graphql-engine/community/tools/ra-data-hasura/README.md

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# ra-data-hasura
> [react-admin](https://github.com/marmelab/react-admin) data provider for Hasura GraphQL Engine
## Installation
```
$ npm install --save ra-data-hasura
```
## Usage
The `ra-data-hasura` provider accepts two arguments:
- `serverEndpoint` - The URL at which Hasura GraphQL Engine is running. (for example: http://localhost:8080). This is required.
- `headers` - An optional argument. Pass your auth headers here.
```
hasuraDataProvider(serverEndpoint, headers)
```
In the following example, we import `hasuraDataProvider` from `ra-data-hasura` and give it the hasura server endpoint (assumed to be running at http://localhost:8080) and an optional headers object.
```js
import React from 'react';
import PostIcon from '@material-ui/icons/Book';
import UserIcon from '@material-ui/icons/Group';
import { Admin, Resource, ListGuesser } from 'react-admin';
import hasuraDataProvider from 'ra-data-hasura';
import { PostList, PostEdit, PostCreate, PostShow } from './posts';
import { UserList } from './users';
import Dashboard from './Dashboard';
import authProvider from './authProvider';
const headers = {'content-type': 'application/json', 'authorization': 'bearer <token>'};
const App = () => (
<Admin
dataProvider={hasuraDataProvider('http://localhost:8080', headers)}
authProvider={authProvider}
dashboard={Dashboard}
>
<Resource
name="posts"
icon={PostIcon}
list={PostList}
edit={PostEdit}
create={PostCreate}
show={PostShow}
/>
<Resource name="users" icon={UserIcon} list={UserList} />
<Resource name="comments" list={ListGuesser} />
</Admin>
);
export default App;
```
In case the server is configured with admin secret or auth, configure the appropriate headers and pass it to the provider.
### Multiple schemas
To query schemas other than `public`, you can pass schema to resource in the format
`<Resource name="schema.table" />`.
For example to fetch data from schema `test` and table `author`, use the following snippet:
```
<Resource name="test.author" list={list} />
```
## Known Issues
Filter as you type (search) functionality inside tables is not supported right now. It is a work in progress.
## Contributing
To modify, extend and test this package locally,
```
$ cd ra-data-hasura
$ npm run link
```
Now use this local package in your react app for testing
```
$ cd my-react-app
$ npm link ra-data-hasura
```
Build the library by running `npm run build` and it will generate the transpiled version of the library under `lib` folder.