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yii2-app-api

OpenAPI Spec to API in 3, 2, 1... done!

Yii Framework Application Template for quickly building API-first applications.

Based on yii2-openapi (code generator) and php-openapi (specification reader and validator).

Demo

Overview

This application template does not contain any useful code, it only provides the directory structure for your API project. All the code is generated from an OpenAPI API description file.

When working with this template you follow the API Design-First Approach. So to get started building an API with this application template you need an API description first. If you don't have one yet, you might want to check the following resources first:

• OpenAPI 3.0 tutorial
• OpenAPI Specification Version 3.0.2

If you have an OpenAPI description, you can continue with the next steps:

1. Setup
2. Generate Code

More Docs and Guides can be found in /docs.

Setup

There are two different ways:

• PHP directly on your machine
• Using Docker

PHP directly

Having PHP and a database server installed on your machine, you can run the following commands:

composer create-project php-openapi/yii2-app-api my-api
cd my-api
cp env.php.dist env.php
cp config/components-ENV.local.php config/components-dev.local.php

You need to adjust config/components-dev.local.php to configure your database connection.

After that, run make start and make stop to control the PHP webservers for API and backend.

You may use XDEBUGW=1 to enable xdebug for the webserver, e.g. make XDEBUGW=1 start.

You can now continue with generating code.

Using Docker

You need Docker and Docker Compose installed.

Create the repository:

composer create-project php-openapi/yii2-app-api my-api

For the easiest way you need GNU make, then run:

make start-docker

This uses docker-compose to start docker containers for the API and the backend including a database.

You can now continue with generating code.

Note: If you don't have GNU make, you need to copy the configuration files as in the PHP directly section, then run:

cp docker-compose.override.dist.yml docker-compose.override.yml
docker-compose up -d
docker-compose exec backend-php sh -c 'cd /app && composer install'

Generate Code

At this point you can start generating your API code to play with it by following the instructions below. If you'd like to start a real project instead of just playing around you can find more detailed documentation in "Getting Started"-Section.

Console

Tip: If you use Docker, run make cli before running any of these commands.

Run ./yii gii/api to generate your API code. The --openApiPath parameter specifies the path to your OpenAPI spec file. The following example will generate API code for the OpenAPI petstore example.

./yii gii/api --openApiPath=https://raw.githubusercontent.com/OAI/OpenAPI-Specification/3.0.2/examples/v3.0/petstore-expanded.yaml

Note: If the OpenAPI spec file is present locally on the file system, then openApiPath must be specified as an absolute path, relative paths will not work correctly. On UNIX based OS it must start with /. Example: /home/user/documents/MyProjectOpenAPISpec.yml

Run ./yii gii/api --help for a list of configuration options. You may also adjust the configuration in config/gii-generators.php.

Then set up the database:

./yii migrate/up
./yii faker

Web

To use the web generator, open http://localhost:8338/gii and select the REST API Generator.

Enter the path or URL to the "OpenAPI 3 Spec file", e.g. https://raw.githubusercontent.com/OAI/OpenAPI-Specification/3.0.2/examples/v3.0/petstore-expanded.yaml.

Click "Preview":

Click "Generate" to generate API files.

Then set up the database by running the following commands on the command line:

./yii migrate/up
./yii faker

Try it

cd api
make start

Your API is now available at http://localhost:8337/. Try to access an endpoint of your spec via curl:

$ curl http://localhost:8337/pets
[
    {
        "name": "Eos rerum modi et quaerat voluptatibus.",
        "tag": "Totam in commodi in est nisi nihil aut et."
    },
    {
        "name": "Voluptas quia eos nisi deleniti itaque aspernatur aspernatur.",
        "tag": "Temporibus id culpa dolorem sequi aut."
    },
    {
        "name": "Facere aut similique laboriosam omnis perferendis et.",
        "tag": "Quo harum quo et ea distinctio non quam."
    },
    ...
]

Linting the OpenAPI specification

You can run a linter to check the validity of your OpenAPI specification file:

make lint-js  # run spectral lint
make lint-php # run php-openapi validate
make lint     # run both of the above commands

You can find more information on spectral at https://www.npmjs.com/package/@stoplight/spectral-cli#-documentation-and-community.

Application structure

This application template consists of 3 application tiers:

• api, contains the Yii application for the REST API.
• console, contains the Yii application for console commands, cronjobs or queues (yii command).
• backend, contains the Yii application for a CRUD backend on the API data.

The following list explains the directory structure in more detail:

• api/ - API application tier

  • config/ - configuration for API tier
  • url-rules.php - custom URL rules
  • url-rules.rest.php - URL rules generated from OpenAPI Description
  • components.php - application components
  • app.php - Yii application config (+ overrides for different environments app-*.php)
  • controllers/ - Controller classes generated from OpenAPI Description
  • web/ - public web directory for API application

• backend/ - Backend application tier

  • config/ - configuration for Backend tier
  • components.php - application components
  • app.php - Yii application config (+ overrides for different environments app-*.php)
  • controllers/ - Controller classes
  • views/ - View files
  • web/ - public web directory for Backend application

• common/ - common code files

  • models/ - model classes generated from OpenAPI Description
  • migrations/ - database migrations generated from OpenAPI Description

• config/ - Common configuration for all application tiers

  • components.php - Yii application components (+ overrides for different environments components-*.php)
  • env.php - Environment setup (YII_DEBUG, YII_ENV, path aliases, composer autoloader)
  • events.php - Class wide event listeners
  • gii-generators.php - configuration for the Gii code generator (allows to set default values for the ApiGenerator)
  • params.php - Configuration for Yii::$app->params

• console/ - Console application tier

  • config/ - configuration for Console tier
  • components.php - application components
  • app.php - Yii application config (+ overrides for different environments app-*.php)
• logs/ - log files
• runtime/ - temporary runtime files

Development

Below commands are helpful while developing this project:

Support

Need help with your API project?

Professional support, consulting as well as software development services are available:

https://www.cebe.cc/en/contact

Development of this library is sponsored by cebe.:cloud: "Your Professional Deployment Platform".