darpanpathak / AWS-SAM-Lambda-dynamoDB

A small example of creating and deploying a microservice using AWS, SAM, Lambda, API Gateway and dynamoDB.

Introduction

This git repository is an example microservice to perform CRUD operation. This microservice is deployed on AWS Lamnda and API Gateway using SAM(Serverless application model). SAM cli is a great tool to manage your AWS infrastructure and achieve IaC(Infrastructure as Code) model.

Prerequisite

• Knowledge of NodeJs, Basic Javascript and api development
• Understanding of AWS services
• AWS CLI installed and configured
• SAM CLI installed and configured
• NodeJs 8.10 or greater installed on local machine

Highlights

• Use of SAM Templates to create infra and deploy code
• Create a serverless lambda function in NodeJs
• Store data in dynamoDB using NodeJs and lambda function
• Use of API Gateway AWS service to trigger lambda function

Commands

Once you clone the repository or create your own function and template following commands are required to package and deploy the application.

• Packaging - sam package --template-file template.yml --output-template-file package.yml --s3-bucket YOUR_BUCKET_NAME
• Deploying - sam deploy --template-file package.yml --stack-name YOUR_STACK_NAME --capabilities CAPABILITY_IAM

For example:

• Packaging - sam package --template-file template.yml --output-template-file package.yml --s3-bucket inkloft-backend-products
• Deploying - sam deploy --template-file package.yml --stack-name inkloft-backend-products --capabilities CAPABILITY_IAM