := ec.c.CallContext(ctx, &num, "eth_getBlockTransactionCountByNumber", "pending")
return num.Uint(), err return uint(num), err
} }
// TODO: SubscribePendingTransactions (needs server side) // TODO: SubscribePendingTransactions (needs server side)
@ -344,29 +345,29 @@ func (ec *Client) PendingTransactionCount(ctx context.Context) (uint, error) {
// case the code is taken from the latest known block. Note that state from very old // case the code is taken from the latest known block. Note that state from very old
// blocks might not be available. // blocks might not be available.
func (ec *Client) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) { func (ec *Client) CallContract(ctx context.Context, msg ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) {
var hex string var hex hexutil.Bytes
err := ec.c.CallContext(ctx, &hex, "eth_call", toCallArg(msg), toBlockNumArg(blockNumber)) err := ec.c.CallContext(ctx, &hex, "eth_call", toCallArg(msg), toBlockNumArg(blockNumber))
if err != nil { if err != nil {
return nil, err return nil, err
} }
return common.FromHex(hex), nil return hex, nil
} }
// PendingCallContract executes a message call transaction using the EVM. // PendingCallContract executes a message call transaction using the EVM.
// The state seen by the contract call is the pending state. // The state seen by the contract call is the pending state.
func (ec *Client) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) { func (ec *Client) PendingCallContract(ctx context.Context, msg ethereum.CallMsg) ([]byte, error) {
var hex string var hex hexutil.Bytes
err := ec.c.CallContext(ctx, &hex, "eth_call", toCallArg(msg), "pending") err := ec.c.CallContext(ctx, &hex, "eth_call", toCallArg(msg), "pending")
if err != nil { if err != nil {
return nil, err return nil, err
} }
return common.FromHex(hex), nil return hex, nil
} }
// SuggestGasPrice retrieves the currently suggested gas price to allow a timely // SuggestGasPrice retrieves the currently suggested gas price to allow a timely
// execution of a transaction. // execution of a transaction.
func (ec *Client) SuggestGasPrice(ctx context.Context) (*big.Int, error) { func (ec *Client) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
var hex rpc.HexNumber var hex hexutil.Big
if err := ec.c.CallContext(ctx, &hex, "eth_gasPrice"); err != nil { if err := ec.c.CallContext(ctx, &hex, "eth_gasPrice"); err != nil {
return nil, err return nil, err
} }
@ -378,7 +379,7 @@ func (ec *Client) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
// the true gas limit requirement as other transactions may be added or removed by miners, // the true gas limit requirement as other transactions may be added or removed by miners,
// but it should provide a basis for setting a reasonable default. // but it should provide a basis for setting a reasonable default.
func (ec *Client) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (*big.Int, error) { func (ec *Client) EstimateGas(ctx context.Context, msg ethereum.CallMsg) (*big.Int, error) {
var hex rpc.HexNumber var hex hexutil.Big
err := ec.c.CallContext(ctx, &hex, "eth_estimateGas", toCallArg(msg)) err := ec.c.CallContext(ctx, &hex, "eth_estimateGas", toCallArg(msg))
if err != nil { if err != nil {
return nil, err return nil, err
@ -404,16 +405,16 @@ func toCallArg(msg ethereum.CallMsg) interface{} {
"to": msg.To, "to": msg.To,
} }
if len(msg.Data) > 0 { if len(msg.Data) > 0 {
arg["data"] = fmt.Sprintf("%#x", msg.Data) arg["data"] = hexutil.Bytes(msg.Data)
} }
if msg.Value != nil { if msg.Value != nil {
arg["value"] = fmt.Sprintf("%#x", msg.Value) arg["value"] = (*hexutil.Big)(msg.Value)
} }
if msg.Gas != nil { if msg.Gas != nil {
arg["gas"] = fmt.Sprintf("%#x", msg.Gas) arg["gas"] = (*hexutil.Big)(msg.Gas)
} }
if msg.GasPrice != nil { if msg.GasPrice != nil {
arg["gasPrice"] = fmt.Sprintf("%#x", msg.GasPrice) arg["gasPrice"] = (*hexutil.Big)(msg.GasPrice)
} }
return arg return arg
} }