How to get params router in componentWillMount?

Question

React

I have router
in EntityPage in componentWillMount function tried to get parameter like this

componentWillMount() {
    console.log(this.params.entity_id);

but this.params doesn't come there. how to get this.params?

Answer 1

The router should have:

...
<Route path='/signin/:название_параметра' component={Компонент} />
...

in a component inside componentWillMount call this. props .params.parameter_name