Testing a simple GET request from NodeJS

Question

For testing purpose,I want to call a method (that does GET request) as soon as the server is created. I have the below code.

var rp = require('request-promise');
var http = require('http');

var URLSplunk = MY_URL

var headersSplunk = {
    'Authorization': 'Bearer MY_AUTH',
    'Cache-Control': 'no-cache',
    'X-Requested-By': 'BABEL_FISH',
    'client': 'slack'
};

function testSplunk(){
  var optionsSplunk = {
      url: URLSplunk,
      headers: headersSplunk,
      json: true
  };

  rp(optionsSplunk)
      .then(function (resultReply) {
        console.log("Splunk GET success")
        console.log(resultReply)
      })
      .catch(function (error) {
          console.log(`Error: \n${error}`);
      });

}

http.createServer(function (request, response) {
    testSplunk()
}).listen(3000);

console.log('Server started');

I was expecting to see the GET result or error but I only see 'Server started' message.

What am I missing?

Answer 1

My comment echo'd in greater detail by @jfiend00.

The way you have the code now, your testSplunk() function will get called only when your http server gets a request. It's inside the http server requestListener callback. So, you have to send the http server a request to trigger that callback so the testSplunk() function gets called.

The testSplunt() function is never being called by the program until a request is made to the server.

Putting it after the requestListener callback will allow for it to be executed in the manner that you want it to be.

E.g.

http.createServer(function (request, response) {
    //This function is called when the server gets a request
    //Process request.......
}).listen(3000);

testSplunk();

console.log('Server started');