在Typescript项目中实现react路由器PrivateRoute

Question

以下是react router的一个示例，介绍如何为受保护的路由添加组件：

function PrivateRoute({ component: Component, ...rest }) {
  return (
    <Route
      {...rest}
      render={props =>
        fakeAuth.isAuthenticated ? (
          <Component {...props} />
        ) : (
          <Redirect
            to={{
              pathname: "/login",
              state: { from: props.location }
            }}
          />
        )
      }
    />
  );
}

https://reacttraining.com/react-router/web/example/auth-workflow

我已经尝试在我的Typescript项目中实现这个功能，使用上面的例子作为灵感。

组件/路线

import PrivateRoute from '../../connectors/PrivateRoute';
<PrivateRoute path="/codes" component={SomePage} />

连接器/专用线路

import { connect } from 'react-redux';
import { AppState } from 'app-types';
import PrivateRouteComponent from '../../components/PrivateRoute';

const mapStateToProps = (state: AppState) => {
    const isSignedIn = state.user.isSignedIn;

    return {
        isSignedIn
    };
};

const PrivateRoute = connect(
    mapStateToProps,
    null
)(PrivateRouteComponent);

export default PrivateRoute;

组件/专用路由

import * as React from 'react';
import {
    Route,
    Redirect,
} from 'react-router-dom';

interface PrivateRouteProps {
    // tslint:disable-next-line:no-any
    component: any;
    isSignedIn: boolean;
    // tslint:disable-next-line:no-any
    location: any;
}

const PrivateRoute = (props: PrivateRouteProps) => {
    const { component: Component, isSignedIn, location, ...rest } = props;

    return (
        <Route
            {...rest}
            render={(routeProps) =>
                isSignedIn ? (
                    <Component {...routeProps} />
                ) : (
                        <Redirect
                            to={{
                                pathname: '/signin',
                                state: { from: location }
                            }}
                        />
                    )
            }
        />
    );
};

export default PrivateRoute;

错误

(105,18): Type '{ path: string; component: ConnectedComponentClass<typeof SomePage, Pick<SomePageProps, never>>; }' is not assignable to type 'Readonly<Pick<PrivateRouteProps, "location" | "component">>'.
  Property 'location' is missing in type '{ path: string; component: ConnectedComponentClass<typeof SomePage, Pick<SomePageProps, never>>; }'.

Answer 1

目前的答案是可行的，但我想发布我的解决方案，因为我认为它有几个优点：

• 不使用类型any覆盖属性组件。
• 利用库中的渲染方法来支持两者-

例子：

import * as React from 'react';
import { connect, ConnectedProps } from 'react-redux';
import {
    Redirect,
    Route,
    RouteProps,
} from 'react-router-dom';
import { AppState } from '../store';

const mapState = (state: AppState) => ({
  loggedIn: state.system.loggedIn,
});

const connector = connect(
  mapState,
  { }
);

type PropsFromRedux = ConnectedProps<typeof connector>;

type Props = PropsFromRedux & RouteProps & {

};

const PrivateRoute: React.FC<Props> = props => {
    const { loggedIn, ...rest } = props;

    return ( !loggedIn ? <Redirect to="/login/" /> :
      <Route {...rest} />
    );
};

export default connector(PrivateRoute);

Answer 2

我发现Matt的回答非常有用，但需要它为子以及组件工作，所以调整如下：

import * as React from 'react';
import { Route, Redirect, RouteProps } from 'react-router-dom';
import { fakeAuth } from '../api/Auth';

interface PrivateRouteProps extends RouteProps {
  // tslint:disable-next-line:no-any
  component?: any;
  // tslint:disable-next-line:no-any
  children?: any;
}

const PrivateRoute = (props: PrivateRouteProps) => {
  const { component: Component, children, ...rest } = props;

  return (
    <Route
      {...rest}
      render={routeProps =>
        fakeAuth.isAuthenticated ? (
          Component ? (
            <Component {...routeProps} />
          ) : (
            children
          )
        ) : (
          <Redirect
            to={{
              pathname: '/signin',
              state: { from: routeProps.location },
            }}
          />
        )
      }
    />
  );
};

export default PrivateRoute;

注意：这碰巧是使用fakeAuth，就像最初的培训文章一样，而不是user1283776的isSignedInredux东西，但是你明白了。

Answer 3

出现此错误的原因是PrivateRouteProps具有所需的属性location，在components/Routes.tsx中使用PrivateRoute时未提供该属性。我假设这个位置应该来自路由器自动传递给路由的render函数的routeProps，就像在原始示例中一样。修复后，会出现另一个错误：components/Routes.tsx正在传递未在PrivateRouteProps中声明的paths属性。由于PrivateRoute正在传递它不知道要Route的任何道具，PrivateRouteProps应该从react router扩展RouteProps，以便PrivateRoute接受Route接受的所有道具。

这是两个修复后的组件/privaterout.tsx：

import * as React from 'react';
import {
    Route,
    Redirect,
    RouteProps,
} from 'react-router-dom';

interface PrivateRouteProps extends RouteProps {
    // tslint:disable-next-line:no-any
    component: any;
    isSignedIn: boolean;
}

const PrivateRoute = (props: PrivateRouteProps) => {
    const { component: Component, isSignedIn, ...rest } = props;

    return (
        <Route
            {...rest}
            render={(routeProps) =>
                isSignedIn ? (
                    <Component {...routeProps} />
                ) : (
                        <Redirect
                            to={{
                                pathname: '/signin',
                                state: { from: routeProps.location }
                            }}
                        />
                    )
            }
        />
    );
};

export default PrivateRoute;