将用户输入从IBM Watson Assistant发送到数据库或通过电子邮件发送

const express = require('express');
const bodyParser = require('body-parser');
const nodemailer = require('nodemailer');
const mysql = require('mysql');

const app = express();
app.use(bodyParser.json());

// 处理来自IBM Watson Assistant的Webhook请求
app.post('/webhook', (req, res) => {
  const userInput = req.body.input.text;

  // 将用户输入保存到数据库
  saveToDatabase(userInput);

  // 发送电子邮件
  sendEmail(userInput);

  // 返回响应给IBM Watson Assistant
  res.json({});

});

// 保存用户输入到数据库
function saveToDatabase(userInput) {
  const connection = mysql.createConnection({
    host: '数据库主机地址',
    user: '数据库用户名',
    password: '数据库密码',
    database: '数据库名称'
  });

  connection.connect();

  const query = `INSERT INTO user_inputs (input) VALUES ('${userInput}')`;

  connection.query(query, (error, results, fields) => {
    if (error) throw error;
    console.log('用户输入已保存到数据库');
  });

  connection.end();
}

// 发送电子邮件
function sendEmail(userInput) {
  const transporter = nodemailer.createTransport({
    service: '邮件服务提供商',
    auth: {
      user: '发件人邮箱',
      pass: '发件人邮箱密码'
    }
  });

  const mailOptions = {
    from: '发件人邮箱',
    to: '收件人邮箱',
    subject: '用户输入',
    text: userInput
  };

  transporter.sendMail(mailOptions, (error, info) => {
    if (error) throw error;
    console.log('用户输入已发送到电子邮件');
  });
}

// 启动后端服务
app.listen(3000, () => {
  console.log('后端服务已启动');
});