Create cross_chain_service.py

backend/app/services/cross_chain_service.py

@@ -0,0 +1,131 @@
+import requests
+import json
+import logging
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+class CrossChainService:
+    def __init__(self, blockchain_configs):
+        """
+        Initialize the CrossChainService with configurations for different blockchains.
+        
+        :param blockchain_configs: A dictionary containing blockchain configurations.
+        """
+        self.blockchain_configs = blockchain_configs
+
+    def get_blockchain_data(self, blockchain_name, endpoint, params=None):
+        """
+        Fetch data from a specified blockchain.
+
+        :param blockchain_name: The name of the blockchain to query.
+        :param endpoint: The API endpoint to call.
+        :param params: Optional parameters for the API call.
+        :return: The response data from the blockchain.
+        """
+        if blockchain_name not in self.blockchain_configs:
+            logger.error("Blockchain configuration for '%s' not found.", blockchain_name)
+            raise ValueError("Invalid blockchain name")
+
+        url = f"{self.blockchain_configs[blockchain_name]['base_url']}/{endpoint}"
+        try:
+            logger.info("Fetching data from %s: %s", blockchain_name, url)
+            response = requests.get(url, params=params)
+            response.raise_for_status()
+            logger.info("Data fetched successfully from %s", blockchain_name)
+            return response.json()
+        except Exception as e:
+            logger.error("Error fetching data from %s: %s", blockchain_name, e)
+            raise
+
+    def transfer_assets(self, from_chain, to_chain, asset_data):
+        """
+        Transfer assets from one blockchain to another.
+
+        :param from_chain: The name of the source blockchain.
+        :param to_chain: The name of the destination blockchain.
+        :param asset_data: A dictionary containing asset transfer details.
+        :return: The transaction result.
+        """
+        if from_chain not in self.blockchain_configs or to_chain not in self.blockchain_configs:
+            logger.error("Invalid blockchain names: %s, %s", from_chain, to_chain)
+            raise ValueError("Invalid blockchain names")
+
+        # Example of transferring assets (this will vary based on the blockchain)
+        from_url = self.blockchain_configs[from_chain]['base_url'] + '/transfer'
+        to_url = self.blockchain_configs[to_chain]['base_url'] + '/receive'
+
+        try:
+            logger.info("Initiating asset transfer from %s to %s", from_chain, to_chain)
+            # Step 1: Transfer from the source blockchain
+            transfer_response = requests.post(from_url, json=asset_data)
+            transfer_response.raise_for_status()
+            transfer_result = transfer_response.json()
+
+            # Step 2: Receive on the destination blockchain
+            receive_response = requests.post(to_url, json=transfer_result)
+            receive_response.raise_for_status()
+            logger.info("Asset transfer completed successfully.")
+            return receive_response.json()
+        except Exception as e:
+            logger.error("Error during asset transfer: %s", e)
+            raise
+
+    def get_transaction_status(self, blockchain_name, tx_id):
+        """
+        Get the status of a transaction on a specified blockchain.
+
+        :param blockchain_name: The name of the blockchain to query.
+        :param tx_id: The transaction ID to check.
+        :return: The transaction status.
+        """
+        endpoint = f"transaction/{tx_id}/status"
+        return self.get_blockchain_data(blockchain_name, endpoint)
+
+# Example usage
+if __name__ == "__main__":
+    # Example blockchain configurations
+    blockchain_configs = {
+        "Ethereum": {
+            "base_url": "https://api.etherscan.io/api"
+        },
+        "BinanceSmartChain": {
+            "base_url": "https://api.bscscan.com/api"
+        }
+    }
+
+    service = CrossChainService(blockchain_configs)
+
+    # Fetching data from Ethereum
+    try:
+        eth_data = service.get_blockchain_data("Ethereum", "stats")
+        print("Ethereum Data:", eth_data)
+    except Exception as e:
+        print("Error fetching Ethereum data:", e)
+
+    # Example asset transfer
+    asset_data = {
+        "from": "0xYourEthereumAddress",
+        "to": "0xYourBSCAddress",
+        "amount": 1.0,
+        "token": "ETH"
+    }
+    try:
+        transfer_result = service.transfer_assets("Ethereum", "BinanceSmartChain", asset_data)
+        print("Transfer Result:", transfer_result)
+    except Exception as e:
+        print("Error during asset transfer:", e)
+
+    # Checking transaction status
+    try:
+        tx_status = service.get_transaction_status(" Ethereum", "0xYourTransactionID")
+        print("Transaction Status:", tx_status)
+    except Exception as e:
+        print("Error fetching transaction status:", e) ```python
+    # Example of checking transaction status
+    try:
+        tx_status = service.get_transaction_status("Ethereum", "0xYourTransactionID")
+        print("Transaction Status:", tx_status)
+    except Exception as e:
+        print("Error fetching transaction status:", e)