Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live — John Woods Writing clean code is not easy. It must be readable and maintainable. Writing clean code is not a process that we can achieve very quickly…

Memoization is speed optimization technique in programing, where a given function, you return a cached version of the output if the same inputs are used. How re-render works in React ? When the Virtual DOM gets updated, React compares it to to a previous snapshot of the Virtual DOM and then only updates what has changed…

Step-by-step guide to secure Rest API build with NestJs using Keycloak. I am assuming you already have a JS frontend app or at least a HTTP client that perform the authentication against Keycloak and is in possession of a JWT and can pass in the header to your NestJS backend. …

Step-by-Step guide to secure application build with React front end and Node back end (Express Rest API) using Keycloak. Steps User trying to login to the front-end application (React.js). User will be redirected to the Keycloak server for authentication. If authentication successful, Authenticated user will be redirected to the application…