Fixing the JWT Secret Error | Generated by AI

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Fixing the JWT Secret Error in LibreChat

The logs indicate the API is starting but crashing due to a missing JWT secret: JwtStrategy requires a secret or key. This is a common setup issue in LibreChat—the backend uses JWT (JSON Web Tokens) for authentication, and without a secret key, it can’t initialize the strategy. The RAG API, permissions, and other services are fine, but this blocks the main API from fully starting, preventing access to http://localhost:3080.

Quick Fix: Set the JWT_SECRET

  1. Generate a Secure Secret:
    • Run this command to create a random 32+ character string (use it as your JWT_SECRET):
      openssl rand -base64 32
      

      Example output: a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6q7r8s9t0u1v2w3x4y5z6

  2. Update Your .env File:
    • Open .env (in your LibreChat project root).
    • Add or uncomment this line (replace with your generated secret):
      JWT_SECRET=your_generated_secret_here
      
    • If it’s already there but empty/commented, just fill it in.
    • Save the file.
  3. Restart the Services:
    docker compose down
    docker compose up -d
    
    • Watch the logs: docker logs -f api (or docker logs -f librechat_api if named differently).
    • Look for successful startup without the JWT error. It should log something like “Server running on port 3080”.

Verify It’s Working

Other Notes from Logs

This should get you up and running—JWT_SECRET is required for auth endpoints. If logs show a different error post-fix, paste them here.

LibreChat Environment Variables
Common Docker Issues


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