facebook - Providing "login_hint" on server side Azure Mobile App -


i using azure mobileserviceclient authenticate mobile app. want enable secure logout function, involves deleting cookies created web component. otherwise selecting "login" logged in if there's unexpired cookie lurking around. deleting cookies working great.

unfortunately, means user returning same provider on same device has provide username again (clearly, don't want store password).

i found out how make work google. (google openid doc) provide dictionary of parameters loginasync method. dictionary contains key "login_hint" , user's email address (which, btw, has valid work).

this doesn't seem work facebook, microsoft or twitter accounts , don't know why. read document said "login_hint" or "username" supported convention, none of seems work.

anyone have experience (even different approach) can share?

tia.

in order implement idp provided solutions that, need move client-flow authentication. client-flow when use idp provided sdk authenticate user. once idp has given token, pass token (silently) azure mobile apps exchange zumo token can use azure mobile apps service.

once have client-flow enabled, can idp (facebook, google, etc.) allow do. it's not azure mobile problem - more of idp problem.


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