Javascript 类型为'的参数;{…}';不可分配给类型为';语境<;AuthProps>';
在我的Ionic(React)应用程序项目中,我正在使用Firebase创建一个登录和注册界面,下面是我的代码片段Javascript 类型为'的参数;{…}';不可分配给类型为';语境<;AuthProps>';,javascript,reactjs,typescript,firebase,ionic-framework,Javascript,Reactjs,Typescript,Firebase,Ionic Framework,在我的Ionic(React)应用程序项目中,我正在使用Firebase创建一个登录和注册界面,下面是我的代码片段 interface LoginProps extends RouteComponentProps<any> {} interface AuthProps {} const Login: FC<LoginProps> = ({ history }) => { const handleLogin = useCallback( async ev
interface LoginProps extends RouteComponentProps<any> {}
interface AuthProps {}
const Login: FC<LoginProps> = ({ history }) => {
const handleLogin = useCallback(
async event => {
event.preventDefault();
const { email, password } = event.target.elements;
try {
await Firebase
.auth()
.signInWithEmailAndPassword(email.value, password.value);
history.push("/dashboard");
} catch (error) {
alert(error);
}
},
[history]
);
const { currentUser } = useContext<AuthProps>(AuthContext);
if (currentUser) {
return <Redirect to="/" />;
}
接口登录操作扩展了RouteComponentProps{}
接口AuthProps{}
常量登录名:FC=({history})=>{
const handleLogin=useCallback(
异步事件=>{
event.preventDefault();
const{email,password}=event.target.elements;
试一试{
等待火力基地
.auth()
.使用email和password(email.value、password.value)进行登录;
历史。推送(“/仪表板”);
}捕获(错误){
警报(错误);
}
},
[历史]
);
const{currentUser}=useContext(AuthContext);
如果(当前用户){
返回;
}
我收到以下错误消息:
[react scripts]在/Users/matheusilra/Desktop/brasilsul-repasse/src/pages/Login.tsx(43,49)中键入脚本错误:
“{AuthContext:react.Context;AuthProvider:({children}:{children:any;})=>JSX.Element;}”类型的[react scripts]参数不能分配给“Context”类型的参数
[react scripts]类型“{AuthContext:Context;AuthProvider:({children}:{children:any;})=>Element;}”缺少类型“Context”中的以下属性:提供程序、使用者TS2345
错误消息指向这部分代码:
const{currentUser}=useContext(AuthContext)
我不知道如何修正这个错误
//编辑
AuthContext代码
import React, { useEffect, useState, createContext } from "react"
import Firebase from "./firebase"
export const AuthContext = createContext(null)
export const AuthProvider = ({ children }) => {
const [currentUser, setCurrentUser] = useState(null)
useEffect(() => {
Firebase.auth().onAuthStateChanged(setCurrentUser)
}, [])
return (<AuthContext.Provider value = {{currentUser}} >{children}</AuthContext.Provider>)
}
export default {
AuthContext,
AuthProvider
}
import React,{useffect,useState,createContext}来自“React”
从“/Firebase”导入Firebase
export const AuthContext=createContext(null)
导出常量AuthProvider=({children})=>{
常量[currentUser,setCurrentUser]=useState(null)
useffect(()=>{
Firebase.auth().onAuthStateChanged(setCurrentUser)
}, [])
返回({children})
}
导出默认值{
AuthContext,
授权提供者
}
这是我的解决方案,看起来效果不错
// context-fb.tsx
import React, { useEffect, useState, createContext } from "react";
import Firebase, { User } from "firebase";
export interface IAuthContext {
user: User;
}
const AuthContext = createContext<IAuthContext | null>(null);
const AuthProvider: React.FC = ({ children }) => {
const [currentUser, setCurrentUser] = useState<IAuthContext | null>(null);
useEffect(() => {
Firebase.auth().onAuthStateChanged((user: any) => {
console.log('state set', user)
setCurrentUser({ user });
});
}, []);
return (
<AuthContext.Provider value={currentUser}>{children}</AuthContext.Provider>
);
};
export default {
AuthContext,
AuthProvider
};
//context-fb.tsx
从“React”导入React,{useffect,useState,createContext};
从“Firebase”导入Firebase,{User};
导出接口IAuthContext{
用户:用户;
}
const AuthContext=createContext(null);
const AuthProvider:React.FC=({children})=>{
const[currentUser,setCurrentUser]=useState(null);
useffect(()=>{
Firebase.auth().onAuthStateChanged((用户:任意)=>{
console.log('状态集',用户)
setCurrentUser({user});
});
}, []);
返回(
{儿童}
);
};
导出默认值{
AuthContext,
授权提供者
};
Login.tsx的基本部分
import React, { FC, useCallback, useContext } from "react";
import { RouteComponentProps, Redirect } from "react-router";
import Firebase from "firebase";
import Stuff, { IAuthContext } from "../context-fb";
interface LoginProps extends RouteComponentProps<any> {}
const Login: FC<LoginProps> = ({ history }) => {
const handleLogin = useCallback(
async event => {
event.preventDefault();
const { email, password } = event.target.elements;
try {
await Firebase.auth().signInWithEmailAndPassword(
email.value,
password.value
);
history.push("/dashboard");
} catch (error) {
alert(error);
}
},
[history]
);
const authInfo = useContext<IAuthContext|null>(Stuff.AuthContext);
console.log("rendered login", authInfo?.user )
return authInfo?.user ? <Redirect to="/home" /> : <div></div>;
};
export default Login
import React,{FC,useCallback,useContext}来自“React”;
从“react router”导入{RouteComponentProps,Redirect};
从“Firebase”导入Firebase;
从“./context fb”导入内容,{IAuthContext};
接口LoginProps扩展了RouteComponentProps{}
常量登录名:FC=({history})=>{
const handleLogin=useCallback(
异步事件=>{
event.preventDefault();
const{email,password}=event.target.elements;
试一试{
等待Firebase.auth().使用Email和Password进行登录(
email.value,
password.value
);
历史。推送(“/仪表板”);
}捕获(错误){
警报(错误);
}
},
[历史]
);
const authInfo=useContext(Stuff.AuthContext);
console.log(“呈现登录”,authInfo?.user)
返回authInfo?用户?:;
};
导出默认登录名
然后是我的App.tsx
import Stuff from "./context-fb";
const App: React.FC = () => {
return <IonApp>
<IonReactRouter>
<Stuff.AuthProvider>
<IonRouterOutlet>
<Route path="/home" component={Home} exact={true} />
<Route path="/login" component={Login} exact={true} />
<Route exact path="/" render={() => <Redirect to="/login" />} />
</IonRouterOutlet>
</Stuff.AuthProvider>
</IonReactRouter>
</IonApp>
};
export default App;
从“/context fb”导入内容;
常量应用程序:React.FC=()=>{
返回
} />
};
导出默认应用程序;
AuthProps
应该是??。。。其中是AuthContext
,我认为从AuthContext提供代码会很有帮助。我添加了AuthContext代码。如果上下文文件的扩展名是.tsxYes,我所有的文件都有.tsx扩展名