@bilgorajskim/ra-data-graphcool
v2.1.0-2
Published
A Graphcool data provider for react-admin
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ra-data-graphcool
A GraphQL data provider for react-admin built with Apollo and tailored to target the GraphCool service.
A version of the react-admin
demo using this data provider is available at https://react-admin-graphql.now.sh/.
Installation
Install with:
npm install --save graphql ra-data-graphcool
or
yarn add graphql ra-data-graphcool
Usage
This example assumes a Post
type is defined in the graphcool schema.
// in App.js
import React, { Component } from 'react';
import buildGraphcoolProvider from 'ra-data-graphcool';
import { Admin, Resource, Delete } from 'react-admin';
import { PostCreate, PostEdit, PostList } from './posts';
const client = new ApolloClient();
class App extends Component {
constructor() {
super();
this.state = { dataProvider: null };
}
componentDidMount() {
buildGraphcoolProvider({ clientOptions: { uri: 'https://api.graph.cool/simple/v1/graphcool_id' }})
.then(dataProvider => this.setState({ dataProvider }));
}
render() {
const { dataProvider } = this.state;
if (!dataProvider) {
return <div>Loading</div>;
}
return (
<Admin dataProvider={dataProvider}>
<Resource name="Post" list={PostList} edit={PostEdit} create={PostCreate} remove={Delete} />
</Admin>
);
}
}
export default App;
And that's it, buildGraphcoolProvider
will create a default ApolloClient for you and run an introspection query on your graphcool endpoint, listing all potential resources.
This works with any GraphCool endpoint, or any GraphQL endpoint modeled after the GraphCool grammar:
Options
Customize the Apollo client
You can either supply the client options by calling buildGraphcoolProvider
like this:
buildGraphcoolProvider({ clientOptions: { uri: 'https://api.graph.cool/simple/v1/graphcool_id', ...otherApolloOptions } });
Or supply your client directly with:
buildGraphcoolProvider({ client: myClient });
Customize the introspection
These are the default options for introspection:
const introspectionOptions = {
include: [], // Either an array of types to include or a function which will be called for every type discovered through introspection
exclude: [], // Either an array of types to exclude or a function which will be called for every type discovered through introspection
}
// Including types
const introspectionOptions = {
include: ['Post', 'Comment'],
};
// Excluding types
const introspectionOptions = {
exclude: ['CommandItem'],
};
// Including types with a function
const introspectionOptions = {
include: type => ['Post', 'Comment'].includes(type.name),
};
// Including types with a function
const introspectionOptions = {
exclude: type => !['Post', 'Comment'].includes(type.name),
};
Note: exclude
and include
are mutualy exclusives and include
will take precendance.
Note: When using functions, the type
argument will be a type returned by the introspection query. Refer to the introspection documentation for more information.
Pass the introspection options to the buildApolloProvider
function:
buildApolloProvider({ introspection: introspectionOptions });
DELETE_MANY
and UPDATE_MANY
Optimizations
Graphcool does not allow multiple deletions or updates in a single query. This provider simply makes multiple requests to handle those. This is obviously not ideal but can be alleviated by supplying your own ApolloClient
which could use the apollo-link-batch-http link. Indeed, Graphcool does support query batching.
Contributing
Run the tests with this command:
make test