By: T-Mobile

October 16, 2017
In Microservice architecture, using the Access Token Pattern solution, the API Gateway authenticates a request and passes an access token (e.g. JSON Web Token) to downstream systems and services securely. This helps the service or system to identify/authenticate/authorize each request. JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. Compact: Because of their smaller size, JWTs can be sent through a URL, POST parameter, or inside an HTTP header.
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