我可以在golang中的json中将用户定义的值作为数据类型吗

Question

I am creating a json response in golang.I have a question that i am able to generate a json such as :

{
  "Name" : "Country",
  "Value" : "abc"
}

The value of name and value can change based on the user and the struct I am using is like:

type xAxis struct {
  Name string,
  Value string
}

I want my json to look like this:

{
   "Country" : "abc"
}

Is it possible to create the json like this?

Answer 1

you can override the way Go's json package marshals a struct by writing a custom MarshalJSON function:

type xAxis struct {
    Name  string
    Value string
}

func (a xAxis) MarshalJSON() ([]byte, error) {
    return json.Marshal(map[string]interface{}{a.Name: a.Value})
}

to try it: http://play.golang.org/p/G_E4IpNYIz