initial commit

examples/basic-usage.ts

@@ -0,0 +1,103 @@
+#!/usr/bin/env ts-node
+
+/**
+ * Basic usage example for SMTP over WebSocket client
+ */
+
+import { SMTPOverWSClient, MessagePriority } from '../src/index';
+
+async function basicUsageExample() {
+    console.log('Starting SMTP WebSocket Client Basic Example\n');
+
+    // Create client with basic configuration
+    const client = new SMTPOverWSClient({
+        url: 'ws://localhost:3000/smtp', // Replace with your server URL
+        apiKey: 'your-api-key-here',    // Replace with your API key
+        debug: true,
+        reconnectInterval: 5000,
+        maxReconnectAttempts: 3
+    });
+
+    // Set up event listeners
+    client.on('connected', () => {
+        console.log('Connected to WebSocket server');
+    });
+
+    client.on('authenticated', () => {
+        console.log('Authentication successful');
+    });
+
+    client.on('disconnected', (reason) => {
+        console.log(`Disconnected: ${reason || 'Unknown reason'}`);
+    });
+
+    client.on('error', (error) => {
+        console.error('Client error:', error.message);
+    });
+
+    client.on('messageQueued', (messageId, queueSize) => {
+        console.log(`Message ${messageId} queued (Queue size: ${queueSize})`);
+    });
+
+    client.on('messageProcessed', (messageId, responseTime) => {
+        console.log(`Message ${messageId} processed in ${responseTime}ms`);
+    });
+
+    try {
+        console.log('Sending SMTP commands...\n');
+
+        // Send basic SMTP sequence
+        const ehloResponse = await client.sendSMTPCommand('EHLO example.com\r\n');
+        console.log('EHLO Response:', ehloResponse.trim());
+
+        const mailFromResponse = await client.sendSMTPCommand('MAIL FROM: <sender@example.com>\r\n');
+        console.log('MAIL FROM Response:', mailFromResponse.trim());
+
+        const rcptToResponse = await client.sendSMTPCommand('RCPT TO: <recipient@example.com>\r\n');
+        console.log('RCPT TO Response:', rcptToResponse.trim());
+
+        const dataResponse = await client.sendSMTPCommand('DATA\r\n');
+        console.log('DATA Response:', dataResponse.trim());
+
+        // Send email content
+        const emailContent = `From: sender@example.com\r\nTo: recipient@example.com\r\nSubject: Test Email\r\n\r\nThis is a test email.\r\n.\r\n`;
+        const contentResponse = await client.sendSMTPCommand(emailContent);
+        console.log('Content Response:', contentResponse.trim());
+
+        const quitResponse = await client.sendSMTPCommand('QUIT\r\n');
+        console.log('QUIT Response:', quitResponse.trim());
+
+        console.log('\nAll SMTP commands sent successfully!');
+
+        // Display statistics
+        const stats = client.getStats();
+        console.log('\nClient Statistics:');
+        console.log(`   Messages Queued: ${stats.messagesQueued}`);
+        console.log(`   Messages Processed: ${stats.messagesProcessed}`);
+        console.log(`   Messages Failed: ${stats.messagesFailed}`);
+        console.log(`   Average Response Time: ${stats.averageResponseTime.toFixed(2)}ms`);
+        console.log(`   Connection Uptime: ${stats.connectionUptime}ms`);
+
+    } catch (error) {
+        console.error('Error during SMTP communication:', error);
+    } finally {
+        console.log('\nShutting down client...');
+        await client.shutdown();
+        console.log('Client shutdown complete');
+    }
+}
+
+// Run the example
+if (require.main === module) {
+    basicUsageExample()
+        .then(() => {
+            console.log('\nBasic usage example completed successfully');
+            process.exit(0);
+        })
+        .catch((error) => {
+            console.error('\nExample failed:', error);
+            process.exit(1);
+        });
+}
+
+export { basicUsageExample };