使用React/redux进行两次连续的axios请求的清理

问题描述

我需要发出axios post 请求以更新列表，然后发出axios get 请求以获取更新的列表.

I need to make an axios post request to update a list and then an axios get request to fetch the updated list.

我设法使用以下代码进行这些操作: axios(postOptions)然后是 axios(getOptions):

I managed to do these operations with the following code axios(postOptions) then axios(getOptions):

export function addItem() {
  ...
  return dispatch => {
    axios(postOptions)
      .then(response => {
        dispatch({
          type: ITEM_ADDED,
          payload: response.data
        });
        // getItems(); // <= unfortunately, this doesn't work, so I repeat some code
        axios(getOptions)
          .then(response => {
            dispatch({
              type: ITEMS_FETCHED,
              payload: response.data
            });
          })
          .catch(error => {
          return dispatch(handleError(error))
          });
      })
      .catch(error => {
        return dispatch(handleError(error))
      });
}

该代码有效，但是我重复我自己，因为我已经有了此 getItems()函数:

The code works but I repeat myself as I already have this getItems() function:

export function getItems() {
  ...
  return dispatch => {
    console.log('I am here') // <= when getItems() is inside addItem() function, 'I am here' is never displayed.
    axios(options)
      .then(response => {
        dispatch({
          type: ITEMS_FETCHED,
          payload: response.data
        });
      })
      .catch(error => {
        return dispatch(handleError(error))
      });
  }
}

重用此函数可能会更好，但是在 addItem()函数内部调用 getItems()函数时，它永远不会在内部dispatch().

It could have been better to reuse this function but when the getItems() function is called inside the addItem() function, it never goes inside the dispatch().

请问您能帮我找出问题出在哪里吗?

Can you help me to figure out what is going wrong please ?

非常感谢.

推荐答案

getItems是一个redux操作，您需要在dispatch中调用它

getItems is a redux action, you need to call it in dispatch

dispatch(getItems())

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