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Objective-C

HTTP POST JSON (application/json)

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Demonstrates how to send a JSON POST using the application/json content-type.

Chilkat Objective-C Downloads

Objective-C
#import <CkoHttpRequest.h>
#import <CkoHttp.h>
#import <NSString.h>
#import <CkoHttpResponse.h>

BOOL success = NO;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

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

//  If any custom headers need to be included with the POST, add them
//  by calling SetRequestHeader

//  Note: An application should never explicitly set the Content-Length header.
//  The Content-Length is automatically computed and added by Chilkat.

//  Here are some examples of custom headers.  

//  Perhaps your particular app needs some sort of custom-computed Authorization header...
[http SetRequestHeader: @"Authorization" value: @"my-custom-computed-auth-value"];

//  Another custom header for some hypothetical app:
[http SetRequestHeader: @"X-Pass-Timestamp" value: @"my-custom-computed-timestamp-value"];

//  The following "Accept" header may be set, but it really isn't necessary:
[http SetRequestHeader: @"Accept" value: @"application/json"];

NSString *jsonText = @"{ some JSON text ... }";

//  To use SSL/TLS, simply use "https://" in the URL.

CkoHttpResponse *resp = [[CkoHttpResponse alloc] init];
success = [http HttpStr: @"POST" url: @"http://www.someserver.com/someJsonEndpoint" bodyStr: jsonText charset: @"utf-8" contentType: @"application/json" response: resp];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

//  Display the JSON response.
NSLog(@"%@",resp.BodyStr);