mirror of
https://github.com/grassrootseconomics/cic-chain-events.git
synced 2025-07-01 00:32:49 +02:00
Mohammed Sohail
f29e2a9ce7
* move filters to internal folder * rpc block fetcher * add benchmarks: goos: linux goarch: amd64 pkg: github.com/grassrootseconomics/cic-chain-events/pkg/fetch cpu: AMD EPYC Processor Benchmark_RPC Benchmark_RPC/RPC_Block_Fetcher_Benchmark Benchmark_RPC/RPC_Block_Fetcher_Benchmark-4 25 46000646 ns/op 221697 B/op 844 allocs/op Benchmark_GraphQL Benchmark_GraphQL/GraphQL_Block_Fetcher_Benchmark Benchmark_GraphQL/GraphQL_Block_Fetcher_Benchmark-4 56 21219962 ns/op 56686 B/op 94 allocs/op PASS ok github.com/grassrootseconomics/cic-chain-events/pkg/fetch 2.920s
91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
package fetch
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import (
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"context"
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"math/big"
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"strings"
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"github.com/celo-org/celo-blockchain/common/hexutil"
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"github.com/celo-org/celo-blockchain/core/types"
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celo "github.com/grassrootseconomics/cic-celo-sdk"
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"github.com/grassrootseconomics/w3-celo-patch/module/eth"
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"github.com/grassrootseconomics/w3-celo-patch/w3types"
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)
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type RPCOpts struct {
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RPCProvider *celo.Provider
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}
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type RPC struct {
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provider *celo.Provider
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}
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func NewRPCFetcher(o RPCOpts) Fetch {
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return &RPC{
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provider: o.RPCProvider,
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}
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}
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// This method makes 2 calls. 1 for the block and 1 batched call for txs + receipts.
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// Should work on free tier RPC services.
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func (f *RPC) Block(ctx context.Context, blockNumber uint64) (FetchResponse, error) {
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var (
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block types.Block
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fetchResponse FetchResponse
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)
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if err := f.provider.Client.CallCtx(
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ctx,
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eth.BlockByNumber(big.NewInt(int64(blockNumber))).Returns(&block),
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); err != nil {
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return FetchResponse{}, err
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}
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txCount := len(block.Transactions())
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batchCalls := make([]w3types.Caller, txCount*2)
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txs := make([]types.Transaction, txCount)
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txsReceipt := make([]types.Receipt, txCount)
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for i, tx := range block.Transactions() {
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batchCalls[i] = eth.Tx(tx.Hash()).Returns(&txs[i])
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batchCalls[txCount+i] = eth.TxReceipt(tx.Hash()).Returns(&txsReceipt[i])
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}
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if err := f.provider.Client.CallCtx(
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ctx,
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batchCalls...,
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); err != nil {
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return FetchResponse{}, nil
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}
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for i := 0; i < txCount; i++ {
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tx := Transaction{}
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tx.Block.Number = block.NumberU64()
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tx.Block.Timestamp = hexutil.EncodeUint64(block.Time())
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tx.Hash = txsReceipt[i].TxHash.Hex()
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tx.Index = txsReceipt[i].TransactionIndex
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from, err := types.Sender(types.LatestSignerForChainID(txs[i].ChainId()), &txs[i])
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if err != nil {
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return FetchResponse{}, err
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}
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tx.From.Address = strings.ToLower(from.Hex())
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tx.To.Address = strings.ToLower(txs[i].To().Hex())
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tx.Value = hexutil.EncodeBig(txs[i].Value())
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tx.InputData = hexutil.Encode(txs[i].Data())
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tx.Status = txsReceipt[i].Status
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tx.GasUsed = txsReceipt[i].GasUsed
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fetchResponse.Data.Block.Transactions = append(
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fetchResponse.Data.Block.Transactions,
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tx,
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)
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}
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return fetchResponse, nil
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}
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