在 React 组件之外使用路由信息
Using routing info outside of the React Component
我正在使用提取到外部的提取函数,以便它可以在整个应用程序中使用。每当我想发出任何 API 请求时,我都会调用此包装函数。但这里的问题是,每当服务器 returns 401,100 或我基本上想重定向到登录页面的任何状态代码时,我都需要处理一个案例。但是我不会在这里获得路由信息,知道如何解决这个问题吗?
这个函数看起来像这样:
export module FetchWrapper {
export async function fetchCall(url, type, headers) {
let url = obj.url;
let options = {};
options.method = type;
options.headers = { ...options.headers, ...headers };
const response = await fetch(url, options);
return await response.json();
}
}
任何组件都可以这样使用:
async componentDidMount() {
try {
let response = await FetchWrapper.fetchCall({
url: `/api/fetch/details`,
type: "GET",
headers: { contentType: "application/json" }
});
//on success
} catch (error) {
// error handling
}
}
里面的路由定义App.tsx
<Switch>
<Route exact={true} path="/" component={Start} />
<Route path="/signin" component={SignIn} />
<Route path="/signout" component={SignOut} />
<Route path="/page1" component={Page1} />
<Route path="/page2" component={Page2} />
</Switch>
export module FetchWrapper {
export async function fetchCall(history, {url, type, headers}) {
let url = obj.url;
let options: any = {};
options.method = type;
options.headers = { ...options.headers, ...headers };
const response = await fetch(url, options);
if (response.status === 401 || response.status === 100) {
history.replace("/login");
// you can throw error and catch when execute or what you want
} else {
return await response.json();
}
}
}
async componentDidMount() {
try {
let response = await FetchWrapper.fetchCall(history,{
url: `/api/fetch/details`,
type: "GET",
headers: { contentType: "application/json" }
});
//on success
} catch (error) {
// error handling
}
}
再次检查这两个功能
希望有用
使用 "react-router-dom" 中的 "history" 几乎解决了这个问题。
索引文件里面
import { Router } from "react-router-dom";
import { createBrowserHistory } from "history";
export const history = createBrowserHistory();
ReactDOM.render(
<Router history={history}>
<App />
</Router>,
document.getElementById("root")
);
然后在包装文件中像这样使用它
import { history } from "../../index";
export module FetchWrapper {
export async function fetchCall(url, type, headers) {
let url = obj.url;
let options: any = {};
options.method = type;
options.headers = { ...options.headers, ...headers };
const response = await fetch(url, options);
if (response.status === 401 || response.status === 100) {
history.replace("/login");
} else {
return await response.json();
}
}
}
我正在使用提取到外部的提取函数,以便它可以在整个应用程序中使用。每当我想发出任何 API 请求时,我都会调用此包装函数。但这里的问题是,每当服务器 returns 401,100 或我基本上想重定向到登录页面的任何状态代码时,我都需要处理一个案例。但是我不会在这里获得路由信息,知道如何解决这个问题吗?
这个函数看起来像这样:
export module FetchWrapper {
export async function fetchCall(url, type, headers) {
let url = obj.url;
let options = {};
options.method = type;
options.headers = { ...options.headers, ...headers };
const response = await fetch(url, options);
return await response.json();
}
}
任何组件都可以这样使用:
async componentDidMount() {
try {
let response = await FetchWrapper.fetchCall({
url: `/api/fetch/details`,
type: "GET",
headers: { contentType: "application/json" }
});
//on success
} catch (error) {
// error handling
}
}
里面的路由定义App.tsx
<Switch>
<Route exact={true} path="/" component={Start} />
<Route path="/signin" component={SignIn} />
<Route path="/signout" component={SignOut} />
<Route path="/page1" component={Page1} />
<Route path="/page2" component={Page2} />
</Switch>
export module FetchWrapper {
export async function fetchCall(history, {url, type, headers}) {
let url = obj.url;
let options: any = {};
options.method = type;
options.headers = { ...options.headers, ...headers };
const response = await fetch(url, options);
if (response.status === 401 || response.status === 100) {
history.replace("/login");
// you can throw error and catch when execute or what you want
} else {
return await response.json();
}
}
}
async componentDidMount() {
try {
let response = await FetchWrapper.fetchCall(history,{
url: `/api/fetch/details`,
type: "GET",
headers: { contentType: "application/json" }
});
//on success
} catch (error) {
// error handling
}
}
再次检查这两个功能
希望有用
使用 "react-router-dom" 中的 "history" 几乎解决了这个问题。
索引文件里面
import { Router } from "react-router-dom";
import { createBrowserHistory } from "history";
export const history = createBrowserHistory();
ReactDOM.render(
<Router history={history}>
<App />
</Router>,
document.getElementById("root")
);
然后在包装文件中像这样使用它
import { history } from "../../index";
export module FetchWrapper {
export async function fetchCall(url, type, headers) {
let url = obj.url;
let options: any = {};
options.method = type;
options.headers = { ...options.headers, ...headers };
const response = await fetch(url, options);
if (response.status === 401 || response.status === 100) {
history.replace("/login");
} else {
return await response.json();
}
}
}