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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 csharp_namespace = "Google.Protobuf.WellKnownTypes";
option java_package = "com.google.protobuf";
option java_outer_classname = "ApiProto";
option java_multiple_files = true;
option objc_class_prefix = "GPB";
option go_package = "google.golang.org/protobuf/types/known/apipb";
// Api is a light-weight descriptor for an API Interface.
//
// Interfaces are also described as "protocol buffer services" in some contexts,
// such as by the "service" keyword in a .proto file, but they are different
// from API Services, which represent a concrete implementation of an interface
// as opposed to simply a description of methods and bindings. They are also
// sometimes simply referred to as "APIs" in other contexts, such as the name of
// this message itself. See https://cloud.google.com/apis/design/glossary for
// detailed terminology.
message Api {
// The fully qualified name of this interface, including package name
// followed by the interface's simple name.
string name = 1;
// The methods of this interface, in unspecified order.
repeated Method methods = 2;
// Any metadata attached to the interface.
repeated Option options = 3;
// A version string for this interface. 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
// interface, which must end in `v`, 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, non-GA interfaces.
//
//
string version = 4;
// Source context for the protocol buffer service represented by this
// message.
SourceContext source_context = 5;
// Included interfaces. See [Mixin][].
repeated Mixin mixins = 6;
// The source syntax of the service.
Syntax syntax = 7;
}
// Method represents a method of an API interface.
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;
// The source syntax of this method.
Syntax syntax = 7;
}
// Declares an API Interface to be included in this interface. The including
// interface must redeclare all the methods from the included interface, but
// documentation and options are inherited as follows:
//
// - If after comment and whitespace stripping, the documentation
// string of the redeclared method is empty, it will be inherited
// from the original method.
//
// - Each annotation belonging to the service config (http,
// visibility) which is not set in the redeclared method will be
// inherited.
//
// - If an http annotation is inherited, the path pattern will be
// modified as follows. Any version prefix will be replaced by the
// version of the including interface plus the [root][] path if
// specified.
//
// Example of a simple mixin:
//
// package google.acl.v1;
// service AccessControl {
// // Get the underlying ACL object.
// rpc GetAcl(GetAclRequest) returns (Acl) {
// option (google.api.http).get = "/v1/{resource=**}:getAcl";
// }
// }
//
// package google.storage.v2;
// service Storage {
// rpc GetAcl(GetAclRequest) returns (Acl);
//
// // Get a data record.
// rpc GetData(GetDataRequest) returns (Data) {
// option (google.api.http).get = "/v2/{resource=**}";
// }
// }
//
// Example of a mixin configuration:
//
// apis:
// - name: google.storage.v2.Storage
// mixins:
// - name: google.acl.v1.AccessControl
//
// The mixin construct implies that all methods in `AccessControl` are
// also declared with same name and request/response types in
// `Storage`. A documentation generator or annotation processor will
// see the effective `Storage.GetAcl` method after inheriting
// documentation and annotations as follows:
//
// service Storage {
// // Get the underlying ACL object.
// rpc GetAcl(GetAclRequest) returns (Acl) {
// option (google.api.http).get = "/v2/{resource=**}:getAcl";
// }
// ...
// }
//
// Note how the version in the path pattern changed from `v1` to `v2`.
//
// If the `root` field in the mixin is specified, it should be a
// relative path under which inherited HTTP paths are placed. Example:
//
// apis:
// - name: google.storage.v2.Storage
// mixins:
// - name: google.acl.v1.AccessControl
// root: acls
//
// This implies the following inherited HTTP annotation:
//
// service Storage {
// // Get the underlying ACL object.
// rpc GetAcl(GetAclRequest) returns (Acl) {
// option (google.api.http).get = "/v2/acls/{resource=**}:getAcl";
// }
// ...
// }
message Mixin {
// The fully qualified name of the interface which is included.
string name = 1;
// If non-empty specifies a path under which inherited HTTP paths
// are rooted.
string root = 2;
}