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]

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