As we get a few questions via email it is time to copy some of them over to here:
I’ve run into a problem using the Matrix API via POST request. It cannot seem to find the locations …
java.lang.IllegalArgumentException","message":"Cannot find from_points:
Here the problem was that the GET request uses the location format
point=latitude1,longitude1&point=latitude2,longitude2&...
but for the POST request you need to use an array which follows the GeoJSON standard
"points":[[longitude1,latitude1], [longitude2,latitude2], ... ]