claude-code - 💡(How to fix) Fix OAuth token expires frequently despite refresh_token present [2 comments, 2 participants]

TL;DR

The issue can be mitigated by implementing a periodic token refresh mechanism using the refreshToken stored in ~/.claude/.credentials.json.

Guidance

• Investigate the authentication library or module used by Claude Code to understand how token refresh is handled, as the current implementation seems to not utilize the refreshToken correctly.
• Consider adding a scheduled task or a background process that periodically checks the token expiration and refreshes it using the refreshToken before it expires.
• Review the OAuth implementation, specifically the token expiration and refresh logic, to ensure it aligns with the expected behavior of auto-refreshing tokens.
• Verify that the refreshToken is correctly stored and retrieved from ~/.claude/.credentials.json across all tmux sessions.

Example

import json
import time
from datetime import datetime, timedelta

# Load credentials
with open('~/.claude/.credentials.json') as f:
    credentials = json.load(f)

# Assume token_expires_at is stored or can be calculated
token_expires_at = credentials.get('token_expires_at')

# Periodic refresh logic (simplified example)
def refresh_token():
    # Logic to refresh token using refreshToken
    pass

def check_and_refresh_token():
    if token_expires_at - datetime.now() < timedelta(hours=1):  # Refresh 1 hour before expiration
        refresh_token()

# Run check_and_refresh_token periodically (e.g., every 30 minutes)

Notes

The provided solution assumes that the refreshToken is correctly stored and that the issue lies in the implementation of the token refresh mechanism. The actual implementation details may vary based on the specific authentication library or framework used by Claude Code.

Recommendation

Apply workaround: Implement a periodic token refresh mechanism as described, to mitigate the authentication drop issue until a more permanent fix can be applied to the underlying authentication logic.