C

Example: Http.CloseAllConnections method

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Demonstrates how to call the CloseAllConnections method. C

#include <C_CkHttp.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttp http;
    const char *url;
    HCkStringBuilder sbJson;
    int statusCode;

    success = FALSE;

    http = CkHttp_Create();

    //  Demonstrate 
    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"
    CkHttp_SetUrlVar(http,"symbol","MSFT");
    CkHttp_SetUrlVar(http,"api_key","1234567890ABCDEF");

    sbJson = CkStringBuilder_Create();
    success = CkHttp_QuickGetSb(http,url,sbJson);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbJson);
        return;
    }

    statusCode = CkHttp_getLastStatus(http);
    printf("%s\n",CkHttp_lastResponseHeader(http));

    //  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 = CkHttp_CloseAllConnections(http);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbJson);
        return;
    }

    printf("Success.\n");


    CkHttp_Dispose(http);
    CkStringBuilder_Dispose(sbJson);

    }