Can you explain the difference between basic authentication and token-based authentication?

Basic Authentication (Basic Auth) is a simple way of transmitting a username and password in the HTTP header, usually in Base64 format. The client sends this data with each request, the server verifies it, and access is granted.

Token-based authentication involves the server issuing a token (e.g., JWT) after the initial user verification, which the client then uses for subsequent requests. The token contains user information and an expiration date, allowing the server to verify it quickly without constant database access.

Main differences:

• Security: tokens are generally safer as they do not transmit the password with each request.
• Scalability: tokens make it easier to scale the system since the server does not store sessions.
• Flexibility: tokens can contain additional data and access rights.

Example of Basic Auth:

Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=

Example of Token Auth:

Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...