Ccreating a session from backend code

[ChayaninSuatap]

Question 💬

My scenario is that I used an external OAuth service. After the user sign in successfully, the OAuth will redirect to my API route with user information (NEXT.js API route) Then I want to create a session using the information returned from OAuth.

So, is there a way to create a session directly from backend code without signing in from the frontend? (The OAuth service I used has their own sign in page).
I have search in the document and found that I may have to setup a custom provider. But, to be honest, it is quite scary for me to do all the configs 😢. So if there's a way to get around that, it will be good.

I also tried to use the signIn function which imported from "next-auth/react" and, obviously, it is not working. Because this signIn is intended to be used only on the frontend (It involves the window object on browser)

[Nisthar]

@ChayaninSuatap I think your question is similar to what i asked here #6086
A lot of backends handle the oauth themselves. The problem is handling the refresh tokens and access tokens in both client and server.

[balazsorban44]

If you don't need user interaction, you are likely looking for a machine to machine or client credentials flow and you don't really need next-auth

https://oauth.net/2/grant-types/client-credentials/