/Javascript/Node.js/NodeJS: Good way to write Multiple API Calls in serial

NodeJS: Good way to write Multiple API Calls in serial

  var request = require('request');

  request('http://www.test.com/api1', function (error, response, body) {
    if (!error && response.statusCode == 200) {

      request('http://www.test.com/api1', function (error, response, body) {
        if (!error && response.statusCode == 200) {

          request('http://www.test.com/api1', function (error, response, body) {
            if (!error && response.statusCode == 200) {

              //And so on...

            }
          })

        }
      })

    }
  })


//2 Next Solution
Depending on which version of node you are using, promises should be native...

https://nodejs.org/en/blog/release/v4.0.0/

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise

var request = require('request');

getRequest('http://www.test.com/api1').then(function (body1) {
    // do something with body1
    return getRequest('http://www.test.com/api2');
}).then(function (body2) {
    // do something with body2
    return getRequest('http://www.test.com/api3');
}).then(function (body3) {
    // do something with body3
    //And so on...
});

function getRequest(url) {
    return new Promise(function (success, failure) {
        request(url, function (error, response, body) {
            if (!error && response.statusCode == 200) {
                success(body);
            } else {
                failure(error);
            }
        });
    });
}

Source: stackoverflow.com

Similar codes

0 vote364 views2 answers
Call node js function from javascript
Javascript Node.js
1 vote376 views2 answers
How ot send user agent in nodejs https header
Javascript Node.js
0 vote333 views1 answer
Express login api
Javascript Node.js
21 votes373 views3 answers
Node js fetch
Javascript Node.js
0 vote344 views1 answer
Run on localhost node js
Javascript Node.js
1 vote362 views1 answer
Try catch in node js
Javascript Node.js
0 vote333 views1 answer
Nodejs convert buffer to uint8array
Javascript Node.js
0 vote321 views1 answer
Node js validate body without middleware
Javascript Node.js
0 vote350 views1 answer
Node js run bat file
Javascript Node.js
4 votes342 views6 answers
Node js kill process
Javascript Node.js