(Objective-C) Dynamics CRM Oauth2 Client Credentials

Get an OAuth2 access token for Dynamics CRM using client credentials.

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

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

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

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

// Pass the client ID/secret using Basic HTTP authentication.
http.Login = @"CLIENT_ID";
http.Password = @"CLIENT_SECRET";
http.BasicAuth = YES;

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
[req AddParam: @"client_secret" value: @"CLIENT_SECRET"];
[req AddParam: @"client_id" value: @"CLIENT_ID"];
[req AddParam: @"scope" value: @"https://yourdynamicsdomain.crm3.dynamics.com/.default"];
[req AddParam: @"grant_type" value: @"client_credentials"];

// Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
NSString *url = @"https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token";
CkoHttpResponse *resp = [http PostUrlEncoded: url req: req];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

int statusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"Response status code = ",statusCode);

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json Load: resp.BodyStr];

json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);

if (statusCode == 200) {
    [json WriteFile: @"qa_data/tokens/dynamicsCrmClientCredentialsToken.json"];
    NSLog(@"%@",@"Success.");
}
else {
    NSLog(@"%@",@"Failed.");
}