What is Basic and Bearer tokens

Basic or Digest tokens are dedicated to the authentication using a username and a secret/Password only.

Bearer tokens in HTTP requests are used to access OAuth 2.0 protected resources.  Any party in possession of a bearer token (a "bearer") can use it to get access to the associated resources (without demonstrating possession of a cryptographic key). To prevent misuse, bearer tokens need to be protected from disclosure in storage and in transport.