Simple Example for an API build with symfony and valinor

Run the app

Install dependencies

composer install

Start the app (symfony cli needed)

symfony server:start

Make a Request

Make a http POST request with a client of your choice on http://localhost:8000/books

Payload:

{
  "title": "Advaned Web Application Infrastructure",
  "description": "The missing manual for making your web applications future-proof", 
  "author": "Matthias Noback",
  "isbn": 9789082120165,
  "links": [
    {
      "href": "https://matthiasnoback.nl/book/advanced-web-application-architecture/",
      "title": "matthiasnoback.nl"
    }
  ]
}

How it works

First we have a simple App\Controller\CreateBookController to create a book via POST on /books

The request data is validated and serialized to the CreateBookDto via the App\Valinor\ValinorResolver. The resolver validates the structure first, then serializes the data into the specified DTO class and finally validates the content via the symfony validator.

Any structural or content related errors are collected and then thrown as MappingError or ViolationException. These Exceptions are translated to corresponding HTTP error responses in the App\Valinor\ValinorExceptionListener.

The whole example comes with functional tests using snapshot files, which give good impressions over the actual responses this approach produces. snapshot files stored at tests/Functional/__snapshots__/.

Tests

Tests can be executed via

bin/phpunit