Android Code Snippet Cloud Vision post image

Hello,

After 4 hours searching i figure it out how to post an image to Cloud Vision API in order to check if content is safe:

Private job As HttpJob

        Private googlekey As String = "YOUR API KEY"

'Encode image to Base64 
        Dim img () As Byte
        img=Bit.InputStreamToBytes(File.OpenInput(File.DirAssets, "10554.jpg"))
        Dim su As StringUtils
        Dim encoded As String
        encoded = su.EncodeBase64(img)

'Post data
        Private data As String = $"{
  "requests": [
    {
      "image": {
        "content": "${encoded}"
      },
      "features": [
        {
          "type": "SAFE_SEARCH_DETECTION"
        }
      ]
    }
  ]
}"$

        job.Initialize("ocr",Me)
        job.PostString("https://vision.googleapis.com/v1/images:annotate?key=" & googlekey, data)
        job.GetRequest.SetContentType("application/json")
 
        Wait For (job) JobDone(job As HttpJob)
        If job.Success Then
            'Log(job.GetString)
            Dim parser As JSONParser
            parser.Initialize(job.GetString)
            Dim root As Map = parser.NextObject
            Dim responses As List = root.Get("responses")
            For Each colresponses As Map In responses
                Dim safeSearchAnnotation As Map = colresponses.Get("safeSearchAnnotation")
                Dim spoof As String = safeSearchAnnotation.Get("spoof")
                Dim racy As String = safeSearchAnnotation.Get("racy")
                Dim medical As String = safeSearchAnnotation.Get("medical")
                Dim adult As String = safeSearchAnnotation.Get("adult")
                Dim violence As String = safeSearchAnnotation.Get("violence")
                Log(violence)
            Next
        Else
            Log(job.ErrorMessage)
        End If