[Bug]: MCP gateway ping fails because the refresh token is not yet implemented..

[popagruia]

🐞 Bug Summary

Briefly describe the issue or unexpected behavior.
w ping because the refresh token is not yet implemented..

🧩 Affected Component

Select the area of the project impacted:

• mcpgateway - API
• mcpgateway - UI (admin panel)
• mcpgateway.wrapper - stdio wrapper
• Federation or Transports
• CLI, Makefiles, or shell scripts
• Container setup (Docker/Podman/Compose)
• Other (explain below)

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🔁 Steps to Reproduce

1. I add an OAUTH2 authenticated server https://api.githubcopilot.com/mcp/.
2. I can "authorise" and fetch tools
3. After 24h Server is shown as "offline

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🤔 Expected Behavior

Seems that _refresh_access_token needs to be implemented

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📓 Logs / Error Output

2025-09-16 14:05:02,116 - mcpgateway.services.token_storage_service - INFO - OAuth token expired for gateway 0cceff485d5145a493911c846fa2b9b0
2025-09-16 14:05:02,117 - mcpgateway.services.token_storage_service - INFO - Token refresh not yet implemented for gateway 0cceff485d5145a493911c846fa2b9b0

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🧠 Environment Info

You can retrieve most of this from the /version endpoint.

Key	Value
Version or commit	0.0.7
Runtime	Python 3.11, Gunicorn
Platform / OS	macOS
Container	none

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🧩 Additional Context (optional)

Add any configuration details, flags, or related issues.

[popagruia]

@crivetimihai @madhav165 Please reopen the issue. Please see the log with the issue reappearing. GW is marked as offline after few hours.

2025-10-02 11:46:18,550 - mcpgateway.services.token_storage_service - INFO - OAuth token expired for gateway dc2af7b3fb0f46cba472df9b37c98670, app user admin@example.com
2025-10-02 11:46:18,592 - mcpgateway.services.token_storage_service - INFO - Attempting to refresh token for gateway dc2af7b3fb0f46cba472df9b37c98670, user admin@example.com
2025-10-02 11:46:18,869 - mcpgateway.services.oauth_manager - WARNING - Token refresh attempt 1 failed: 200, message='Attempt to decode JSON with unexpected mimetype: application/x-www-form-urlencoded; charset=utf-8', url='https://github.com/login/oauth/access_token'
2025-10-02 11:46:20,164 - mcpgateway.services.oauth_manager - WARNING - Token refresh attempt 2 failed: 200, message='Attempt to decode JSON with unexpected mimetype: application/x-www-form-urlencoded; charset=utf-8', url='https://github.com/login/oauth/access_token'
2025-10-02 11:46:22,452 - mcpgateway.services.oauth_manager - WARNING - Token refresh attempt 3 failed: 200, message='Attempt to decode JSON with unexpected mimetype: application/x-www-form-urlencoded; charset=utf-8', url='https://github.com/login/oauth/access_token'

[madhav165]

@crivetimihai @popagruia We can either configure a default token expiry time in settings when it is not provided by the server (like in the case of GitHub) or capture this from UI separately for each server from UI and store it in the oauth_state and use it. The second option is probably better, let me know your thoughts.