Crm Minds

Connecting to Dynamics 365 Environment From C# Application

In this blog post, we’ll securely connect to a Dynamics 365 environment using ClientID.

Before we start

Register an application in Azure Active Directory (Azure AD) to obtain a ClientID (Application ID). These credentials will be used for authenticating your application.

	public void Connect()
	{
	string connString = $"AuthType=OAuth;" +
	$"Username={your@username};" + // Your Azure AD username
	$"Password={yourpassword};" + // Your Azure AD password
	$"Url=https://myenv.crm4.dynamics.com/;" + // Replace with your Dynamics 365 environment URL
	$"AppId={your_app_id_in_azure_ad};" + // Your Azure AD Application ClientID
	$"RedirectUri=app://{your_app_id_in_azure_ad};" + // Your Azure AD Application Redirect URI
	$"LoginPrompt=Never";

	if (string.IsNullOrWhiteSpace(connString))
	{
	Console.WriteLine("No Connection string entered!");
	return;
	}
	var client = new CrmServiceClient(connString);
	var orgService = (IOrganizationService)client;
	}

view raw Connect.cs hosted with ❤ by GitHub

AuthType is set to OAuth to indicate OAuth authentication.
Replace {your@username} and {yourpassword} with your credentials.
Make sure to replace the Url with the correct URL of your Dynamics 365 environment.
{your_app_id_in_azure_ad} should be your Azure AD Application’s ClientID.
The RedirectUri should also be updated with the Redirect URI registered in your Azure AD Application

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