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": ,
"lastName":
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"
Anycontains 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. 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 := anypb.New(foo) if err != nil { ... } ... foo := &pb.Foo{} if err := any.UnmarshalTo(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,
"lastName":
If the embedded message type is well-known and has a custom JSON
representation, that representation will be embedded adding a field
Anyvalue uses the regular representation of the deserialized, embedded message, with an additional field@typewhich 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":valuewhich holds the custom JSON in addition to the@typefield. Example (for message [google.protobuf.Duration][]): "@type": "type.googleapis.com/google.protobuf.Duration", "value": "1.212s"