QtProtobufWellKnownTypes

Google Protobuf Well-Known types library for QtProtobuf.

Google Protobuf Well-Known types library for QtProtobuf.

QtProtobufWellKnownTypes contains follwing Protobuf Well-Known types:

• Any
• Timestamp
• Struct
• Value
• ListValue
• SourceContext
• DoubleValue
• FloatValue
• Int64Value
• UInt64Value
• Int32Value
• UInt32Value
• BoolValue
• StringValue
• BytesValue
• Type
• Field
• Enum
• EnumValue
• Option
• Empty
• FieldMask
• Api
• Method
• Mixin
• Duration

To use well-known type in your project you may include corresponding google .proto file in your interface:

syntax = "proto3";
package somepackage;
 
import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";
 
message AnimationMessage {
    uint32 animationId = 1;
    google.protobuf.Timestamp startTime = 2;
    google.protobuf.Timestamp endTime = 3;
}
 
service AnimationService {
    rpc startAnimation(AnimationMessage) returns (google.protobuf.Empty) {}
}

It's also possible to use some of generated well-known types directly, simply include corresponding header:

#include <google/protobuf/any.qpb.h>
...
    google::protobuf::Any someAnyVariable;
    someAnyVariable.setType_url("http://somedomain.org/someTypeDescription");
    someAnyVariable.setValue(data);
...

In both scenarious you also need to link QtProtobuf WellKnownTypes library by adding following lines to CMakeLists.txt for your target.

target_link_libraries(YourTargetName PRIVATE QtProtobuf::ProtobufWellKnownTypes)