On callback return map[string]interface{} empty

[mmavka]

Hello. Thanks for the library I can't sort out the callback for On (subscription events). In server. I received empty map[string]interface. Can you help me this problem, maybe. thanks

I sending test message from Postman as JSON. Setting v4 or v3

Message

``` { "key": "value" } ```

Use code map

``` server.On("event", callback.Wrap{ Parameters: []ser.Serializable{ser.MapParam}, Func: func() interface{} { return func(msg map[string]interface{}) error { fmt.Println(msg) return nil } }, }) ```

I getting empty map. map[]

if I set StrParam

Use code string

``` server.On("event", callback.Wrap{ Parameters: []ser.Serializable{ser. StrParam}, Func: func() interface{} { return func(msg string) error { fmt.Println(msg) return nil } }, }) ```

then I getting string "map[key:value]"

[njones]

Hi mmavka,

Thanks for using the library! The callback.Wrap struct is supposed to be used for simple things, so it was only set to use reflection on scalar values, but a map seemed logical and easy to add. So I added it, and updated the examples with it. Also I updated examples on how to add a map as a custom callback, that's how you can do complex objects. You can see the examples linked here.

[njones]

The updated examples link is here.

[mmavka]

Thanks