Symfony API Example

A small example of how an API could be written in Symfony. This project allow a user to receive/add/update/delete cars.

All output is standardized so that it is easy to parse in any language on any environment.

It now also features an implementation of JSON Web Tokens for authenticating users.

Features

• JWT Authentication
  • GET token
• Data retrieval
  • GET all entities
  • GET entity by id
• Data manipulation
  • POST new entity
  • PATCH update existing entity
  • DELETE remove existing entity

Important!

There are two SSH keys in /var/jwt. These encrypt all the tokens we send and read. I have committed them for the ease of use and testing, but remember to ALWAYS generate new ones and keep them secret in your own applications. See the official documentation on how to do this.

Workflow

1. Register user (manually or through fixture. May add easier registration on request)
2. User retrieves token
3. User consumes API
4. Token times out after 10 minutes

URLS

# POST retrieve a token
symfony.app/api/token

# GET car
symfony.app/car

# GET car by id
symfony.app/car/{id}

# POST new car
symfony.app/car

# PATCH update car
symfony.app/car/{id}

# DELETE remove car
symfony.app/car/{id}

Installation

Requirements

• PHP >= 7.1
• Composer
• MySQL >= 5.5

Commands

1. Clone this repo
2. Run composer install
3. Run php bin/console doc:mig:mig
4. Run php bin/console doc:fixtures:load

Testing

1. Run php bin/console doc:mig:mig --env=test
2. Run composer test

For more information which tests are run, please refer to the "test" section of composer.json. You can run the given tests separately, i.e. composer behat or composer phpunit

Technical Docs

Error messages

All error messages have the same format, so they can be easily parsed in any language:

{
    "error": {
        "code": 401,
        "message": "Not privileged to request the resource."
    }
}

GET a token

Request

$ curl --request POST \
    --url http://symfony.app/api/token \
    --header 'password: unsafepassword' \
    --header 'username: admin'

Response

{
	"token": "eyJhbGciOiJSUzI1NiJ9.eyJ1c2VybmFtZSI6ImFkbWluIiwiZXhwIjoxNDg0NTgyNTc4LCJpYXQiOjE0ODQ1ODE5Nzh9.t31C2jYVHWybZ2szEFwkGEzspYFyg9BlTyolnYtznnm8eFPIZI00hZPYCPFX2Ka7-gBFb3keM_2WVhfXKvreQpaFzge2HQ1lfMgVBCCUsxoiESUo6qCkna0Vb6ttv1qLyBRAqui_ijjANaAqEgO648vnIP0BMOYkjzw9-jNJNRQ25Bv4Y7bc_LGcGJQc2wGlg5sxWqMYhHwwCncBNPpdwTj9e9WULGBv0U1Hc_8I5eCrQFrCJGeQaKnEiy1GKXdRCSqwfCqEDrbXhgkBGygUbPGAYrfU8SnrtxFRI_EN92PByo2rjpy_M5gL-Md6czN5xDSxJHmswValR-I1ga1WkqEf194erD7KJmRRXUpz1HwNDWPDm1RJfzVgj0vTlW7kCKdLqGkkvaVnPuToxLhAPnp-kfdFkprtND0J8CajdiKaYVia4DwOjK4w_lbnfLMzZp6s6o7eKQ4h7_vkZAGu_DA0f6fVOuGQc5cqef_1oMqbKKrhVWL4xMg9wovpkAm_AF-iii-cjaXejArKzZ_4sKku5fc7BleSIHH0sXXLWlE_bI6ftc3AAxTl1buIOwpqrKDwlU_YfO8d9YkuZCRG-I0B8Nu0hfW6qh3jwIaqlqaAP6ZqAfAk8Sd6cQw8eqSqjhFjtSKA2J-DYn4lP2DC-0-_6ydj8sl3pB-DV7MEVVI"
}

GET all entities

Request

$ curl --request GET \
    --url http://symfony.app/car \
    --header 'Authorization: Bearer {token}'

Response

[
    {
        "id": 1,
        "brand": "Ford",
        "name": "Mustang",
        "year": 1972
    },
    {
        "id": 2,
        "brand": "Toyota",
        "name": "Corolla",
        "year": 1983
    },
    
]

GET entity by id

Request

$ curl --request GET \
    --url http://symfony.app/car/{id} \
    --header 'Authorization: Bearer {token}'

Response

{
    "id": 1,
    "brand": "Ford",
    "name": "Mustang",
    "year": 1972
}

POST new entity

Request

$ curl --request POST \
    --url http://symfony.app/car \
    --header 'content-type: application/json' \
    --header 'Authorization: Bearer {token}'
    --data '{
	  "brand": "Ford",
	  "name": "Mustang",
	  "year": 1972
  }'

Response

{
    "id": 1,
    "brand": "Ford",
    "name": "Mustang",
    "year": 1972
}

PATCH update existing entity

Request

$ curl --request PATCH \
    --url http://symfony.app/car/{id} \
    --header 'content-type: application/json' \
    --header 'Authorization: Bearer {token} \
    --data '{
      "year": 2016
  }'

Response

{
    "id": 1,
    "brand": "Ford",
    "name": "Mustang",
    "year": 2016
}

DELETE remove existing entity

Request

$ curl --request DELETE \
    --url http://symfony.app/car/{id} \
    --header 'Authorization: Bearer {token}

Response

{
    "message": "Car deleted"
}