Visual Basic 6.0

Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method. Visual Basic 6.0

Dim success As Long
success = 0

success = 0

Dim targetPath As String
targetPath = "c:/temp/qa_output/download.txt"

Dim http As New ChilkatHttp
http.KeepResponseBody = 1

' Assume the target file in the local filesystem does not yet exist.
success = http.DownloadAppend("https://chilkatsoft.com/testData/helloWorld.txt",targetPath)
Dim statusCode As Long
statusCode = http.LastStatus
If (statusCode = 0) Then
    ' Unable to either send the request or get the response.
    Debug.Print http.LastErrorText
    Exit Sub
End If

' Should be 200.
Debug.Print "Response status code: " & statusCode

' Examine the contents of the file.
Dim sb As New ChilkatStringBuilder
success = sb.LoadFile(targetPath,"utf-8")
Debug.Print sb.GetAsString()

' Output: 
' Response status code: 200
' Hello World!

' Download another text file and append to the target file.
success = http.DownloadAppend("https://chilkatsoft.com/testData/this_is_a_test.txt",targetPath)
statusCode = http.LastStatus
If (statusCode = 0) Then
    ' Unable to either send the request or get the response.
    Debug.Print http.LastErrorText
    Exit Sub
End If

' Should be 200.
Debug.Print "Response status code: " & statusCode

' Examine the contents of the file.
success = sb.LoadFile(targetPath,"utf-8")
Debug.Print sb.GetAsString()

' Output:
' Response status code: 200
' Hello World!This is a Test.

' Delete the local target file.
Dim fac As New CkFileAccess
success = fac.FileDelete(targetPath)

' Try to download a file that does not exist:
success = http.DownloadAppend("https://chilkatsoft.com/testData/does_not_exist.txt",targetPath)
statusCode = http.LastStatus
If (statusCode = 0) Then
    ' Unable to either send the request or get the response.
    Debug.Print http.LastErrorText
Else
    ' We got a response, and we already know it wasn't a 200 success response.
    ' It should be a 404 not found.
    Debug.Print "Response status code: " & statusCode
    ' Examine the response body.
    Debug.Print "Response body:"
    Debug.Print http.LastResponseBody
End If