Pass props in Link react-router

Pass props in Link react-router

I am using react with react-router.
I am trying to pass property’s in a “Link” of react-router
var React = require(‘react’);
var Router = require(‘react-router’);
var CreateIdeaView = require(‘./components/createIdeaView.jsx’);

var Link = Router.Link;
var Route = Router.Route;
var DefaultRoute = Router.DefaultRoute;
var RouteHandler = Router.RouteHandler;
var App = React.createClass({
render : function(){
return(

Create Idea

);
}
});

var routes = (




);

Router.run(routes, function(Handler) {

React.render(, document.getElementById(‘main’))
});

The “Link” renders the page but does not pass the property to the new view.
Below is the view code
var React = require(‘react’);
var Router = require(‘react-router’);

var CreateIdeaView = React.createClass({
render : function(){
console.log(‘props form link’,this.props,this)//props not recived
return(

Create Post:


);
}
});

module.exports = CreateIdeaView;

How can I pass data using “Link”?

Solutions/Answers:

Solution 1:

This line is missing path:

<Route name="ideas" handler={CreateIdeaView} />

Should be:

<Route name="ideas" path="/:testvalue" handler={CreateIdeaView} />

Given the following Link:

<Link to="ideas" params={{ testvalue: "hello" }}>Create Idea</Link>

From the link that you posted on the docs, towards the bottom of the page:

Given a route like <Route name="user" path="/users/:userId"/>


Updated code example with some stubbed query examples:

// import React, {Component, Props, ReactDOM} from 'react';
// import {Route, Switch} from 'react-router'; etc etc
// this snippet has it all attached to window since its in browser
const {
  BrowserRouter,
  Switch,
  Route,
  Link,
  NavLink
} = ReactRouterDOM;

class World extends React.Component {
  constructor(props) {
    super(props);
    console.dir(props);      
    this.state = {
      fromIdeas: props.match.params.WORLD || 'unknown'
    }
  }
  render() {
    const { match, location} = this.props;
    return (
      <React.Fragment>
        <h2>{this.state.fromIdeas}</h2>
        <span>thing: 
          {location.query 
            && location.query.thing}
        </span><br/>
        <span>another1: 
        {location.query 
          && location.query.another1 
          || 'none for 2 or 3'}
        </span>
      </React.Fragment>
    );
  }
}

class Ideas extends React.Component {
  constructor(props) {
    super(props);
    console.dir(props);
    this.state = {
      fromAppItem: props.location.item,
      fromAppId: props.location.id,
      nextPage: 'world1',
      showWorld2: false
    }
  }
  render() {
    return (
      <React.Fragment>
          <li>item: {this.state.fromAppItem.okay}</li>
          <li>id: {this.state.fromAppId}</li>
          <li>
            <Link 
              to={{
                pathname: `/hello/${this.state.nextPage}`, 
                query:{thing: 'asdf', another1: 'stuff'}
              }}>
              Home 1
            </Link>
          </li>
          <li>
            <button 
              onClick={() => this.setState({
              nextPage: 'world2',
              showWorld2: true})}>
              switch  2
            </button>
          </li>
          {this.state.showWorld2 
           && 
           <li>
              <Link 
                to={{
                  pathname: `/hello/${this.state.nextPage}`, 
                  query:{thing: 'fdsa'}}} >
                Home 2
              </Link>
            </li> 
          }
        <NavLink to="/hello">Home 3</NavLink>
      </React.Fragment>
    );
  }
}


class App extends React.Component {
  render() {
    return (
      <React.Fragment>
        <Link to={{
          pathname:'/ideas/:id', 
          id: 222, 
          item: {
              okay: 123
          }}}>Ideas</Link>
        <Switch>
          <Route exact path='/ideas/:id/' component={Ideas}/>
          <Route path='/hello/:WORLD?/:thing?' component={World}/>
        </Switch>
      </React.Fragment>
    );
  }
}

ReactDOM.render((
  <BrowserRouter>
    <App />
  </BrowserRouter>
), document.getElementById('ideas'));
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-router-dom/4.3.1/react-router-dom.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-router/4.3.1/react-router.min.js"></script>

<div id="ideas"></div>

updates:

See: https://github.com/ReactTraining/react-router/blob/0c6d51cd6639aff8a84b11d89e27887b3558ed8a/upgrade-guides/v2.0.0.md#link-to-onenter-and-isactive-use-location-descriptors

From the upgrade guide from 1.x to 2.x:

<Link to>, onEnter, and isActive use location descriptors

<Link to> can now take a location descriptor in addition to strings.
The query and state props are deprecated.

// v1.0.x

<Link to="/foo" query={{ the: 'query' }}/>

// v2.0.0

<Link to={{ pathname: '/foo', query: { the: 'query' } }}/>

// Still valid in 2.x

<Link to="/foo"/>

Likewise, redirecting from an onEnter hook now also uses a location
descriptor.

// v1.0.x

(nextState, replaceState) => replaceState(null, '/foo')
(nextState, replaceState) => replaceState(null, '/foo', { the: 'query' })

// v2.0.0

(nextState, replace) => replace('/foo')
(nextState, replace) => replace({ pathname: '/foo', query: { the: 'query' } })

For custom link-like components, the same applies for router.isActive,
previously history.isActive.

// v1.0.x

history.isActive(pathname, query, indexOnly)

// v2.0.0

router.isActive({ pathname, query }, indexOnly)

updates for v3 to v4:

“legacy migration documentation” for posterity

Solution 2:

there is a way you can pass more than one parameter. You can pass “to” as object instead of string.

// your route setup
<Route path="/category/:catId" component={Category} / >

// your link creation
const newTo = { 
  pathname: "/category/595212758daa6810cbba4104", 
  param1: "Par1" 
};
// link to the "location"
// see (https://reacttraining.com/react-router/web/api/location)
<Link to={newTo}> </Link>

// In your Category Component, you can access the data like this
this.props.match.params.catId // this is 595212758daa6810cbba4104 
this.props.location.param1 // this is Par1

Solution 3:

I had the same problem to show an user detail from my application.

You can do this:

<Link to={'/ideas/'+this.props.testvalue }>Create Idea</Link>

or

<Link to="ideas/hello">Create Idea</Link>

and

<Route name="ideas/:value" handler={CreateIdeaView} />

to get this via this.props.match.params.value at your CreateIdeaView class.

You can see this video that helped me a lot: https://www.youtube.com/watch?v=ZBxMljq9GSE

Solution 4:

as for react-router-dom 4.x.x (https://www.npmjs.com/package/react-router-dom) you can pass params to the component to route to via:

<Route path="/ideas/:value" component ={CreateIdeaView} />

linking via (considering testValue prop is passed to the corresponding component (e.g. the above App component) rendering the link)

<Link to={`/ideas/${ this.props.testValue }`}>Create Idea</Link>

passing props to your component constructor the value param will be available via

props.match.params.value

Solution 5:

Route:

<Route state={this.state} exact path="/customers/:id" render={(props) => <PageCustomer {...props} state={this.state} />} />

And then can access params in your PageCustomer component like this: this.props.match.params.id.

For example an api call in PageCustomer component:

axios({
   method: 'get',
   url: '/api/customers/' + this.props.match.params.id,
   data: {},
   headers: {'X-Requested-With': 'XMLHttpRequest'}
 })