通过Node.js中的AWS Lambda发送POST请求

时间:2019-01-03 17:24:02

标签: node.js aws-lambda alexa

当我的Alexa技能调用了Intent时,我想发送POST请求到Twilio。在测试代​​码时,没有错误,但是请求似乎没有通过。在Postman工程中测试POST请求。

function postToTwilio() {

var http = require("https");
var postData = JSON.stringify({
      'To' : '1234567',
      'From': '1234546',
      'Url': 'https://handler.twilio.com/twiml/blablabla',


  });

var options = {
  "method": "POST",
  "hostname": "https://api.twilio.com",
  "path": "/12344/Accounts/blablablablba/Calls.json",
  "headers": {
    "Authorization": "Basic blblablablablabla",
    "Content-Type": "application/x-www-form-urlencoded",
  }
};

var req = http.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function () {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });
});

req.write(postData);
req.end();

}

1 个答案:

答案 0 :(得分:1)

首先,请求是异步调用,因此您需要让alexa等待响应。

为此,您需要使用async await进程并使用promises。

var postData = JSON.stringify({
      'To' : '1234567',
      'From': '1234546',
      'Url': 'https://handler.twilio.com/twiml/blablabla',


  });

var options = {
  "method": "POST",
  "hostname": "https://api.twilio.com",
  "path": "/12344/Accounts/blablablablba/Calls.json",
  "headers": {
    "Authorization": "Basic blblablablablabla",
    "Content-Type": "application/x-www-form-urlencoded",
  }
};

function get(options) {
  return new Promise(((resolve, reject) => {
    const request = https.request(options, (response) => {
      response.setEncoding('utf8');
      let returnData = '';

      if (response.statusCode < 200 || response.statusCode >= 300) {
        return reject(new Error(`${response.statusCode}: ${response.req.getHeader('host')} ${response.req.path}`));
      }

      response.on('data', (chunk) => {
        returnData += chunk;
      });

      response.on('end', () => {
        resolve(JSON.parse(returnData));
      });

      response.on('error', (error) => {
        reject(error);
      });
    });
    request.write(postData)
    request.end();
  }));
}

然后,当您调用此get函数时:

let response = await get(options)

我还没有进行整体测试,但这是基本框架。

让我知道是否可行。