B4X

Download Image (JPG, GIF, etc.) to Base64

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Demonstrates how to download an image, or any type of file, to get the data in base64 encoding format. B4X

Dim success As Boolean = False

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim http As ChilkatHttp
http.Initialize("http")
http.KeepResponseBody = True

Dim bd As ChilkatBinData
bd.Initialize

success = http.DownloadBd("https://www.chilkatsoft.com/images/starfish.jpg", bd)
Dim statusCode As Int = http.LastStatus
If success = False Then
    If statusCode = 0 Then
        '  Unable to either send the request or get the response.
        Log(http.LastErrorText)
    Else
        '  We got a response, but the status code was not in the 200s
        Log("Response status code: " & statusCode)
        '  Examine the response body.
        Log("Response body:")
        Log(http.LastResponseBody)
    End If

    Log("Download failed.")

Else
    Log("Download success, response status = " & statusCode)

    Dim base64_image_data As String = bd.GetEncoded("base64")
    Log("image data in base64 format:")
    Log(base64_image_data)
End If