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Directions API with minimal bandwidth usage

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#1

The GraphHopper Directions API is tuned towards low bandwidth usage. E.g. we support http/2 and gzipped responses. Then e.g. the Routing API supports to compress the routing geometry in a special format to further reduce bandwidth (you can disable this via points_encoded=false) or returns path details in a compact format.

Now we added support to gzip POST requests (not just the response) to reduce the bandwidth usage for the Matrix and Route Optimization API. The only change you need is to specify the header Content-Encoding: gzip for those requests. This is important if you face “request entity too large” for the Route Optimization or Matrix API.

You can find the latest information about this topic in our documentation.