Node.js ships with the for…of and for…in loops. These two loops provide a convenient iteration besides the common for loop. Both loops give you a clean syntax for iterations and quick access to keys or values. This tutorial explores both loops in more detail and shows you …

JWT authentication uses a secret to sign or encrypt the tokens. Using an asymmetric algorithm based on a public/private key pair comes with some benefits. One benefit is that you can share the public key with anyone on the Internet. Of course, you must keep your private key safe …

Application hosting can become messy over time. You may shut down applications, move applications to a new domain, or you need a subdomain for a limited time. You may need to clean up your nginx configuration here and there to keep your lean setup. Nothing is worse than keeping every …

When using JSON web tokens in your application, it’s required to have at least a secret key. Using a secret key comes with a simple setup. The downside here, you must share the secret between the parties interacting with the JWT. Going one step further, you could create and …

Creating informative plots is not an easy task. You have to make sure to select a good visualization for the data. Additionally, you have to ensure that the presented data is easy to comprehend. In the previous tutorial, you have learned to add labels. In this tutorial, you will learn …

The hapi Node.js framework ships with a built-in validation mechanism for request input. You can seamlessly define a request’s validation rules on your route. Starting your hapi server with a misconfigured validation leads to assertion errors. In this tutorial, you’ll walk through the steps to fix the …

An informative plot does not only present the data itself well, but annotates the content in a way that readers will quickly grasp it. One critical element is to always add accurate axis labels. In this tutorial, you'll learn how to add and configure axis labels in matplotlib plots. {{outline} …

A JSON Web Key (JWK) is an important piece in the JWT universe because it represents a cryptographic key using a JSON data structure. Each JWK is represented by key-value pairs, like a typical JavaScript object but in JSON format. Additionally, the JSON Web Key Set is a JSON object …