B4X Requires Chilkat v11.0.0+
Upload a Blob using a Container’s Shared Access Signature

Shows how to upload an Azure blob using a URL with a shared access signature.
Chilkat B4X Downloads

B4X
Dim success As Boolean = False

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

'  To upload a file we're simply sending a PUT with the content of the data.  For example:

'  PUT https://myaccount.blob.core.windows.net/pictures/photo.jpg?sv=2015-02-21&st=2015-07-01T08%3a49Z&se=2015-07-02T08%3a49Z&  sr=c&sp=w&si=YWJjZGVmZw%3d%3d&sig=Rcp6gQRfV7WDlURdVTqCa%2bqEArnfJxDgE%2bKH3TCChIs%3d HTTP/1.1  
'  Host: myaccount.blob.core.windows.net  
'    
'  Content-Length: 12  
'    
'  Hello World.  

'  Upload a string to a helloWorld.txt file in the "mycontainer" container, in the "chilkat" account.
Dim url As String = "https://chilkat.blob.core.windows.net/mycontainer/helloWorld.txt?sv=2021-06-08&ss=bfqt&srt=sco&sp=rwdlacupiyx&se=2023-02-12T21:30:53Z&st=2023-02-12T13:30:53Z&spr=https&sig=HB8CoZiD7EJD1rQNIVnLl%2Bq7kyLcOCnSXR14TadBv6s%3D"

Dim http As ChilkatHttp
http.Initialize("http")

http.SetRequestHeader("x-ms-blob-type", "BlockBlob")

Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpStr("PUT", url, "Hello World.", "utf-8", "text/plain", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Dim statusCode As Int = resp.StatusCode
Log("response status code: " & statusCode)
Log("response status text: " & resp.StatusText)

If statusCode = 201 Then
    Log("Success.")
Else
    Log("Failed.")
End If


'  -------------------------------------------------------------------------------------------------
'  Upload from a file...

'  Upload a binar file to a penguins.jpg file in the "mycontainer" container, in the "chilkat" account.
Dim url2 As String = "https://chilkat.blob.core.windows.net/mycontainer/penguins.jpg?sv=2021-06-08&ss=bfqt&srt=sco&sp=rwdlacupiyx&se=2023-02-12T21:30:53Z&st=2023-02-12T13:30:53Z&spr=https&sig=HB8CoZiD7EJD1rQNIVnLl%2Bq7kyLcOCnSXR14TadBv6s%3D"

http.ClearHeaders
http.SetRequestHeader("x-ms-blob-type", "BlockBlob")

'  Upload a JPG file
success = http.HttpFile("PUT", url2, "c:/qa_data/jpg/penguins.jpg", "image/jpeg", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


statusCode = resp.StatusCode
Log("response status code: " & statusCode)
Log("response status text: " & resp.StatusText)

If statusCode = 201 Then
    Log("Success.")
Else
    Log("Failed.")
End If