Question

当前，我使用http，我发现一种方法可以一次发送多个请求以使用axios进行响应。

axios.all([
    axios.get('http://google.com'),
    axios.get('http://apple.com')
  ])
  .then(axios.spread((googleRes, appleRes) => {
    // do something with both responses
  });

就像这样，一次发送多个请求有什么办法吗？

Answer 1

import 'dart:async';

import 'package:http/http.dart' as http;

Future<void> main() async {
  var requests = <Future<http.Response>>[];
  requests.add(http.get('http://google.com'));
  requests.add(http.get('http://apple.com'));
  var responses = await Future.wait(requests);
  for (var result in responses) {
    if (result.statusCode != 200) {
      print('Something went wrong');
      break;
    }
  }
}

Answer 2

@mezoni答案是正确的。但这也减少了缓存代码。

import 'dart:async';
import 'dart:convert';

import 'package:http/http.dart' as http;

void main() async {
  final urlList = ['http://google.com', 'http://apple.com'];

  final responses = await Future.wait(
    urlList.map((String url) {
      return http.get(url);
    }),
  );

  final List<Map<String, dynamic>> caches = responses.map((response) {
    return json.decode(response.body);
  });
}

如何一次发送多个API请求？

2 个答案: