![]() Its result should be false or Promise if the token should be rejected or, otherwise, be true or Promise if the token should be accepted and, considering that er will be used after that, the return should be decodedToken itself. It uses progressive JavaScript, is built with TypeScript and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming). blacklisting) by providing the option trusted with the following signature: (request, decodedToken) => boolean|Promise|SignPayloadType|Promise where request is a FastifyRequest and decodedToken is the parsed (and verified) token information. As 'window' object is not present in nodejs environment, we could use the following lines of code : let base64Url token.split ('.') 1 // token you get let base64 base64Url.replace ('-', '+').replace ('', '/') let decodedData JSON.parse (om (base64, 'base64'). Nest is a framework for building efficient, scalable Node.js server-side applications. ![]() JWT uses Base64Url encoding which is slightly different from Base64 - this is why window.atob() will fail randomly for parsing JWTs. Unlike the suggestion to use window.atob(), this solution actually works. Using jsonwebtoken library: For this to work install jsonwebtoken dependency using npm install jsonwebtoken command. I concur The jwt-decode package is also available on NPM. There are 4415 other projects in the npm registry using jwt-decode. Start using jwt-decode in your project by running npm i jwt-decode. Latest version: 4.0.0, last published: 2 months ago. exports = async function ( fastify, opts ) ) trustedĪdditionally, it is also possible to reject tokens selectively (i.e. Let’s see how to decode a JWT in node js first using a library and then using node js itself. Decode JWT tokens, mostly useful for browser applications.
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