Files F122518159

useMutation.js
No OneTemporary
Actions

Subscribers

None

File Metadata

Created: Fri, Jul 18, 06:54

useMutation.js
View Options

	import _extends from "@babel/runtime/helpers/esm/extends";
	import React from 'react';
	import { notifyManager } from '../core/notifyManager';
	import { noop, parseMutationArgs } from '../core/utils';
	import { MutationObserver } from '../core/mutationObserver';
	import { useQueryClient } from './QueryClientProvider';
	import { shouldThrowError } from './utils'; // HOOK

	export function useMutation(arg1, arg2, arg3) {
	var mountedRef = React.useRef(false);

	var _React$useState = React.useState(0),
	forceUpdate = _React$useState[1];

	var options = parseMutationArgs(arg1, arg2, arg3);
	var queryClient = useQueryClient();
	var obsRef = React.useRef();

	if (!obsRef.current) {
	obsRef.current = new MutationObserver(queryClient, options);
	} else {
	obsRef.current.setOptions(options);
	}

	var currentResult = obsRef.current.getCurrentResult();
	React.useEffect(function () {
	mountedRef.current = true;
	var unsubscribe = obsRef.current.subscribe(notifyManager.batchCalls(function () {
	if (mountedRef.current) {
	forceUpdate(function (x) {
	return x + 1;
	});
	}
	}));
	return function () {
	mountedRef.current = false;
	unsubscribe();
	};
	}, []);
	var mutate = React.useCallback(function (variables, mutateOptions) {
	obsRef.current.mutate(variables, mutateOptions).catch(noop);
	}, []);

	if (currentResult.error && shouldThrowError(undefined, obsRef.current.options.useErrorBoundary, [currentResult.error])) {
	throw currentResult.error;
	}

	return _extends({}, currentResult, {
	mutate: mutate,
	mutateAsync: currentResult.mutate
	});
	}

Event Timeline