This is an example of a web application written in C#. The application uses CircleCI to deploy to Heroku. View the application here: https://csharp-web-app-example.herokuapp.com
The application has been split in to multiple projects
This is the base service that handles the business logic of processing requests for triangles. Each use case is split in to it's own name space to improve encapsulation and maintainability.
Contains the domain model for the problem
The vertices within a Triangle are always ordered from top left to bottom right, through left to right scanning. This allows Triangles to be easily compared.
This case covers the first requirement to allow the vertices of a triangle within the configured grid to be looked up by the position defined as row and column. The row is specified as a char, and column as int as per the business requirements
The service depends on a Repository to provide the triangle requested. This is handled using DI. The response from the service is specific to the use case, so the required details are mapped to a DTO using AutoMapper to reduce risk of typos and ease updating code.
This is pretty much just the reverse of the above case, and follows much the same rules.
This provides an implementation of the Repositories required by Triangles. This specific implementation calculates the responses based on its configuration. This can therefore be easily replaced with a different implementation without affecting the Triangles project at all.
This is the .NET application that handles the incoming HTTP requests and converts them to calls to the Triangles services. This is mostly wiring and does not have any business logic.
This is used to convert the query string parameters on the Find request to an expected structure.
This is used to check the request is valid before making the controller request, i.e. it ensures that the request conforms to the required structure.
This project also contains a basic single page website at its route to assist in exercising the API. The website uses Bootstrap for layout and leverages JQuery to access the API.
Unit testing is done on the Triangles and CalculatedTriangleRepo projects to cover key business logic. Classes purely involved in wiring .NET do not have associated unit tests as they do not have any business logic.
Application uses .Net 2.2 Core, which will need to be installed to run.
launchSettings.json is provided to allow running of the application in development.
A Dockerfile is present as used by CircleCI to build a container containing the application.
Along with the configuration at .circleci/config.yml this is used to automatically deploy to Heroku