How can i authenticate against Facebook when i already have the access_token?

[francisykl]

I have a use case where user shall be able to login via mobile(native) facebook app. Facebook iOS sdk will provide the access tokens. How can i authenticate the users via Facebook without again going to facebook to get the user into session?

[jurienhamaker]

+1

[enricodeleo]

+1

[Brunoalcau]

+1

[ncnxx]

You need to utilize other library like "passport-facebook-token" which will pass the access token to the Facebook server and authenticate the request. However, to prevent incompatibility among dependencies, you could do that yourself just accepting the access token, pass it to Facebook yourself and handle the session if the authentication success.