My Theresa Test

All of this you must run into app directory

First step to run app

You must have docker running on your machine

Run tests

important integration tests works with a docker container inside of .it directory

make test

Run application

make app-up

Down application

make app-down

Workaround if you can't run with commands above

Run tests

1. cd .it
2. docker-compose up
3. go test ./...

Run Application

1. First stop docker container of tests cd .it && docker-compose down
2. In app root directory docker-compose up

Ready! You can test if all went good with curl -X GET 127.0.0.1:8080/products

###Steps

Infrastructure with docker compose:

• Created a postgres database from an image
• Simple API with a “hello world” response from an endpoint and db connection for very basic infrastructure test from url
• Created a migration.sql file that will run after postgres image is up to create database, tables, and insert the data from the exercise
• Test of db connection

Service API structure:

• A simple structure with a success route from handler to repository
• Creation of requests and responses that will be used in the respective layers.

Repository layer:

• Started with a repository layer creating the sql queries to represent the business needed.
• Created a basic layer of db that will have only queries that will be executed in the repository.
• Filled repository GetProducts method with all necesary to return slice of Product structs
• Creation of environment for integration tests with docker compose and added makefile to throw tests
• Added unit tests for queries and integration tests for repository
• Added app up and down to Makefile, stopping test environment to ensure it will run successfully

Service Layer:

• Created apply discount helper to apply percentage discount to a price
• Logic to get products method in service
• Created discounter struct to manage the discounts logic and fill price struct
• tested with use cases

Handler

• Get Products handler logic
• Made helper function to parse query string to struct request
• I can’t do tests for this, but I would have done integration tests