mirror of
https://github.com/retailcrm/graphql-php.git
synced 2024-11-21 20:36:05 +03:00
316 lines
12 KiB
PHP
316 lines
12 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace GraphQL\Tests;
|
|
|
|
/**
|
|
* This is designed to be an end-to-end test, demonstrating
|
|
* the full GraphQL stack.
|
|
*
|
|
* We will create a GraphQL schema that describes the major
|
|
* characters in the original Star Wars trilogy.
|
|
*
|
|
* NOTE: This may contain spoilers for the original Star
|
|
* Wars trilogy.
|
|
*/
|
|
|
|
use Exception;
|
|
use GraphQL\Type\Definition\EnumType;
|
|
use GraphQL\Type\Definition\InterfaceType;
|
|
use GraphQL\Type\Definition\NonNull;
|
|
use GraphQL\Type\Definition\ObjectType;
|
|
use GraphQL\Type\Definition\ResolveInfo;
|
|
use GraphQL\Type\Definition\Type;
|
|
use GraphQL\Type\Schema;
|
|
use function array_intersect_key;
|
|
use function array_map;
|
|
|
|
/**
|
|
* Using our shorthand to describe type systems, the type system for our
|
|
* Star Wars example is:
|
|
*
|
|
* enum Episode { NEWHOPE, EMPIRE, JEDI }
|
|
*
|
|
* interface Character {
|
|
* id: String!
|
|
* name: String
|
|
* friends: [Character]
|
|
* appearsIn: [Episode]
|
|
* }
|
|
*
|
|
* type Human implements Character {
|
|
* id: String!
|
|
* name: String
|
|
* friends: [Character]
|
|
* appearsIn: [Episode]
|
|
* homePlanet: String
|
|
* }
|
|
*
|
|
* type Droid implements Character {
|
|
* id: String!
|
|
* name: String
|
|
* friends: [Character]
|
|
* appearsIn: [Episode]
|
|
* primaryFunction: String
|
|
* }
|
|
*
|
|
* type Query {
|
|
* hero(episode: Episode): Character
|
|
* human(id: String!): Human
|
|
* droid(id: String!): Droid
|
|
* }
|
|
*
|
|
* We begin by setting up our schema.
|
|
*/
|
|
class StarWarsSchema
|
|
{
|
|
public static function build() : Schema
|
|
{
|
|
/**
|
|
* The original trilogy consists of three movies.
|
|
*
|
|
* This implements the following type system shorthand:
|
|
* enum Episode { NEWHOPE, EMPIRE, JEDI }
|
|
*/
|
|
$episodeEnum = new EnumType([
|
|
'name' => 'Episode',
|
|
'description' => 'One of the films in the Star Wars Trilogy',
|
|
'values' => [
|
|
'NEWHOPE' => [
|
|
'value' => 4,
|
|
'description' => 'Released in 1977.',
|
|
],
|
|
'EMPIRE' => [
|
|
'value' => 5,
|
|
'description' => 'Released in 1980.',
|
|
],
|
|
'JEDI' => [
|
|
'value' => 6,
|
|
'description' => 'Released in 1983.',
|
|
],
|
|
],
|
|
]);
|
|
|
|
$humanType = null;
|
|
$droidType = null;
|
|
|
|
/**
|
|
* Characters in the Star Wars trilogy are either humans or droids.
|
|
*
|
|
* This implements the following type system shorthand:
|
|
* interface Character {
|
|
* id: String!
|
|
* name: String
|
|
* friends: [Character]
|
|
* appearsIn: [Episode]
|
|
* }
|
|
*/
|
|
$characterInterface = new InterfaceType([
|
|
'name' => 'Character',
|
|
'description' => 'A character in the Star Wars Trilogy',
|
|
'fields' => static function () use (&$characterInterface, $episodeEnum) {
|
|
return [
|
|
'id' => [
|
|
'type' => Type::nonNull(Type::string()),
|
|
'description' => 'The id of the character.',
|
|
],
|
|
'name' => [
|
|
'type' => Type::string(),
|
|
'description' => 'The name of the character.',
|
|
],
|
|
'friends' => [
|
|
'type' => Type::listOf($characterInterface),
|
|
'description' => 'The friends of the character, or an empty list if they have none.',
|
|
],
|
|
'appearsIn' => [
|
|
'type' => Type::listOf($episodeEnum),
|
|
'description' => 'Which movies they appear in.',
|
|
],
|
|
'secretBackstory' => [
|
|
'type' => Type::string(),
|
|
'description' => 'All secrets about their past.',
|
|
],
|
|
];
|
|
},
|
|
'resolveType' => static function ($obj) use (&$humanType, &$droidType) {
|
|
return StarWarsData::getHuman($obj['id']) === null ? $droidType : $humanType;
|
|
},
|
|
]);
|
|
|
|
/**
|
|
* We define our human type, which implements the character interface.
|
|
*
|
|
* This implements the following type system shorthand:
|
|
* type Human implements Character {
|
|
* id: String!
|
|
* name: String
|
|
* friends: [Character]
|
|
* appearsIn: [Episode]
|
|
* secretBackstory: String
|
|
* }
|
|
*/
|
|
$humanType = new ObjectType([
|
|
'name' => 'Human',
|
|
'description' => 'A humanoid creature in the Star Wars universe.',
|
|
'fields' => [
|
|
'id' => [
|
|
'type' => new NonNull(Type::string()),
|
|
'description' => 'The id of the human.',
|
|
],
|
|
'name' => [
|
|
'type' => Type::string(),
|
|
'description' => 'The name of the human.',
|
|
],
|
|
'friends' => [
|
|
'type' => Type::listOf($characterInterface),
|
|
'description' => 'The friends of the human, or an empty list if they have none.',
|
|
'resolve' => static function ($human, $args, $context, ResolveInfo $info) {
|
|
$fieldSelection = $info->getFieldSelection();
|
|
$fieldSelection['id'] = true;
|
|
|
|
return array_map(
|
|
static function ($friend) use ($fieldSelection) {
|
|
return array_intersect_key($friend, $fieldSelection);
|
|
},
|
|
StarWarsData::getFriends($human)
|
|
);
|
|
},
|
|
],
|
|
'appearsIn' => [
|
|
'type' => Type::listOf($episodeEnum),
|
|
'description' => 'Which movies they appear in.',
|
|
],
|
|
'homePlanet' => [
|
|
'type' => Type::string(),
|
|
'description' => 'The home planet of the human, or null if unknown.',
|
|
],
|
|
'secretBackstory' => [
|
|
'type' => Type::string(),
|
|
'description' => 'Where are they from and how they came to be who they are.',
|
|
'resolve' => static function () {
|
|
// This is to demonstrate error reporting
|
|
throw new Exception('secretBackstory is secret.');
|
|
},
|
|
],
|
|
],
|
|
'interfaces' => [$characterInterface],
|
|
]);
|
|
|
|
/**
|
|
* The other type of character in Star Wars is a droid.
|
|
*
|
|
* This implements the following type system shorthand:
|
|
* type Droid implements Character {
|
|
* id: String!
|
|
* name: String
|
|
* friends: [Character]
|
|
* appearsIn: [Episode]
|
|
* secretBackstory: String
|
|
* primaryFunction: String
|
|
* }
|
|
*/
|
|
$droidType = new ObjectType([
|
|
'name' => 'Droid',
|
|
'description' => 'A mechanical creature in the Star Wars universe.',
|
|
'fields' => [
|
|
'id' => [
|
|
'type' => Type::nonNull(Type::string()),
|
|
'description' => 'The id of the droid.',
|
|
],
|
|
'name' => [
|
|
'type' => Type::string(),
|
|
'description' => 'The name of the droid.',
|
|
],
|
|
'friends' => [
|
|
'type' => Type::listOf($characterInterface),
|
|
'description' => 'The friends of the droid, or an empty list if they have none.',
|
|
'resolve' => static function ($droid) {
|
|
return StarWarsData::getFriends($droid);
|
|
},
|
|
],
|
|
'appearsIn' => [
|
|
'type' => Type::listOf($episodeEnum),
|
|
'description' => 'Which movies they appear in.',
|
|
],
|
|
'secretBackstory' => [
|
|
'type' => Type::string(),
|
|
'description' => 'Construction date and the name of the designer.',
|
|
'resolve' => static function () {
|
|
// This is to demonstrate error reporting
|
|
throw new Exception('secretBackstory is secret.');
|
|
},
|
|
],
|
|
'primaryFunction' => [
|
|
'type' => Type::string(),
|
|
'description' => 'The primary function of the droid.',
|
|
],
|
|
],
|
|
'interfaces' => [$characterInterface],
|
|
]);
|
|
|
|
/**
|
|
* This is the type that will be the root of our query, and the
|
|
* entry point into our schema. It gives us the ability to fetch
|
|
* objects by their IDs, as well as to fetch the undisputed hero
|
|
* of the Star Wars trilogy, R2-D2, directly.
|
|
*
|
|
* This implements the following type system shorthand:
|
|
* type Query {
|
|
* hero(episode: Episode): Character
|
|
* human(id: String!): Human
|
|
* droid(id: String!): Droid
|
|
* }
|
|
*/
|
|
$queryType = new ObjectType([
|
|
'name' => 'Query',
|
|
'fields' => [
|
|
'hero' => [
|
|
'type' => $characterInterface,
|
|
'args' => [
|
|
'episode' => [
|
|
'description' => 'If omitted, returns the hero of the whole saga. If provided, returns the hero of that particular episode.',
|
|
'type' => $episodeEnum,
|
|
],
|
|
],
|
|
'resolve' => static function ($rootValue, $args) {
|
|
return StarWarsData::getHero($args['episode'] ?? null);
|
|
},
|
|
],
|
|
'human' => [
|
|
'type' => $humanType,
|
|
'args' => [
|
|
'id' => [
|
|
'name' => 'id',
|
|
'description' => 'id of the human',
|
|
'type' => Type::nonNull(Type::string()),
|
|
],
|
|
],
|
|
'resolve' => static function ($rootValue, $args) {
|
|
$humans = StarWarsData::humans();
|
|
|
|
return $humans[$args['id']] ?? null;
|
|
},
|
|
],
|
|
'droid' => [
|
|
'type' => $droidType,
|
|
'args' => [
|
|
'id' => [
|
|
'name' => 'id',
|
|
'description' => 'id of the droid',
|
|
'type' => Type::nonNull(Type::string()),
|
|
],
|
|
],
|
|
'resolve' => static function ($rootValue, $args) {
|
|
$droids = StarWarsData::droids();
|
|
|
|
return $droids[$args['id']] ?? null;
|
|
},
|
|
],
|
|
],
|
|
]);
|
|
|
|
return new Schema(['query' => $queryType]);
|
|
}
|
|
}
|