Protobuf: import urls for well known types are undocumented

[stub42]

https://developers.google.com/protocol-buffers/docs/reference/google.protobuf lists all the well known types, but the URLs needed to import them into your .proto file are a secret. The only one I can find any reference to is Any, import "google/protobuf/any.proto". Others like Empty or any of the wrappers are undocumented.

[al31n]

FYI for those who can't seem to find the well known types in the docs. All wrappers (ie. int32Value) are under wrappers.proto.

import "google/protobuf/any.proto";
import "google/protobuf/api.proto";
import "google/protobuf/duration.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/field_mask.proto";
import "google/protobuf/source_context.proto";
import "google/protobuf/struct.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/type.proto";
import "google/protobuf/wrappers.proto";

Found a sample in a unit test:

https://github.com/google/protobuf/blob/c44ca26fe89ed8a81d3ee475a2ccc1797141dbce/src/google/protobuf/unittest_well_known_types.proto

[otto-dev]

Still not fixed? I'm trying to import ListValue and can't find any reference of the import.

[fyaretskiy]

Just ran into the problem @otto-dev

import "google/protobuf/struct.proto";

google.protobuf.ListValue foo = 1;

seems to work

from google.protobuf import struct_pb2
struct_pb2.ListValue().add_list().extend([1,2,3])