// 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; option csharp_namespace = "Google.Protobuf.WellKnownTypes"; option go_package = "github.com/golang/protobuf/ptypes/any"; option java_package = "com.google.protobuf"; option java_outer_classname = "AnyProto"; option java_multiple_files = true; option objc_class_prefix = "GPB"; // `Any` contains an arbitrary serialized protocol buffer message along with a // URL that describes the type of the serialized message. // // Protobuf library provides support to pack/unpack Any values in the form // of utility functions or additional generated methods of the Any type. // // Example 1: Pack and unpack a message in C++. // // Foo foo = ...; // Any any; // any.PackFrom(foo); // ... // if (any.UnpackTo(&foo)) { // ... // } // // Example 2: Pack and unpack a message in Java. // // Foo foo = ...; // Any any = Any.pack(foo); // ... // if (any.is(Foo.class)) { // foo = any.unpack(Foo.class); // } // // Example 3: Pack and unpack a message in Python. // // foo = Foo(...) // any = Any() // any.Pack(foo) // ... // if any.Is(Foo.DESCRIPTOR): // any.Unpack(foo) // ... // // Example 4: Pack and unpack a message in Go // // foo := &pb.Foo{...} // any, err := ptypes.MarshalAny(foo) // ... // foo := &pb.Foo{} // if err := ptypes.UnmarshalAny(any, foo); err != nil { // ... // } // // The pack methods provided by protobuf library will by default use // 'type.googleapis.com/full.type.name' as the type URL and the unpack // methods only use the fully qualified type name after the last '/' // in the type URL, for example "foo.bar.com/x/y.z" will yield type // name "y.z". // // // JSON // ==== // The JSON representation of an `Any` value uses the regular // representation of the deserialized, embedded message, with an // additional field `@type` which contains the type URL. Example: // // package google.profile; // message Person { // string first_name = 1; // string last_name = 2; // } // // { // "@type": "type.googleapis.com/google.profile.Person", // "firstName": <string>, // "lastName": <string> // } // // If the embedded message type is well-known and has a custom JSON // representation, that representation will be embedded adding a field // `value` which holds the custom JSON in addition to the `@type` // field. Example (for message [google.protobuf.Duration][]): // // { // "@type": "type.googleapis.com/google.protobuf.Duration", // "value": "1.212s" // } // message Any { // A URL/resource name that uniquely identifies the type of the serialized // protocol buffer message. The last segment of the URL's path must represent // the fully qualified name of the type (as in // `path/google.protobuf.Duration`). The name should be in a canonical form // (e.g., leading "." is not accepted). // // In practice, teams usually precompile into the binary all types that they // expect it to use in the context of Any. However, for URLs which use the // scheme `http`, `https`, or no scheme, one can optionally set up a type // server that maps type URLs to message definitions as follows: // // * If no scheme is provided, `https` is assumed. // * An HTTP GET on the URL must yield a [google.protobuf.Type][] // value in binary format, or produce an error. // * Applications are allowed to cache lookup results based on the // URL, or have them precompiled into a binary to avoid any // lookup. Therefore, binary compatibility needs to be preserved // on changes to types. (Use versioned type names to manage // breaking changes.) // // Note: this functionality is not currently available in the official // protobuf release, and it is not used for type URLs beginning with // type.googleapis.com. // // Schemes other than `http`, `https` (or the empty scheme) might be // used with implementation specific semantics. // string type_url = 1; // Must be a valid serialized protocol buffer of the above specified type. bytes value = 2; }