(Objective-C) SharePoint Get Site ID

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

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

BOOL success = NO;

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

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

// Provide the information needed for Chilkat to automatically fetch the OAuth2.0 
// access token as needed.
CkoJsonObject *jsonOAuthCC = [[CkoJsonObject alloc] init];

// --------------------------------------------------------------------------------------------------------
// You'll need to have registered an app in Azure beforehand.
// See How to Create SharePoint App Registration for OAuth 2.0 Client Credentials
// --------------------------------------------------------------------------------------------------------

// Use the values from your App Registration in Azure.
[jsonOAuthCC UpdateString: @"client_id" value: @"CLIENT_ID"];
[jsonOAuthCC UpdateString: @"client_secret" value: @"SECRET_VALUE"];

// You'll always use this scope for client credentials, because the allowed actions
// are determined by the App Permissions defined when you registered the app in Azure.
[jsonOAuthCC UpdateString: @"scope" value: @"https://graph.microsoft.com/.default"];

// The token endpoint includes your tenant ID. 
[jsonOAuthCC UpdateString: @"token_endpoint" value: @"https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token"];

// Provide the OAuth2 information. Chilkat will use this information to automatically fetch the OAuth2 access token as needed,
http.AuthToken = [jsonOAuthCC Emit];

// Get information about the SharePoint site named "test"
CkoStringBuilder *sbJson = [[CkoStringBuilder alloc] init];
[http SetUrlVar: @"sharepoint_hostname" value: @"example.sharepoint.com"];
[http SetUrlVar: @"site_name" value: @"test"];
success = [http QuickGetSb: @"https://graph.microsoft.com/v1.0/sites/{$sharepoint_hostname}:/sites/{$site_name}" sbContent: sbJson];
if (success == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

int statusCode = [http.LastStatus intValue];

NSLog(@"%@%d",@"Response status code = ",statusCode);

if (statusCode != 200) {
    NSLog(@"%@",[sbJson GetAsString]);
    NSLog(@"%@",@"Failed.");
    return;
}

CkoJsonObject *jsonResp = [[CkoJsonObject alloc] init];
[jsonResp LoadSb: sbJson];
jsonResp.EmitCompact = NO;

NSLog(@"%@",[jsonResp Emit]);
NSLog(@"%@",@"");
NSLog(@"%@%@",@"ID: ",[jsonResp StringOf: @"id"]);
NSLog(@"%@",@"Success.");

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON