将gorm.Model字段集成到protobuf定义中

Question

I am trying to figure out how to integrate the gorm.Model fields (deleted_at, create_at, id, etc) into my proto3 definitions. However, I can't a datetime type for proto3. I tried looking for documentation on how to serialize the gorm fields to strings (since proto3 handles strings) but I have not found anything.

Has anyone been able to successfully use the gorm model fields in their proto definitions? I'm using go-micro's plugin to generate *pb.go files.

Here's my current message definition which doesn't work. It seems like empty strings are being stored in the database for deleted_at since when querying for deleted_at is null the postgres database returns nothing.

message DatabaseConfig {
    string address = 1;
    int32 port = 2;
    string databaseName = 3;
    string username = 4;
    string password = 5;
    string databaseType = 6;
    string quertStatement = 7;
    int32 id = 8;
    string createdAt = 9;
    string updatedAt = 10;
    string deletedAt = 11;
}

UPDATE: I've updated my proto def to the following but gorm still isn't properly using the Id, CreatedAt, UpdatedAt, and DeletedAt fields

syntax = "proto3";

package go.micro.srv.importer;

import "google/protobuf/timestamp.proto";
import "github.com/gogo/protobuf/gogoproto/gogo.proto";

service ImporterService {
    rpc CreateDatabaseConfig(DatabaseConfig) returns (Response) {}
    rpc RetrieveDatabaseConfig(GetRequest) returns (Response) {}
    rpc UpdateDatabaseConfig(DatabaseConfig) returns (Response) {}
    rpc DeleteDatabaseConfig(DatabaseConfig) returns (Response) {}
}


message GetRequest {}


message DatabaseConfig {
    string address = 1;
    int32 port = 2;
    string databaseName = 3;
    string username = 4;
    string password = 5;
    string databaseType = 6;
    string quertStatement = 7;
    int32 id = 8;
    google.protobuf.Timestamp createdAt = 9 [(gogoproto.stdtime) = true];
    google.protobuf.Timestamp updatedAt = 10 [(gogoproto.stdtime) = true];
    google.protobuf.Timestamp deletedAt = 11 [(gogoproto.stdtime) = true];
}


message Response {
    bool created = 1;
    DatabaseConfig database_config = 2;

    repeated DatabaseConfig databaseConfigs = 3;
}