Create useBlockchain.js

dapps-builder/src/hooks/useBlockchain.js

@@ -0,0 +1,49 @@
+import { useState, useEffect } from 'react';
+import BlockchainService from '../services/BlockchainService';
+
+const useBlockchain = (abi, contractAddress) => {
+    const [accounts, setAccounts] = useState([]);
+    const [networkId, setNetworkId] = useState(null);
+    const [error, setError] = useState(null);
+    const [contract, setContract] = useState(null);
+
+    useEffect(() => {
+        const initBlockchain = async () => {
+            try {
+                const accounts = await BlockchainService.getAccounts();
+                const networkId = await BlockchainService.getNetworkId();
+                setAccounts(accounts);
+                setNetworkId(networkId);
+                setContract(new BlockchainService(abi, contractAddress));
+            } catch (err) {
+                setError(err.message);
+            }
+        };
+
+        initBlockchain();
+    }, [abi, contractAddress]);
+
+    const callMethod = async (method, args) => {
+        if (!contract) {
+            throw new Error('Contract not initialized.');
+        }
+        return await contract.callMethod(method, args);
+    };
+
+    const sendMethod = async (method, args, from) => {
+        if (!contract) {
+            throw new Error('Contract not initialized.');
+        }
+        return await contract.sendMethod(method, args, from);
+    };
+
+    return {
+        accounts,
+        networkId,
+        error,
+        callMethod,
+        sendMethod,
+    };
+};
+
+export default useBlockchain;