Update app.py

app.py

@@ -6,6 +6,7 @@ from solders.pubkey import Pubkey
 from solana.rpc.api import Client
 from solders.transaction import Transaction
 from solders.system_program import TransferParams, transfer
+from solana.rpc.types import TxOpts
 import base58
 import hashlib
 import os
@@ -15,11 +16,8 @@ from fastapi.concurrency import run_in_threadpool
 
 
 
-    
-
-
 app = FastAPI()
-solana_client = Client("https://api.devnet.solana.com")
+solana_client = Client("https://mainnet.helius-rpc.com/?api-key=4e833ada-d32c-48c5-b020-c11b2253f25b")
 
 seed_text="shellinfo"
 seed = hashlib.sha256(seed_text.encode()).digest()
@@ -27,6 +25,11 @@ SERVER_KEY = Keypair.from_seed(seed)
 
 
 
+class TransactionPayload(BaseModel):
+    signed_hex: str
+
+
+
 
 
 
@@ -219,3 +222,32 @@ async def sign_message(payload: dict):
 
 
 
+
+@app.post("/relay/broadcast/solana")
+async def broadcast_transaction(payload: TransactionPayload, request: Request):
+    """
+    Receives a pre-signed transaction, strips identifying headers and broadcasts to the Solana mainnet.
+    """
+    try:
+        
+        raw_tx = base64.b64decode(payload.signed_hex)
+
+        response = solana_client.send_raw_transaction(raw_tx,opts=TxOpts(skip_preflight=False))
+
+        if not response.value:
+            raise HTTPException(status_code=400, detail="Broadcast failed: No signature returned")
+
+        return {
+            "success": True,
+            "signature": str(response.value),
+            "status": "Broadcasted via Relay"
+        }
+
+    except Exception as e:
+        print(f"Relay Error: {str(e)}")
+        return {
+            "success": False,
+            "signature": '',
+            "status": "Failed"
+        }
+