Add support for Sui in the `tx-tracker` service (#416)

### Description

This pull request modifies the `tx-tracker` service to support the Sui blockchain.

In particular, this will make the Sui sender addresses available for the Wormhole Scan UI.

deploy/tx-tracker-backfiller/tx-tracker-backfiller-job.yaml

@@ -67,6 +67,10 @@ spec:
               value: {{ .SOLANA_BASE_URL }}
             - name: SOLANA_REQUESTS_PER_MINUTE
               value: "{{ .SOLANA_REQUESTS_PER_MINUTE }}"
+            - name: SUI_BASE_URL
+              value: {{ .SUI_BASE_URL }}
+            - name: SUI_REQUESTS_PER_MINUTE
+              value: "{{ .SUI_REQUESTS_PER_MINUTE }}"
             - name: NUM_WORKERS
               value: "100"
             - name: BULK_SIZE

deploy/tx-tracker/tx-tracker-service.yaml

@@ -93,6 +93,10 @@ spec:
               value: {{ .SOLANA_BASE_URL }}
             - name: SOLANA_REQUESTS_PER_MINUTE
               value: "{{ .SOLANA_REQUESTS_PER_MINUTE }}"
+            - name: SUI_BASE_URL
+              value: {{ .SUI_BASE_URL }}
+            - name: SUI_REQUESTS_PER_MINUTE
+              value: "{{ .SUI_REQUESTS_PER_MINUTE }}"
           resources:
             limits:
               memory: {{ .RESOURCES_LIMITS_MEMORY }}

tx-tracker/chains/sui.go

@@ -0,0 +1,59 @@
+package chains
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/wormhole-foundation/wormhole-explorer/txtracker/config"
+)
+
+type suiGetTransactionBlockResponse struct {
+	Digest      string `json:"digest"`
+	TimestampMs int64  `json:"timestampMs,string"`
+	Transaction struct {
+		Data struct {
+			Sender string `json:"sender"`
+		} `json:"data"`
+	} `json:"transaction"`
+}
+
+type suiGetTransactionBlockOpts struct {
+	ShowInput          bool `json:"showInput"`
+	ShowRawInput       bool `json:"showRawInput"`
+	ShowEffects        bool `json:"showEffects"`
+	ShowEvents         bool `json:"showEvents"`
+	ShowObjectChanges  bool `json:"showObjectChanges"`
+	ShowBalanceChanges bool `json:"showBalanceChanges"`
+}
+
+func fetchSuiTx(
+	ctx context.Context,
+	cfg *config.RpcProviderSettings,
+	txHash string,
+) (*TxDetail, error) {
+
+	// Initialize RPC client
+	client, err := rpc.DialContext(ctx, cfg.SuiBaseUrl)
+	if err != nil {
+		return nil, fmt.Errorf("failed to initialize RPC client: %w", err)
+	}
+	defer client.Close()
+
+	// Query transaction data
+	var reply suiGetTransactionBlockResponse
+	opts := suiGetTransactionBlockOpts{ShowInput: true}
+	err = client.CallContext(ctx, &reply, "sui_getTransactionBlock", txHash, opts)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get tx by hash: %w", err)
+	}
+
+	// Populate the response struct and return
+	txDetail := TxDetail{
+		NativeTxHash: reply.Digest,
+		From:         reply.Transaction.Data.Sender,
+		Timestamp:    time.UnixMilli(reply.TimestampMs),
+	}
+	return &txDetail, nil
+}

tx-tracker/chains/tx.go

@@ -39,6 +39,7 @@ var tickers = struct {
 	optimism  *time.Ticker
 	polygon   *time.Ticker
 	solana    *time.Ticker
+	sui       *time.Ticker
 }{}
 
 func Initialize(cfg *config.RpcProviderSettings) {
@@ -52,6 +53,9 @@ func Initialize(cfg *config.RpcProviderSettings) {
 		return time.Duration(roundedUp)
 	}
 
+	// this adapter sends 1 request per txHash
+	tickers.sui = time.NewTicker(f(cfg.SuiRequestsPerMinute))
+
 	// these adapters send 2 requests per txHash
 	tickers.arbitrum = time.NewTicker(f(cfg.ArbitrumRequestsPerMinute / 2))
 	tickers.avalanche = time.NewTicker(f(cfg.AvalancheRequestsPerMinute / 2))
@@ -119,6 +123,9 @@ func FetchTx(
 			return fetchEthTx(ctx, txHash, cfg.AvalancheBaseUrl)
 		}
 		rateLimiter = *tickers.avalanche
+	case vaa.ChainIDSui:
+		fetchFunc = fetchSuiTx
+		rateLimiter = *tickers.sui
 	default:
 		return nil, ErrChainNotSupported
 	}

tx-tracker/config/structs.go

@@ -77,6 +77,8 @@ type RpcProviderSettings struct {
 	PolygonRequestsPerMinute   uint16 `split_words:"true" required:"true"`
 	SolanaBaseUrl              string `split_words:"true" required:"true"`
 	SolanaRequestsPerMinute    uint16 `split_words:"true" required:"true"`
+	SuiBaseUrl                 string `split_words:"true" required:"true"`
+	SuiRequestsPerMinute       uint16 `split_words:"true" required:"true"`
 }
 
 func LoadFromEnv[T any]() (*T, error) {