46 lines
999 B
Go
46 lines
999 B
Go
package main
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import (
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"context"
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"encoding/json"
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"io/ioutil"
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"log"
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"math/big"
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"time"
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"git.grassecon.net/chaintool/gorge/pkg/block"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/lmittmann/w3"
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)
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func main() {
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client := w3.MustDial("https://rpc.ankr.com/eth")
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defer client.Close()
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defer traceExecTime(time.Now())
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blockFetcher := block.NewBlockFetcher(block.BlockFetcherOpts{
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W3Client: client,
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Signer: types.NewEIP155Signer(big.NewInt(1)),
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})
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
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defer cancel()
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// https://etherscan.io/block/16031266
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res, err := blockFetcher.FetchBlock(ctx, big.NewInt(5000000))
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if err != nil {
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log.Fatalf("Could not fetch block: %v", err)
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}
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resJson, err := json.Marshal(res)
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if err != nil {
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log.Fatalf("json.Marshal failed: %v", err)
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}
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if err := ioutil.WriteFile("block.json", resJson, 0644); err != nil {
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log.Fatalf("Write file failed: %v", err)
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}
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log.Printf("Block successfully obtained")
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}
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