Updated redirect_uri not working

[badriravi]

Hello, 

When I first created a dropbox app, my redirect_uri was http://localhost:4200/. Everthing was working fine and I continued to develop the application, then  I needed to updated the redirect_uri, I changed it to http://localhost:4200/third-party-redirect/ and https://3e0cecfb.ngrok.io/third-party-redirect.  After updating, I am not able to  authenticate my users anymore. I am getting this error 

Invalid redirect_uri. It must exactly match one of the redirect URIs you've pre-configured for your app (including the path).

If I revert back to the old redirect_uri,  http://localhost:4200/ then  everything is working fine. How can I  update the redirect_uri ?

[Greg-DB]

As a security feature, all redirect URIs used for an app must be pre-registered for the app. If you attempt to use a redirect URI that hasn't been registered, you'll receive this error.

To register an OAuth 2 redirect URI, access the app's page on the App Console by clicking on the app's name there:

https://www.dropbox.com/developers/apps

Then, add the desired redirect URI (exactly as it will be used) to the "OAuth 2: Redirect URIs" section.

[badriravi · Accepted solution]

Hello

Thanks for the help, it's an error on my end. Everything is working fine now, Thanks. 

[evry1falls]

I have the same problem 

What was your solution for this ?

[Greg-DB]

@evry1falls The error originally mentioned here occurs when your app attempts to use a redirect URI that you haven't pre-registered for it, so double check that you've registered the exact redirect URI that you're using. You can find more information on how to do so in my earlier comment.