Pack and unpack an Any — proto_unpack

proto_unpack_any() decodes the message a google.protobuf.Any packs, as proto_decode() decodes any message. The type is the part of type_url after its last /, and must be in the pool. proto_pack_any() is the inverse: it encodes a message with proto_encode() and names its type, giving a value to set an Any field to.

Usage

proto_unpack_any(x, pool, ...)

proto_pack_any(x, type, pool, prefix = "type.googleapis.com/", ...)

Arguments

x: For proto_unpack_any(), an Any as proto_decode() returns it: a list of type_url and value (the packed bytes). For proto_pack_any(), the message, as proto_encode() takes it.
pool: A pool from proto_pool() holding the packed type.
...: Passed to proto_decode() or proto_encode().
type: The message type's full name.
prefix: The type_url before the type name, ending in /. Protobuf's JSON mapping and most runtimes expect the default.

Value

proto_unpack_any(): the packed message, as proto_decode() returns it. proto_pack_any(): an Any, a list of type_url and value.

Examples

pool <- proto_pool()
any <- proto_pack_any(42L, "google.protobuf.Int32Value", pool)
any$type_url
#> [1] "type.googleapis.com/google.protobuf.Int32Value"
proto_unpack_any(any, pool)
#> [1] 42