(Swift) Example: Http.CloseAllConnections method

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func chilkatTest() {
    var success: Bool = false

    let http = CkoHttp()!

    // Demonstrate 
    var url: 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", value: "MSFT")
    http.setUrlVar("api_key", value: "1234567890ABCDEF")

    let sbJson = CkoStringBuilder()!
    success = http.quickGetSb(url, sbContent: sbJson)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    var statusCode: Int = http.lastStatus.intValue
    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 == false {
        print("\(http.lastErrorText!)")
        return
    }

    print("Success.")

}