Objective-C

Example: Http.CloseAllConnections method

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Demonstrates how to call the CloseAllConnections method. Objective-C

#import <CkoHttp.h>
#import <NSString.h>
#import <CkoStringBuilder.h>

BOOL success = NO;

CkoHttp *http = [[CkoHttp alloc] init];

//  Demonstrate 
NSString *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" value: @"MSFT"];
[http SetUrlVar: @"api_key" value: @"1234567890ABCDEF"];

CkoStringBuilder *sbJson = [[CkoStringBuilder alloc] init];
success = [http QuickGetSb: url sbContent: sbJson];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

int statusCode = [http.LastStatus intValue];
NSLog(@"%@",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 == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@",@"Success.");