Node.js is a popular server-side JavaScript runtime environment that allows developers to build high-performance web applications using the JavaScript language. npm (Node Package Manager) is a very useful tool when deploying Node.js applications. It allows us to manage and install dependencies while providing some convenient commands to manage the application life cycle. In this article, we will explore how to use npm to deploy Node.js applications.
Step 1: Initialize the project
First, we need to create a new Node.js project and initialize it using npm. From the command line, navigate to the project directory and execute the following command:
npm init
This will guide us through the project initialization process, including setting the project name, version number, entry file, etc. Once completed, a file named .config will be generated in the project root directory package.json, containing the project's metadata and dependency information.
Step 2: Install dependencies
Next, we need to install the dependencies required for the project. In package.jsonthe file, you can dependenciesspecify the project's dependencies through fields. For example, if we want to install the Express framework as a dependency of our web application, we can execute the following command:
npm install express
This will download the Express framework and install it in the project's node_modulesdirectory. At the same time, the fields package.jsonin the file dependencieswill be updated automatically.
Step 3: Create entry file
Deploying N