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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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126 lines
4.4 KiB
126 lines
4.4 KiB
// Copyright 2015, Google Inc. |
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// All rights reserved. |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Google Inc. nor the names of its |
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// contributors may be used to endorse or promote products derived from |
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// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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syntax = "proto3"; |
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option java_multiple_files = true; |
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option java_package = "io.grpc.examples.routeguide"; |
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option java_outer_classname = "RouteGuideProto"; |
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option objc_class_prefix = "RTG"; |
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package routeguide; |
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// Interface exported by the server. |
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service RouteGuide { |
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// A simple RPC. |
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// |
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// Obtains the feature at a given position. |
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// |
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// A feature with an empty name is returned if there's no feature at the given |
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// position. |
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rpc GetFeature(Point) returns (Feature) {} |
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// A server-to-client streaming RPC. |
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// |
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// Obtains the Features available within the given Rectangle. Results are |
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// streamed rather than returned at once (e.g. in a response message with a |
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// repeated field), as the rectangle may cover a large area and contain a |
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// huge number of features. |
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rpc ListFeatures(Rectangle) returns (stream Feature) {} |
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// A client-to-server streaming RPC. |
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// |
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// Accepts a stream of Points on a route being traversed, returning a |
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// RouteSummary when traversal is completed. |
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rpc RecordRoute(stream Point) returns (RouteSummary) {} |
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// A Bidirectional streaming RPC. |
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// |
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// Accepts a stream of RouteNotes sent while a route is being traversed, |
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// while receiving other RouteNotes (e.g. from other users). |
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rpc RouteChat(stream RouteNote) returns (stream RouteNote) {} |
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} |
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// Points are represented as latitude-longitude pairs in the E7 representation |
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// (degrees multiplied by 10**7 and rounded to the nearest integer). |
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// Latitudes should be in the range +/- 90 degrees and longitude should be in |
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// the range +/- 180 degrees (inclusive). |
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message Point { |
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int32 latitude = 1; |
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int32 longitude = 2; |
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} |
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// A latitude-longitude rectangle, represented as two diagonally opposite |
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// points "lo" and "hi". |
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message Rectangle { |
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// One corner of the rectangle. |
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Point lo = 1; |
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// The other corner of the rectangle. |
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Point hi = 2; |
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} |
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// A feature names something at a given point. |
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// |
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// If a feature could not be named, the name is empty. |
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message Feature { |
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// The name of the feature. |
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string name = 1; |
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// The point where the feature is detected. |
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Point location = 2; |
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} |
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// A RouteNote is a message sent while at a given point. |
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message RouteNote { |
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// The location from which the message is sent. |
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Point location = 1; |
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// The message to be sent. |
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string message = 2; |
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} |
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// A RouteSummary is received in response to a RecordRoute rpc. |
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// |
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// It contains the number of individual points received, the number of |
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// detected features, and the total distance covered as the cumulative sum of |
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// the distance between each point. |
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message RouteSummary { |
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// The number of points received. |
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int32 point_count = 1; |
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// The number of known features passed while traversing the route. |
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int32 feature_count = 2; |
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// The distance covered in metres. |
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int32 distance = 3; |
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// The duration of the traversal in seconds. |
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int32 elapsed_time = 4; |
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}
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