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  • Writer's pictureMiroslav Šalković

Serverless App running on AWS Lambda

Updated: Feb 9, 2023



Introduction


Serverless computing is a cloud computing execution model in which the cloud provider dynamically manages the allocation of machine resources. It is a form of utility computing, meaning the user pays only for the resources they use. Serverless computing is becoming increasingly popular among developers due to its ease of use and scalability.


In this article, we’ll discuss building a serverless web application using the Node.js serverless backend deployed on Amazon Web Services (AWS) Lambda service. We’ll look at the steps involved in setting up the environment, writing the code and deploying the application.


Setting Up the Environment


Before we can begin building the serverless web application, we need to set up the environment. This involves creating an AWS account, setting up the AWS command line interface (CLI) and configuring the AWS Lambda service.


Creating an AWS Account


The first step is to create an AWS account. This will provide you with access to the AWS services, including Lambda. To create an account, visit the AWS website and follow the instructions.


Setting up the AWS CLI


The next step is to set up the AWS CLI. This will allow us to manage our AWS services from the command line. To do this, we need to install the AWS CLI and configure it with our AWS credentials.


Configuring the AWS Lambda Service


Once we’ve set up the AWS CLI, we can configure the AWS Lambda service. This involves creating a Lambda function, setting up the environment variables, and setting up the IAM roles.


Writing the Code


Once the environment is set up, we can begin writing the code for our serverless web application. We’ll use Node.js as our programming language and the Serverless framework to deploy our application.


The Serverless framework is an open-source project that allows us to easily create and deploy serverless applications. It provides a simple way to define our application’s architecture and deploy it to the cloud.


Deploying the Application


Once the code is written, we can deploy our application to the cloud. To do this, we’ll use the Serverless framework to deploy our application to AWS Lambda. The Serverless framework will package up our code and deploy it to AWS Lambda. It will also set up the necessary IAM roles and environment variables.


Conclusion


In this article, we discussed building a serverless web application using the Node.js serverless backend deployed on Amazon Web Services (AWS) Lambda service. We looked at the steps involved in setting up the environment, writing the code and deploying the application. Serverless computing is becoming increasingly popular among developers due to its ease of use and scalability. With the help of the Serverless framework, it’s easy to deploy serverless applications to the cloud. We hope this article has helped give you an overview of how to build a serverless web application using Node.js serverless backend deployed on AWS Lambda service.

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