Mailchimp订阅者标签动态分配：基于表单下拉选择的实现教程

<form action="/" method="post">
    <div class="mb-3">
        <label for="firstName" class="form-label">名</label>
        <input type="text" class="form-control" id="firstName" name="firstName" required>
    </div>
    <div class="mb-3">
        <label for="lastName" class="form-label">姓</label>
        <input type="text" class="form-control" id="lastName" name="lastName" required>
    </div>
    <div class="mb-3">
        <label for="email" class="form-label">邮箱</label>
        <input type="email" class="form-control" id="email" name="email" required>
    </div>

    <div class="dropdown me-1 mb-3">
        <label for="dropDown" class="form-label">选择您的兴趣</label>
        <select name="dropDown" id="dropDown" class="form-select">
            <option value="" selected disabled>请选择一个选项</option> <!-- 默认禁用选项 -->
            <option value="B2B">企业对企业 (Business to Business)</option>
            <option value="B2C">企业对消费者 (Business to Consumer)</option>
        </select>
    </div>
    <button type="submit" class="btn btn-primary">订阅</button>
</form>

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

// 配置body-parser来解析表单数据
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static("public")); // 如果有静态文件，例如CSS/JS
app.set('view engine', 'ejs'); // 设置模板引擎

// GET 请求用于渲染表单页面
app.get('/', (req, res) => {
  res.render('index'); // 假设您的EJS文件名为index.ejs
});

// POST 请求用于处理表单提交
app.post('/', (req, res) => {
  var firstName = req.body.firstName;
  var lastName = req.body.lastName;
  var email = req.body.email;
  let selectedTag = req.body.dropDown; // 获取下拉菜单的选中值

  // 构造Mailchimp API所需的数据对象
  var mailchimpData = {
    status: "active", // 订阅状态
    members: [
      {
        email_address: email,
        status: "subscribed", // 订阅状态
        merge_fields: {
          FNAME: firstName,
          LNAME: lastName,
        },
        tags: [selectedTag], // 将获取到的标签动态添加到tags数组中
      }
    ],
  };

  // 模拟发送数据到Mailchimp API (实际应用中需要使用Mailchimp API客户端或HTTP请求库)
  console.log("即将发送到Mailchimp的数据：", mailchimpData);

  // 在实际应用中，这里会进行Mailchimp API调用
  // 例如：
  /*
  const client = require("@mailchimp/mailchimp_marketing");
  client.setConfig({
    apiKey: "YOUR_MAILCHIMP_API_KEY",
    server: "YOUR_MAILCHIMP_SERVER_PREFIX", // 例如 "us1"
  });

  async function run() {
    try {
      const response = await client.lists.batchListMembers("YOUR_LIST_ID", mailchimpData);
      console.log(response);
      res.render('success'); // 订阅成功页面
    } catch (error) {
      console.error(error);
      res.render('failure'); // 订阅失败页面
    }
  }
  run();
  */

  res.send(`用户 ${firstName} ${lastName} (${email}) 已选择标签：${selectedTag}，并已处理订阅请求。`);
});

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`服务器运行在 http://localhost:${PORT}`);
});