Serverless has gained popularity due to ease of development. It also eliminates infrastructure management tasks such as server or cluster provisioning, patching, operating system maintenance, and capacity provisioning. But person who is new to this may face problem in managing code and that leads to difficult in refactoring and scaling APIs.
Find out more --> https://aws.amazon.com/serverless/
Here i have tried to use microservice concept in serverless. We have collection of loosely coupled services (say first-service, second-service, etc) which uses asynchronous messaging for inter-service communication. In AWS we can make use of SNS(Simple Notification Service) and SQS(Simple Queue Service) to achieve that.
- NodeJS
- TypeScript
- AWS Resources (Lambda function, DynamoDB, SNS, SQS, API Gateway)
- Basic of CloudFormation
- Serverless Framework
In the root directory we have serverless.yml where we have all the configuration for the provider. Separate environment variables for dev and prod in dev.env.yml and prod.env.yml respectively. And configuration for the services are in there respective directory.
To start a service
$ npx serverless offline start --stage dev --service first-service --port 3000OR
$ npm start -- --service first-service --port 3004OR to start all the service at once for local testing you can make use of lambda-serverless.ts. This uses reverse proxy to route to different service based on the routes.
$ npm run offlineNote: This project is build on typescript so do not forget to start typescript compiler before starting any services.
$ npm run watch
In case of any problem in the boilerplate open an issue here at https://github.com/navneetlal/painless-aws-boilerplate/issues