Switch to SendGrid API for email sending (SMTP blocked on HF Spaces)

package.json

@@ -7,6 +7,7 @@
     "start": "node server.js"
   },
   "dependencies": {
+    "@sendgrid/mail": "^8.1.3",
     "cloudinary": "^1.41.0",
     "cors": "^2.8.5",
     "dotenv": "^16.3.1",

server.js

@@ -4,6 +4,7 @@ const crypto = require('crypto');
 const cors = require('cors');
 const https = require('https');
 const cloudinary = require('cloudinary').v2;
+const sgMail = require('@sendgrid/mail');
 require('dotenv').config({ path: process.cwd() + '/.env' });
 
 const app = express();
@@ -19,18 +20,9 @@ cloudinary.config({
 
 console.log('Cloudinary configured with cloud_name:', process.env.CLOUDINARY_CLOUD_NAME);
 
-// Configuration Nodemailer
-const transporter = nodemailer.createTransport({
-  host: 'smtp.gmail.com',
-  port: 465,
-  secure: true, // true for 465, false for 587
-  auth: {
-    user: process.env.EMAIL_USER,
-    pass: process.env.EMAIL_PASS
-  }
-});
-
-console.log('Nodemailer transporter created for user:', process.env.EMAIL_USER);
+// Configuration SendGrid
+sgMail.setApiKey(process.env.SENDGRID_API_KEY);
+console.log('SendGrid configured');
 
 // Stockage temporaire des OTP
 const otpStore = new Map();
@@ -111,13 +103,13 @@ app.post('/register', async (req, res) => {
   otpStore.set(email, { otp, expires: Date.now() + 5 * 60 * 1000 });
 
   try {
-    console.log('Sending OTP email to:', email);
-    await transporter.sendMail({
-      from: process.env.EMAIL_USER,
+    const msg = {
       to: email,
+      from: process.env.EMAIL_USER,
       subject: 'Code de vérification - Inscription',
       text: `Votre code de vérification est: ${otp}`
-    });
+    };
+    await sgMail.send(msg);
     console.log('OTP email sent successfully for registration');
     res.json({ message: 'Code envoyé à votre email' });
   } catch (error) {
@@ -143,13 +135,13 @@ app.post('/login', async (req, res) => {
   otpStore.set(email, { otp, expires: Date.now() + 5 * 60 * 1000 });
 
   try {
-    console.log('Sending login OTP email to:', email);
-    await transporter.sendMail({
-      from: process.env.EMAIL_USER,
+    const msg = {
       to: email,
+      from: process.env.EMAIL_USER,
       subject: 'Code de vérification - Connexion',
       text: `Votre code de vérification est: ${otp}`
-    });
+    };
+    await sgMail.send(msg);
     console.log('Login OTP email sent successfully');
     res.json({ message: 'Code envoyé à votre email' });
   } catch (error) {
@@ -198,20 +190,20 @@ app.post('/send-notification', async (req, res) => {
     }
 
     // Configuration de l'email
-    const mailOptions = {
-      from: process.env.EMAIL_USER,
+    const msg = {
       to: to,
+      from: process.env.EMAIL_USER,
       subject: subject,
       html: html
     };
 
     // Envoi de l'email
-    const info = await transporter.sendMail(mailOptions);
-    console.log('Email de notification envoyé:', info.messageId);
+    const result = await sgMail.send(msg);
+    console.log('Email de notification envoyé:', result[0].statusCode);
 
     res.json({ 
       message: 'Notification envoyée avec succès',
-      messageId: info.messageId,
+      statusCode: result[0].statusCode,
       action_type,
       entity_type,
       entity_id,