Array of bytes

[nirenrc]

Hello

I am trying to set array of bytes using "Set" or "SetRaw"; unfortunately it returns non array type value for specified path e.g.

1. Using Set API
   ba := []byte{128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 31, 32, 140}
   value, _ := sjson.Set(``, "byte-array", ba)
   fmt.Println(value)

Returns:
{"byte-array":"\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u001f \ufffd"}

2. Using SetRaw API:
   value, _ := sjson.SetRaw(``, "byte-array", string(ba))
   fmt.Println(value)

Returns:
{"byte-array":"\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u001f \ufffd"}

appears that in either case it converts byte array into string. Unfortunately, while retrieving values using gjson returns different values

ret := gjson.Get(value, "byte-array")
fmt.Println("ret: ", ret)

Result:
ret: ������������ �

How to store byte array as pure byte array? like
{"byte-array":[127,126,125,124]}
changing type from "byte" to "uint32" or "uint16" returns result like above.

Thanking You

Niren

[Josh Baker]

Hi,

SJSON stores byte[] as a JSON string.

To store the data as an array of numbers you'll need to generate that array manually.

For example:

ba := []byte{128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 31, 32, 140}
var arr []byte
arr = append(arr, '[')
for i, c := range ba {
	if i > 0 {
		arr = append(arr, ',')
	}
	arr = strconv.AppendUint(arr, uint64(c), 10)
}
arr = append(arr, ']')
value, _ := sjson.SetRaw(``, "byte-array", string(arr))
fmt.Println(value)

Output:

{"byte-array":[128,129,130,131,132,133,134,135,136,137,138,139,31,32,140]}

[nirenrc]

Hello
ok, can be simplified by fmt.Sprint

ba := []byte{128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 31, 32, 140}
s := strings.Replace(fmt.Sprint(ba), " ", ",", -1)
value, _ := sjson.SetRaw(``, "byte-array", s)
fmt.Println(value)

Storing []byte as string is ok, it just gjson returns incorrect data. I did not try converting back to "[]byte".

Thanking You

Niren

[Josh Baker]

You're welcome. I'm closing this issue, but feel free to reopen if needed.