Sometimes you need to remove duplicate values from an array in JavaScript. Actually, it’s straightforward in modern JavaScript to quickly create an array of unique values using the Set data structure. {{outline}} JavaScript Array With Unique Values This is a welcoming use-case for the Set data structure. JavaScript introduced …

The recent tutorials in this JSON web token series walked you through the process of encrypted tokens. Creating an encrypted JSON web token has the benefit that nobody can access the content except the holder of the secret key or key pair. In the previous tutorial, you created an encrypted …

You’re naturally in the needs of handy utilities when working with JavaScript handling arrays. Modern JavaScript frameworks —especially the frontend frameworks— abstract most of the DOM interaction. You’re focusing on the actual logic and implement the data handling. When implementing the logic, a handy utility related to JavaScript …

Implementing signatures and encryption for JSON web tokens can be complex due to the cryptographic handling. Up to this point in this tutorial series, you implemented both features on top of existing libraries. A downside of the previous tutorials: when introducing encrypted tokens, you removed the signature of a JWT. …

Axios provides a clean promise-based API to interact with HTTP endpoints. It supports a variety of formats and use-cases. A previous tutorial showed you how to download files with Axios in Node.js. This tutorial walks you through the process of adding a progress bar when downloading files with Axios …

Most of the JWT tutorials in the Internet show you how to work with signed tokens. In the previous tutorial, you changed your code to create encrypted JWTs. This switch from signed to encrypted JWTs requires changes to your user authentication as well. This is what you’ll implement in …

We already touched the encryption aspect in the previous JWT tutorial on encrypting the JWT payload in “a simple way”. The linked tutorial showed you how to encrypt input data and put the encrypted data into the payload of a signed JWT. Here, you’ll create a fully encrypted JWT …