Issue with OAuth2 Scope: Data Missing in Frontend but Present in Backend

Backend
1

I’m encountering a problem where my backend successfully retrieves data, but it fails to appear on the frontend. The error message I see in the backend says:

“The provided OAuth2 scope name is either invalid or corresponds to a newer scope outside this legacy API’s domain. Originally, the API’s scope naming was not standardized, but now all valid scope names are compiled at the OAuth2 scopes documentation page. Manually check the scope name linked with the API you’re calling before constructing your OAuth2 request.”

I’m using OAuth2 for authentication and suspect the issue could be due to the scope. Backend data retrieval works, but the frontend lacks the data display. Here’s what I’ve done so far:

  • Verified that the OAuth2 scopes align with the official documentation
  • Confirmed the API request returns correct data on the backend
  • Examined the API response in the browser’s network tab and found the correct data
  • Checked the response body, which has the appropriate data
  • Ensured CORS settings are correct to avoid cross-origin problems

Here are my questions:

  • Could incorrect OAuth2 scopes be causing this issue? How can I rectify this?
  • What steps can I take to verify the frontend handles and shows the data correctly?
  • Are there any additional troubleshooting steps I should consider?

For context, my backend is built with Python, and the frontend uses JavaScript. I also reviewed the developer tools for any console errors and noted [any relevant errors]. Your help is greatly appreciated! Thanks!

2

hey sam, sounds like ur frontend’s the culprit here. oauth2 scope issue seems unrelated. double-check ur js code for silent errors when handling the data. also review the component displaying it and any state management. maybe try console.logging the data at different stages to see where it disappears. good luck!

3

Your issue appears to stem from how the frontend is processing the data rather than from the OAuth2 scopes themselves. The backend shows that the correct data is being retrieved, so the focus should be on ensuring the frontend properly parses and renders the API response. It is important to verify that your JavaScript code does not encounter any silent errors when handling the data. Additionally, review the component responsible for displaying the data and any state management logic. Although the OAuth2 scope error might be a warning, revisiting your scope definitions to align with current API requirements could prove beneficial.

4

hmm, interesting problem sam! have u tried logging data at various points in ur frontend code? that may pinpoint where it’s disappearing. also, check your state management, as data might get lost there. perhaps a test component to render raw data could help. what do u think?