reactjs - Detect previous path in react router? -

i using react router. want detect previous page (within same app) coming from. have router in context. but, don't see properties "previous path" or history on router object. how do it?

you can save previous path in componentwillreceiveprops lifecycle method. logic close 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 state.