reactjs - 在 Typescript 项目中实现 react-router PrivateRoute

Question

这是一个来自 react-router 的例子，说明如何为 protected 路由添加一个组件:

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

我尝试在我的 Typescript 项目中实现此功能，以上面的示例为灵感。

组件/路由

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

连接器/PrivateRoute

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/PrivateRoute

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

错误发生是因为 PrivateRouteProps 有一个必需的属性 location 当你在 components/Routes 中使用 PrivateRoute 时没有提供.tsx。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，就像它在原始示例中所做的那样。修复此问题后，会暴露另一个错误:components/Routes.tsx 正在传递未在 PrivateRouteProps 中声明的 paths 属性。由于 PrivateRoute 将它不知道的任何 Prop 传递给 Route，PrivateRouteProps 应该从 扩展 RouteProps >react-router 以便 PrivateRoute 接受 Route 接受的所有 Prop 。

这是两个修复后的 components/PrivateRoute.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;