Upstream Authentication using Auth Token

Token-based authentication

Token-based authentication (also referred to as Auth Token) is a method whereby the client is identified and authenticated by the server based on a key/token they present as a credential with each request. Typically the token is issued by the server to a specific client.

The server determines how the key should be provided - typically in a request header, cookie or query parameter.

Tyk supports Auth Token as a method for authenticating clients with the Gateway - you can use Tyk Gateway or Dashboard to generate access keys for an Auth Token protected API as explained in the documentation. The client must then provide the key in the appropriate parameter for each request.

If your upstream service is protected using Auth Token then similarly, Tyk will need to provide a token, issued by the upstream, in the request.

How to use Upstream Token-based Authentication

Typically Auth Token uses the Authorization header to pass the token in the request.

Tyk’s Request Header Transform middleware can be configured to add this header to the request prior to it being proxied to the upstream. To enhance security by restricting visibility of the access token, the key/token can be stored in a key-value store, with only the reference included in the middleware configuration.