ra-core
Version:
Core components of react-admin, a frontend Framework for building admin applications on top of REST services, using ES6, React
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text/typescript
import { DataProvider } from '../types';
import { defaultDataProvider } from './defaultDataProvider';
export type DataProviderMatcher = (resource: string) => DataProvider;
/**
* Combine multiple data providers into one.
*
* @param dataProviderMatcher A function that returns a data provider for a given resource.
*
* @example
* const dataProvider = combineDataProviders(resource => {
* switch(resource) {
* case 'posts':
* case 'comments':
* return dataProvider1;
* case 'users':
* return dataProvider2;
* default:
* throw new Error('Unknown resource');
* }
* });
*/
export const combineDataProviders = (
dataProviderMatcher: DataProviderMatcher
): DataProvider =>
new Proxy(defaultDataProvider, {
get: (target, name) => {
if (name === 'then') {
return null;
}
return (resource, ...params) => {
if (typeof name === 'symbol') {
return;
}
return dataProviderMatcher(resource)[name](resource, ...params);
};
},
});