OAuth 2.0 – Device flow explained for Engineers, especially for Backend Engineers - Stack Overflow
Stack Overflow Business Stack Internal: the knowledge intelligence layer that powers enterprise AI.Stack Data Licensing: decades of verified, technical knowledge to boost AI performance and trust.Stack Ads: engage developers where it matters — in their daily workflow.First time I tried to login to Netflix at a hotel TV I almost gave up. The remote was having only four arrow keys and a number pad. My password was 18 characters with symbols. Whoever designed the login screen had either never used it themselves, or they had decided suEering builds character.After few years, the same TV’s started doing something different. They showed us a short code and an URL. I opened phone, typed the URL, entered the code and we are in. No remote-control circus. No password on a TV.That is OAuth 2.0 device authorization grant. Most of the people just call it that device flow.If we run aws sso login, gh auth login, or signed into Spotify on an Xbox, we have already used it. And if you are build a backend for a CLI, an IOT device, a smart TV app or anything where typing a password is really painful or not safe, we should end up implementing it sooner or later.
