/aws-serverless-developer-experience-workshop-java

This repository contains the reference architecture implementation for the AWS Serverless Developer Experience workshop in Java

Primary LanguageJavaMIT No AttributionMIT-0

AWS Serverless Developer Experience Workshop Reference Architecture

AWS Serverless Developer Experience workshop reference architecture (Java)

This repository contains the reference architecture for the AWS Serverless Developer Experience workshop.

The AWS Serverless Developer Experience workshop provides you with an immersive experience of a serverless developer. The goal is to provide you with an hands-on experience building a serverless solution using the AWS Serverless Application Model (AWS SAM) and AWS SAM CLI.

Along the way, we want to demonstrate principles of event-driven distributed architecture, orchestration, and serverless observability, and how to apply them in code.

We'll also explore open-source tools, core features of AWS Lambda Powertools, and serverless CI/CD deployments. You can choose choose to run this workshop in a runtime of your choice — Python, TypeScript, Java, and .NET — and work with your own developer setup or use AWS Cloud9 to build the services.

This workshop will take approximately 4 hours to complete. We are assuming that you have some practical development skills in one of the supported runtimes, and are familiar with some of the services that we will use in this solution which include: Amazon API Gateway, AWS Lambda, Amazon EventBridge, AWS Step Functions and Amazon DynamoDB.

About the Architecture

AWS Serverless Developer Experience Workshop Reference Architecture

Our use case is based on a real estate company called Unicorn Properties.

As a real estate agency, Unicorn Properties needs to manage the publishing of new property listings and sale contracts linked to individual properties, and provide a way for their customers to view approved property listings.

To support their needs, Unicorn Properties have adopted a serverless, event-driven approach to designing their architecture. This architecture is centred around two primary domains: boundaries–Contracts (managed by the Contracts Service) and Properties (which are managed by the Properties Web and Properties Services).

The Contracts Service is a simplified service that manages the contractual relationship between a seller of a property and Unicorn Properties. Contracts are drawn up that define the property for sale, the terms and conditions that Unicorn Properties sets, and how much it will cost the seller to engage the services of the agency.

The Properties Web service manages the details of a property listing to be published on the Unicorn Properties website. Every property listing has an address, a sale price, a description of the property, and some photos that members of the public can look at to get them interested in purchasing the property. Only properties that have been approved for publication can be made visible to the public.

The Properties Service approves a listing. This service implements a workflow that checks for the existence of a contract, makes sure that the content and the images are safe to publish, and finally checks that the contract has been approved. We don’t want to publish a property until we have an approved contract!

Credits

Throughout this workshop we wanted to introduce you to some Open Source tools that can help you build serverless applications. This is not an exhaustive list, just a small selection of what we will be using in the workshop.

Many thanks to all the AWS teams and community builders who have contributed to this list:

Tools Description Download / Installation Instructions
cfn-lint Validate AWS CloudFormation yaml/json templates against the AWS CloudFormation Resource Specification and additional checks. https://github.com/aws-cloudformation/cfn-lint
cfn-lint-serverless Compilation of rules to validate infrastructure-as-code templates against recommended practices for serverless applications. https://github.com/awslabs/serverless-rules
@mhlabs/iam-policies-cli CLI for generating AWS IAM policy documents or SAM policy templates based on the JSON definition used in the AWS Policy Generator. https://github.com/mhlabs/iam-policies-cli
@mhlabs/evb-cli Pattern generator and debugging tool for Amazon EventBridge https://github.com/mhlabs/evb-cli