Connect to Dynamics CRM Online using .Net Core SDK

Microsoft has annouced .Net Core SDK which can be used to Connect to CRM from .Net Core application.

Some of the limitations of current version of SDK

1. This package is an ALPHA release. – Use at your own risk.
2. This package is intended to work with .net full framework 4.6.2, 4.7.2 and 4.8, .net core 3.0 and 3.1
3. We have not stabilized on NameSpace or Class names with this package as of yet and things will change as we move though the preview.
4. General Documentation is the same as CrmServiceClient and can be found here:
   https://docs.microsoft.com/en-us/dotnet/api/microsoft.xrm.tooling.connector.crmserviceclient?view=dynamics-xrmtooling-ce-9
5. Connection String Docs can be found here:
   https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/xrm-tooling/use-connection-strings-xrm-tooling-connect
   Note: that only OAuth, Certificate, ClientSecret Authentication types are supported at this time.

C# Code to connect to CRM Dynamics Online using .Net Core SDK

Install below nuget package on your .Net core project

Install-Package Microsoft.Powerplatform.Cds.Client -Version 0.2.14-Alpha

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
var cdsClient = new CdsServiceClient("AuthType = ClientSecret; ClientId=ed841ef3-a44a-43f4-b097-9f6005437c8b; Url = https://CRMOrg.crm.dynamics.com; ClientSecret=****;");
if (cdsClient.IsReady)
{
Console.WriteLine("Hello, connected to CDS using .NET Core");
//cdsClient.CallerId = Guid.Parse("bc1809ae-552f-48d0-8f2d-75bf4f6f927b");
Entity newAccount = new Entity("account");
newAccount["name"] = "Test .NET Core";
cdsClient.Create(newAccount);

QueryExpression query = new QueryExpression("account");
query.ColumnSet = new ColumnSet(true);
var response = cdsClient.RetrieveMultiple(query);
foreach (var item in response.Entities)
{
Console.WriteLine($"Account: {item.GetAttributeValue("name")} [{item.GetAttributeValue("ownerid").Name}]");
}
}
else
{
Console.WriteLine("Failed to connect to CDS using .NET Core :(");
}
Console.ReadKey();

Note:-

Currently impersonation with callerId is not working

//cdsClient.CallerId = Guid.Parse(“bc1809ae-552f-48d0-8f2d-75bf4f6f927b”);

Use below code to impersonate web service call

cdsClient.CallerAADObjectId= Guid.Parse(“bc1809ae-552f-48d0-8f2d-75bf4f6f7659”);

Hope this helps!