ra-core/dist/esm/dataProvider/useGetOne.js

Core components of react-admin, a frontend Framework for building admin applications on top of REST services, using ES6, React

import { useQuery } from 'react-query';
import { useDataProvider } from './useDataProvider';
/**
 * Call the dataProvider.getOne() method and return the resolved value
 * as well as the loading state.
 *
 * The return value updates according to the request state:
 *
 * - start: { isLoading: true, isFetching: true, refetch }
 * - success: { data: [data from response], isLoading: false, refetch }
 * - error: { error: [error from response], isLoading: false, refetch }
 *
 * This hook will return the cached result when called a second time
 * with the same parameters, until the response arrives.
 *
 * @param resource The resource name, e.g. 'posts'
 * @param {Params} params The getOne parameters { id, meta }, e.g. { id: 123 }
 * @param {Options} options Options object to pass to the react-query queryClient.
 *
 * @typedef Params
 * @prop id a resource identifier, e.g. 123
 *
 * @typedef Options
 * @prop enabled Flag to conditionally run the query. If it's false, the query will not run
 * @prop onSuccess Side effect function to be executed upon success, e.g. { onSuccess: { refresh: true } }
 * @prop onError Side effect function to be executed upon failure, e.g. { onError: error => notify(error.message) }
 *
 * @returns The current request state. Destructure as { data, error, isLoading, refetch }.
 *
 * @example
 *
 * import { useGetOne, useRecordContext } from 'react-admin';
 *
 * const UserProfile = () => {
 *     const record = useRecordContext();
 *     const { data, isLoading, error } = useGetOne('users', { id: record.id });
 *     if (isLoading) { return <Loading />; }
 *     if (error) { return <p>ERROR</p>; }
 *     return <div>User {data.username}</div>;
 * };
 */
export var useGetOne = function (resource, _a, options) {
    var id = _a.id, meta = _a.meta;
    var dataProvider = useDataProvider();
    return useQuery(
    // Sometimes the id comes as a string (e.g. when read from the URL in a Show view).
    // Sometimes the id comes as a number (e.g. when read from a Record in useGetList response).
    // As the react-query cache is type-sensitive, we always stringify the identifier to get a match
    [resource, 'getOne', { id: String(id), meta: meta }], function () {
        return dataProvider
            .getOne(resource, { id: id, meta: meta })
            .then(function (_a) {
            var data = _a.data;
            return data;
        });
    }, options);
};
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