Jira开发实战：Fetch封装HTTP请求的详细解析

const apiUrl = process.env.REACT_APP_API_URL;
interface Config extends RequestInit {
  token?: string;
  data?: object;
}
export const http = async (
  endpoint: string,
  { data, token, headers, ...customConfig }: Config = {}
) => {
  const config = {
    method: "GET",
    headers: {
      Authorization: token ? `Bearer ${token}` : "",
      "Content-Type": data ? "application/json" : "",
    },
    ...customConfig,
  };

  if (config.method.toUpperCase() === "GET") {
    endpoint += `?${qs.stringify(data)}`;
  } else {
    config.body = JSON.stringify(data || {});
  }

  // axios 和 fetch 的表现不一样，axios可以直接在返回状态不为2xx的时候抛出异常
  return window
    .fetch(`${apiUrl}/${endpoint}`, config)
    .then(async (response) => {
      if (response.status === 401) {
        await auth.logout();
        window.location.reload();
        return Promise.reject({ message: "请重新登录" });
      }
      const data = await response.json();
      if (response.ok) {
        return data;
      } else {
        return Promise.reject(data);
      }
    });
};
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.