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B4X

Example: Http.CloseAllConnections method

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Demonstrates how to call the CloseAllConnections method.

Chilkat B4X Downloads

B4X
Dim success As Boolean = False

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

'  Demonstrate 
Dim url As String = "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"
http.SetUrlVar("symbol", "MSFT")
http.SetUrlVar("api_key", "1234567890ABCDEF")

Dim sbJson As ChilkatStringBuilder
sbJson.Initialize
success = http.QuickGetSb(url, sbJson)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Dim statusCode As Int = http.LastStatus
Log(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 = False Then
    Log(http.LastErrorText)
    Return
End If


Log("Success.")