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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto3";

package google.protobuf;

import "google/protobuf/source_context.proto";
import "google/protobuf/type.proto";

option java_multiple_files = true;
option java_outer_classname = "ApiProto";
option java_package = "com.google.protobuf";
option objc_class_prefix = "GPB";


// Api is a light-weight descriptor for a protocol buffer service.
message Api {
  // The fully qualified name of this api, including package name
  // followed by the api's simple name.
  string name = 1;

  // The methods of this api, in unspecified order.
  repeated Method methods = 2;

  // Any metadata attached to the API.
  repeated Option options = 3;

  // A version string for this api. If specified, must have the form
  // `major-version.minor-version`, as in `1.10`. If the minor version
  // is omitted, it defaults to zero. If the entire version field is
  // empty, the major version is derived from the package name, as
  // outlined below. If the field is not empty, the version in the
  // package name will be verified to be consistent with what is
  // provided here.
  //
  // The versioning schema uses [semantic
  // versioning](http://semver.org) where the major version number
  // indicates a breaking change and the minor version an additive,
  // non-breaking change. Both version numbers are signals to users
  // what to expect from different versions, and should be carefully
  // chosen based on the product plan.
  //
  // The major version is also reflected in the package name of the
  // API, which must end in `v<major-version>`, as in
  // `google.feature.v1`. For major versions 0 and 1, the suffix can
  // be omitted. Zero major versions must only be used for
  // experimental, none-GA apis.
  //
  // See also: [design doc](http://go/api-versioning).
  //
  //
  string version = 4;

  // Source context for the protocol buffer service represented by this
  // message.
  SourceContext source_context = 5;
}

// Method represents a method of an api.
message Method {
  // The simple name of this method.
  string name = 1;

  // A URL of the input message type.
  string request_type_url = 2;

  // If true, the request is streamed.
  bool request_streaming = 3;

  // The URL of the output message type.
  string response_type_url = 4;

  // If true, the response is streamed.
  bool response_streaming = 5;

  // Any metadata attached to the method.
  repeated Option options = 6;
}