Recommended patterns for consistent field key names

[jstangroome]

I've discovered its easy to end up with the same Field logged with different variations on a key name in different parts of a code base and this complicates log querying. E.g.

var dbname = "mydb"
logger.Info("connected to database", zap.String("database", dbname))
logger.Debug("database query completed", zap.String("db", dbname), zap.Duration("timing", t))
logger.Error("query failed", zap.String("dbName", dbname), zap.Error(err))

What patterns have people found helps keep key name consistent?

E.g. Use constants?

const DatabaseFieldKey = "db_name"
logger.Info("connected to database", zap.String(DatabaseFieldKey, dbname))

Or e.g. use custom types?

type DatabaseName string
func (x *DatabaseName) ZapField() zap.Field {
  return zap.String("db_name", string(x))
}
var dbname = DatabaseName("mydb")
logger.Info("connected to database", dbname.ZapField())

Or custom types with MarshalLogObject and zap.Inline? Or something else?

What do you prefer and why?

[Mita23456]

Yep