Introduction
This would be a series of articles, in this article, we would talk about the deployment of the NESTJS application on AWS.
It will cover the following things,
- What is NestJS? (covered in the first article)
- Background (covered in the first article)
- Installation(covered in the first article)
- Hands-on Lab – Create a sample NestJS project (covered in the first article)
- In-depth Explanation - Out-of-the-box files(covered in the second article)
- Hands-on Lab – Create custom APIs and connect with the PostgreSQL database in the existing NestJS project (covered in the third article)
- Hands-on Lab –Deploy NestJS application on AWS
Hands-on Lab - Deploy NestJS application on AWS
Open Visual Studio Code with the existing application, create a Procfile for the AWS pipelines to refer to, and see the file and its code –
web : npm run deploy
Once Procfile is created and the deploy command is mentioned there, then we need to create a deploy command in the package.json file, have a look at the below code
"deploy": "npm ci && npm run build && npm run start:prod"
Once, this is done, we would move to main.ts and define the environment variable as PORT and changes in the code, have a look below,
import { NestFactory } from'@nestjs/core';
import { AppModule } from'./app.module';
asyncfunctionbootstrap() {
constapp = awaitNestFactory.create(AppModule);
constport = process.env.PORT || 3000;
awaitapp.listen(port);
}
bootstrap();
Now, execute the following to check if the APIs is working fine or not, below is the command, followed with response
npm run deploy
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