On the front end I can use Javascript - not a problem - and then pass the User ID to the Rails app

# support-questions-legacy

rahoulb

01/31/2023, 4:06 PM

On the front end I can use Javascript - not a problem - and then pass the User ID to the Rails app

rahoulb

01/31/2023, 4:07 PM

But am I OK setting up, say a Node backend server - getting the JS to talk to this

rahoulb

01/31/2023, 4:07 PM

And then my Rails app taking that User ID and just calling the Core server to verify it and get details

rp_st

01/31/2023, 4:08 PM

the JS on the frontend can call the rails backend with the JWT which the rails backend can verify

rahoulb

01/31/2023, 4:08 PM

It looks like CDI's GET /recipe/user with the ID will do it

rahoulb

01/31/2023, 4:08 PM

Aah OK - cheers

rahoulb

01/31/2023, 4:08 PM

And it looks like the FDI is relatively simple to implement too - it's just mainly pass-throughs to the CDI?

rahoulb

01/31/2023, 4:09 PM

If so, I will probably build a Rails engine that implements it, so people can embed it directly into their Rails app

rp_st

01/31/2023, 4:12 PM

well.. the backend SDK does a lot of things and it's not just a pass through

rahoulb

01/31/2023, 4:15 PM

OK - I'll hold off on that one till I've looked through the other backend source (getting overexcited!)

rahoulb

01/31/2023, 4:15 PM

Found it - so it's the fronttoken header - send that to Rails, which can decode it and it then knows who the user is

rahoulb

01/31/2023, 4:16 PM

Perfect!

rahoulb

01/31/2023, 4:16 PM

Thank you

rp_st

01/31/2023, 4:37 PM

It’s not the front token. Id suggest that you see our docs for using session with JWT.

rahoulb

01/31/2023, 4:41 PM

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SuperTokens is an open source authentication solution offering features like: Different types of login: Email / password, Passwordless (OTP or Magic link based).