ReferenceError:请求未定义 [英] ReferenceError: request is not defined

问题描述

我正在尝试复制 facebook Messenger机器人，但请保留未定义请求.

Im trying to replicate a facebook messenger bot but keep getting request is not defined.

与Facebook相同的代码:

Same code as facebook:

function callSendAPI(messageData) {
  request({
    uri: 'https://graph.facebook.com/v2.6/me/messages',
    qs: { access_token: PAGE_ACCESS_TOKEN },
    method: 'POST',
    json: messageData

  }, function (error, response, body) {
    if (!error && response.statusCode == 200) {
      var recipientId = body.recipient_id;
      var messageId = body.message_id;

      console.log("Successfully sent generic message with id %s to recipient %s", 
        messageId, recipientId);
    } else {
      console.error("Unable to send message.");
      console.error(response);
      console.error(error);
    }
  });  
}

我的节点 server.js 看起来像这样:

My node server.js looks like this:

const express = require('express');
const bodyParser = require('body-parser');
//const request = express.request;
const PAGE_ACCESS_TOKEN = 'abc';

let app = express();

app.use(bodyParser.urlencoded({ extended: false }));

// parse application/json
app.use(bodyParser.json());

[...]

function sendTextMessage(recipientId, messageText) {
  var messageData = {
    recipient: {
      id: recipientId
    },
    message: {
      text: messageText
    }
  };

  callSendAPI(messageData);
}

function callSendAPI(messageData) {..}

[...]

我是否缺少Express的东西?谢谢

Am I missing something with express? Thanks

推荐答案

此示例使用了第三-方请求模块.

您还可以使用原生请求，例如: require('http').request()，如果愿意的话，但是我想说 request 模块非常常见，并且是一个很好的使用工具.

You could also use the native request like so: require('http').request(), if you want to, but I would say, that the request module is very common, and a good tool to use.

您的 request 指向 express.request .如果像 request()这样使用，则会抛出错误，因为它不是函数.因此，您应该真正使用Request模块，或调整代码以使用本机 http.request .

Your request, which is commented out, points to express.request. If used like request() will throw an error, since it's not a function. So, you should really use the Request module, or adjust the code to use native http.request.

现在不建议使用请求模块，因此，如果您正在阅读此答案，请使用本机模块或查找流行的第三方库，例如Axios或其他.

The request module is deprecated now, so if you are reading this answer, use the native module or find a popular third-party library like Axios or others.

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