Move into the application folder and start the application using commands: // move into the project Before running the application, use npm to install a validation library that you will use later in the tutorial. This process creates a new project in a nest-starter-testing folder and installs all of its required dependencies. Select npm and press the Enter key to start installing Nest.js. Run this command to create a new application: nest new nest-starter-testingĪfter running the nest command, you will be prompted to choose a package manager.
You can find more details about databases and Nest.js here. Nest.js is database agnostic though, so you can choose to work with any database you prefer. This tutorial uses MySQL as the preferred relational database choice and combines it with TypeORM. We will edit, delete, and retrieve a single product, and also retrieve the entire list of products saved in the database. The RESTful API that we build in this post will provision endpoints to create a product with a name, description, and price. If you don’t have a CircleCI account, sign up for a free one here. Our tutorials are platform-agnostic, but use CircleCI as an example. It is also helpful know a few things about TypeScript.There are a few things you will need for you to get the most out of this tutorial:
#FACTORY METHOD RUN SEQUENTIAL TESTING HOW TO#
I will wrap up the tutorial by showing you how to automate the testing process using CircleCI. I will also demonstrate the recommended approach to writing tests for each API endpoint. The tutorial will familiarize you with the fundamental principles and building blocks of Nest.js. In this tutorial, I will lead you through building a RESTful API with Nest.js. Nest.js is compatible with the majority of Express.js middleware. It was inspired by Angular.js and uses Express.js under the hood. Nest.js was created to provide a structural design pattern to the Node.js development world. Nest.js is a scalable and efficient server-side Node.js framework built with TypeScript. Setting up and connecting a Nest.js app.
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