Meteor, React-Router , react-komposer - passing parameter - reactjs

Question

How to acces query parameter in container, using react-router and react-kompose:
I am tying like this but it is not working:
routes.js
...
Meteor.startup(() => {
render(
<Router history={ browserHistory }>
<Route path="/" component={ App }>
<IndexRoute name="index" component={ Index } onEnter={ requireAuth } />
<Route name="documents" path="/documents" component={ Documents } onEnter={ requireAuth } />
<Route name="list-projects" path="/list-projects" component={ Projects } onEnter={ requireAuth } />
<Route name="add-project" path="/add-project" component={ AddProjectPage } onEnter={ requireAuth } />
<Route name="project-detail" path="/project/:projectId" component={ProjectDetailPage} onEnter={ requireAuth } />
<Route name="login" path="/login" component={ Login } />
<Route name="recover-password" path="/recover-password" component={ RecoverPassword } />
<Route name="reset-password" path="/reset-password/:token" component={ ResetPassword } />
<Route name="signup" path="/signup" component={ Signup } />
<Route path="*" component={ NotFound } />
</Route>
</Router>,
document.getElementById('react-root')
);
});
container1.js
import { composeWithTracker } from 'react-komposer';
import { Projects } from '../../api/projects/projects.js';
import { ProjectDetail } from '../components/project-detail.js';
import { Loading } from '../components/loading.js';
import { Meteor } from 'meteor/meteor';
const composer = (params, onData) => {
const subscription = Meteor.subscribe('projects');
if (subscription.ready()) {
const project = Projects.find({_id:params._id}).fetch();
onData(null, { project});
}
};
export default composeWithTracker(composer, Loading)(ProjectDetail);

Answer 1

You probably figured it out by now, but you can get parameters inside props of the container like so, using your example just a little modified:
const composer = (props, onData) => {
const subscription = Meteor.subscribe('projects');
if (subscription.ready()) {
const project = Projects.find({_id:props.params.projectId}).fetch();
onData(null, { project});
}
};
export default composeWithTracker(composer, Loading)(ProjectDetail);
React Router will pass everything to its child components. props is an object, so you can access the params just by getting the value of props.params. You can access many more things inside your container depending on your needs.