javascript - 如何使用 Javascript 中的动态链接数组发出多个 Axios 请求？

Question

linksArray 是一个包含六个链接的数组。

我想用这个数组来执行(6)get请求。然后，我想把response和response映射通过后的setState拿到我想要的结果。

这里有什么帮助吗？

getGistsDescriptions = () => {
let promiseArray = linksArray.map((url) => { return axios.get(url)});

axios.all(promiseArray)
     .then(axios.spread((...res) => {
       console.log(...res);

      /*let temp = res.map((element) => {
        return element.data;
      });*/

       //this.setState({ gistsDescriptions: temp });
     }))
     .catch((err) => {
    console.log(err);
  });
 }

我也试过这个:

getGistsDescriptions = () => {
let promiseArray = linksArray.map((url) => { return axios.get(url)});

axios.all(promiseArray)
     .then((results) => {
       console.log(results);

      /*let temp = results.map((element) => {
        return element.data;
      });*/

       //this.setState({ gistsDescriptions: temp });
     })
     .catch((err) => {
    console.log(err);
  });
}

Answer 1

您应该做的第一件事是检查链接数组是否确实包含有效链接。

以下代码适用于我:

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//# sourceMappingURL=axios.min.map

let linksArr = ['https://jsonplaceholder.typicode.com/posts', 'https://jsonplaceholder.typicode.com/comments'];

axios.all(linksArr.map(l => axios.get(l)))
  .then(axios.spread(function (...res) {
    // all requests are now complete
    console.log(res);
  }));

或者，你也可以使用 fetch 和 promises

// sample links
let linksArr = [undefined, undefined];

let promiseArr = linksArr.map(l => fetch(l).then(res => res.json()));

Promise.all(promiseArr).then(res => {
  /* do something with res here... */
  console.log(res);
})