Here API: Matrix Routing API V8 - Asynchronus request - Receiving error when retrieving calculation status

Question

I'm currently developing a little algorithm to solve the VRP. I herefore use the HERE Matrix Routing API to identify the actual travel times. I just came across the issue, that the retrieved status url after submitting the matrix seems to not accept the API key authorization. Here a little exapmle:

After submitting my matrix, I try to access the status of my calculation via the status url as described in the documentation:

https://matrix.router.hereapi.com/v8/matrix/{matrixId}/status?apiKey={apiKey}

as well as with the returned status url after submitting the request (which is basically the above URL prefilled and with resolved forwarding):

https://aws-eu-west-1.matrix.router.hereapi.com/v8/matrix/{matrixId}/status?apiKey={apiKey}

From my understanding and the way how it's documented, I expect this to be working. Instead, I'm receiving an error code 401, Unauthorized: No credentials found

My request succeeds, when I'm deleting the /status after the matrixId. Is this the expected behaviour or did I reveal a little bug?

Thanks for your help! BR, Difreg

Answer 1

This is unfortunately due to a combination of how the service operates, and how some client libraries are configured to automatically follow HTTP redirects, like Python requests.

I answered a similar question a few days ago, and you can see the answer here.

Hopefully that helps you figure it out, but if it doesn't, feel free to ask again here.