Nodemailer 错误处理 (Node.js) 无法按预期工作。即使 **name 输入字段** 为空，电子邮件仍然通过

Question

在前端(React(我可以做错误处理，但我也想在后端(Node.js(实现错误处理。我想我可以在transporter.sendMail上完成，但它不起作用。当name input字段为空时，它仍然通过Nodemailer发送电子邮件。我错过了什么？

const express = require('express');
const bodyParser = require('body-parser');
const nodemailer = require('nodemailer');
const cors = require('cors');
const creds = require('./config');
const app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cors());
app.post('/api/contact', (req, res) => {
const htmlEmail = `
Name: ${req.body.name}
Phone: ${req.body.phone}
Email: ${req.body.email}
`;
const mailOptions = {
from: req.body.name,
to: 'MYEMAIL',
subject: 'example message subject',
html: htmlEmail,
};
const transporter = nodemailer.createTransport({
host: 'smtp.ethereal.email',
port: 587,
auth: {
user: 'MYEMAIL',
pass: 'MYPASSWORD',
},
});
transporter.sendMail(mailOptions, (err, data) => {
if (err || req.body.name.length === 0) {
res.json({
status: 'fail',
});
console.log('Message could not be sent.');
return null;
} else {
res.json({
status: 'success',
});
console.log('Message sent.');
}
});
});
const PORT = process.env.PORT || 3001;
app.listen(PORT, () => {
console.log(`Server listening on port ${PORT}`);
});

Answer 1

您可以在执行任何类型的操作之前先检查req.body。就像下面的一样。

app.post('/api/contact', (req, res) => {
if(req.body.name.trim().length === 0) {
return res.status(400).json({error: "Name is required"});
}
.........