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Where are API tokens stored?
A JWT needs to be stored in a safe place inside the user’s browser. If you store it inside localStorage, it’s accessible by any script inside your page. This is as bad as it sounds; an XSS attack could give an external attacker access to the token.
Where are access token SPAs stored?
If the SPA backend cannot handle the API calls, the tokens should be stored in the SPA backend but the SPA needs to fetch the tokens from the backend to perform requests to the API. A protocol needs to be established between the backend and the SPA to allow the secure transfer of the token from the backend to the SPA.
Where are access tokens stored in a single page application?
We developers often have access tokens and other sensitive information flowing through our applicati o ns. Access tokens are needed so that we can consume APIs on behalf of our users, and the tokens have to be stored somewhere. With single-page applications, it’s tempting to store access tokens directly in the browser.
When to use token based authentication for spas?
When your SPA bootstraps, you attempt to access this endpoint. If you get back a successful response you continue with the bootstrap. If you do not, you know that the user needs to authenticate. Take advantage of the response body when you are responding to a credential exchange.
Which is the best way to store tokens?
Auth0 recommends storing tokens in browser memory as the most secure option. Using Web Workers to handle the transmission and storage of tokens is the best way to protect the tokens, as Web Workers run in a separate global scope than the rest of the application.
Why are JSON Web Tokens a good authentication mechanism?
Json Web Tokens (JWTs) are a great authentication mechanism. They give you a structured way to declare who a user is and what they can access. They can be encrypted and signed for verification. The notion of scopes is powerful and yet incredibly simple: you have tons of freedom to design your own access control language.