Node.js应用中Mailchimp API 401认证错误的排查与解决

statusCode: 401,
status: 401,
statusType: 4,
info: false,
ok: false,
redirect: false,
clientError: true,
serverError: false,
error: Error: cannot POST /3.0/lists/2fdb4c478c/members (401)
...
text: `{"type":"https://mailchimp.com/developer/marketing/docs/errors/","title":"API Key Invalid","status":401,"detail":"Your API key may be invalid, or you've attempted to access the wrong datacenter.","instance":"f3a563bb-dd44-b74d-5205-85cfc4177baf"}`,
...
unauthorized: true,

mailchimp.setConfig({
 apiKey: "7825a331ceaec9fa7c606108d9eee46d-us21", // 错误：API Key中包含了服务器前缀
 server: "us21"
});

// Setting up MailChimp
mailchimp.setConfig({
 // 请确保这里的apiKey只包含API密钥本身，不包含服务器前缀
 apiKey: "7825a331ceaec9fa7c606108d9eee46d", 
 // 服务器前缀，与API密钥的后缀匹配
 server: "us21" 
});

// ... (之前的代码)

// Running the function and catching the errors (if any)
run().catch(e => {
  console.error("Mailchimp API Error:", e); // 打印详细错误信息到控制台
  res.sendFile(__dirname + "/failure.html");
});

const mailchimp = require("@mailchimp/mailchimp_marketing");
const express = require("express");
const bodyParser = require("body-parser");
const app = express();

app.use(bodyParser.urlencoded({extended:true}));
app.use(express.static("public"));

app.listen(process.env.PORT || 3000, function () {
 console.log("Server is running at port 3000");
});

app.get("/", function (req, res) {
 res.sendFile(__dirname + "/signup.html");
});

// Setting up MailChimp configuration
// IMPORTANT: Ensure API Key and Server Prefix are correctly separated
mailchimp.setConfig({
 // 请替换为您的实际API密钥，不包含服务器前缀
 apiKey: "YOUR_ACTUAL_MAILCHIMP_API_KEY_WITHOUT_SERVER_PREFIX", 
 // 请替换为您的实际服务器前缀（例如：us21）
 server: "YOUR_MAILCHIMP_SERVER_PREFIX" 
});

app.post("/", function (req,res) {
 const firstName = req.body.fName;
 const lastName = req.body.lName;
 const email = req.body.email;
 // 请替换为您的实际Mailchimp列表ID
 const listId = "YOUR_MAILCHIMP_LIST_ID"; 

 const subscribingUser = {
  firstName: firstName,
  lastName: lastName,
  email: email
 };

 async function run() {
  const response = await mailchimp.lists.addListMember(listId, {
   email_address: subscribingUser.email,
   status: "subscribed",
   merge_fields: {
    FNAME: subscribingUser.firstName,
    LNAME: subscribingUser.lastName
   }
  });

  console.log(
     `Successfully added contact as an audience member. The contact's id is ${
       response.id
     }.`
   );
  res.sendFile(__dirname + "/success.html"); // 成功后发送成功页面
 }

 // Running the function and catching the errors (if any)
 run().catch(e => {
   console.error("Mailchimp API Error:", e); // 打印详细错误信息
   // 根据错误类型可以进一步细化错误页面或消息
   res.sendFile(__dirname + "/failure.html"); // 失败后发送失败页面
 });
});