How should I enter coordinates for the Routing API?
The Routing API uses latitude and longitude (EPSG4326/WGS84) coordinates for both input and output. The request must have a start point and an end point, and may have up to 50 intermediate waypoints between them. All input coordinates must be colon-delimited latitude,longitude pairs (lat1,lon1:lat2,lon2:lat3,lon3...). The first and last coordinates will be used as the start and end points of the route.