Working with SharePoint Online Hub sites using CSOM

With SharePoint Online Hub sites launched for Targeted release tenants, here is some quick code I put together to work with them using CSOM:

1) Register a Hub site, Connect a site to a Hub site, Disconnect a site from a Hub site and Unregister a Hub site:

	static void Main(string[] args)
	{
	string adminSiteUrl = "https://tenant-admin.sharepoint.com/";
	string hubSiteUrl = "https://tenant.sharepoint.com/sites/MyHubSite";
	string siteUrl = "https://tenant.sharepoint.com/sites/Demo";
	var clientContext = GetClientContext(adminSiteUrl);
	var tenant = new Tenant(clientContext);
	tenant.RegisterHubSite(hubSiteUrl);
	tenant.ConnectSiteToHubSite(siteUrl, hubSiteUrl);
	tenant.DisconnectSiteFromHubSite(siteUrl);
	tenant.UnregisterHubSite(hubSiteUrl);
	clientContext.ExecuteQuery();
	}
	private static ClientContext GetClientContext(string siteUrl)
	{
	//Part of OfficeDevPnP.Core
	var authManager = new AuthenticationManager();
	//https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs
	return authManager.GetAppOnlyAuthenticatedContext(siteUrl, "<client-id>", "<client-secret>");
	}

view raw CSOM.HubSites.cs hosted with ❤ by GitHub

2) Grant and Revoke specific users rights to connect sites to a Hub site:

When a Hub site is registered, it is public by default. Any user is able to connect their site to the hub site. If you want only a specific set of users to be able to connect their site to the Hub site, you can grant "Join" rights to these users:

	static void Main(string[] args)
	{
	string adminSiteUrl = "https://tenant-admin.sharepoint.com/";
	string hubSiteUrl = "https://tenant.sharepoint.com/sites/hub";
	var clientContext = GetClientContext(adminSiteUrl);
	//Only these users or groups will have rights to join a site to the hub
	var hubManagers = new string[]{ "user1@tenant.onmicrosoft.com",
	"user2@tenant.onmicrosoft.com"};
	var tenant = new Tenant(clientContext);
	tenant.GrantHubSiteRights(hubSiteUrl, hubManagers, SPOHubSiteUserRights.Join);
	//To revoke rights for users or groups
	//tenant.RevokeHubSiteRights(hubSiteUrl, hubManagers);
	clientContext.ExecuteQuery();
	}
	private static ClientContext GetClientContext(string siteUrl)
	{
	//Part of OfficeDevPnP.Core
	var authManager = new AuthenticationManager();
	//https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs
	return authManager.GetAppOnlyAuthenticatedContext(siteUrl, "<client-id>", "<client-secret>");
	}

view raw CSOM.HubSites.Rights.cs hosted with ❤ by GitHub

Hope this helps!