C++

Example: Http.CloseAllConnections method

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Demonstrates how to call the CloseAllConnections method. C++

#include <CkHttp.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkHttp http;

    //  Demonstrate 
    const char *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"
    http.SetUrlVar("symbol","MSFT");
    http.SetUrlVar("api_key","1234567890ABCDEF");

    CkStringBuilder sbJson;
    success = http.QuickGetSb(url,sbJson);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    int statusCode = http.get_LastStatus();
    std::cout << http.lastResponseHeader() << "\r\n";

    //  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) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Success." << "\r\n";
    }