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Integrate GitHub Login with OAuth Device Flow in Your JS CLI

Debajyati Dey on May 20, 2025

Command-line utilities are the most basic and beautiful apps ever created, the apps that started it all. Building a CLI in JavaScript is just a ...
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Nevo David

pretty cool seeing all this care put into error handling and security in a cli - tbh makes me think long term, does picking these patterns up front actually change the way teams build tools down the road?

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Debajyati Dey

I think so.

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Arindam Majumder

great work!

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Debajyati Dey

Glad you liked it!

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Nathan Tarbert

pretty cool walkthrough - i always end up overthinking error handling, so seeing it mapped out like this helps a ton. you ever run into any edge cases actually breaking this flow, or does it mostly just work once set up?

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Debajyati Dey

Ya it works mostly as expected once set up.

Well if you would like further reading I recommend you to check out result object pattern or Railway Orientated Programming.

You can refer to these resources too if you like (I found these insightful) -

  1. Functional Error Handling in TS- Reddit Answer
  2. Result Object Pattern in TS - A Blog
  3. Railway Orientated Programming in JavaScript - A LogRocket Blog
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Samyabrata Maji • Edited

Most comprehensive oauth flow tutorial for a cli I have seen. Great work!

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Debajyati Dey

I appreciate your kind review! Thanks Sammy!

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Subhradip Sinha

Keep growing bro 💪

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Debajyati Dey • Edited

Thanks bro. Same applies to you too

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Shrijal Acharya

Great job building this, Deb! 👏🏻

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Debajyati Dey

Thanks a lot of reading it!