- enable proto distance

- add disclaimer to readme on proto distance

README.md

@@ -345,6 +345,40 @@ response = client.time_filter_fast_proto(
 puts(response.body)
 ```
 
+### Time Filter (Fast) Proto Distance
+A version of `Time Filter (Fast) Proto` endpoint that also returns distance information. Request parameters are even more limited than `Time Filter (Fast) Proto`.
+
+This endpoint is not enabled by default, please [contact us](https://traveltime.com/contact-us) if you wish to obtain access. 
+
+Body attributes:
+* origin: Origin point.
+* destinations: Destination points. Cannot be more than 200,000.
+* transport: Transportation type.
+* travelTime: Time limit;
+* country: Return the results that are within the specified country
+
+```ruby
+origin = {
+  lat: 51.508930,
+  lng: -0.131387,
+}
+
+destinations = [{
+  lat: 51.508824,
+  lng: -0.167093,
+}]
+
+response = client.time_filter_fast_proto_distance(
+  country: 'UK',
+  origin: origin,
+  destinations: destinations,
+  transport: 'driving+ferry',
+  traveltime: 7200
+)
+puts(response.body)
+```
+
+
 ### [Time Filter (Postcode Districts)](https://traveltime.com/docs/api/reference/postcode-district-filter)
 Find districts that have a certain coverage from origin (or to destination) and get statistics about postcodes within such districts.
 Currently only supports United Kingdom.

lib/travel_time/client.rb

@@ -125,6 +125,15 @@ def time_filter_fast_proto(country:, origin:, destinations:, transport:, travelt
       end
     end
 
+    def time_filter_fast_proto_distance(country:, origin:, destinations:, transport:, traveltime:)
+      message = ProtoUtils.make_proto_message(origin, destinations, transport, traveltime, properties: [1])
+      payload = ProtoUtils.encode_proto_message(message)
+      perform_request_proto do
+        proto_connection.post("https://proto-with-distance.api.traveltimeapp.com/api/v2/#{country}/time-filter/fast/#{transport}",
+                              payload)
+      end
+    end
+
     def time_filter_postcodes(departure_searches: nil, arrival_searches: nil)
       payload = {
         departure_searches: departure_searches,

spec/travel_time/client_spec.rb

@@ -142,6 +142,20 @@
       it_behaves_like 'an endpoint method'
     end
 
+    describe '#time_filter_fast_proto_distance' do
+      country = 'uk'
+      transport = 'driving+ferry'
+      subject(:response) do
+        client.time_filter_fast_proto_distance(country: country, origin: {}, destinations: {}, transport: transport,
+                                               traveltime: 0)
+      end
+
+      let(:url) { "https://proto-with-distance.api.traveltimeapp.com/api/v2/#{country}/time-filter/fast/#{transport}" }
+      let(:stub) { stub_request(:post, url) }
+
+      it_behaves_like 'an endpoint method'
+    end
+
     describe '#time_filter_postcodes' do
       subject(:response) { client.time_filter_postcodes(arrival_searches: []) }