JSON Web Token
Using plain-text passwords such as banana is not at all secure. We should use a token scheme to make our authentication secure. We'll use the JSON Web Token (JWT) standard (defined in RFC 7519: https://tools.ietf.org/html/rfc7519), which is very simple but also very powerful. JWT allows the client to use a shared secret (such as banana) to sign a set of claims to generate a token which is then sent to the server. A claim is a piece of information that the client sends to the server and which must be authenticated. Most commonly, this would be the username but it can include any set of data. Previous to JWT, such info was included in various ways and there was room for error due to poorly designed claims encoding or mistaken implementations. ...
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