JSON Schema to PHP AST

Installation

$ composer require open-code-modeling/json-schema-to-php-ast --dev

Usage

{
 "$schema": "http://json-schema.org/draft-07/schema#",
 "definitions": {
 "address": {
 "type": "object",
 "properties": {
 "street_address": {
 "type": "string"
 },
 "city": {
 "type": ["string", "null"]
 },
 "federal_state": {
 "$ref": "#/definitions/state"
 }
 },
 "required": [
 "street_address",
 "city",
 "federal_state"
 ]
 },
 "state": {
 "type": "string",
 "enum": ["NY", "DC"]
 }
 },
 "type": "object",
 "properties": {
 "billing_address": {
 "$ref": "#/definitions/address"
 },
 "shipping_addresses": {
 "type": "array",
 "items": {
 "$ref": "#/definitions/address"
 }
 }
 },
 "required": [
 "billing_address"
 ]
}

<?php
use OpenCodeModeling\CodeAst\Builder\FileCollection;
use OpenCodeModeling\CodeAst\Package\ClassInfoList;
use OpenCodeModeling\CodeAst\Package\Psr4Info;
use OpenCodeModeling\Filter\FilterFactory;
use OpenCodeModeling\JsonSchemaToPhp\Type\Type;
use OpenCodeModeling\JsonSchemaToPhpAst\ValueObjectFactory;
$parser = (new PhpParser\ParserFactory())->create(PhpParser\ParserFactory::ONLY_PHP7);
$printer = new PhpParser\PrettyPrinter\Standard(['shortArraySyntax' => true]);
// configure your Composer info
// FilterFactory of library open-code-modeling/php-filter is used for sake of brevity
$classInfoList = new ClassInfoList(
 ...Psr4Info::fromComposer(
 'src/',
 file_get_contents('composer.json'),
 FilterFactory::directoryToNamespaceFilter(),
 FilterFactory::namespaceToDirectoryFilter(),
 )
);
$valueObjectFactory = new ValueObjectFactory(
 $classInfoList,
 $parser,
 $printer,
 true,
 FilterFactory::classNameFilter(),
 FilterFactory::propertyNameFilter(),
 FilterFactory::methodNameFilter(),
 FilterFactory::constantNameFilter(),
 FilterFactory::constantValueFilter()
);
// $json contains the json string from above
$decodedJson = \json_decode($json, true, 512, \JSON_BIGINT_AS_STRING | \JSON_THROW_ON_ERROR);
$typeSet = Type::fromDefinition($decodedJson);
$srcFolder = 'tmp/';
$fileCollection = FileCollection::emptyList();
$classBuilder = ClassBuilder::fromScratch('Order', 'YourNamespaceFromComposer')->setFinal(true);
$valueObjectFactory->generateClasses($classBuilder, $fileCollection, $typeSet, $srcFolder);
// $fileCollection contains 6 classes
// now let's add constants and getter methods of properties for non value objects
$valueObjectFactory->addGetterMethodsForProperties($fileCollection, true);
$valueObjectFactory->addClassConstantsForProperties($fileCollection);
// generate PHP code
$files = $valueObjectFactory->generateFiles($fileCollection);
foreach ($files as $filename => $code) {
 // store PHP code to filesystem
}