HTTP POST Google Cloud Functions NodeJS

Question

How do I write a Google Cloud Function that will receive a HTTP request and then send a HTTP POST request to a different endpoint?

For example,

I can send the HTTP trigger to my cloud function (https://us-central1-plugin-check-xxxx.cloudfunctions.net/test). I am using exports.test = function helloWorld(req, res){} to process the data received.
And then I want to send the processed data with a HTTP POST request to a different endpoint.

By far I have tried sending HTTP POST with node-webhooks, request & restler modules but none of them seem to work. Is it because these modules are used in conjunction with exports.test ?

My question is related to this question but the answers didn't help me.

The data being sent to endpoint is in json & Content-type: application/json.

var request = require('request'); //also tried for node-webhook, restler modules

exports.test = function(req, res) {
 //processing of received json data from source A. 
}

function sendToEndpoint(processed_data) {

  let abc = processed_data;   //send processed data to source B 

  request.post({
      uri: 'https://example.com',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify(abc)
  }); 

}

Possible duplicate of Google Cloud function to fetch data from third party server — Renaud Tarnec
@RenaudTarnec, no my question is not related to that. I have no problem in receiving the data. I am facing trouble in making a HTTP(s) POST request from cloud function. — Electric_90
This is exactly what this answer is covering: how to issue a POST HTPP Request to an external endpoint, from the Cloud Function. — Renaud Tarnec
@Electric_90 To be honest I don't know... my experience with Cloud Functions is limited to Firebase ones, deployed through the Firebase CLI. But from what I know, there shouldn't be any difference in this case. Only point I cazn see is that with Firebase CF, you need to be on the "Flame" or "Blaze" pricing plan. — Renaud Tarnec

Electric_90 Electric_90 · Accepted Answer · 2019-05-06T05:07:19

As @RenaudTarnec mentioned in the comments the problem was that my billing account was not configured.

Google doesn't allow outbound requests to external servers without valid billing info so as to prevent any malicious activity.

After configuring a billing account I was able to make outbound requests and all the node-modules mentioned in the question worked.

HTTP POST Google Cloud Functions NodeJS

3 Answers