嵌套地图返回json数组[]

How can I create a nested JSON array? Is there any other easy way to do it?

I tried this:

var m1 = make(map[string]interface{})
m1 = append(tickets, ptotal)                      //error is here
i.Data["json"] = m1
i.ServeJSON()

but it shows this error:

cannot use append(tickets, ptotal) (type []interface {}) as type map[string]interface {} in assignment

I can do this, but it's not nested at all:

// some := append(tickets, map[string]int64{"totalpage": ptotal})

I want this JSON:

[
  {tickets
     name:value,
  },
],
[
  {
   totalpage: 10
  }
]

I want like Playground of mine

var tickets []interface{}
var ptotal int64
tickets, ptotal, err := models.GetAllTicket(query, fields, sortby, order, offset, limit)
if err != nil {
    // bulabula
}
i.Data["json"] = append(tickets, map[string]int64{"totalpage": ptotal})

try this:

var data = map[string]map[string]string{
    "ticket": map[string]string{},
    "totalpage": map[string]string{},
    "c": map[string]string{},
}

data["ticket"]["w"] = "vrniairvnai"
data["totalpage"]["w"] = "ten"
fmt.Println(data)

var data2 = make(map[string]interface{})
data2["data"] = data
data2["int"] = 10
fmt.Println(data2)