Building a Serverless Blog Application with NestJS and DynamoDB
In this article, we’ll explore how to build a serverless blog application using NestJS and DynamoDB. We’ll discuss the benefits of using a serverless framework and how to integrate it with a NoSQL database like DynamoDB.
What is NestJS?
NestJS is a Node.js framework for building server-side applications that are fast, scalable, and loosely linked. It uses solid HTTP server frameworks like Express or Fastify and provides an overlay to abstract them and expose their APIs directly to developers.
What is DynamoDB?
DynamoDB is a fully managed, proprietary NoSQL database service offered by AWS. It supports key-value and document data formats and provides a data architecture comparable to Dynamo.
What is the Serverless Framework?
The Serverless Framework is an open-source CLI that allows you to design, deploy, debug, and protect serverless apps with minimal complexity and expense. It provides infrastructure resources from AWS, Azure, and Google.
Getting Started
To start building our serverless blog application, we need to set up an AWS account and install the Serverless Framework globally. We’ll also need to install the NestJS CLI and create a new NestJS application.
Configuring the Serverless Framework
We’ll create a serverless.yml file in the project’s root directory to configure the Serverless Framework. We’ll specify the version of the Serverless Framework, plugins, and cloud provider configuration.
Converting our Application to AWS Lambda
We’ll convert our NestJS application to an AWS Lambda function by mapping our application to an Express app and converting our Express application into an AWS Lambda function.
Creating a Blog Service
We’ll create a blog service to add some records to our DynamoDB database. We’ll use the AWS SDK to interact with our DynamoDB and create CRUD operations.
Creating Blog Controllers
We’ll define the endpoints to access our blog services by creating blog controllers. We’ll define the blog routes and build and run the application.
Testing the Application
We’ll test our application by running it locally and verifying that everything works as expected.
Deploying the Application
We’ll deploy our application using the Serverless Framework. We’ll use the deploy command to deploy our application to AWS.
Conclusion
In this article, we learned how to build a serverless blog application using NestJS and DynamoDB. We discussed the benefits of using a serverless framework and how to integrate it with a NoSQL database like DynamoDB. We also deployed our application using the Serverless Framework.