message.proto

package message;

import "gogo.proto";

option (gogoproto.sizer_all) = true;
option (gogoproto.marshaler_all) = true;
option (gogoproto.unmarshaler_all) = true;

message Header {
  enum HmacHashFunction {
    MD5  = 0;
    SHA1 = 1;
  }
  required uint32           message_length      = 1; // length in bytes

  optional HmacHashFunction hmac_hash_function  = 3 [default = MD5];
  optional string           hmac_signer         = 4;
  optional uint32           hmac_key_version    = 5;
  optional bytes            hmac                = 6;
}

message Field {
  enum ValueType {
    STRING  = 0;
    BYTES   = 1;
    INTEGER = 2;
    DOUBLE  = 3;
    BOOL    = 4;
  }
  required string       name            = 1;
  optional ValueType    value_type      = 2 [default = STRING];
  optional string       representation  = 3;
  repeated string       value_string    = 4;
  repeated bytes        value_bytes     = 5;
  repeated int64        value_integer   = 6 [packed=true];
  repeated double       value_double    = 7 [packed=true];
  repeated bool         value_bool      = 8 [packed=true];
}
  
message Message {
  required bytes    uuid        = 1;
  required int64    timestamp   = 2; // nanoseconds since UNIX epoch
  optional string   type        = 3;
  optional string   logger      = 4;
  optional int32    severity    = 5 [default = 7];
  optional string   payload     = 6;
  optional string   env_version = 7;
  optional int32    pid         = 8;
  optional string   hostname    = 9;
  repeated Field    fields      = 10;
}