Cart Management: Handle up to 10 unique items (excluding VasItems) and a total of 30 products. The total cart amount should not exceed 500,000 TL.
Item Varieties: Support for different item types like VasItem, DefaultItem, DigitalItem, with specific constraints on quantity and identification.
Digital Items: Restriction on the quantity and specific categorization (CategoryID 7889).
Default Items: Common e-commerce products with pricing rules in relation to VasItems.
VasItems: Represent value-added services, constrained by category and seller ID.
Promotions: Implementation of various discount strategies like SameSellerPromotion, CategoryPromotion, and TotalPricePromotion.

Non-Functional Requirements

Reliability: Robust error handling and consistent performance.
Usability: Simple and intuitive http-request-based interaction.
Maintainability: Code should adhere to SOLID principles, Domain Driven Design and be easy to modify or extend.
Performance: Optimized for fast processing of cart operations.

Prerequisites

Direct Execution:
- After building, you can run the application using:
```
make run
```
- This will start the application using the compiled binary.
Development Mode:
- For development purposes, you can run the application directly with Go using:
```
make dev
```
- This allows you to run the application without compiling it first.
Docker:
- To run the application in a Docker container, use:
```
make up
```
- This will build and run the application in a Docker container as defined in your docker-compose file.
- To stop and remove the container, use:
```
make down
```

Persistence Tests:
- To run persistence layer tests, execute:
```
make persistance-tests
```
- This will run tests located in the ./internal/infrastructure/persistence directory.
Application Tests:
- For application layer tests, execute:
```
make application-tests
```
- This will run tests in the ./internal/application directory.

Swagger

Grafana