如何从 axios 响应对象中的所有项目中提取特定值到 aa vuex 状态

Question

这让我发疯！

我有一个 axios 调用在控制台中返回一个 json 数组对象 - 检查！

>(100) [{…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}]
>0:
id: 54892250
iid: 1001
ref: "master"
sha: "63e3fc014e207dd4e708749cee3e89a1aa416b7d"
created_at: "2020-03-05T18:57:02.793Z"
updated_at: "2020-03-05T19:06:27.651Z"
>user: {id: someuserid, name: "someuser", username: "someusername", state: "active", avatar_url: "https://assets.gitlab-static.net/uploads/-/system/user/avatar/4534925/avatar.png", …}
>environment: {id: 123456, name: "somename", slug: "somename-iw5iqp", external_url: "https://someaddress.com"}
>deployable: {id: someid, status: "success", stage: "deploy", name: "deploy-staging", ref: "master", …}
status: "success"
__proto__: Object
>1: {id: 54804365, iid: 1000, ref: "filter-out-expired-items", sha: "6225d8018c86fa906063aeea5c10c710ddced14c", created_at: "2020-03-05T12:25:18.949Z", …}
>2: {id: 54804175, iid: 999, ref: "master", sha: "aa5e50c50ba95e9b16cbc57fb968bf9075c625b2", created_at: "2020-03-05T12:24:02.284Z", …}
>3: {id: 54801934, iid: 998, ref: "filter-out-expired-items", sha: "4fc2

现在我需要用这个结果做两件事：

1. 当完全扩展时，这种反应是很大的——而且有成千上万。 而不是在 vuex 状态中存储 1000 个巨大的 json 响应 - 我想首先只提取我们关心的值，如下所示：
   • ID
   • 参考
   • 环境名称
   • 地位
   • 可部署标签

类似于：

{ "id": id, "ref": ref, "environment": environment.name, "status": status, "tag": deployable.tag, }

我该怎么做呢？

2. 此响应在许多页面上分页 以上只是一个页面结果的部分示例。

我有一个工作循环，我正在获取所有这些的 console.log。 但是我需要做的是在提交状态之前连接所有页面（现在已剥离到上述字段）。 如果尝试过对象复制，推送到数组和各种有前途的实用程序 - 但我无法让它们中的任何一个工作:)

所以总结一下：

1. 获取页面结果
2. 将数组中的项压缩为简化版本
3. 将它们全部收集到我可以插入状态的对象中

循环的相关部分

  // Use headers to get the number of pages
  const pages = await axios.head(url, options)
    .then((response) => response.headers['x-total-pages']);
  console.log('pages=', pages); // DEBUG
  // Loop through and push them to an array
  for (let i = 0; i <= pages; i += 1) {
    console.log('i=', i);
    options = {
      headers: {
        'Private-Token': token,
      },
      params: {
        order_by: 'created_at',
        sort: 'desc',
        per_page: 100,
        page: i,
      },
    };
    axios.get(url, options)
      .then((result) => { console.log(result.data); })
  }

Answer 1

为总结果创建一个数组：

const results = [];

在您记录的地方，解析每个单独的结果：

result.data.forEach(item => {
  results.push({
     id: item.id,
     ref: item.ref,
     environment: item.environment.name,
     status: item.status,
     tag: item.deployable.tag
  });
});

请注意，使用普通for循环而不是forEach可能是一种性能优化。

Answer 2

我认为您可以使用 Promise 来保持请求的顺序，从而对跨页数据进行排序。 关键是将每个 axios 调用放入一个数组中，然后使用该数组调用Promise.all([])以按照您发出请求的原始顺序一次获得所有响应。

// Use headers to get the number of pages
const pages = await axios.head(url, options)
.then((response) => response.headers['x-total-pages']);
console.log('pages=', pages); // DEBUG

let promises = [];

// Loop through and push them to an array
for (let i = 0; i <= pages; i += 1) {
  console.log('i=', i);
  options = {
    headers: {
      'Private-Token': token,
    },
    params: {
      order_by: 'created_at',
      sort: 'desc',
      per_page: 100,
      page: i,
    },
  };

  let promise = axios.get(url, options);
  // this below keep responses order
  promises.push(promise);
}

// This wait for all Axios calls to be resolved as promise
Promise.all(promises)
  .then((result) => {
    // now if you have 10 pages, you'll have result[0] to result[9], each of them is an axios response
    console.log(result[0].data);
    console.log(result[1].data); // if pages > 0

    let items = []; // you can declare it outside too for Scope access
    for (let i = 0; i <= pages; i += 1) {
      // so many records, then take the minimum info
      if (result[i].data.length >= 1000) {
        result[i].data.forEach(item => {
          items.push({
            id: item.id,
            ref: item.ref,
            environment: item.environment.name,
            status: item.status,
            tag: item.deployable.tag
          });
        }
      } else {
        // Not so many records then take all info
        items = items.concat(result[i]);
      }
    }

    // TODO: do whatever you want with the items array now

  });

Answer 3

我会在这里使用Array.prototype.map将原始对象映射到只有属性子集的简化对象：

const newResult = result.data.map(d => ({
                                   id: d.id,
                                   ref: d.ref,
                                   environmentName: d.environment.name,
                                   status: d.deployable.status,
                                   deployableTag: d.deployable.tag
                                 }))

 const data = [ { "created_at": "2016-08-11T07:36:40.222Z", "updated_at": "2016-08-11T07:38:12.414Z", "deployable": { "commit": { "author_email": "admin@example.com", "author_name": "Administrator", "created_at": "2016-08-11T09:36:01.000+02:00", "id": "99d03678b90d914dbb1b109132516d71a4a03ea8", "message": "Merge branch 'new-title' into 'master'\\r\\n\\r\\nUpdate README\\r\\n\\r\\n\\r\\n\\r\\nSee merge request !1", "short_id": "99d03678", "title": "Merge branch 'new-title' into 'master'\\r" }, "coverage": null, "created_at": "2016-08-11T07:36:27.357Z", "finished_at": "2016-08-11T07:36:39.851Z", "id": 657, "name": "deploy", "ref": "master", "runner": null, "stage": "deploy", "started_at": null, "status": "success", "tag": false, "user": { "id": 1, "name": "Administrator", "username": "root", "state": "active", "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon", "web_url": "http://gitlab.dev/root", "created_at": "2015-12-21T13:14:24.077Z", "bio": null, "location": null, "public_email": "", "skype": "", "linkedin": "", "twitter": "", "website_url": "", "organization": "" }, "pipeline": { "created_at": "2016-08-11T02:12:10.222Z", "id": 36, "ref": "master", "sha": "99d03678b90d914dbb1b109132516d71a4a03ea8", "status": "success", "updated_at": "2016-08-11T02:12:10.222Z", "web_url": "http://gitlab.dev/root/project/pipelines/12" } }, "environment": { "external_url": "https://about.gitlab.com", "id": 9, "name": "production" }, "id": 41, "iid": 1, "ref": "master", "sha": "99d03678b90d914dbb1b109132516d71a4a03ea8", "user": { "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon", "id": 1, "name": "Administrator", "state": "active", "username": "root", "web_url": "http://localhost:3000/root" } }, { "created_at": "2016-08-11T11:32:35.444Z", "updated_at": "2016-08-11T11:34:01.123Z", "deployable": { "commit": { "author_email": "admin@example.com", "author_name": "Administrator", "created_at": "2016-08-11T13:28:26.000+02:00", "id": "a91957a858320c0e17f3a0eca7cfacbff50ea29a", "message": "Merge branch 'rename-readme' into 'master'\\r\\n\\r\\nRename README\\r\\n\\r\\n\\r\\n\\r\\nSee merge request !2", "short_id": "a91957a8", "title": "Merge branch 'rename-readme' into 'master'\\r" }, "coverage": null, "created_at": "2016-08-11T11:32:24.456Z", "finished_at": "2016-08-11T11:32:35.145Z", "id": 664, "name": "deploy", "ref": "master", "runner": null, "stage": "deploy", "started_at": null, "status": "success", "tag": false, "user": { "id": 1, "name": "Administrator", "username": "root", "state": "active", "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon", "web_url": "http://gitlab.dev/root", "created_at": "2015-12-21T13:14:24.077Z", "bio": null, "location": null, "public_email": "", "skype": "", "linkedin": "", "twitter": "", "website_url": "", "organization": "" }, "pipeline": { "created_at": "2016-08-11T07:43:52.143Z", "id": 37, "ref": "master", "sha": "a91957a858320c0e17f3a0eca7cfacbff50ea29a", "status": "success", "updated_at": "2016-08-11T07:43:52.143Z", "web_url": "http://gitlab.dev/root/project/pipelines/13" } }, "environment": { "external_url": "https://about.gitlab.com", "id": 9, "name": "production" }, "id": 42, "iid": 2, "ref": "master", "sha": "a91957a858320c0e17f3a0eca7cfacbff50ea29a", "user": { "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon", "id": 1, "name": "Administrator", "state": "active", "username": "root", "web_url": "http://localhost:3000/root" } } ] const result = data.map(d => ({ id: d.id, ref: d.ref, environmentName: d.environment.name, status: d.deployable.status, deployableTag: d.deployable.tag })) console.log(result)