Instagram API: force prompt during authentication

问题

Is there a way for the instagram auth(login) to always ask for authentication? This is skipped when the user is logged in and has already authorized the app.

It would be something like twitter's use_authorize=true or google's approval_prompt=force.

回答1:

I believe that the most simple way is to use next url:

https://instagram.com/accounts/logoutin/?force_classic_login=&next=URLENCODED_INSTAGRAM_OAUTH_URI_PATH_WITH_YOUR_DATA

For example:

window.location.assign('https://instagram.com/accounts/logoutin/?force_classic_login=&next=' + encodeURIComponent('/oauth/authorize/?response_type=code&scope=public_content+follower_list+comments&client_id='+ YOUR_IG_CLIENT_ID + '&redirect_uri='+encodeURIComponent(YOUR_REDIRECT_URI)));

Please take a note that your redirect uri should be encoded twice

回答2:

I managed to get it working:

I try loading an image with the url of the instagram logout page before opening the authorize popup.
Something like this (coffeescript):

windowOpen = ->
    window.open("/instagram/authorize?...")

if forceLogin
    tryLogout().always ->
        windowOpen()

And the tryLogout function (setTimeout 10seconds as a fallback)

tryLogout: ->
    deferred = $.Deferred()
    logOutImg = new Image()

    logOutImg.onerror = ->
        deferred.resolve()
    logOutImg.onload = ->
        deferred.resolve()

    logOutImg.src = 'https://instagram.com/accounts/logout/'

    setTimeout(->
        deferred.reject()
    , 10000)

    return deferred.promise()

回答3:

Here is the solution : you have to delete the Instagram cookie named sessionid from your browser so Instagram doesn't recognize you anymore

Solution for Android is here : https://stackoverflow.com/a/26847187/328845

来源：https://stackoverflow.com/questions/24550048/instagram-api-force-prompt-during-authentication

标签

api

oauth

instagram