VB.NET

Examine HTTP Response Status Code and Text

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Demonstrates how to examine the HTTP response status code and text when using the REST object. VB.NET

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 New Chilkat.Rest

' We're going to check https://authenticationtest.com/HTTPAuth/
Dim bTls As Boolean = True
Dim port As Integer = 443
Dim bAutoReconnect As Boolean = True
success = rest.Connect("authenticationtest.com",port,bTls,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' Send a GET request
Dim responseText As String = rest.FullRequestNoBody("GET","/HTTPAuth/")
If (rest.LastMethodSuccess <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' The start line of an HTTP response, called the status line, contains the following information:
' 
'     The protocol version, usually HTTP/1.1.
'     A status code, indicating success or failure of the request. Common status codes are 200, 404, or 302
'     A status text. A brief, purely informational, textual description of the status code to help a human understand the HTTP message.
' 
' A typical status line looks like: HTTP/1.1 404 Not Found.

' The ResponseStatusCode property contains the integer response code:
Debug.WriteLine("Response status code = " & rest.ResponseStatusCode)

' The ResponseStatusText property contains the text (if any) that follows the status code on the status line.
Debug.WriteLine("Response status text = " & rest.ResponseStatusText)

' In this case, the sample output is:
' 
' Response status code = 401
' Response status text = Unauthorized