Running the Application

Here is the detailed description of each step to run the CodeChat API application in different modes:

1. Copying the Environment Configuration File:

   cp .env.dev .env
   • This command copies the .env.dev file to a new file called .env. The .env file is used by the application to load the environment variables necessary for execution. Typically, the .env.dev file contains settings suitable for the development environment.

2. Development Mode:

   npm run start:dev
   • This command runs the application in development mode. In general, in development mode, the application can include additional debugging tools and automatically reload when files are changed. The start:dev script is defined in the package.json file and specifies how the application should be started in this mode.

3. Production Mode:

   npm run build
   npm run start:prod
   • The npm run build command compiles the application, optimizing it for the production environment. This process may include code minification, resource optimization, among others.
   • After compilation, npm run start:prod starts the application in production mode. This mode is optimized for performance and security and is the recommended mode for production environments.

4. Using PM2:

   npm run build
   pm2 start 'npm run start:prod' --name CodeChat_V2
   • This set of commands first compiles the application for production (as described above).
   • Then pm2 start 'npm run start:prod' --name CodeChat_V2 starts the application using PM2, a process manager for Node.js applications. PM2 helps keep the application online by automatically restarting it in case of failures. The --name CodeChat_V2 parameter gives an identifiable name to the process, which is useful for management and monitoring.

These commands ensure that the application runs properly in both development and production environments, providing tools to manage and optimize execution.