OAuth Authorization in pipeDrive callback using express framework - node.js

Question

I created an app on sandbox.pipedrive.com in Marketplace Manager and then I created a callback which asked user to install the app which I setup in pipedrive.
If user allow to install they get redirected to my callback url in controller, my controller the code is :-
app.get('/pipedrive-callback', function(req, res) {
console.log('Success')
});
Now in function I want to exchange the auth token. Can anyone help me to solve this.

Answer 1

Can you try this?
You need to send another post request to their server after user is redirected to your callback. After the redirection you will get the authorization_code from the request params. You have to send that code in this post request to get the actual tokens that will allow you to do magic.
app.get('/pipedrive-callback', function (req, res) {
console.log('Success');
const authorization_code_from_service = req.query.code; // This will extract the authorization_code from the call back url.
//Here goes your step 4 + 5. You need to make a post request to their server now. For this, there is a library aka "request" in npm.
// Here is the link for that https://www.npmjs.com/package/request
const request = require("request");
const formData = {
"grant_type": "authorization_code",
"redirect_uri": "rediect url that you have set for your app",
"code": authorization_code_from_service
}
request.post({
url: 'https://oauth.pipedrive.com/oauth/token',
form: formData
},
function (err, httpResponse, body) {
//This will be the data that you need for further steps. Actual token, expiry time etc
console.log(body);
}
);
});
Npm link : https://www.npmjs.com/package/request