Facebook 登录：请确保您的 redirect_uri 与您在 OAuth 对话框中使用的相同

Question

So I'm out of ideas, I don't know what to check or debug anymore, but on the exception I get this:

string(188203) "Facebook\FacebookAuthorizationException Object
(
    [statusCode:Facebook\FacebookRequestException:private] => 400
    [rawResponse:Facebook\FacebookRequestException:private] => {"error":{"message":"Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request","type":"OAuthException","code":100,"fbtrace_id":"DqCCKoiN0r4"}}
    [responseData:Facebook\FacebookRequestException:private] => Array
        (
            [error] => Array
                (
                    [message] => Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request
                    [type] => OAuthException
                    [code] => 100
                    [fbtrace_id] => DqCCKoiN0r4
                )

        )

    [message:protected] => Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request
    [string:Exception:private] => 
    [code:protected] => 100

Answer 1

You can set redirect URI in Go to https://developers.facebook.com/apps Select your app.

Under Products > Facebook Login > Settings

• Enable Embedded Browser OAuth Login
• Set Valid OAuth Redirect URIs

You can Validate Redirect URI with Redirect URI Validator.

You can only use https URIs. Also set App Domain in Settings > Basic > App Domains

Try / at the end of redirect URI

In my case I was using https://localhost everywhere but somehow when getting access token specifying https://localhost/ worked.

Answer 2

I believed you have used different redirect_uri in your facebook app settings and Oauth API code. thats why you got this error.

For facebook login you must set same redirect_uri into both place.

Answer 3

As absurd as it sounds, verify you're using the correct app_secret.

Facebook will give you this instead of just saying "invalid secret" in the response

Answer 4

这意味着您传递给 FB 的重定向 URI（通常在查询字符串中）与您在应用设置中设置的不匹配。

Answer 5

It can also be because of multiple slashes, for ex:

https://yoursite.com/auth/facebook/callback -> that's the one you added in the app settings
https://yoursite.com//auth/facebook/callback -> that's what you actually send

Answer 6

For me, it worked by replacing

callbackURL: "api/auth/facebook/redirect/",

to

callbackURL: "http://localhost:3000/api/auth/facebook/redirect/",

in the new FacebookStrategy

Answer 7

Was stuck in the same problem for a long time . You will get this error when the redirect url is mismatching or does not exist or is wrongly formatted in the field (additional spaces or // ) , either the facebook app setting or while you are calling the API .
Solution
What worked for me was when ever you add a redirect URl you can check it in the valid redirect auth field uf it doesnot show valid when pressed check than that url is not the correct one

Answer 8

Make sure to have it exactly as in your FB settings.

For me, I had https://localhost:3000/ in my settings but https://localhost:3000 in my get access token call and this was the source of the error!

Answer 9

I had the same issue and non of the answers helped me, then I tried to make another Facebook app, and it solved my issue! I mean you have to use one application for Facebook OAuth and make another to use for Instagram oauth . seems Facebook has an issue with using both functionalities in one app.