I am using react router. I want to detect the previous page (within the same app) from where I am coming from. I have the router in my context. But, I don't see any properties like "previous path" or history on the router object. How do I do it?
You can save previous path in a componentWillReceiveProps
lifecycle method. The logic is very close to the example provided in troubleshooting section of react-router
docs.
<Route component={App}>
{/* ... other routes */}
</Route>
const App = React.createClass({
getInitialState() {
return { prevPath: '' }
},
componentWillReceiveProps(nextProps) {
if (nextProps.location !== this.props.location) {
this.setState({ prevPath: this.props.location })
}
}
})
And lately, access it from the state.