go - json.Unmarshal nested object into string or []byte

Question

I'm trying to Unmarshal some json so that a nested object does not get parsed but just treated as a string or []byte.

So I want to get the following:

{
    "id"  : 15,
    "foo" : { "foo": 123, "bar": "baz" }
}

Unmarshaled into:

type Bar struct {
    ID  int64  `json:"id"`
    Foo []byte `json:"foo"`
}

I get the following error:

json: cannot unmarshal object into Go value of type []uint8

playground demo

Answer 1

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