Revel中使用mgo for Mongo的REST API-如何自动添加响应参数（例如状态和数据）？

I'm using this implementation - https://github.com/sadhanandh/revelbasic - to build a customized REST API endpoint in Golang.

For any input parameter like, say, /brands, I have the following code -

Model:

func GetBrands(s *mgo.Session) []Brand {
    var results []Brand
    CollectionBrand(s).Find(bson.M{}).All(&results)
    return results
}

Controller:

func (c Book) Brands() revel.Result {
    b := models.GetBrands(c.MongoSession)
    return c.RenderJson(b)
}

The problem is that this gives a purely json response of the data with no server status codes. I mean, the responses are like this -

[
{"data1"}, {"data2"}
]

Whereas what is actually expected is more like-

{
"apiversion": 123,
"status": "success",
"data": [{"data1"}, {"data2"}],
}

along with more information about the response such as a server status code, etc.

I can customize the response in my controller code to add these but shouldn't I be able to configure revel to do that automatically for every response?