Fast sign in by a link with temporary token

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I want to find a way to create a get link for a quick login.
For example domain.com/auth/{token} where {token} is some known token associated with the user.
How can I create an authorization session by processing this route?

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How can I make server-side authorization in my backend?

[0ubbe]

Could you explain a bit more your use case? I don't understand the auth flow you want to achieve. You can also point to an article explaining it if that's easier 👍🏽

Have you had a look at the Email Provider? It seems similar to what you want to achieve. Once set up, the user will receive a magic link on their email to sign in, similar to apps like Notion do.