backend

2026-05-26 19:26:33 +00:00 · 2025-07-25 11:10:44 +05:30
parent 4455b39267
commit 7e6f0d0b1e
32 changed files with 2093 additions and 15 deletions
@@ -0,0 +1,120 @@
+#!/usr/bin/env python3
+"""
+Deployment script for OpenLearnX smart contracts
+"""
+import os
+import json
+from pathlib import Path
+from web3 import Web3
+from eth_account import Account
+from dotenv import load_dotenv
+
+# Load environment variables from backend/.env
+BASE_DIR = Path(__file__).resolve().parent.parent
+load_dotenv(BASE_DIR / ".env")
+
+def deploy_contract():
+    # Load environment variables
+    provider_url = os.getenv('WEB3_PROVIDER_URL', 'http://127.0.0.1:8545')
+    private_key = os.getenv('DEPLOYER_PRIVATE_KEY')
+    
+    if not private_key:
+        raise ValueError("DEPLOYER_PRIVATE_KEY environment variable required")
+    
+    # Connect to Web3
+    w3 = Web3(Web3.HTTPProvider(provider_url))
+    
+    if not w3.is_connected():
+        raise Exception(f"Failed to connect to {provider_url}")
+    
+    account = Account.from_key(private_key)
+    
+    print(f"Deploying from account: {account.address}")
+    print(f"Balance: {w3.eth.get_balance(account.address) / 10**18} ETH")
+    
+    # Load contract bytecode and ABI
+    contract_path = BASE_DIR / "out" / "CertificateNFT.sol" / "CertificateNFT.json"
+    
+    if not contract_path.exists():
+        print("Contract not compiled. Running forge build...")
+        import subprocess
+        result = subprocess.run(["forge", "build"], cwd=BASE_DIR, capture_output=True, text=True)
+        if result.returncode != 0:
+            raise Exception(f"forge build failed: {result.stderr}")
+    
+    with open(contract_path, 'r') as f:
+        contract_data = json.load(f)
+    
+    # Deploy contract
+    contract = w3.eth.contract(
+        abi=contract_data['abi'],
+        bytecode=contract_data['bytecode']['object']
+    )
+    
+    # Build transaction with higher gas limit
+    transaction = contract.constructor().build_transaction({
+        'from': account.address,
+        'nonce': w3.eth.get_transaction_count(account.address),
+        'gas': 5000000,  # Increased gas limit
+        'gasPrice': w3.to_wei('20', 'gwei')
+    })
+    
+    # Sign and send transaction
+    signed_txn = w3.eth.account.sign_transaction(transaction, private_key)
+    tx_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)
+    
+    print(f"Transaction hash: {tx_hash.hex()}")
+    
+    # Wait for receipt with timeout
+    try:
+        receipt = w3.eth.wait_for_transaction_receipt(tx_hash, timeout=300)
+        
+        # Check if transaction was successful
+        if receipt.status == 0:
+            raise Exception("Transaction failed - check gas limit and contract code")
+        
+        contract_address = receipt.contractAddress
+        
+        if not contract_address:
+            raise Exception("Contract address is None - deployment failed")
+        
+        print(f"Contract deployed at: {contract_address}")
+        print(f"Gas used: {receipt.gasUsed}")
+        print(f"Transaction status: {'Success' if receipt.status == 1 else 'Failed'}")
+        
+    except Exception as e:
+        print(f"Error waiting for transaction receipt: {e}")
+        return None
+    
+    # Save deployment info
+    deployment_info = {
+        'contract_address': contract_address,
+        'transaction_hash': tx_hash.hex(),
+        'deployer': account.address,
+        'network': 'local' if 'localhost' in provider_url or '127.0.0.1' in provider_url else 'unknown',
+        'abi': contract_data['abi'],
+        'gas_used': receipt.gasUsed,
+        'block_number': receipt.blockNumber,
+        'status': receipt.status
+    }
+    
+    deployment_file = BASE_DIR / "deployment.json"
+    with open(deployment_file, 'w') as f:
+        json.dump(deployment_info, f, indent=2)
+    
+    print(f"Deployment info saved to: {deployment_file}")
+    print(f"\nAdd this to your .env file:")
+    print(f"CONTRACT_ADDRESS={contract_address}")
+    
+    return contract_address
+
+if __name__ == '__main__':
+    try:
+        contract_address = deploy_contract()
+        if contract_address:
+            print(f"\n✅ Deployment successful!")
+            print(f"Contract Address: {contract_address}")
+        else:
+            print(f"\n❌ Deployment failed!")
+    except Exception as e:
+        print(f"❌ Deployment failed: {e}")