(Objective-C) Transition from Http.PostJson3 to Http.HttpJson

Provides instructions for replacing deprecated PostJson3 method calls with HttpJson.

Note: This example requires Chilkat v11.0.0 or greater.

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#import <CkoHttp.h>
#import <NSString.h>
#import <CkoJsonObject.h>
#import <CkoHttpResponse.h>

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

NSString *url = @"https://example.com/something";
NSString *contentType = @"application/json";
CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json LoadFile: @"C:/temp/requestBody.json"];

// ------------------------------------------------------------------------
// The PostJson3 method is deprecated:

CkoHttpResponse *responseObj = [http PostJson3: url contentType: contentType json: json];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

// ...
// ...

// ------------------------------------------------------------------------
// Do the equivalent using HttpJson.
// Your application creates a new, empty HttpResponse object which is passed 
// in the last argument and filled upon success.

CkoHttpResponse *responseOut = [[CkoHttpResponse alloc] init];
BOOL success = [http HttpJson: @"POST" url: url json: json contentType: contentType response: responseOut];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}