This project is an example of REST API written in PHP 7.4 to handle currency conversion. It is result of the Hurb Challenge Bravo. The project makes use of Swoole to handle at least 1000 requests per second. It also uses Crypto Compare API to fetch data from.

It basically has two endpoints that allow us to perform some CRUD operations:

• /v1/exchange/{fromCurrency}/{toCurrency}/{amount}
• /v1/currency

The endpoints are protected by authorization header tokens in the following format X-Api-Key: uuid. It has two types of tokens defined in the file .env on project's root folder. One token is to perform some "Admin level" operations, such as create, update and delete. And the other one is to perform only read operations.

Note: Tokens committed to this repo for are for testing purpose only. For production environment, credentials should not be available in your version control. Note: Tokens have rate-limit params defined. You can configure them in config/autoload/api-credentials.global.php file. By default, it allow us to perform 2000 requests per second.

The endpoint's documentation is located in public/doc folder. It was written on top of OpenAPI v3 notation.

Using it with Docker

1. docker-compose up
2. docker exec -t challenge-bravo-php bash -c 'PHINX_DBHOST=challenge-bravo-mysql PHINX_DBUSER=mario PHINX_DBPASS=mariocosta ./vendor/bin/phinx migrate'
3. Make calls to the endpoints via Postman or similar in the following address 0.0.0.0:8080/health to check if it's live.

** Using without docker. OBS: PHP 7.4, MySQL, and Swoole extensions are required**

1. Rename the file .env.dist to .env and fill out the required info
2. Run composer install
3. Run ./vendor/bin/mezzio-swoole start or composer serve
4. Make calls to the endpoints via Postman or similar in the following address 0.0.0.0:8080/v1/health

There is a configured pipeline in SemaphoreCI to run some code style validations (PHPCS and PHPStan) and Unit tests.

Drop me an e-mail

• Fetch api tokens from database (cached) in order to keep it more easily to maintain
• Create more unit tests to have a 100% coverage score.