Upload attachment with SharePoint list item using REST API in .Net Core project

Hello Everyone,

I have created .net core project and implemented GET/POST request with SharePoint list with reference of below link.

https://www.c-sharpcorner.com/article/consume-sharepoint-online-csom-rest-api-with-dotnet-core-3-1/

Now, I need to upload an attachment with SharePoint list item using REST API in .Net Core project.

Can anyone help me with the same?

Thanks