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Informations about the package yii2-graphql

yii-graphql

Using Facebook GraphQL PHP server implementation. Extends graphql-php to apply to YII2.

Latest Stable Version Build Status Total Downloads


Chinese document


Features

Install

Using composer

Type

The type system is the core of GraphQL, which is embodied in GraphQLType. By deconstructing the GraphQL protocol and using the graph-php library to achieve fine-grained control of all elements, it is convenient to extend the class according to its own needs

The main elements of GraphQLType

The following elements can be declared in the $attributes property of the class, or as a method, unless stated otherwise. This also applies to all elements after this.

Element Type Description
name string Required Each type needs to be named, with unique names preferred to resolve potential conflicts. The property needs to be defined in the $attributes property.
description string A description of the type and its use. The property needs to be defined in the $attributes property.
fields array Required The included field content is represented by the fields () method.
resolveField callback function($value, $args, $context, GraphQL\Type\Definition\ResolveInfo $info) For the interpretation of a field. For example: the fields definition of the user property, the corresponding method is resolveUserField(), and $value is the passed type instance defined by type.

Query

GraphQLQuery and GraphQLMutation inherit GraphQLField. The element structure is consistent, and if you would like a reusable Field, you can inherit it. Each query of Graphql needs to correspond to a GraphQLQuery object

The main elements of GraphQLField

Element Type Description
type ObjectType For the corresponding query type. The single type is specified by GraphQL::type, and a list by Type::listOf(GraphQL::type).
args array The available query parameters, each of which is defined by Field.
resolve callback function($value, $args, $context, GraphQL\Type\Definition\ResolveInfo $info) $value is the root data, $args is the query parameters, $context is the yii\web\Application object, and $info resolves the object for the query. The root object is handled in this method.

Mutation

Definition is similar to GraphQLQuery, please refer to the above.

Simplified Field Definition

Simplifies the declarations of Field, removing the need to defined as an array with the type key.

Standard Definition

Simplified Definition

Yii Implementation

General configuration

JsonParser configuration required

Module support

Can easily be implemented with yii\graphql\GraphQLModuleTrait. The trait is responsible for initialization.

In your application configuration file:

Use the controller to receive requests by using yii\graphql\GraphQLAction

Component Support

also you can include the trait with your own components,then initialization yourself.

Input validation

Validation rules are supported. In addition to graphql based validation, you can also use Yii Model validation, which is currently used for the validation of input parameters. The rules method is added directly to the mutation definition.

Authorization verification

Since graphql queries can be combined, such as when a query merges two query, and the two query have different authorization constraints, custom authentication is required. I refer to this query as "graphql actions"; when all graphql actions conditions are configured, it passes the authorization check.

Authenticate

In the behavior method of controller, the authorization method is set as follows

If you want to support IntrospectionQuery authorization, the corresponding graphql action is __schema

Authorization

If the user has passed authentication, you may want to check the access for the resource. You can use GraphqlAction's checkAccess method in the controller. It will check all graphql actions.

Demo

Creating queries based on graphql protocols

Each query corresponds to a GraphQLQuery file.

Define type files based on query protocols

Query instance

Exception Handling

You can config the error formater for graph. The default handle uses yii\graphql\ErrorFormatter, which optimizes the processing of Model validation results.

Future


All versions of yii2-graphql with dependencies

PHP Build Version
Package Version
Requires php Version >=5.6.0
yiisoft/yii2 Version ~2.0.10
webonyx/graphql-php Version ^0.11
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