I'm using the here REST routing API (https://developer.here.com/rest-apis/documentation/routing/topics/api-reference.html) and I noticed that the responses I get for the same request are sometimes different. I looked into the JSON response and I noticed that the mapVersion, moduleVersion and interfaceVersion were different.
I looked into the documentation to find a way to specify the mapVersion/moduleVersion/interfaceVersion I want but I could not find any.
Is there a way to be sure that subsequent calls to the routing API will be performed with the same server or at least the same data and algorithm?
Example of request for which I got a different response with subsequent calls:
Request:
http://route.api.here.com/routing/7.2/calculateroute.json?&mode=shortest;car;traffic:disabled&representation=display&&app_id=<APPID>&app_code=<APPCODE>&waypoint0=geo!48.7536638,-3.4404475&waypoint1=geo!48.7532906,-3.4402628&waypoint2=geo!48.7529834,-3.4415456&waypoint3=geo!48.7526572,-3.4413922&waypoint4=geo!48.7532489,-3.4399076&waypoint5=geo!48.7536333,-3.43932
Response1:
{"response":{"metaInfo":{"timestamp":"2017-01-20T10:56:55Z","mapVersion":"8.30.64.152","moduleVersion":"7.2.74.0-71276","interfaceVersion":"2.6.25"},"route": <...>
Reponse2:
{"response":{"metaInfo":{"timestamp":"2017-01-20T10:58:38Z","mapVersion":"8.30.67.153","moduleVersion":"7.2.201703-97140","interfaceVersion":"2.6.29"},"route":
Here support answer :
The issue with different versions is not seen now, it might have been only a temporary one. It could be a very unlikely coincidence that you had noticed this when our services in the servers were being updated.
Please understand that the Map Data used by the different services are updates on a weekly/biweekly basis and an updated version of the service itself is released to the servers on a monthly basis. So there could be changes in these versions from time to time, but there is no options to use a specific map version or module version for your request.
But ideally you should not see a difference in the main route response parameters for the same routing request, unless there is a considerable map data change for these regions.