Create DEXFrontend.js

frontend/DEXFrontend.js

@@ -0,0 +1,53 @@
+import Web3 from 'web3';
+import { DEXContract } from './DEXContract.json';
+
+const web3 = new Web3(window.ethereum);
+
+const dexContract = new web3.eth.Contract(
+  DEXContract.abi,
+  '0x...DEXContractAddress...'
+);
+
+// Function to set the exchange rate for a token pair
+async function setExchangeRate(tokenIn, tokenOut, rate) {
+  try {
+    const tx = await dexContract.methods.setExchangeRate(tokenIn, tokenOut, rate).send({
+      from: web3.eth.accounts[0],
+    });
+    console.log(`Exchange rate set: ${tx.transactionHash}`);
+  } catch (error) {
+    console.error(`Error setting exchange rate: ${error.message}`);
+  }
+}
+
+// Function to execute a trade
+async function trade(tokenIn, tokenOut, amountIn) {
+  try {
+    const tx = await dexContract.methods.trade(tokenIn, tokenOut, amountIn).send({
+      from: web3.eth.accounts[0],
+    });
+    console.log(`Trade executed: ${tx.transactionHash}`);
+  } catch (error) {
+    console.error(`Error executing trade: ${error.message}`);
+  }
+}
+
+// Function to get trade details
+async function getTrade(index) {
+  try {
+    const trade = await dexContract.methods.getTrade(index).call();
+    console.log(`Trade details: ${JSON.stringify(trade)}`);
+  } catch (error) {
+    console.error(`Error getting trade details: ${error.message}`);
+  }
+}
+
+// Function to get the number of trades
+async function getTradeCount() {
+  try {
+    const count = await dexContract.methods.getTradeCount().call();
+    console.log(`Number of trades: ${count}`);
+  } catch (error) {
+    console.error(`Error getting trade count: ${error.message}`);
+  }
+}