TravelTime Matrix Fast Protobuff API request for 100,000 locations

distancematrix100k.json

{
  "country": "uk",
  "departureLocation": {
    "lat": 51.5119637,
    "lng": -0.1279543
  },
  "destinationCoordinates": [
    {
      "lat": 51.51169250837311,
      "lng": -0.1180740098588654
    },
    {
      "lat": 51.49889396413775,
      "lng": -0.09131661480356021
    },
    ... // The rest of locations
  ],
  "transportation": "driving+ferry",
  "travelTime": 1800
}