Zystkmt

I am working with twitter SDK to integrate with in ios app.When i follow all the step and create the customer key and put it in my app.When I run the app it show
"[TwitterKit] did encounter error with message

"Error obtaining user auth token.": Error Domain=TWTRLogInErrorDomain
Code=-1 "Callback URL not approved for this client application.
Approved callback URLs can be adjusted in your application
settings" UserInfo={NSLocalizedDescription=Callback URL
not approved for this client application. Approved callback URLs can
be adjusted in your application settings"

How to resolve this?

I had the same problem and the TwitterKit documentation is not accurate or Twitter has changed their policies. In any case, on the Twitter Apps site, the callback URL has to be set very specifically. The callback URL should be in the format:

twitterkit-{consumer/api key}://

For example:

twitterkit-128238aKjqlp123AKdasdf://

Also, this needs to be registered in your Info.plist exactly the same:

<dict>

<key>CFBundleURLSchemes</key>

<array>

    <string>twitterkit-128238aKjqlp123AKdasdf</string>

</array>

</dict>

More documentation is listed here: https://developer.twitter.com/en/docs/basics/callback_url.html

I just added on callback url field twitterkit-<apiKey>://.
If you have an apiKey like abc you should add twitterkit-abc://. This work for iOS, for Android just add twittersdk://.

To Fix this issue do as below:

[Mandatory]

Add CallbackURL into the dashboard as below format:

For iOS:

twitterkit-CONSUMERKEY://

For Android:

twittersdk://

Help Link:

https://twittercommunity.com/t/ios-twitter-login-error-code-415/107775

[ Note: Please replace your consumer key in place of words "CONSUMERKEY" in above format]

My solution: I hope it's useful.

Go to https://apps.twitter.com

Then in the "Settings" tab of your app.
Fill the "Callback URLs" form.

According to this documentation i guess you just have to enter a valid URL :
https://github.com/twitter/twitter-kit-ios/wiki/Installation

NOTE: Although the callback URL will not be requested by Twitter Kit in your app, it must be set to a valid URL for the app to work with the SDK.

Hey everyone here is a simple fix that worked for me.

Go to: https://apps.twitter.com
Go into the settings tab.
Under Terms of Service URL uncheck the box that says:
"Unable Callback Locking"
Now test your app.