ra-data-graphql-brainsecode v0.0.13

ra-data-graphql-brainsecode

A GraphQL data provider for react-admin built for GraphQL API generated with Brainsecode

• Installation
• Usage
• Options
• Credits

Installation

Install with:

npm install --save graphql ra-data-graphql-brainsecode

or

yarn add graphql ra-data-graphql-brainsecode

Usage

The ra-data-graphql-brainsecode package exposes a single function, which is a constructor for a dataProvider based on a GraphQL endpoint. When executed, this function calls the GraphQL endpoint, running an introspection query. It uses the result of this query (the GraphQL schema) to automatically configure the dataProvider accordingly.

// in graphqlDataProvider.ts
import buildGraphQLProvider from 'ra-data-graphql-brainsecode';
import { ApolloClient } from 'apollo-client';
import { createHttpLink } from 'apollo-link-http';
import { setContext } from 'apollo-link-context';
import { InMemoryCache } from 'apollo-cache-inmemory';

const httpLink = createHttpLink({
  //@todo: get the url from a configuration file
  uri: 'http://localhost:3000/graphql',
});

const authLink = setContext((_, { headers }) => {
  //@todo: get the authentication token from local storage
  const token = 'YWRtaW46YWRtaW4=';
  return {
    headers: {
      ...headers,
      authorization: token ? `Basic ${token}` : '',
    },
  };
});

const apolloClient = new ApolloClient({
  cache: new InMemoryCache(),
  link: authLink.concat(httpLink),
});

export default buildGraphQLProvider({
  client: apolloClient,
});

//in app.tsx
import React, { useEffect, useState } from 'react';
import { Admin, DataProvider, Resource } from 'react-admin';

import buildGraphQLProvider from './graphqlDataProvider';
import basicHttpAuthProvider from './auth-provider/ra-auth-basic-http';

import './App.css';
import Dashboard from './pages/Dashboard';

import { UserList } from './User/UserList';
import { UserEdit } from './User/UserEdit';
import { UserCreate } from './User/UserCreate';

function App() {
  const [dataProvider, setDataProvider] = useState<DataProvider | null>(null);
  useEffect(() => {
    buildGraphQLProvider
      .then((provider) => {
        setDataProvider(() => provider);
      })
      .catch((error: any) => {
        console.log(error);
      });
  }, []);
  if (!dataProvider) {
    return <div>Loading</div>;
  }
  return (
    <div className="App">
      <Admin
        title="My Admin"
        dataProvider={dataProvider}
        authProvider={basicHttpAuthProvider}
        dashboard={Dashboard}
      >
        <Resource
          name="User"
          list={UserList}
          edit={UserEdit}
          create={UserCreate}
        />
      </Admin>
    </div>
  );
}

export default App;

Expected GraphQL Schema

The ra-data-graphql-brainsecode function works against GraphQL servers that was generated with Brainsecode, or respects its grammar.

Options

Customize the Apollo client

You can either supply the client options by calling buildGraphQLProvider like this:

buildGraphQLProvider({
  clientOptions: { uri: 'http://localhost:4000', ...otherApolloOptions },
});

Or supply your client directly with:

buildGraphQLProvider({ client: myClient });

Credits

This provider was built on top of the source code of ra-data-graphql-simple

https://github.com/marmelab/react-admin/tree/master/packages/ra-data-graphql-simple