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<?php |
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require_once __DIR__ . '/../../vendor/autoload.php'; |
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use GraphQL\Type\Definition\ObjectType; |
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use GraphQL\Type\Definition\InputObjectType; |
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use GraphQL\Type\Definition\Type; |
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use GraphQL\Type\Schema; |
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use GraphQL\GraphQL; |
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use GraphQL\Type\Definition\ValidatedFieldDefinition; |
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$authors = [ |
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1 => [ |
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'id' => 1, |
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'name'=> 'Cormac McCarthy', |
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'deceased' => false |
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], |
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2 => [ |
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'id' => 2, |
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'name' => 'J.D.Salinger', |
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'deceased' => true |
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], |
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]; |
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class AuthorType extends ObjectType { |
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public function __construct() |
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{ |
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parent::__construct([ |
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'fields' => [ |
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'id' => [ |
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'type' => Type::id(), |
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'resolve' => function($author) { |
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return $author['id']; |
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} |
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], |
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'name' => [ |
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'type' => Type::string(), |
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'resolve' => function($author) { |
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return $author['name']; |
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} |
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] |
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] |
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]); |
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} |
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} |
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class AuthorAttributes extends InputObjectType { |
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public function __construct() |
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{ |
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parent::__construct([ |
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'fields' => [ |
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'name' => [ |
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'type' => Type::string(), |
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'errorCodes' => [ |
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'nameTooLong', |
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'nameNotUnique' |
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], |
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'validate' => function(string $name) { |
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global $authors; |
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if(strlen($name) > 15) { |
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return ['nameTooLong', "Name is too long; please keep it under 15 characters."]; |
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} |
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if(array_search($name, array_column($authors, "name")) !== false) { |
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return ['nameNotUnique', 'That name is already in use']; |
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} |
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return 0; |
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} |
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], |
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'age' => [ |
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'type' => Type::int(), |
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'errorCodes' => [ |
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'invalidAge' |
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], |
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'validate' => function(int $age) { |
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if($age <= 0) { |
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return ['invalidAge', "Invalid Age; must be positive"]; |
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} |
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return 0; |
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} |
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] |
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] |
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]); |
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} |
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} |
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90
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$authorType = new AuthorType(); |
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92
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try { |
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$mutationType = new ObjectType([ |
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'name' => 'Mutation', |
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'fields' => [ |
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'updateAuthor' => new ValidatedFieldDefinition([ |
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'name' => 'updateAuthor', |
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'type' => $authorType, |
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'args' => [ |
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'authorId' => [ |
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'type' => Type::id(), |
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'errorCodes' => [ |
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'unknownAuthor', |
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'deceasedAuthor' |
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], |
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'validate' => function(string $authorId) use ($authors) { |
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if (!isset($authors[$authorId])) { |
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return ['unknownAuthor', "We have no record of that author"]; |
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} |
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return 0; |
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} |
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], |
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'attributes' => [ |
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'type' => new AuthorAttributes() |
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] |
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], |
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'resolve' => function ($value, $args) use ($authors) { |
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$authorId = $args['authorId']; |
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121
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// AuthorProvider::update($authorId, $args['attributes']); |
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return $authors[$authorId]; |
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}, |
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]), |
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], |
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]); |
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128
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$queryType = new ObjectType([ |
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'name'=>'Query', |
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'fields'=>[ |
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'author'=> [ |
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'type' => $authorType, |
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"args" => [ |
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'authorId' => [ |
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'type' => Type::id() |
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] |
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], |
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'resolve' => function($value, $args) use ($authors) { |
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return $authors[$args['authorId']]; |
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} |
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141
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] |
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] |
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]); |
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145
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$schema = new Schema([ |
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'mutation' => $mutationType, |
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'query' => $queryType |
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]); |
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149
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150
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151
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$rawInput = file_get_contents('php://input'); |
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$input = json_decode($rawInput, true); |
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$query = $input['query']; |
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$variableValues = isset($input['variables']) ? $input['variables'] : null; |
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$result = GraphQL::executeQuery($schema, $query, null, null, $variableValues); |
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$output = $result->toArray(); |
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} catch (\Exception $e) { |
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$output = [ |
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159
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'error' => [ |
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160
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'message' => $e->getMessage() |
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] |
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]; |
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163
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} |
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164
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header('Content-Type: application/json; charset=UTF-8'); |
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echo json_encode($output); |
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shmax /
graphql-php-validation-toolkit
