@devcycle/nextjs-sdk/src/client/internal/useRerenderOnVariableChange.js

The Next.js SDK for DevCycle!

import { useCallback, useEffect, useState } from 'react';
import { useDevCycleClient } from './useDevCycleClient';
export const useRerenderOnVariableChange = (key) => {
    const [_, forceRerender] = useState({});
    const forceRerenderCallback = useCallback(() => forceRerender({}), []);
    const client = useDevCycleClient();
    const variableKey = key !== null && key !== void 0 ? key : '*';
    useEffect(() => {
        client.subscribe(`variableUpdated:${variableKey}`, forceRerenderCallback);
        return () => {
            client.unsubscribe(`variableUpdated:${variableKey}`, forceRerenderCallback);
        };
    }, [variableKey, client, forceRerenderCallback]);
};
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