85 lines
2.1 KiB
Go
85 lines
2.1 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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"github.com/wormhole-foundation/wormhole-explorer/common/pool"
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"github.com/wormhole-foundation/wormhole-explorer/txtracker/internal/metrics"
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sdk "github.com/wormhole-foundation/wormhole/sdk/vaa"
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"go.uber.org/zap"
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)
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type algorandTransactionResponse struct {
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Transaction struct {
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ID string `json:"id"`
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Sender string `json:"sender"`
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RoundTime int `json:"round-time"`
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} `json:"transaction"`
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}
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func FetchAlgorandTx(
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ctx context.Context,
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pool *pool.Pool,
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txHash string,
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metrics metrics.Metrics,
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logger *zap.Logger,
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) (*TxDetail, error) {
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// get rpc sorted by score and priority.
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rpcs := pool.GetItems()
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if len(rpcs) == 0 {
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return nil, ErrChainNotSupported
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}
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// Call the transaction endpoint of the Algorand Indexer REST API
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var txDetail *TxDetail
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var err error
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for _, rpc := range rpcs {
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// Wait for the RPC rate limiter
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rpc.Wait(ctx)
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txDetail, err = fetchAlgorandTx(ctx, rpc.Id, txHash)
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if txDetail != nil {
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metrics.IncCallRpcSuccess(uint16(sdk.ChainIDAlgorand), rpc.Description)
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break
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}
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if err != nil {
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metrics.IncCallRpcError(uint16(sdk.ChainIDAlgorand), rpc.Description)
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logger.Debug("Failed to fetch transaction from Algorand indexer", zap.String("url", rpc.Id), zap.Error(err))
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}
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}
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return txDetail, err
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}
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func fetchAlgorandTx(
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ctx context.Context,
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baseUrl string,
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txHash string,
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) (*TxDetail, error) {
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// Call the transaction endpoint of the Algorand Indexer REST API
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var response algorandTransactionResponse
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{
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// Perform the HTTP request
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url := fmt.Sprintf("%s/v2/transactions/%s", baseUrl, txHash)
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body, err := httpGet(ctx, url)
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if err != nil {
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return nil, fmt.Errorf("HTTP request to Algorand transactions endpoint failed: %w", err)
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}
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// Decode the response
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if err := json.Unmarshal(body, &response); err != nil {
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return nil, fmt.Errorf("failed to decode Algorand transactions response as JSON: %w", err)
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}
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}
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// Populate the result struct and return
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txDetail := TxDetail{
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NativeTxHash: response.Transaction.ID,
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From: response.Transaction.Sender,
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}
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return &txDetail, nil
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}
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