(Objective-C) Example: Http.SetOAuthRsaKey method

Demonstrates the SetOAuthRsaKey method.

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#import <CkoPfx.h>
#import <CkoPrivateKey.h>
#import <CkoHttp.h>
#import <CkoHttpResponse.h>

BOOL success = NO;

CkoPfx *pfx = [[CkoPfx alloc] init];
success = [pfx LoadPfxFile: @"qa_data/pfx/MCD_Sandbox_chilkat_iccp_API_Keys/chilkat_iccp-sandbox.p12" password: @"keystorepassword"];
if (success == NO) {
    NSLog(@"%@",pfx.LastErrorText);
    return;
}

CkoPrivateKey *privKey = [[CkoPrivateKey alloc] init];
success = [pfx PrivateKeyAt: [NSNumber numberWithInt: 0] privKey: privKey];
if (success == NO) {
    NSLog(@"%@",pfx.LastErrorText);
    return;
}

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

// Use OAuth1.0a authentication.
http.OAuth1 = YES;

// Use your own consumer key (this is not a valid consumer key)
http.OAuthConsumerKey = @"123abc";

http.OAuthSigMethod = @"RSA-SHA256";

success = [http SetOAuthRsaKey: privKey];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

// Tell Chilkat to automatically calculate and add the oauth_body_hash field when sending the request.
http.OAuthBodyHash = YES;

// Send this request to an endpoint at chilkatsoft.com.  The purpose of this example is to show
// how the OAuth1.0a Authorization header is computed and sent by Chilkat.
// The chilkatsoft.com site itself doesn't do OAuth1.  It's just ignoring the Authorization header.
CkoHttpResponse *resp = [[CkoHttpResponse alloc] init];
success = [http HttpStr: @"POST" url: @"https://chilkatsoft.com/echo_request_body.asp" bodyStr: @"<notUsed>123</notUsed>" charset: @"utf-8" contentType: @"application/xml" response: resp];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

// Examine the request header we just sent..
NSLog(@"%@",http.LastHeader);

// Sample output:

// POST /echo_request_body.asp HTTP/1.1
// Host: chilkatsoft.com
// Accept: */*
// Accept-Encoding: gzip
// Content-Type: application/xml
// Content-Length: 22
// Authorization: OAuth oauth_consumer_key="123abc", oauth_nonce="A2E91C3B53E0BD7FBF71F441336679E358DDCEEE", oauth_body_hash="a5kPTsDwUwmBjC0voNlAAvM6YoaRS5X7sTO49jl3/h8=", oauth_timestamp="1756324932", oauth_signature_method="RSA-SHA256", oauth_version="1.0", oauth_signature="*****"