React Router v4 Gets Current Location

Question

I just started using the V4 reactive router and I want to know how to get the current location of the router

This is my source code.

import {Meteor} from 'meteor/meteor';
import React, {Component} from 'react';
import ReactDOM from 'react-dom';
import createHistory from 'history/createBrowserHistory'
import {Route, BrowserRouter as Router, Switch} from 'react-router-dom'
import {Tracker} from 'meteor/tracker';

import Signup from '../imports/ui/signUp';
import Link from '../imports/ui/link';
import Login from '../imports/ui/login';
import NotFound from '../imports/ui/notFound';

const history = createHistory();
const unauthenticatedPages = ['/', '/signup'];
const authenticatedPages = ['/links'];

const routes = (
    <Router history={history}>
        <Switch>
            <Route exact path="/" component={Login}/>
            <Route exact path="/signup" component={Signup}/>
            <Route path="/links" component={Link}/>
            <Route component={NotFound}/>
        </Switch>
    </Router>
);
Tracker.autorun(() => {
    const unlisten = history.listen((location, action) => {
        // location is an object like window.location
        console.log(action, location.pathname, location.state)
    })

    const isAuthenticated = !!Meteor.userId();
    console.log('location: ', location.pathname);
    //const pathName =
});

Meteor.startup(() => {
    ReactDOM.render(routes, document.getElementById('app'));
}); 

I tried using the history according to the reaction-router documentation, but I did not get it.

How to get the current location of the route?

I do not use redux, and I will be grateful for it without it.

Thanks Michael.

Answer 1

You can use withrouterHOC for this. It will re-display the wrapped component at any time when the route changes. Here is an example -

import {Meteor} from 'meteor/meteor';
import React, {Component} from 'react';
import ReactDOM from 'react-dom';
import createHistory from 'history/createBrowserHistory'
import {Route, BrowserRouter as Router, Switch} from 'react-router-dom'
import {withRouter} from 'react-router'
import {Tracker} from 'meteor/tracker';

import Signup from '../imports/ui/signUp';
import Link from '../imports/ui/link';
import Login from '../imports/ui/login';
import NotFound from '../imports/ui/notFound';

const history = createHistory();
const unauthenticatedPages = ['/', '/signup'];
const authenticatedPages = ['/links'];

const
ChangeTracker = withRouter(({match, location, history}) => {
    console.log(action, location.pathname, location.state);
    return false;
}),
routes = (
    <Router history={history}>
        <Switch>
            <Route exact path="/" component={Login}/>
            <Route exact path="/signup" component={Signup}/>
            <Route path="/links" component={Link}/>
            <Route component={NotFound}/>
        </Switch>
        <ChangeTracker />
    </Router>
);

Meteor.startup(() => {
    ReactDOM.render(routes, document.getElementById('app'));
}); 

Answer 2

- , ChangeTracker :

const ChangeTracker = withRouter(({match, location, history}) => {
  const pathName = location.pathname;
  isUnauthenticatedPage = unauthenticatedPages.includes(pathName);
  isAuthenticatedPage = authenticatedPages.includes(pathName);

  return false;
});

Tracker.autorun :

Tracker.autorun(()=>{
  const isAuthenticated = !!Meteor.userId();
    if (isAuthenticated){
      if (isUnauthenticatedPage){
        history.push('/links');
      }
    }else{
      if (isAuthenticatedPage) {
        history.push('/');
      }
    }
});

Answer 3

v4 history.location, history.location.pathname. github React Router Training.

, :

import {Meteor} from 'meteor/meteor';
import React, {Component} from 'react';
import ReactDOM from 'react-dom';
import createHistory from 'history/createBrowserHistory'
import { Route, Router, Switch } from 'react-router-dom'
import {Tracker} from 'meteor/tracker';

import Signup from '../imports/ui/signUp';
import Link from '../imports/ui/link';
import Login from '../imports/ui/login';
import NotFound from '../imports/ui/notFound';

const history = createHistory();
const unauthenticatedPages = ['/', '/signup'];
const authenticatedPages = ['/links'];

const routes = (
    <Router history={history}>
        <Switch>
            <Route exact path="/" component={Login}/>
            <Route exact path="/signup" component={Signup}/>
            <Route path="/links" component={Link}/>
            <Route component={NotFound}/>
        </Switch>
    </Router>
);
Tracker.autorun(() => {
    const isAuthenticated = !!Meteor.userId();
    const pathname = history.location.pathname;
    //Now you can do whatever you want here
});

Hide result

! BrowserRouter , BrowserRouter , , , , { Router } from 'react-router-dom', BrowserRouter , .