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Serverless Architecture Using AWS Lambda as a Microservice

😎 Imagine in few minutes you can launch your serverless microservice with the help of using AWS lambda, API gateway to offer fastest path to production to help engineers efficiently build and scale applications. 

One of the biggest advantage of using AWS Lambda cloud service is that it can be deployed independently. Also, offers the opportunity to work many other different technologies and last but not the least but using this can quickly increase scalability and high availability of system. 

AWS Lambda as a Microservice

AWS Lambda is a service that allows you to run your functions in the cloud completely Serverless and eliminates the operational complexity. You upload your code to Lambda, and it takes care of everything needed to run and scale its execution and fulfils conditions and high availability requirements. Its easy to deploy your builds and service related configurations in the lambda function. 

It integrates with the API gateway, allows you to invoke functions with the API calls, make sure your resource invoke your lambda function. And this makes your architecture completely Serverless. There are several ways to invoke a function: an event, another AWS service, or another service or application.
  



See the figure above that shows the architecture of a Serverless microservice with AWS Lambda, where the entire service is built from managed services, which removing the architectural overhead of designing for scaling and high availability, and eliminating the operational efforts of operating and monitoring the microservice’s underlying aws infrastructure.

Serverless Microservices 

In microservices architecture, each of the application components is decoupled and deployed and run independently. The API gateway helps you to manage your resources, the resource is integrated with AWS lambda so that AWS Lambda build execute and hence completes their business logic and successfully complete their transaction request. 

In general, a microservices environment can introduce the following difficulties:
  • To establish microservice, a team is required to do the repeated work to setup infra
  • Problems are faced while optimizing server density and usage
  • Deal with the complexity of running multiple versions of microservices, all at the same time
  • Client-side code is required to integrate this with many services.
Creating microservices using Serverless resources, we don't have to face these types of problems as they AWS handles all these cases through their infrastructure. Hence it simplifies the deployment process and get high available systems. 

The Serverless Microservices reduces the effort for the creation of each subsequent microservice. API Gateway even allows for the cloning of existing APIs, and using the Lambda functions in other accounts. There is less exhaustion of resources and the system is up and running always. 

An example of Designing AWS Architectures


Source Code:

Get the Source Code from Serverless Microservices GitHub — Clone or fork this repository and also you can write your business logic similarly. If you find or ask anything you can directly open issue on repository.
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