Suppose you have 50 deliveries and you hire four drivers to make those deliveries. Each driver is either paid for a certain number of hours or is paid for a certain number of jobs. In this case, you wouldn’t necessarily want one driver to get all 50 deliveries, even if this minimizes the total variable […]

Imagine you are in a foreign city and need to visit fifty different locations that day. Which way should you go? Or let alone which is the best order to visit all these places? GraphHopper’s Route Optimization API is a powerful tool that lets you easily calculate efficient round tours like this for a selection […]

Introduction A few years ago, we wrote a tutorial to show you how to model a traveling salesman problem with a week-planning horizon. Since then we have been improving our API a lot and I would like to show you how easy it is now to model this with driver shifts. For example, suppose you […]

We are happy to announce further improvements of our services. Please note that we will remove the possibility to use TLS 1.0 and 1.1 in approx. 6 weeks. On 1. September these older protocols won’t be possible anymore. Nearly all clients should use more recent versions already, so highly likely no action must be taken […]

The Route Optimization API works via an HTTP endpoint and you POST a JSON document to https://graphhopper.com/api/1/vrp?key=[YOUR_KEY] This requires an API key that you can get here: login and go to API keys and generate an API key by clicking the Add API key button. Copy it and paste it to [YOUR_KEY]. Let us start […]