fix: retry send_transaction

learning-examples/manual_buy.py

@@ -125,15 +125,12 @@ async def buy_token(
 
         # Calculate maximum SOL to spend with slippage
         max_amount_lamports = int(amount_lamports * (1 + slippage))
-        for attempt in range(max_retries):
+
-            try:
         accounts = [
             AccountMeta(pubkey=PUMP_GLOBAL, is_signer=False, is_writable=False),
             AccountMeta(pubkey=PUMP_FEE, is_signer=False, is_writable=True),
             AccountMeta(pubkey=mint, is_signer=False, is_writable=False),
-                    AccountMeta(
+            AccountMeta(pubkey=bonding_curve, is_signer=False, is_writable=True),
-                        pubkey=bonding_curve, is_signer=False, is_writable=True
-                    ),
             AccountMeta(
                 pubkey=associated_bonding_curve,
                 is_signer=False,
@@ -144,12 +141,8 @@ async def buy_token(
                 is_signer=False,
                 is_writable=True,
             ),
-                    AccountMeta(
+            AccountMeta(pubkey=payer.pubkey(), is_signer=True, is_writable=True),
-                        pubkey=payer.pubkey(), is_signer=True, is_writable=True
+            AccountMeta(pubkey=SYSTEM_PROGRAM, is_signer=False, is_writable=False),
-                    ),
-                    AccountMeta(
-                        pubkey=SYSTEM_PROGRAM, is_signer=False, is_writable=False
-                    ),
             AccountMeta(
                 pubkey=SYSTEM_TOKEN_PROGRAM, is_signer=False, is_writable=False
             ),
@@ -157,9 +150,7 @@ async def buy_token(
             AccountMeta(
                 pubkey=PUMP_EVENT_AUTHORITY, is_signer=False, is_writable=False
             ),
-                    AccountMeta(
+            AccountMeta(pubkey=PUMP_PROGRAM, is_signer=False, is_writable=False),
-                        pubkey=PUMP_PROGRAM, is_signer=False, is_writable=False
-                    ),
         ]
 
         discriminator = struct.pack("<Q", 16927863322537952870)
@@ -173,26 +164,28 @@ async def buy_token(
             payer.pubkey(), payer.pubkey(), mint
         )
         msg = Message(
-                    [set_compute_unit_price(1_000), idempotent_ata_ix, buy_ix],
+            [set_compute_unit_price(1_000), idempotent_ata_ix, buy_ix], payer.pubkey()
-                    payer.pubkey(),
         )
+        recent_blockhash = await client.get_latest_blockhash()
+        opts = TxOpts(skip_preflight=True, preflight_commitment=Confirmed)
+
+        for attempt in range(max_retries):
+            try:
                 tx_buy = await client.send_transaction(
                     Transaction(
                         [payer],
                         msg,
-                        (await client.get_latest_blockhash()).value.blockhash,
+                        recent_blockhash.value.blockhash,
                     ),
-                    opts=TxOpts(skip_preflight=True, preflight_commitment=Confirmed),
+                    opts=opts,
                 )
-
+                tx_hash = tx_buy.value
                 print(
-                    f"Transaction sent: https://explorer.solana.com/tx/{tx_buy.value}"
+                    f"Transaction sent: https://explorer.solana.com/tx/{tx_hash}"
                 )
-
+                await client.confirm_transaction(tx_hash, commitment="confirmed", sleep_seconds=1)
-                await client.confirm_transaction(tx_buy.value, commitment="confirmed")
                 print("Transaction confirmed")
                 return  # Success, exit the function
-
             except Exception as e:
                 print(f"Attempt {attempt + 1} failed: {str(e)[:50]}")
                 if attempt < max_retries - 1:
@@ -203,6 +196,7 @@ async def buy_token(
                     print("Max retries reached. Unable to complete the transaction.")
 
 
+
 def load_idl(file_path):
     with open(file_path) as f:
         return json.load(f)

learning-examples/manual_sell.py

@@ -157,9 +157,6 @@ async def sell_token(
         print(f"Selling {token_balance_decimal} tokens")
         print(f"Minimum SOL output: {min_sol_output / LAMPORTS_PER_SOL:.10f} SOL")
 
-        # Continue with the sell transaction
-        for attempt in range(max_retries):
-            try:
         accounts = [
             AccountMeta(pubkey=PUMP_GLOBAL, is_signer=False, is_writable=False),
             AccountMeta(pubkey=PUMP_FEE, is_signer=False, is_writable=True),
@@ -208,21 +205,24 @@ async def sell_token(
         sell_ix = Instruction(PUMP_PROGRAM, data, accounts)
 
         msg = Message([set_compute_unit_price(1_000), sell_ix], payer.pubkey())
+        recent_blockhash = await client.get_latest_blockhash()
+        opts = TxOpts(skip_preflight=True, preflight_commitment=Confirmed)
+        # Continue with the sell transaction
+        for attempt in range(max_retries):
+            try:
                 tx = await client.send_transaction(
                     Transaction(
                         [payer],
                         msg,
-                        (await client.get_latest_blockhash()).value.blockhash,
+                        recent_blockhash.value.blockhash,
                     ),
-                    opts=TxOpts(skip_preflight=True, preflight_commitment=Confirmed),
+                    opts=opts,
                 )
-
+                tx_hash = tx.value
-                print(f"Transaction sent: https://explorer.solana.com/tx/{tx.value}")
+                print(f"Transaction sent: https://explorer.solana.com/tx/{tx_hash}")
-
+                await client.confirm_transaction(tx_hash, commitment="confirmed", sleep_seconds=1)
-                await client.confirm_transaction(tx.value, commitment="confirmed")
                 print("Transaction confirmed")
                 return  # Success, exit the function
-
             except Exception as e:
                 print(f"Attempt {attempt + 1} failed: {e!s}")
                 if attempt < max_retries - 1: