December 2017
Intermediate to advanced
316 pages
6h 58m
English
Content preview from Building RESTful Web services with Go
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Introduction to JSON Web Tokens (JWT) and OAuth2
The previous style of authentication is a plain username/password and session-based. It has a limitation of managing sessions by saving them in the program memory or Redis/SQLite3. The modern REST API implements token-based authentication. Here, tokens can be any strings generated by the server, which allows the client to access resources by showing the token. Here, the token is computed in such a way that the client and the server only know how to encode/decode the token. JWT tries to solve this problem by enabling us to create tokens that we can pass around.
Whenever a client passes the authentication details to the server, the server generates a token and passes it back to the client. The ...
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