77 lines
1.8 KiB
Go
77 lines
1.8 KiB
Go
package chains
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import (
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"context"
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"encoding/json"
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"fmt"
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"time"
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)
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const (
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cosmosMsgExecuteContract = "/cosmwasm.wasm.v1.MsgExecuteContract"
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)
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// cosmosTxsResponse models the response body from `GET /cosmos/tx/v1beta1/txs/{hash}`
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type cosmosTxsResponse struct {
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TxResponse struct {
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Tx struct {
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Body struct {
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Messages []struct {
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Type_ string `json:"@type"`
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Sender string `json:"sender"`
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} `json:"messages"`
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} `json:"body"`
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} `json:"tx"`
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Timestamp string `json:"timestamp"`
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TxHash string `json:"txhash"`
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} `json:"tx_response"`
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}
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func fetchCosmosTx(
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ctx context.Context,
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baseUri string,
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txHash string,
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) (*TxDetail, error) {
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// Query the Cosmos transaction endpoint
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uri := fmt.Sprintf("%s/cosmos/tx/v1beta1/txs/%s", baseUri, txHash)
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body, err := httpGet(ctx, uri)
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if err != nil {
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return nil, fmt.Errorf("failed to query cosmos tx endpoint: %w", err)
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}
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// Deserialize response body
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var response cosmosTxsResponse
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if err := json.Unmarshal(body, &response); err != nil {
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return nil, fmt.Errorf("failed to deserialize cosmos tx response: %w", err)
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}
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// Find the sender address
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var sender string
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for i := range response.TxResponse.Tx.Body.Messages {
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msg := &response.TxResponse.Tx.Body.Messages[i]
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if msg.Type_ == cosmosMsgExecuteContract {
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sender = msg.Sender
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break
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}
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}
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if sender == "" {
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return nil, fmt.Errorf("failed to find sender address in cosmos tx response")
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}
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// Parse the timestamp
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timestamp, err := time.Parse("2006-01-02T15:04:05Z", response.TxResponse.Timestamp)
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if err != nil {
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return nil, fmt.Errorf("failed to parse tx timestamp from cosmos tx response: %w", err)
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}
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// Build the result object and return
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TxDetail := &TxDetail{
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From: sender,
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Timestamp: timestamp,
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NativeTxHash: response.TxResponse.TxHash,
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}
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return TxDetail, nil
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}
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