File size: 3,530 Bytes
a0ef37d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | #!/usr/bin/env python3
"""
Diagnostic script to validate LangFuse API key credentials.
Run this before starting the app to confirm LANGFUSE_PUBLIC_KEY /
LANGFUSE_SECRET_KEY in your .env actually authenticate against LangFuse.
Usage:
python scripts/validate_langfuse_keys.py
"""
import os
import sys
from pathlib import Path
from dotenv import load_dotenv
load_dotenv()
# Allow running as `python scripts/validate_langfuse_keys.py` from repo root
sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
from utils.langfuse_client import check_langfuse_auth
def validate_langfuse_config() -> bool:
"""Validate LangFuse configuration and credentials."""
print("=" * 80)
print("LangFuse Key Validator")
print("=" * 80)
print()
enabled = os.getenv("LANGFUSE_ENABLED", "true").lower() == "true"
public_key = os.getenv("LANGFUSE_PUBLIC_KEY", "")
secret_key = os.getenv("LANGFUSE_SECRET_KEY", "")
host = os.getenv("LANGFUSE_BASE_URL", "https://us.cloud.langfuse.com")
print("1. Checking environment variables...")
print("-" * 80)
print(f"✅ LANGFUSE_ENABLED: {enabled}")
print(f"{'✅' if public_key else '❌'} LANGFUSE_PUBLIC_KEY: {public_key or 'NOT SET'}")
secret_display = f"{secret_key[:6]}...{secret_key[-4:]}" if len(secret_key) > 10 else ("***" if secret_key else "NOT SET")
print(f"{'✅' if secret_key else '❌'} LANGFUSE_SECRET_KEY: {secret_display}")
print(f"✅ LANGFUSE_BASE_URL: {host}")
print()
if not enabled:
print("LangFuse is disabled via LANGFUSE_ENABLED=false — nothing to validate.")
return True
if not public_key or not secret_key:
print("ERROR: Missing required LangFuse API keys.")
print()
print("Fix: Add LANGFUSE_PUBLIC_KEY and LANGFUSE_SECRET_KEY to your .env file.")
print(" Get them from https://cloud.langfuse.com -> Project Settings -> API Keys")
return False
print("2. Testing authentication against LangFuse API...")
print("-" * 80)
ok, message = check_langfuse_auth()
if ok:
print(f"✅ SUCCESS: {message}")
print()
print("=" * 80)
print("✅ All checks passed! Your LangFuse configuration is correct.")
print("=" * 80)
return True
print(f"❌ ERROR: {message}")
print()
if "401" in message or "Unauthorized" in message:
print("DIAGNOSIS: Authentication failed (401)")
print(" 1. Verify LANGFUSE_PUBLIC_KEY and LANGFUSE_SECRET_KEY are correct and match the same project")
print(" 2. Check for extra whitespace or truncated copy/paste")
elif "403" in message:
print("DIAGNOSIS: Access denied (403)")
print(" Keys parsed but access was refused — check project/org permissions in LangFuse.")
elif any(s in message for s in ("Connection", "timeout", "resolve", "Timeout", "Name or service")):
print("DIAGNOSIS: Cannot reach LangFuse host")
print(f" 1. Verify LANGFUSE_BASE_URL ({host}) is correct")
print(" 2. If self-hosting, confirm the server is running and reachable")
else:
print("DIAGNOSIS: See error message above for details.")
print()
print("=" * 80)
print("❌ Configuration validation FAILED")
print("=" * 80)
return False
if __name__ == "__main__":
print()
success = validate_langfuse_config()
print()
if not success:
sys.exit(1)
print("Next steps:")
print(" python app.py")
print()
sys.exit(0)
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