元帅/非元帅体现

Question

I created map[string]interface{} and i want to pass multiple types through the map between 2 reset services.

every time i marshal i get empty map in the field that should contain reflect.Type.

ServiceType:map[]

is it even possible?

code for testing: (the KeyValuePair will represent a single value of the map) and the MessageService can be replaced with any type of course

data := GenericHandlers.KeyValuePair{Key:"ServiceType",Value:reflect.TypeOf(MessageService.MessageService{})}
Json , _ := json.Marshal(data)
resKvp := GenericHandlers.KeyValuePair{}
err := json.Unmarshal(Json,&resKvp)
if(err != nil){
     log.Println(err.Error())
}
fmt.Println(resKvp)


type KeyValuePair struct{
        Key string
        Value interface{}
}

Answer 1

Short answer: No, it's not possible.

Slightly longer answer: Since relfect.Type , as returned by TypeOf , is an interface type implemented by the unexported type rtype , none of whose fields are exported and whose method set does not contain the MarshalJSON/UnmarshalJSON methods, you cannot marshal or unmarshal a reflect.Type value as is.