(Visual Basic 6.0) Example: Http.CloseAllConnections method

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Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim success As Long
success = 0

Dim http As New ChilkatHttp

' Demonstrate 
Dim url As String
url = "https://finnhub.io/api/v1/quote?symbol={$symbol}&token={$api_key}"

' When the request is sent, the {$symbol} is replaced with "MSFT"
' and the {$api_key} is replaced with "1234567890ABCDEF"
success = http.SetUrlVar("symbol","MSFT")
success = http.SetUrlVar("api_key","1234567890ABCDEF")

Dim sbJson As New ChilkatStringBuilder
success = http.QuickGetSb(url,sbJson)
If (success = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Dim statusCode As Long
statusCode = http.LastStatus
Debug.Print http.LastResponseHeader

' The response header contains this:

' Date: Tue, 19 Aug 2025 12:18:56 GMT
' Content-Type: application/json; charset=utf-8
' Transfer-Encoding: chunked
' Connection: keep-alive
' Content-Encoding: gzip

' The "Connection: keep-alive" header ensures the server keeps the connection open for subsequent requests.
' If the server responds with a "Connection: close" header, it indicates the connection will be closed after the response. 
' Consequently, Chilkat will also close the connection, requiring a new one to be established for any subsequent requests to the same server.

' If your application uses the same HTTP object instance to send requests to a different server, a new connection will be established with that server.
' Existing connections remain open, with Chilkat maintaining up to 10 open connections. 
' If all 10 connections are in use, Chilkat will close the least recently used connection to connect to a new server.

' Your application can explicitly close all open connections like this:
success = http.CloseAllConnections()
If (success = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Debug.Print "Success."