Authentication Examples in API Tools

🔐 Authentication is a critical aspect of securing APIs. Below are common methods and examples to help you implement authentication in your projects.

Common Authentication Methods

• OAuth 2.0
  A widely used protocol for authorization.

  Example: [OAuth Implementation Guide](/en/api_tools/docs/authentication/oauth)

• JWT (JSON Web Token)
  Stateless token-based authentication.

  Example: [JWT Best Practices](/en/api_tools/docs/authentication/jwt)

• API Key
  Simple and secure method for server-to-server authentication.

  Example: [API Key Setup](/en/api_tools/docs/authentication/api_key)

Example Code Snippets

# OAuth 2.0 (simplified)
def authenticate_oauth(token):
    if validate_token(token):
        return "✅ Authorized"
    return "❌ Unauthorized"

# JWT Verification
def verify_jwt(jwt):
    try:
        payload = decode_token(jwt)
        return f"JWT Valid: {payload}"
    except:
        return "JWT Invalid"

Best Practices

🛡️ Always use HTTPS to protect credentials.
⚡ Rotate secrets regularly for security.
🔗 For deeper insights, check our API Security Center.

For interactive examples, visit Authentication Playground.