9660de7d9f
Using the shutdown context provided by the internal signal package means vote-validator can exit cleanly if shutdown is requested by the user.
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
// Copyright (c) 2021-2023 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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dcrdtypes "github.com/decred/dcrd/rpc/jsonrpc/types/v4"
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)
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type txns struct {
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Transactions []string `json:"transactions"`
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}
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type txInputID struct {
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Hash string `json:"hash"`
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Index uint32 `json:"vin_index"`
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}
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type vout struct {
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Value float64 `json:"value"`
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N uint32 `json:"n"`
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Version uint16 `json:"version"`
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ScriptPubKeyDecoded dcrdtypes.ScriptPubKeyResult `json:"scriptPubKey"`
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Spend *txInputID `json:"spend"`
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}
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type tx struct {
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TxID string `json:"txid"`
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Size int32 `json:"size"`
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Version int32 `json:"version"`
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Locktime uint32 `json:"locktime"`
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Expiry uint32 `json:"expiry"`
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Vin []dcrdtypes.Vin `json:"vin"`
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Vout []vout `json:"vout"`
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Confirmations int64 `json:"confirmations"`
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}
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type dcrdataClient struct {
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URL string
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}
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func (d *dcrdataClient) txns(ctx context.Context, txnHashes []string, spends bool) ([]tx, error) {
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jsonData, err := json.Marshal(txns{
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Transactions: txnHashes,
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})
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if err != nil {
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return nil, err
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}
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url := fmt.Sprintf("%s/api/txs?spends=%t", d.URL, spends)
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request, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(jsonData))
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if err != nil {
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return nil, err
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}
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request.Header.Set("Content-Type", "application/json; charset=UTF-8")
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client := &http.Client{}
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resp, err := client.Do(request)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("dcrdata response: %v", resp.Status)
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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var txns []tx
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err = json.Unmarshal(body, &txns)
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if err != nil {
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return nil, err
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}
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return txns, nil
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}
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