For example, I want to write a method like this:
func parseData(rawData []json.RawMessage) []interface{} {
var migrations []interface{}
for _, migration := range rawData {
// this is an custom struct
command := UserCommand{}
json.Unmarshal(migration, &command)
migrations = append(migrations, command)
}
return migrations
}
The problem of this code is: If I don't want to parse UserCommand
but any other such as ProductCommand
, I must write the same code, only different at line: command := UserCommand{}
. So my question is: how can I generic this code.
I have tried this solution but it doesn't work:
func parseData(rawData []json.RawMessage, class interface{}) []interface{} {
var migrations []interface{}
for _, migration := range rawData {
command := class
json.Unmarshal(migration, &command)
migrations = append(migrations, command)
}
return migrations
}
// then I call this method
parseData(data, UserCommand{})
But it doesn't work. It return array of map[string]interface{}
How can I fix this.
Edit:
Here is some my defined struct
type UserCommand struct {
User string
Info string
}
type ProductCommand struct {
Name string
Quanlity int
}