B4X

Explaining the Rest ClearResponseBodyStream Method

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The ClearResponseBodyStream method would be needed if your applicaiton called SetResponseBodyStream to send the response to a stream for one request, but then wants to subsequently do something else. The application must call ClearResponseBodyStream to no longer send responses to the stream. 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 rest As ChilkatRest
rest.Initialize("rest")

'  Connect to the web server
Dim bTls As Boolean = True
Dim port As Int = 443
Dim bAutoReconnect As Boolean = True
success = rest.Connect("www.chilkatsoft.com", port, bTls, bAutoReconnect)
If success <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  Setup a file stream for the download
Dim fileStream As ChilkatStream
fileStream.Initialize("fileStream")
fileStream.SinkFile = "qa_output/starfish.jpg"

'  Indicate that the call to FullRequestNoBody should send the response body
'  to fileStream if the response status code is 200.
'  If a non-success response status code is received, then nothing
'  is streamed to the output file and the error response is returned by FullRequestNoBody.
Dim expectedStatus As Int = 200
rest.SetResponseBodyStream(expectedStatus, True, fileStream)

Dim responseStr As String = rest.FullRequestNoBody("GET", "/images/starfish.jpg")
If rest.LastMethodSuccess = False Then
    '  Examine the request/response to see what happened.
    Log("response status code = " & rest.ResponseStatusCode)
    Log("response status text = " & rest.ResponseStatusText)
    Log("response header: " & rest.ResponseHeader)
    Log("response body (if any): " & responseStr)
    Log("---")
    Log("LastRequestStartLine: " & rest.LastRequestStartLine)
    Log("LastRequestHeader: " & rest.LastRequestHeader)
    Return
End If


Log("downloaded starfish.jpg")

'  Clear the response body stream previously set in the call to SetResponseBodyStream.
rest.ClearResponseBodyStream

'  Download something else, but this time send the response body to bd.
Dim bd As ChilkatBinData
bd.Initialize
success = rest.FullRequestNoBodyBd("GET", "/images/penguins.jpg", bd)
If success = False Then
    '  Examine the request/response to see what happened.
    Log("response status code = " & rest.ResponseStatusCode)
    Log("response status text = " & rest.ResponseStatusText)
    Log("response header: " & rest.ResponseHeader)
    Log("response body (if any): " & bd.GetString("utf-8"))
    Log("---")
    Log("LastRequestStartLine: " & rest.LastRequestStartLine)
    Log("LastRequestHeader: " & rest.LastRequestHeader)
    Return
End If


'  Save the contents of bd to a file.
success = bd.WriteFile("qa_output/penguins.jpg")

Log("Success: " & success)