XeroConfiguration xconfig = new XeroConfiguration();
    
	xconfig.ClientId = "yourClientId";
	xconfig.ClientSecret = "yourClientSecret";
	xconfig.CallbackUri = new Uri("https://localhost:5001") //default for standard webapi template
	xconfig.Scope = "openid profile email files accounting.transactions accounting.contacts offline_access";
    
	var client = new XeroClient(xconfig);
	
	//build login link
	Console.WriteLine(client.BuildLoginUri());
	
	//In the example app, I've used the config via appsettings so it becomes:
	var client = new Xero.NetStandard.OAuth2.Client.XeroClient(config.Value, httpClientFactory);

	XeroConfiguration xconfig = new XeroConfiguration(); 
    
	xconfig.ClientId = "yourClientId";
	xconfig.ClientSecret = "yourClientSecret";
	xconfig.CallbackUri = new Uri("https://localhost:5001") //default for standard webapi template
	xconfig.Scope = "openid profile email files accounting.transactions accounting.contacts offline_access";
	
	var client = new XeroClient(xconfig);
	
	//before getting the access token please check that the state matches
	await client.RequestAccessTokenAsync(code, "yourState");
    
	//from here you will need to access your Xero Tenants
	List<Tenant> tenants = await client.GetConnections();
    
	// you will now have the tenant id and access token
	foreach (Tenant tenant in tenants)
	{
		// do something with your tenant and access token
		//client.AccessToken;
		//tenant.TenantId;
	}

	xeroClient.RefreshTokenAsync(xeroToken); //use the latest token you have

	//Here is a full example using a webapi
	[HttpGet]
	public async Task<ActionResult> Index(string code, string state)
	{
		var client = new XeroClient(config.Value, httpClientFactory);
		var xeroToken = (XeroOAuth2Token)await client.RequestXeroTokenAsync(code);
		TokenUtilities.StoreToken(Environment.MachineName, xeroToken);
		return RedirectToAction("Invoices", "Accounting");
	}

	var AccountingApi = new AccountingApi();
	var response = await AccountingApi.GetInvoicesAsync(accessToken, xeroTenantId);
	
	Console.WriteLine(AccountingApi.GetInvoices().ToJson();)