Using OAuth 2 with desktop c# Application

Question

I never used oauth before, so i wanted my app to open a url on system's default browser, then the user logs in, authorize, etc etc and then i need to send back the authorization code to my application, is there a way to do it? i'm using Trakt's API.

Due to browser security constraints, you may not be able to communicate directly back to the application. Design a web service 'middle man' which brokers the authentication. — lcryder
– lcryder, Commented Jan 13, 2015 at 19:48
unless you can register an external handler for an application specific URL scheme so the code is directly delivered to the application — Hans Z.
– Hans Z., Commented Jan 13, 2015 at 22:06
How can i do that? i'm new at programming, is there a easier way to do this? i tried to open with webbrowser control, but it uses the lowest document mode available at it, which makes the auth page and the rest of the site awful... — Gabriel Duarte
– Gabriel Duarte, Commented Jan 14, 2015 at 2:17

Vilmantas Baranauskas · Accepted Answer · 2015-01-14 07:52:16Z

14

There are multiple options, here are some of them:

use a custom URL scheme for a callback URL, e.g. "myapp://callback/after/oauth";
deliver authorization code inside of the browser title and watch the browser window title from your application;
temporary start a webserver from within your application and use a callback URL "http://localhost:port/".

Google recommends #2 and #3 for desktop applications. #1 is normally used for mobile: https://developers.google.com/accounts/docs/OAuth2InstalledApp

answered Jan 14, 2015 at 7:52

Vilmantas Baranauskas

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2 Comments

Nicolas Raoul Over a year ago

Would you have a link showing what Google says exactly? Thanks!

Potion Over a year ago

How would I do option 2 or 3 for a macOS app? I found this answer by Manos (stackoverflow.com/questions/38268175/…) but I cannot find an httpListener

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