I have this payload,

type test_struct struct {          
    Id              string        `json:"id"`                    
    Desc            struct {
        Id         int    `json:"id"`
        Name         int    `json:"name"`
    } `json:"desc"`
}

The problem is that sometimes the value of Desc struct is just NULL, and I will get this error,

http: panic serving 10.130.2.1:60426: runtime error: index out of range [2] with length 1
goroutine 6 [running]:
net/http.(*conn).serve.func1()
.
.
.

There’s no error if Desc have array values but I cannot of course make it without NULL value all the time.

If I do this,

type test_struct struct {          
    Id              string        `json:"id"`                    
    Desc            []interface{} `json:"desc"`
}

I will have this error,

json: cannot unmarshal object into Go struct field test_struct.desc of type []interface {}
http: panic serving 10.4.200.1:45812: runtime error: index out of range [2] with length 1
goroutine 18 [running]:

Thanks!