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Laravel OpenAPI toolkit

This toolkit provides rules for PHPStan and utilities for working with OpenAPI specifications in Laravel framework.

It should help you maintain documentation of your codebase more easily and lower data duplication as much as possible.

Toolkit uses PHPStan to statically check code for errors, leading to Swagger/OpenAPI specification errors.

!! Only OpenApi attributes with named arguments is supported and checked !!

Requirements

• PHP 8.3 or higher
• PHPStan
• Laravel 11.x or higher
• Composer

Installation

Install the package via composer:

Add rules to phpstan.neon config:

Run phpstan to analyze your project:

Helper classes

Toolkit includes helper class to ease and minimize duplication while defining API documentation in Laravel framework. Usage of them is completely optional, although is recomended.

• Operation Helpers
• Response Helpers
• Request Body Helpers

Rules

Quick overview of rules provided in toolkit and their functions. List of incomplete and suspect for changes.

Schemas - OA\Schema

• OpenApiTools\PHPStan\Rules\OpenApi\Schema\PropertiesRule
  • Validates property type
  • Validates property format
  • Validates property case
  • Validates property date type & format
  • Validated property ref class to have schema
• OpenApiTools\PHPStan\Rules\OpenApi\Schema\RequiredPropertiesRule
  • Validates if required properties defined in properties list
• OpenApiTools\PHPStan\Rules\OpenApi\Schema\SchemaNameRule
  • Validates naming convention

Operation - OA\Get, OA\Post,OA\Put,OA\Patch,OA\Delete

• OpenApiTools\PHPStan\Rules\OpenApi\Operation\ControllerInvokeMethodRule
  • Validates __invoke method has correct schema scope
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\ControllerMethodParametersRule
  • Validates if operation attributes has methods
  • Validates method parameter types
  • Validates method parameters vs. operation path parameters
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\ControllerMethodsRule
  • Validates controller method count if __invoke is used
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\DescriptionRule
  • Validates description length
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\PathRule
  • Validates path leading & trailing slash
  • Validates whether path parameters defined in operation schema parameters
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\RequestBodyReferenceRule
  • Validates whether requestBody is set when FormRequest instance provided in method parameters
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\ResponsesRule
  • Validates if Success response is provided
  • Validates if Error response is provided
  • Validates if Authorization response is provided
  • Validates if Unprocessable response is provided when FormRequest instance provided in method parameters
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\SummaryRule
  • Validates summary optimal length
• OpenApiTools\PHPStan\Rules\OpenApi\Operation\TagCountRule
  • Validates tags count

Form Request - Illuminate\Foundation\Http\FormRequest

• OpenApiTools\PHPStan\Rules\Laravel\FormRequest\EnumRule
  • Validates whether enum parameter is set in OA\Property, depending on validation rules
• OpenApiTools\PHPStan\Rules\Laravel\FormRequest\MissingSchemaPropertiesRule
  • Validates whether properties set
• OpenApiTools\PHPStan\Rules\Laravel\FormRequest\MissingSchemaRule
  • Validates whether OA\Schema attribute is set
• OpenApiTools\PHPStan\Rules\Laravel\FormRequest\NullableRule
  • Validates whether nullable parameter is set in OA\Property, depending on validation rules
• OpenApiTools\PHPStan\Rules\Laravel\FormRequest\RequiredRule
  • Validates whether required parameter is set in OA\Property, depending on validation rules

Json Resource - Illuminate\Http\Resources\Json\JsonResource

• OpenApiTools\PHPStan\Rules\Laravel\Resource\BooleanPropertyRule
  • Validates boolean property to match isset/haser naming convetion - is_something, has_something
• OpenApiTools\PHPStan\Rules\Laravel\Resource\MissingReturnPropertyRule
  • Validates whether OA\Schema property returned in toArray() method (plain array return only)
• OpenApiTools\PHPStan\Rules\Laravel\Resource\MissingSchemaPropertiesRule
  • Validates whether OA\Schema contains properties parameter (plain array return only)
• OpenApiTools\PHPStan\Rules\Laravel\Resource\MissingSchemaPropertyRule
  • Validates whether returned property is in OA\Schema properties (plain array return only)

Customizations

Ignoring rules

You can ignore a specific rule one time, all you need to do is to add a doc comment where this error happens. Example how to ignore openApiTools.missingRequestSchemaAttribute in a specific file:

If you want to ignore rules to specific files or file pattern, add ignoreErrors to your phpstan.neon. Example, how to ignore openApiTools.missingRequestSchemaAttribute errors:

More on error ignoring - PHPStan documentation

Schema naming rule override

By default, schema names should be named by namespaces separated by dot, for example Laravel resource App\Http\Resources\SomeController\SomeResource should be named Resources.SomeController.SomeResource, but if you want to change to your customized rule, you can do so by specifying class, implementing SchemaNameGeneratorInterface in your phpstan.neon. For example:

Property naming rule override

By default, property names should be named using snake_case naming convention, but if you want to change to camelCase or your customized rule, you can do so by specifying class, implementing PropertyNameGeneratorInterface in your phpstan.neon. For example: