Redux函数抛出“回调不是函数”

如何解决Redux函数抛出“回调不是函数”

我正在尝试使redux函数起作用，但是，它引发了这个错误：

[TypeError: callback is not a function. (In 'callback(true,result)','callback' is undefined)]

函数是这样的：

export function searchEvent(categories,privateEvent,eventName,eventCity,eventHourStart,eventHourFinish,eventDayStart,eventDayFinish,callback) {
  return async () => {
    try {
      const ref = firestore().collection('events');

      if (categories.length > 0) {
        const promises = [];
        const allData = [];

        categories.forEach(e => {
          let query = ref.where(e.field,'==',e.value);

          if (privateEvent) {
            query = ref
              .where(e.field,e.value)
              .where('isPrivateEvent',true);
          }

          const promise = query.get().then(response => {
            const data = response.docs.map(d => d.data());
            let result = data;

            ...

            allData.push(...result);
          }).catch(error => {
            console.log(error);
          });
          promises.push(promise);
        });

        console.log(allData);
        Promise.all(promises).then(() => {
          callback(true,allData);
        });
      } else {
        let query = ref;

        if (privateEvent) {
          query = ref.where('isPrivateEvent',true);
        }

        query.get().then(response => {
          const data = response.docs.map(d => d.data());
          let result = data;

          ...

          console.log(result);
          callback(true,result);
        }).catch(error => {
          console.log(error);
        });
      }
    } catch (e) {
      console.log(e);
    }
  };
}

但是，我很确定我正在向上述函数传递回调，就像这样：

dispatchSearchEvent(categories,name,city,hourstart,hourfinish,daystart,dayfinish,(s,r) => {
   ...
});

那么，为什么当我明显地将回调传递给它以使其起作用时，为什么告诉我“回调”不是一个函数？ 在涉及react-redux方面，我仍然是一个新手，因此将不胜感激。