Hubspot Oauth2 not working properly with state parameter in redirect_uri

[johannes-m]

If we mention the redirect_uri in the app configuration and if we pass some value to the state parameter we get the following error.

Couldn’t complete the connection

The redirect_uri doesn't match the client registered redirect_uri. Please contact the app developer.

For some weird reason it works perfectly if we do not mention anything in the redirect_uri of app configurations. I am afraid it might stop working in the future.

[zaklein]

Hi @johannes-m 

I was able to successfully install a test HubSpot app, while retaining the "state" URL parameter (as per the HubSpot documentation you shared). Can you please confirm these are the steps you have taken:

• Define your app's "Redirect URL" (within HubSpot app management area)
• Select necessary scopes (within HubSpot app management area)
• Save updated configuration (within HubSpot app management area)
• Use the "Copy full URL" button and paste it wherever you want to share this install URL
• Append your state parameter, as per your app's requirements. For example, if my default install URL (generated by HubSpot) was:
  • https://app-eu1.hubspot.com/oauth/authorize?client_id=123-456-789&redirect_uri=https://my-test-app.c...
• Then the install URL I'd share with potential installers would be:
  • https://app-eu1.hubspot.com/oauth/authorize?client_id=123-456-789&redirect_uri=https://my-test-app.c...&state=abc

Hope this helps. Please let me know how you get on 🙂

All the best,

Zach

[dennisedson]

Doesn't look like you can add that param in the app auth. 

@zaklein , any way you can think of adding this?

[johannes-m]

As per the documentation https://developers.hubspot.com/docs/api/working-with-oauth it should support state parameter. In our case we need to pass a middleware token to the redirect URI through the Oauth mechanism to authenticate the user into our system after Oauth process.