From the course: Mastering Nest.js: Build Scalable Applications with Mastery in Nest.js Framework

Unlock this course with a free trial

Join today to access over 25,200 courses taught by industry experts.

Introduction to pipes

Introduction to pipes - Nest.js Tutorial

From the course: Mastering Nest.js: Build Scalable Applications with Mastery in Nest.js Framework

Start my 1-month free trial Buy for my team

Introduction to pipes

“

In NestJS, pipes stand out as one of the fundamental tools that helps in data transformation and validation inside the application. They facilitate seamless transformation and validation on incoming data, such as transforming input data coming from a form by converting string value to integer or evaluating the input data to check if it is valid or not before the data traverses various parts of the application. All these processes are carried out by the pipe to ensure that the data fulfills the specific requirements before it is used in controllers or sent back as responses. This means that pipes can return the data, be it modified or original, and that data is passed on to the route handlers. Pipes are asynchronous in nature, so we can easily implement asynchronous behavior, such as fetching data from external sources, making database queries, or performing other IO operations. When it comes to pipes, Nest offers a number of built-in pipes that we can use out of the box. We can also…

Contents