Added reference section to docs

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Vladimir Razuvaev 2017-08-17 02:16:32 +07:00
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# Intro
Stable library API. Not all class methods are covered here, only those which are considered stable.
**Backwards compatibility of these methods is preserved whenever possible.**
# GraphQL\GraphQL
Facade class ([related docs](/executing-queries/)) with following public interface:
```php
namespace GraphQL;
class GraphQL
{
/**
* @return GraphQL\Executor\ExecutionResult
*/
public static function executeQuery(
GraphQL\Type\Schema $schema,
$source,
$rootValue = null,
$contextValue = null,
$variableValues = null,
$operationName = null,
callable $fieldResolver = null,
array $validationRules = null,
GraphQL\Executor\Promise\PromiseAdapter $promiseAdapter = null
);
/**
* Returns directives defined in GraphQL spec
*
* @return Directive[]
*/
public static function getInternalDirectives();
/**
* Returns types defined in GraphQL spec
*
* @return Type[]
*/
public static function getInternalTypes();
}
```
# GraphQL\Type\Definition\Type
Returns internal GraphQL types ([related docs](type-system/scalar-types/#built-in-scalar-types)):
```php
namespace GraphQL\Type\Definition;
class Type
{
/**
* @return IDType
*/
public static function id();
/**
* @return StringType
*/
public static function string();
/**
* @return BooleanType
*/
public static function boolean();
/**
* @return IntType
*/
public static function int();
/**
* @return FloatType
*/
public static function float();
/**
* @param Type $wrappedType
* @return ListOfType
*/
public static function listOf($wrappedType);
/**
* @param Type $wrappedType
* @return NonNull
*/
public static function nonNull($wrappedType);
/**
* @return Type[]
*/
public static function getInternalTypes();
```
# GraphQL\Type\Definition\\*
- [GraphQL\Type\Definition\ObjectType](type-system/object-types/)
- [GraphQL\Type\Definition\ScalarType](type-system/scalar-types/)
- [GraphQL\Type\Definition\CustomScalarType](type-system/scalar-types/)
- [GraphQL\Type\Definition\EnumType](type-system/enum-types/)
- [GraphQL\Type\Definition\ListType](type-system/lists-and-nonnulls/)
- [GraphQL\Type\Definition\NonNull](type-system/lists-and-nonnulls/)
- [GraphQL\Type\Definition\InterfaceType](type-system/interfaces/)
- [GraphQL\Type\Definition\UnionType](type-system/unions/)
- [GraphQL\Type\Definition\InputObjectType](type-system/input-types/#input-object-type)
- [GraphQL\Type\Definition\Directive](type-system/directives/)
# GraphQL\Type\SchemaConfig
Instance accepted by [Schema](type-system/schema/#configuration-options) constructor.
```php
namespace GraphQL\Type;
use GraphQL\Type\Definition\ObjectType;
use GraphQL\Type\Definition\Type;
use GraphQL\Type\Definition\Directive;
class SchemaConfig
{
/**
* Converts array of options to instance of SchemaConfig
*
* @param array $options
* @return SchemaConfig
*/
public static function create(array $options = []);
/**
* @return $this
*/
public function setQuery(ObjectType $query);
/**
* @return $this
*/
public function setMutation(ObjectType $mutation);
/**
* @return $this
*/
public function setSubscription(ObjectType $subscription);
/**
* Pass additional schema types (or callable returning these types)
*
* @param Type[]|callable $types
* @return $this
*/
public function setTypes($types);
/**
* @param Directive[] $directives
* @return $this
*/
public function setDirectives(array $directives);
/**
* @return $this
*/
public function setTypeLoader(callable $typeLoader);
/**
* @return ObjectType
*/
public function getQuery();
/**
* @return ObjectType
*/
public function getMutation();
/**
* @return ObjectType
*/
public function getSubscription();
/**
* @return Type[]
*/
public function getTypes();
/**
* @return Directive[]
*/
public function getDirectives();
/**
* @return callable
*/
public function getTypeLoader();
}
```
# GraphQL\Type\Schema
See [related docs](type-system/schema).
```php
namespace GraphQL\Type;
class Schema
{
/**
* Schema constructor.
*
* @param array|SchemaConfig $config
*/
public function __construct($config);
/**
* @return SchemaConfig
*/
public function getConfig();
/**
* Returns schema query type
*
* @return ObjectType
*/
public function getQueryType();
/**
* Returns schema mutation type
*
* @return ObjectType|null
*/
public function getMutationType();
/**
* Returns schema subscription
*
* @return ObjectType|null
*/
public function getSubscriptionType();
/**
* Returns a list of directives supported by this schema
*
* @return Directive[]
*/
public function getDirectives();
/**
* Returns instance of directive by name
*
* @return Directive
*/
public function getDirective($name);
/**
* Returns true if object type is concrete type of given abstract type
* (implementation for interfaces and members of union type for unions)
*
* @return bool
*/
public function isPossibleType(AbstractType $abstractType, ObjectType $possibleType);
/**
* Returns type by it's name
*
* @return Type
*/
public function getType($name);
/**
* Returns array of all types in this schema. Keys of this array represent type names,
* values are instances of corresponding type definitions
*
* This operation requires full schema scan. Do not use in production environment.
*
* @return Type[]
*/
public function getTypeMap();
/**
* Returns all possible concrete types for given abstract type
* (implementations for interfaces and members of union type for unions)
*
* This operation requires full schema scan. Do not use in production environment.
*
* @return ObjectType[]
*/
public function getPossibleTypes(AbstractType $abstractType);
/**
* Validates schema.
*
* This operation requires full schema scan. Do not use in production environment.
*
* @throws InvariantViolation
*/
public function assertValid();
}
```
# GraphQL\Language\Parser
Parses query string to AST
```php
class Parser
{
/**
* Available options:
*
* noLocation: boolean,
* (By default, the parser creates AST nodes that know the location
* in the source that they correspond to. This configuration flag
* disables that behavior for performance or testing.)
*
* @return DocumentNode
*/
public static function parse($source, array $options = []);
/**
* Given a string containing a GraphQL value (ex. `[42]`), parse the AST for
* that value.
* Throws GraphQL\Error\SyntaxError if a syntax error is encountered.
*
* This is useful within tools that operate upon GraphQL Values directly and
* in isolation of complete GraphQL documents.
*
* Consider providing the results to the utility function: GraphQL\Utils\AST::valueFromAST().
*
* @return BooleanValueNode|EnumValueNode|FloatValueNode|IntValueNode|ListValueNode|ObjectValueNode|StringValueNode|VariableNode
*/
public static function parseValue($source, array $options = []);
/**
* Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for
* that type.
* Throws GraphQL\Error\SyntaxError if a syntax error is encountered.
*
* This is useful within tools that operate upon GraphQL Types directly and
* in isolation of complete GraphQL documents.
*
* Consider providing the results to the utility function: GraphQL\Utils\AST::typeFromAST().
*
* @return ListTypeNode|NameNode|NonNullTypeNode
*/
public static function parseType($source, array $options = []);
}
```
# GraphQL\Language\Printer
Prints AST to string.
```php
namespace GraphQL\Language;
class Printer
{
/**
* Prints AST to string. Capable of printing GraphQL queries and Type definition language.
*
* @param GraphQL\Language\AST\Node $ast
* @return string
*/
public static function doPrint($ast);
}
```
# GraphQL\Language\Visitor
```php
namespace GraphQL\Language;
class Visitor
{
/**
* visit() will walk through an AST using a depth first traversal, calling
* the visitor's enter function at each node in the traversal, and calling the
* leave function after visiting that node and all of it's child nodes.
*
* By returning different values from the enter and leave functions, the
* behavior of the visitor can be altered, including skipping over a sub-tree of
* the AST (by returning false), editing the AST by returning a value or null
* to remove the value, or to stop the whole traversal by returning BREAK.
*
* When using visit() to edit an AST, the original AST will not be modified, and
* a new version of the AST with the changes applied will be returned from the
* visit function.
*
* $editedAST = Visitor::visit($ast, [
* 'enter' => function ($node, $key, $parent, $path, $ancestors) {
* // return
* // null: no action
* // Visitor::skipNode(): skip visiting this node
* // Visitor::stop(): stop visiting altogether
* // Visitor::removeNode(): delete this node
* // any value: replace this node with the returned value
* },
* 'leave' => function ($node, $key, $parent, $path, $ancestors) {
* // return
* // null: no action
* // Visitor::stop(): stop visiting altogether
* // Visitor::removeNode(): delete this node
* // any value: replace this node with the returned value
* }
* ]);
*
* Alternatively to providing enter() and leave() functions, a visitor can
* instead provide functions named the same as the kinds of AST nodes, or
* enter/leave visitors at a named key, leading to four permutations of
* visitor API:
*
* 1) Named visitors triggered when entering a node a specific kind.
*
* Visitor::visit($ast, [
* 'Kind' => function ($node) {
* // enter the "Kind" node
* }
* ]);
*
* 2) Named visitors that trigger upon entering and leaving a node of
* a specific kind.
*
* Visitor::visit($ast, [
* 'Kind' => [
* 'enter' => function ($node) {
* // enter the "Kind" node
* }
* 'leave' => function ($node) {
* // leave the "Kind" node
* }
* ]
* ]);
*
* 3) Generic visitors that trigger upon entering and leaving any node.
*
* Visitor::visit($ast, [
* 'enter' => function ($node) {
* // enter any node
* },
* 'leave' => function ($node) {
* // leave any node
* }
* ]);
*
* 4) Parallel visitors for entering and leaving nodes of a specific kind.
*
* Visitor::visit($ast, [
* 'enter' => [
* 'Kind' => function($node) {
* // enter the "Kind" node
* }
* },
* 'leave' => [
* 'Kind' => function ($node) {
* // leave the "Kind" node
* }
* ]
* ]);
*
* @param Node $root
* @param array $visitor
* @param array $keyMap
* @return Node|mixed
* @throws \Exception
*/
public static function visit($root, $visitor, $keyMap = null);
/**
* Returns marker for visitor break
*
* @return VisitorOperation
*/
public static function stop();
/**
* Returns marker for skipping current node
*
* @return VisitorOperation
*/
public static function skipNode();
/**
* Returns marker for removing a node
*
* @return VisitorOperation
*/
public static function removeNode();
}
```
# GraphQL\Language\AST\\*
Simple structural classes representing AST Nodes.
[Check out source code](https://github.com/webonyx/graphql-php/tree/master/src/Language/AST).
# GraphQL\Executor\Executor
Implements [execution phase](/executing-queries/#executing) of whole query execution process.
```php
namespace GraphQL\Executor;
use GraphQL\Executor\Promise\Promise;
use GraphQL\Executor\Promise\PromiseAdapter;
class Executor
{
/**
* Executes DocumentNode against given schema.
*
* When $promiseAdapter is passed returns Promise instance produced by this adapter.
* By default simply returns ExecutionResult
*
* @return ExecutionResult|Promise
*/
public static function execute(
Schema $schema,
DocumentNode $ast,
$rootValue = null,
$contextValue = null,
$variableValues = null,
$operationName = null,
callable $fieldResolver = null,
PromiseAdapter $promiseAdapter = null
);
}
```
# GraphQL\Executor\ExecutionResult
Result of [query execution process](/executing-queries/#overview).
```php
namespace GraphQL\Executor;
class ExecutionResult implements \JsonSerializable
{
/**
* @var array
*/
public $data;
/**
* @var Error[]
*/
public $errors;
/**
* @var array[]
*/
public $extensions;
/**
* Define custom error formatting (must conform to http://facebook.github.io/graphql/#sec-Errors)
*
* Expected signature is: function (GraphQL\Error\Error $error): array
*
* Default formatter is "GraphQL\Error\FormattedError::createFromException"
*
* Expected returned value must be an array:
* array(
* 'message' => 'errorMessage',
* // ... other keys
* );
*
* @param callable $errorFormatter
* @return $this
*/
public function setErrorFormatter(callable $errorFormatter);
/**
* Define custom logic for error handling (filtering, logging, etc).
*
* Expected handler signature is: function (array $errors, callable $formatter): array
*
* Default handler is:
* function (array $errors, callable $formatter) {
* return array_map($formatter, $errors);
* }
*
* @param callable $handler
* @return $this
*/
public function setErrorsHandler(callable $handler);
/**
* Converts GraphQL result to array using provided errors handler and formatter.
*
* Default error formatter is GraphQL\Error\FormattedError::createFromException
* Default error handler will simply return all errors formatted. No errors are filtered.
*
* @param bool|int $debug
* @return array
*/
public function toArray($debug = false);
/**
* Part of \JsonSerializable interface
*
* @return array
*/
public function jsonSerialize()
{
return $this->toArray();
}
```
# GraphQL\Type\Definition\ResolveInfo
```php
namespace GraphQL\Type\Definition;
use GraphQL\Language\AST\FieldNode;
use GraphQL\Language\AST\FragmentDefinitionNode;
use GraphQL\Language\AST\FragmentSpreadNode;
use GraphQL\Language\AST\InlineFragmentNode;
use GraphQL\Language\AST\OperationDefinitionNode;
use GraphQL\Language\AST\SelectionSetNode;
use GraphQL\Type\Schema;
class ResolveInfo
{
/**
* @var string
*/
public $fieldName;
/**
* @var FieldNode[]
*/
public $fieldNodes;
/**
* @var ScalarType|ObjectType|InterfaceType|UnionType|EnumType|ListOfType|NonNull
*/
public $returnType;
/**
* @var ObjectType|InterfaceType|UnionType
*/
public $parentType;
/**
* @var array
*/
public $path;
/**
* @var Schema
*/
public $schema;
/**
* @var FragmentDefinitionNode[]
*/
public $fragments;
/**
* @var mixed
*/
public $rootValue;
/**
* @var OperationDefinitionNode
*/
public $operation;
/**
* @var array<variableName, mixed>
*/
public $variableValues;
/**
* Helper method that returns names of all fields selected in query for
* $this->fieldName up to $depth levels
*
* Example:
* query MyQuery{
* {
* root {
* id,
* nested {
* nested1
* nested2 {
* nested3
* }
* }
* }
* }
*
* Given this ResolveInfo instance is a part of "root" field resolution, and $depth === 1,
* method will return:
* [
* 'id' => true,
* 'nested' => [
* nested1 => true,
* nested2 => true
* ]
* ]
*
* @param int $depth How many levels to include in output
* @return array
*/
public function getFieldSelection($depth = 0);
}
```
# GraphQL\Validator\DocumentValidator
```php
namespace GraphQL\Validator;
use GraphQL\Error\Error;
class DocumentValidator
{
/**
* Returns all validation rules
*
* @return callable[]
*/
public static function allRules();
/**
* Returns validation rule
*
* @param string $name
* @return callable|null
*/
public static function getRule($name);
/**
* Implements the "Validation" section of the spec.
*
* Validation runs synchronously, returning an array of encountered errors, or
* an empty array if no errors were encountered and the document is valid.
*
* A list of specific validation rules may be provided. If not provided, the
* default list of rules defined by the GraphQL specification will be used.
*
* Each validation rules is a function which returns a visitor
* (see the GraphQL\Language\Visitor API). Visitor methods are expected to return
* GraphQL\Error\Error, or arrays of GraphQL\Error\Error when invalid.
*
* Optionally a custom TypeInfo instance may be provided. If not provided, one
* will be created from the provided schema.
*
* @return Error[]
*/
public static function validate(
Schema $schema,
DocumentNode $ast,
array $rules = null,
TypeInfo $typeInfo = null
);
}
```
# GraphQL\Error\Error
Class describing an Error found during the parse, validate, or
execute phases of performing a GraphQL operation.
In addition to a message and stack trace, it also includes information about the locations in a
GraphQL document and/or execution result that correspond to the Error.
```php
namespace GraphQL\Error;
class Error extends \Exception implements \JsonSerializable, ClientAware
{
const CATEGORY_GRAPHQL = 'graphql';
const CATEGORY_INTERNAL = 'internal';
/**
* Part of ClientAware interface
*
* @return boolean
*/
public function isClientSafe();
/**
* Part of ClientAware interface
*
* @return string
*/
public function getCategory();
/**
* @return SourceLocation[]
*/
public function getLocations();
/**
* Returns an array describing the JSON-path into the execution response which
* corresponds to this error. Only included for errors during execution.
*
* @return array|null
*/
public function getPath();
```
# GraphQL\Error\Warning
```php
final class Warning
{
const NAME_WARNING = 1;
const ASSIGN_WARNING = 2;
const CONFIG_WARNING = 4;
const FULL_SCHEMA_SCAN_WARNING = 8;
const CONFIG_DEPRECATION_WARNING = 16;
const NOT_A_TYPE = 32;
/**
* Sets warning handler which (when set) will intercept all system warnings.
* When not set, trigger_error() is used to notify about warnings.
*
* @param callable|null $warningHandler
*/
public static function setWarningHandler(callable $warningHandler = null);
/**
* Suppress warning by id (has no effect when custom warning handler is set)
*
* Usage example:
* Warning::suppress(Warning::NOT_A_TYPE)
*
* When passing true - suppresses all warnings.
*
* @param bool|int $suppress
*/
static function suppress($suppress = true);
/**
* Re-enable previously suppressed warning by id
*
* Usage example:
* Warning::suppress(Warning::NOT_A_TYPE)
*
* When passing true - re-enables all warnings.
*
* @param bool|int $enable
*/
public static function enable($enable = true);
}
```
# GraphQL\Error\ClientAware
```
namespace GraphQL\Error;
interface ClientAware
{
/**
* Returns true when exception message is safe to be displayed to client
*
* @return bool
*/
public function isClientSafe();
/**
* Returns string describing error category.
*
* Value "graphql" is reserved for errors produced by query parsing or validation, do not use it.
*
* @return string
*/
public function getCategory();
}
```
# GraphQL\Error\FormattedError
```php
namespace GraphQL\Error;
class FormattedError
{
const INCLUDE_DEBUG_MESSAGE = 1;
const INCLUDE_TRACE = 2;
public static function setInternalErrorMessage($msg);
/**
* Standard GraphQL error formatter. Converts any exception to GraphQL error
* conforming to GraphQL spec
*
* @param \Throwable $e
* @param bool|int $debug
* @param string $internalErrorMessage
*
* @return array
*/
public static function createFromException($e, $debug = false, $internalErrorMessage = null);
}
```

View File

@ -2,7 +2,7 @@ site_name: graphql-php
pages:
- About: index.md
- Getting Started: getting-started.md
- Type System:
- Type Definitions:
- Introduction: type-system/index.md
- Object Types: type-system/object-types.md
- Scalar Types: type-system/scalar-types.md
@ -13,9 +13,14 @@ pages:
- Input Types: type-system/input-types.md
- Directives: type-system/directives.md
- Schema: type-system/schema.md
# - Using Type Language: type-system/type-language.md
- Executing Queries: executing-queries.md
- Fetching Data: data-fetching.md
- Handling Errors: error-handling.md
# - Security: security.md
# - Performance tips: performance.md
# - Standard Server: server.md
# - Best Practices: best-practices.md
- Complementary Tools: complementary-tools.md
- Class Reference: reference.md
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