(Objective-C) ZATCA Onboarding Get Compliance CSID

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Demonstrates sending a POST to get a compliance CSID, which is two parts: A binary security token, and a secret.

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

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

// It is assumed you've already generated a CSR.
// Also, you'll need an OTP code, valid for 1 hour, which is generated online in the Fatoora portal.  See 
// https://zatca.gov.sa/ar/E-Invoicing/Introduction/Guidelines/Documents/E-invoicing%20Detailed%20Technical%20Guidelines.pdf

// Manually replace this with the OTP code you interactively obtained in a browser session from the Fatoora portal.
// The OTP code is valid for 1 hour.
NSString *otp = @"123434";

// You should already have a CSR in a file containing something that looks like this:

// -----BEGIN CERTIFICATE REQUEST-----
// MIIB5DCCAYsCAQAwTDELMAkGA1UEBhMCU0ExFTATBgNVBAsMDFJpeWFkIEJyYW5j
// aDEQMA4GA1UECgwHQ29udG9zbzEUMBIGA1UEAwwLRUExMjM0NTY3ODkwVjAQBgcq
// hkjOPQIBBgUrgQQACgNCAAQI6op+6GQ4Gmn9oy0DpGxX0lFtUIvj+4Jtnp0VyEsH
// +ZO7lpgksbRC484R3fAsO0v+Ly24ZIUIOYEIAeJ1f6AooIHfMIHcBgkqhkiG9w0B
// CQ4xgc4wgcswIQYJKwYBBAGCNxQCBBQTElpBVENBLUNvZGUtU2lnbmluZzCBpQYD
// VR0RBIGdMIGapIGXMIGUMTswOQYDVQQEDDIxLVRTVHwyLVRTVHwzLWVkMjJmMWQ4
// LWU2YTItMTExOC05YjU4LWQ5YThmMTFlNDQ1ZjEfMB0GCgmSJomT8ixkAQEMDzMx
// MDEyMjM5MzUwMDAwMzENMAsGA1UEDAwEMTEwMDESMBAGA1UEGgwJTXlBZGRyZXNz
// MREwDwYDVQQPDAhJbmR1c3RyeTAKBggqhkjOPQQDAgNHADBEAiBurm6KdAeHfXzt
// h/jk8xSMBP4TAkkFrg+hWDhfI0/SuAIgJi8ectM7YwBIBCmf0tdFcVTU7GBbvjnK
// xValZCAO39M=
// -----END CERTIFICATE REQUEST-----

CkoPem *pem = [[CkoPem alloc] init];
BOOL success = [pem LoadPemFile: @"c:/aaworkarea/zatca/onboarding/taxpayer.csr" password: @""];
if (success == NO) {
    NSLog(@"%@",pem.LastErrorText);
    return;
}

// Get the base64 from the CSR in a single line.
CkoStringBuilder *sbCsrBase64 = [[CkoStringBuilder alloc] init];
[sbCsrBase64 Append: [pem GetEncodedItem: @"csr" itemSubType: @"" encoding: @"base64" index: [NSNumber numberWithInt: 0]]];
int numReplaced = [[sbCsrBase64 Replace: @"\r" replacement: @""] intValue];
numReplaced = [[sbCsrBase64 Replace: @"\n" replacement: @""] intValue];
NSString *csrBase64 = [sbCsrBase64 GetAsString];
NSLog(@"%@",csrBase64);

CkoJsonObject *json = [[CkoJsonObject alloc] init];
json.EmitCompact = NO;
[json UpdateSb: @"csr" sb: sbCsrBase64];

CkoHttp *http = [[CkoHttp alloc] init];
http.Accept = @"application/json";
[http SetRequestHeader: @"OTP" value: otp];
[http SetRequestHeader: @"Accept-Version" value: @"V2"];
CkoHttpResponse *resp = [http PostJson3: @"https://gw-apic-gov.gazt.gov.sa/e-invoicing/core/compliance" contentType: @"application/json" json: json];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

if ([resp.StatusCode intValue] != 200) {
    NSLog(@"%@",resp.BodyStr);
    NSLog(@"%@%d",@"response status code = ",[resp.StatusCode intValue]);
    NSLog(@"%@",@"Failed");

    return;
}

CkoJsonObject *jsonResp = [[CkoJsonObject alloc] init];
[resp GetBodyJson: jsonResp];

jsonResp.EmitCompact = NO;
NSLog(@"%@",@"JSON response:");
NSLog(@"%@",[jsonResp Emit]);