Pending transaction event from pool

api/stream.go

@@ -99,23 +99,16 @@ func (s *StreamAPI) NewPendingTransactions(ctx context.Context, fullTx *bool) (*
 		s.transactionsPublisher,
 		func(notifier *rpc.Notifier, sub *rpc.Subscription) func(any) error {
 			return func(data any) error {
-				tx, ok := data.(models.Transaction)
+				tx, ok := data.(*gethTypes.Transaction)
 				if !ok {
 					return fmt.Errorf("invalid data sent to pending transaction subscription")
 				}
 
-				var res any
 				if fullTx != nil && *fullTx {
-					if r, err := NewTransaction(tx, s.config.EVMNetworkID); err != nil {
-						return err
-					} else {
-						res = r
-					}
-				} else {
-					res = tx.Hash()
+					return notifier.Notify(sub.ID, tx)
 				}
 
-				return notifier.Notify(sub.ID, res)
+				return notifier.Notify(sub.ID, tx.Hash())
 			}
 		},
 	)

bootstrap/bootstrap.go

@@ -223,7 +223,6 @@ func startIngestion(
 		transactions,
 		accounts,
 		blocksPublisher,
-		transactionsPublisher,
 		logsPublisher,
 		logger,
 	)
@@ -286,12 +285,16 @@ func startServer(
 		return fmt.Errorf("failed to create a COA signer: %w", err)
 	}
 
+	// create transaction pool
+	txPool := requester.NewTxPool(client, transactionsPublisher, logger)
+
 	evm, err := requester.NewEVM(
 		client,
 		cfg,
 		signer,
 		logger,
 		blocks,
+		txPool,
 	)
 	if err != nil {
 		return fmt.Errorf("failed to create EVM requester: %w", err)

services/ingestion/engine.go

@@ -17,18 +17,17 @@ import (
 var _ models.Engine = &Engine{}
 
 type Engine struct {
-	subscriber            EventSubscriber
-	store                 *pebble.Storage
-	blocks                storage.BlockIndexer
-	receipts              storage.ReceiptIndexer
-	transactions          storage.TransactionIndexer
-	accounts              storage.AccountIndexer
-	log                   zerolog.Logger
-	evmLastHeight         *models.SequentialHeight
-	status                *models.EngineStatus
-	blocksPublisher       *models.Publisher
-	transactionsPublisher *models.Publisher
-	logsPublisher         *models.Publisher
+	subscriber      EventSubscriber
+	store           *pebble.Storage
+	blocks          storage.BlockIndexer
+	receipts        storage.ReceiptIndexer
+	transactions    storage.TransactionIndexer
+	accounts        storage.AccountIndexer
+	log             zerolog.Logger
+	evmLastHeight   *models.SequentialHeight
+	status          *models.EngineStatus
+	blocksPublisher *models.Publisher
+	logsPublisher   *models.Publisher
 }
 
 func NewEventIngestionEngine(
@@ -39,24 +38,22 @@ func NewEventIngestionEngine(
 	transactions storage.TransactionIndexer,
 	accounts storage.AccountIndexer,
 	blocksPublisher *models.Publisher,
-	transactionsPublisher *models.Publisher,
 	logsPublisher *models.Publisher,
 	log zerolog.Logger,
 ) *Engine {
 	log = log.With().Str("component", "ingestion").Logger()
 
 	return &Engine{
-		subscriber:            subscriber,
-		store:                 store,
-		blocks:                blocks,
-		receipts:              receipts,
-		transactions:          transactions,
-		accounts:              accounts,
-		log:                   log,
-		status:                models.NewEngineStatus(),
-		blocksPublisher:       blocksPublisher,
-		transactionsPublisher: transactionsPublisher,
-		logsPublisher:         logsPublisher,
+		subscriber:      subscriber,
+		store:           store,
+		blocks:          blocks,
+		receipts:        receipts,
+		transactions:    transactions,
+		accounts:        accounts,
+		log:             log,
+		status:          models.NewEngineStatus(),
+		blocksPublisher: blocksPublisher,
+		logsPublisher:   logsPublisher,
 	}
 }
 
@@ -181,9 +178,7 @@ func (e *Engine) processEvents(events *models.CadenceEvents) error {
 		e.blocksPublisher.Publish(b)
 	}
 
-	for i, r := range receipts {
-		e.transactionsPublisher.Publish(txs[i])
-
+	for _, r := range receipts {
 		if len(r.Logs) > 0 {
 			e.logsPublisher.Publish(r.Logs)
 		}

services/ingestion/engine_test.go

@@ -68,7 +68,6 @@ func TestSerialBlockIngestion(t *testing.T) {
 			accounts,
 			models.NewPublisher(),
 			models.NewPublisher(),
-			models.NewPublisher(),
 			zerolog.Nop(),
 		)
 
@@ -148,7 +147,6 @@ func TestSerialBlockIngestion(t *testing.T) {
 			accounts,
 			models.NewPublisher(),
 			models.NewPublisher(),
-			models.NewPublisher(),
 			zerolog.Nop(),
 		)
 
@@ -258,7 +256,6 @@ func TestBlockAndTransactionIngestion(t *testing.T) {
 			accounts,
 			models.NewPublisher(),
 			models.NewPublisher(),
-			models.NewPublisher(),
 			zerolog.Nop(),
 		)
 
@@ -357,7 +354,6 @@ func TestBlockAndTransactionIngestion(t *testing.T) {
 			accounts,
 			models.NewPublisher(),
 			models.NewPublisher(),
-			models.NewPublisher(),
 			zerolog.Nop(),
 		)
 
@@ -452,7 +448,6 @@ func TestBlockAndTransactionIngestion(t *testing.T) {
 			accounts,
 			models.NewPublisher(),
 			models.NewPublisher(),
-			models.NewPublisher(),
 			zerolog.Nop(),
 		)
 

services/requester/pool.go

@@ -25,18 +25,23 @@ const (
 // and after submitted based on different strategies.
 
 type TxPool struct {
-	logger zerolog.Logger
-	client *CrossSporkClient
-	pool   *sync.Map
-	// todo add a broadcaster for pending transaction streaming
+	logger      zerolog.Logger
+	client      *CrossSporkClient
+	pool        *sync.Map
+	txPublisher *models.Publisher
 	// todo add methods to inspect transaction pool state
 }
 
-func NewTxPool(client *CrossSporkClient, logger zerolog.Logger) *TxPool {
+func NewTxPool(
+	client *CrossSporkClient,
+	transactionsPublisher *models.Publisher,
+	logger zerolog.Logger,
+) *TxPool {
 	return &TxPool{
-		logger: logger.With().Str("component", "tx-pool").Logger(),
-		client: client,
-		pool:   &sync.Map{},
+		logger:      logger.With().Str("component", "tx-pool").Logger(),
+		client:      client,
+		txPublisher: transactionsPublisher,
+		pool:        &sync.Map{},
 	}
 }
 
@@ -49,6 +54,8 @@ func (t *TxPool) Send(
 	flowTx *flow.Transaction,
 	evmTx *gethTypes.Transaction,
 ) error {
+	t.txPublisher.Publish(evmTx) // publish pending transaction event
+
 	if err := t.client.SendTransaction(ctx, *flowTx); err != nil {
 		return err
 	}

services/requester/requester.go

@@ -113,6 +113,7 @@ func NewEVM(
 	signer crypto.Signer,
 	logger zerolog.Logger,
 	blocks storage.BlockIndexer,
+	txPool *TxPool,
 ) (*EVM, error) {
 	logger = logger.With().Str("component", "requester").Logger()
 	// check that the address stores already created COA resource in the "evm" storage path.
@@ -164,7 +165,7 @@ func NewEVM(
 		signer:            signer,
 		logger:            logger,
 		blocks:            blocks,
-		txPool:            NewTxPool(client, logger),
+		txPool:            txPool,
 		head:              head,
 		evmSigner:         evmSigner,
 		validationOptions: validationOptions,