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ember-graphql-adapter

GraphQL adapter for Ember Data

授权协议 MIT License

开发语言 Java

所属分类大数据、数据查询

软件类型开源软件

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软件概览

Ember Data GraphQL Adapter

A Ember CLI adapter for using GraphQL with Ember Data.

Installation

ember install ember-graphql-adapter

Usage

Create your adapter first

// app/adapters/post.js
import GraphQLAdapter from 'ember-graphql-adapter';

export default GraphQLAdapter.extend({
  endpoint: 'http://localhost:3000/graph'
});

Now define your serializer

// app/serializers/post.js
import { Serializer } from 'ember-graphql-adapter';

export default Serializer.extend({});

And you're done!

Features

Queries and mutations are automatically generated for you
Field aliases are supported
Belongs to relationships are fully supported
Has many relationships are fully supported
Async relationships and request coalescing is supported with coalesceFindRequests: true

Rails Example

By using the fantastic graphql gem,you can expose your relational database as a GraphQL endpoint.

We start by creating a new type

# app/models/graph/post_type.rb
module Graph
  PostType = GraphQL::ObjectType.define do
    name "Post"
    description "A post"

    field :id, types.ID
    field :name, types.String
  end
end

Then we create the query type

# app/models/graph/query_type.rb
module Graph
  QueryType = GraphQL::ObjectType.define do
    name "Query"
    description "The query root of this schema"

    field :post, PostType do
      argument :id, !types.ID, "The ID of the post"
      resolve -> (_object, arguments, _context) do
        Post.find(arguments[:id])
      end
    end
  end
end

After that, it's time for the mutation type

# app/models/graph/mutation_type.rb
module Graph
  MutationType = GraphQL::ObjectType.define do
    name "Mutation"
    description "Mutations"

    field :postCreate, PostType do
      argument :name, !types.String, "The post name"
      resolve -> (_object, arguments, _context) do
        Post.create(name: arguments[:name])
      end
    end
  end
end

Now, we can build the whole schema

# app/models/graph/schema.rb
module Graph
  Schema = GraphQL::Schema.define do
    query Graph::QueryType
    mutation Graph::MutationType
  end
end

In the controller we just delegate to the GraphQL schema

# app/controllers/graph_controller.rb
class GraphController < ApplicationController
  def execute
    render json: ::Graph::Schema.execute(
      params.fetch("query"),
      context: {} # you can pass the current_user here
    )
  end
end

Finally, we just expose the GraphQL endpoint in the route

# config/routes.rb
get 'graph', to: 'graph#execute'

And that's it!

Developing

Installation

git clone https://github.com/alphasights/ember-graphql-adapter.git
yarn install

Running

yarn start

Running Tests

yarn run ember test -- --server

Building

yarn build

使用案例

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ember-graphql-adapter

Ember Data GraphQL Adapter

Installation

Usage

Features

Rails Example

Developing

Installation

Running

Running Tests

Building

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