oluwasegunowa / verivox-tarrif-comparison

Verivox task

Tarrif Comparison

.NET Core 5.0

Task description

Find below desgin pattern, frameworks and tools used in executing the task given;

1. Domain Driven Design & Repository Pattern
2. Documentation - Swagger
3. Logging - Serilog
4. Database - Postgress
5. Unit Testing - xUnit, Moq
6. Global exception handling

Layers

For the task, I tried to Keep It Simple by using folders to separate the layers.

1. Presentation -> Controllers, Views (but none for this project)
2. Application -> Business Use cases
3. Domain -> Global Error Handling, Extensions, Entities etx
4. Infrastructure -> Connection to database, third party integrations (none in this case)

Assumptions based on project understanding

1. Supplied Consumption must be greater than 0 (Exception is thrown if not)
2. More products can be created in future To do that, implement ITarrifModel, provide the name and calculation for the new tarrif model. The follwing are the default Model

• BasicConsumptionTarrif
• PackagedConsumptionTarrif

3. The product is to return Annual cost and tarrif name ( I will suggest, the consumption is also returned)

Setup: Check the following to setup the project

1. Provide valid postgress database connection string and run the appliaction for the database to be automatically created.

Host={Server_Here};user id={Database_User};password={Database_Password};database={Database_Name};Port=5432

Provide a valid database connection string, when you run the application the database is created automatically.

2. You can also decide to run migrations using the following; dotnet ef migrations add Initial dotnet ef database update

Running the application

dotnet run

Running Test

A total of 9 test cases were written and all executed successfully. dotnet test