请问使用fetch api库请求的结果重新包装一下?-php教程-PHP中文网

请问使用fetch api库请求的结果重新包装一下?

php中文网

发布： 2016-10-11 14:23:44

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大家好, 我使用这个库https://github.com/dvajs/dva/...请求yii2的rest api时, 如何才能将服务器返回的头部x-pagination-page-count, x-pagination-total-count等信息包装进返回结果呢?

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当前api 返回信息的头部已包含下列信息

<code>x-pagination-current-page:1
x-pagination-page-count:35
x-pagination-per-page:12
x-pagination-total-count:411</code>

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我希望将返回的的data重新包装下,使data对象包含list(原来的返回结果), 服务器头信息的x-pagination-total-count,x-pagination-page-count.等信息

但是现在我只能获取到, 纯粹的rest返回结果是个数组. 我尝试在 request类中重新封装数据, 各种尝试都失败了. 各种搜可能是关键词不对也没有找到解决办法.

请问各位大神, 如何才能包装成我需要的对象呢? 谢谢!!!

请求代码如下:

<code> const {data} = yield call(query, parse(payload));
      if (data) {
        console.log(data); //!!!这里!!!  我希望将这里返回的data 重新包装下,使data对象list, 服务器头信息,x-pagination-total-count,x-pagination-page-count.等信息 
        // 但是现在 我只能获取到, 纯粹的rest返回结果 是个数组. 我尝试在 request类中重新封装数据, 各种尝试都失败了. 各种搜  可能是关键词不对  也没有找到解决办法. 
        yield put({
          type: 'querySuccess',
          payload: {
            list: data.list,
            total: Number(data.total),
            current: Number(data.current),
            pageSize: data.pageSize ? data.pageSize : 12,
          }
        });
      }</code>

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异步方法如下:

<code>export async function query(params) {
  return request(`/api/users?${qs.stringify(params)}`);
}</code>

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request类如下:

<code>import fetch from 'dva/fetch';

function checkStatus(response) {
  if (response.status >= 200 && response.status < 300) {
    //这里是可以读取到这些信息的. 但是我不会重新包装. 
    console.log(response.headers.get('x-pagination-page-count')); //35
    console.log(response.headers.get('x-pagination-total-count')); //411
    return response;
  }
  const error = new Error(response.statusText);
  error.response = response;
  throw error;
}

function parseJSON(response) {

  return response.json();
}
/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default function request(url, options) {
  return fetch(url, options)
    .then(checkStatus)
    .then(parseJSON)
    .then((data)=>({data}))
    .catch((err) => ({ err }));
}
</code>

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yii2 的rest controller 如下:

<code><?php
namespace api\modules\test\controllers;

use yii;
use yii\helpers\ArrayHelper;
class UsersController extends yii\rest\ActiveController
{
    public $modelClass = '\common\models\User';
    public function behaviors() {
        return ArrayHelper::merge(parent::behaviors(), [
            'corsFilter' => [
                'class' => \yii\filters\Cors::className(),
                'cors' => [
                    // restrict access to
                    'Origin' => ['*'],
                    'Access-Control-Request-Method' => ['*'],
                    'Access-Control-Request-Headers' => ['*'],
                    'Access-Control-Allow-Credentials' => true,
                    // Allow OPTIONS caching
                    'Access-Control-Max-Age' => 3600,
                    // Allow the X-Pagination-Current-Page header to be exposed to the browser.
                    'Access-Control-Expose-Headers' => ['X-Pagination-Current-Page'],
                ],
            ],
        ]);
    }

    public function actions()
    {
        $actions = parent::actions();
        // 禁用"delete" 和 "create" 操作
        unset($actions['delete'], $actions['create']);
        return $actions;
    }
}</code>

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回复内容：

当前api 返回信息的头部已包含下列信息

<code>x-pagination-current-page:1
x-pagination-page-count:35
x-pagination-per-page:12
x-pagination-total-count:411</code>

登录后复制

我希望将返回的的data重新包装下,使data对象包含list(原来的返回结果), 服务器头信息的x-pagination-total-count,x-pagination-page-count.等信息

请问各位大神, 如何才能包装成我需要的对象呢? 谢谢!!!

请求代码如下:

<code> const {data} = yield call(query, parse(payload));
      if (data) {
        console.log(data); //!!!这里!!!  我希望将这里返回的data 重新包装下,使data对象list, 服务器头信息,x-pagination-total-count,x-pagination-page-count.等信息 
        // 但是现在 我只能获取到, 纯粹的rest返回结果 是个数组. 我尝试在 request类中重新封装数据, 各种尝试都失败了. 各种搜  可能是关键词不对  也没有找到解决办法. 
        yield put({
          type: 'querySuccess',
          payload: {
            list: data.list,
            total: Number(data.total),
            current: Number(data.current),
            pageSize: data.pageSize ? data.pageSize : 12,
          }
        });
      }</code>

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异步方法如下:

<code>export async function query(params) {
  return request(`/api/users?${qs.stringify(params)}`);
}</code>

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request类如下:

<code>import fetch from 'dva/fetch';

function checkStatus(response) {
  if (response.status >= 200 && response.status < 300) {
    //这里是可以读取到这些信息的. 但是我不会重新包装. 
    console.log(response.headers.get('x-pagination-page-count')); //35
    console.log(response.headers.get('x-pagination-total-count')); //411
    return response;
  }
  const error = new Error(response.statusText);
  error.response = response;
  throw error;
}

function parseJSON(response) {

  return response.json();
}
/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default function request(url, options) {
  return fetch(url, options)
    .then(checkStatus)
    .then(parseJSON)
    .then((data)=>({data}))
    .catch((err) => ({ err }));
}
</code>

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yii2 的rest controller 如下:

<code><?php
namespace api\modules\test\controllers;

use yii;
use yii\helpers\ArrayHelper;
class UsersController extends yii\rest\ActiveController
{
    public $modelClass = '\common\models\User';
    public function behaviors() {
        return ArrayHelper::merge(parent::behaviors(), [
            'corsFilter' => [
                'class' => \yii\filters\Cors::className(),
                'cors' => [
                    // restrict access to
                    'Origin' => ['*'],
                    'Access-Control-Request-Method' => ['*'],
                    'Access-Control-Request-Headers' => ['*'],
                    'Access-Control-Allow-Credentials' => true,
                    // Allow OPTIONS caching
                    'Access-Control-Max-Age' => 3600,
                    // Allow the X-Pagination-Current-Page header to be exposed to the browser.
                    'Access-Control-Expose-Headers' => ['X-Pagination-Current-Page'],
                ],
            ],
        ]);
    }

    public function actions()
    {
        $actions = parent::actions();
        // 禁用"delete" 和 "create" 操作
        unset($actions['delete'], $actions['create']);
        return $actions;
    }
}</code>

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