Print TX Hash from Withdrawals

[trajan0x]

Add on for #2815

• Requires adding an optional api to submitter, should return a Handler (you can see an example of this [here]()
• https://pkg.go.dev/github.com/synapsecns/sanguine/core/metrics#section-readme (see Gin() and how it's used, particularly in contrib/promexporter)
• Configure this api to start at boot up in relapi/server.go and return GetNonceStatus for a given nonce as json
• Write a client for this submitter api, attach the client to the rfq api client (relapi/client.go)
• From the CLI call this on a loop until we get the txhash, consider using github.com/charmbracelet/huh/spinner for this (see an example here: this part is purely optional

[greptile-apps[bot]]

Implementation Steps

1. Add API to Submitter:

   • In ethergo/submitter/submitter.go, add a new method to the TransactionSubmitter interface and its implementation in txSubmitterImpl to return the transaction hash for a given nonce.

     func (t *txSubmitterImpl) GetTxHashByNonce(ctx context.Context, chainID *big.Int, nonce uint64) (string, error) {
     txs, err := t.db.GetNonceAttemptsByStatus(ctx, t.signer.Address(), chainID, nonce, db.Confirmed)
     if err != nil {
        return "", fmt.Errorf("could not get nonce attempts by status: %w", err)
     }
     if len(txs) == 0 {
        return "", fmt.Errorf("no transactions found for nonce %d", nonce)
     }
     return txs[0].Hash().Hex(), nil
     }

2. Configure API in relapi/server.go:

   • Add a new route in relapi/server.go to handle the new API endpoint.

     
     const getTxHashByNonceRoute = "/txhash/by_nonce"

   func (r *RelayerAPIServer) Run(ctx context.Context) error { // ... existing code ... engine.GET(getTxHashByNonceRoute, h.GetTxHashByNonce) // ... existing code ... }

   func (h Handler) GetTxHashByNonce(c gin.Context) { chainID := c.Query("chain_id") nonce := c.Query("nonce") // Convert chainID and nonce to appropriate types // Call the submitter's GetTxHashByNonce method // Return the result as JSON }

3. Write Client for Submitter API:

   • In relapi/client.go, add a new method to the RelayerClient interface and its implementation in relayerClient to call the new API endpoint.

     func (r *relayerClient) GetTxHashByNonce(ctx context.Context, chainID string, nonce string) (string, error) {
     var res struct { Hash string `json:"hash"` }
     resp, err := r.client.R().SetContext(ctx).
        SetQueryParam("chain_id", chainID).
        SetQueryParam("nonce", nonce).
        SetResult(&res).
        Get(getTxHashByNonceRoute)
     if err != nil {
        return "", fmt.Errorf("failed to get tx hash by nonce: %w", err)
     }
     if resp.StatusCode() != http.StatusOK {
        return "", fmt.Errorf("unexpected status code: %d", resp.StatusCode())
     }
     return res.Hash, nil
     }

4. CLI Loop to Retrieve TX Hash:

   • Use github.com/charmbracelet/huh/spinner to create a spinner while polling the new API endpoint in a loop until the transaction hash is retrieved.

     func main() {
     client := loadConfig()
     chainID := "1" // Example chain ID
     nonce := "123" // Example nonce
     var txHash string
     var err error
     s := spinner.New()
     s.Title("Retrieving transaction hash...")
     s.Action(func() {
        for {
            txHash, err = client.GetTxHashByNonce(context.Background(), chainID, nonce)
            if err == nil && txHash != "" {
                break
            }
            time.Sleep(2 * time.Second) // Polling interval
        }
     }).Run()
     if err != nil {
        panic(err)
     }
     fmt.Printf("Transaction hash: %s\n", txHash)
     }

References

/services/rfq/relayer/relapi/server.go /services/rfq/relayer/relapi/client.go /ethergo/submitter/submitter.go /contrib/opbot/signoz/example/main.go /contrib/promexporter /ethergo/submitter /services/rfq/relayer/relapi

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[golangisfun123]

resolved in #2845