How to add navigation extension to open source routing enging

tayef · May 4, 2020, 6:14pm

Hi, Thank you for a wonderful product. I would like to know how can we add the open-source graphhopper-navigation extension to the open-source routing engine

karussell · May 4, 2020, 7:02pm

Thanks for the kind words. I have added a few points for this in the readme:

github.com

graphhopper/graphhopper-navigation/blob/master/README.md#integration-with-your-dropwizard-application

# GraphHopper Navigation Web Service

[![Build Status](https://travis-ci.org/graphhopper/graphhopper-navigation.svg?branch=master)](https://travis-ci.org/graphhopper/graphhopper-navigation)

This web service returns JSON from the [GraphHopper routing engine](https://github.com/graphhopper/graphhopper) that is consumable with the [Android Navigation SDK](https://github.com/graphhopper/graphhopper-navigation-android). I.e. it provides the server side part of a navigation application.

An example for an Android app that uses the Navigation SDK is provided in [this repository](https://github.com/graphhopper/graphhopper-navigation-example).

# Integration with your Dropwizard application

 1. Create your Application class that adds the [GraphHopperBundle](https://github.com/graphhopper/graphhopper/blob/1.0-pre38/web-bundle/src/main/java/com/graphhopper/http/GraphHopperBundle.java). See this [MapMatchingApplication](https://github.com/graphhopper/map-matching/blob/1.0-pre38/matching-web/src/main/java/com/graphhopper/matching/http/MapMatchingApplication.java) class as an example.
 2. In the run method of this class call `environment.jersey().register(NavigateResource.class);` 

Or create your own bundle similar to the mentioned GraphHopperBundle and add the NavigateResource there.

# Community-Driven Alternatives

maphopper: https://github.com/Gadda27/maphopper

does this explain what you need?

tayef · May 5, 2020, 9:31am

@karussell thank you for the prompt reply. We were looking for this. So just add another question we need to recompile to routing engine after adding this extension?

karussell · May 5, 2020, 9:44am

In the process you create your own dropwizard application and then set the routing engine as dependency. So, you’ll not recompile everything but only your own dropwizard application.

system · August 3, 2020, 9:45am

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