你好,这是我第一次来这里。
在过去的几个小时中,我一直在努力解决此问题,但我无法理解该问题(我是新来的反应者)。
在PrivateRoute
中,我试图基于会话呈现身份验证组件。
我得到的错误是:
Objects are not valid as a React child (found: [object Promise]).
If you meant to render a collection of children, use an array instead.
我们将不胜感激!
这是我到目前为止所做的:
import Login from './Login'
import Register from './Register'
import React, {Component} from 'react'
import Authentication from './Authentication'
import { BrowserRouter , Redirect, Route, Switch,} from 'react-router-dom'
const Authorization= ()=>{
return new Promise ((resolve,reject)=>{
fetch('http://localhost:3000/content',{credentials:'include'}) //includes cookie from different port
.then((res)=>res.json())
.then((data)=>{
if (data.user=="notLogged"){
reject(false)
}else
resolve(true)
})
})
}
const PrivateRoute= async ({ component: Component})=> {
var auth= await Authorization()
console.log(auth);
if (auth){
return <Authentication/>
}else{
return <Component/>
}
}
class Index extends Component{
render(){
return(
<BrowserRouter>
{/* router may have only one child element- switch is the more common */}
<Switch>
<PrivateRoute exact path="/" component={Login}/>
<PrivateRoute exact path="/login" component={Login} />
<Route exact path="/register" component={Register} />
</Switch>
</BrowserRouter>
)
}
}
export default Index
答案 0 :(得分:2)
找到了我的帖子的答案。
我一直做错了。
这是我到目前为止想出的
String.format()
工作正常!