@react-nano/tsrux/dist/actionCreator.js

tsrux stands for typesafe redux. It reduces boilerplate redux code.

export function actionCreator(type, getPayload, getMeta) {
    const creator = (...args) => {
        const action = { type };
        if (getPayload)
            action.payload = getPayload(...args);
        if (getMeta)
            action.meta = getMeta(...args);
        return action;
    };
    return Object.assign(creator, { type });
}