Simple module that wrap nodejs http.request api.

performRequest.js

"use strict";

const http = require('http');
const util = require('util');
const querystring = require('querystring');

function addQueryString(data) {
  return (data !== "") ? querystring.stringify(data) : '';
}

function performRequest(options, endpoint, method, data, success, error) {

  let dataString = JSON.stringify(data);

  options = Object.assign(options, {
    path: endpoint,
    method: method
  });

  if (!options.headers) {
    options.headers = {}
  }

  if (method == 'GET') {
    options.path = endpoint + addQueryString(data);

  } else {
    options.headers = Object.assign(options.headers, {
      'Content-Type': 'application/json',
      'Content-Length': Buffer.byteLength(dataString, 'utf-8')
    });

  }

  let req = http.request(options, (res) => {

    res.setEncoding('utf-8');

    let responseString = '';

    res.on('data', (chunk) => {
      console.log(`BODY: ${chunk}`);
      responseString += chunk;
    });

    res.on('end', () => {
      try {
        let responseObject = null;
        if (typeof responseString === 'string') {
          responseObject = JSON.parse(responseString);
        }
        success(responseObject);

      } catch (err) {
        console.log(`Catch error: ${err.message}`);
        error(err);
      }
    });
  });

  req.on('error', (e) => {
    console.log(`Problem with request: ${e.message}`);
    error(e);
  });

  if (method !== 'GET' && dataString) {
    req.write(dataString);
  }
  req.end();

}

module.exports = performRequest;