how to make a request to my .NET Core App from UWP, with Microsoft Account Authentication

I am able to retrieve user's token in UWP with code like this

        string MicrosoftClientID = {ClientID};
        string MicrosoftCallbackURL = "urn:ietf:wg:oauth:2.0:oob";
        string scope = WebUtility.UrlEncode("openid offline_access https://graph.microsoft.com/user.read");
        string MicrosoftURL = "https://login.microsoftonline.com/consumers/oauth2/v2.0/authorize?client_id=" + MicrosoftClientID + "&response_type=code&redirect_uri=" + MicrosoftCallbackURL + "&response_mode=query&scope=" + scope;

        Uri StartUri = new Uri(MicrosoftURL);
        Uri EndUri = new Uri(MicrosoftCallbackURL);

        WebAuthenticationResult WebAuthenticationResult = await WebAuthenticationBroker.AuthenticateAsync(
                                                WebAuthenticationOptions.None,
                                                StartUri,
                                                EndUri);
        if (WebAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
        {
            string code = WebAuthenticationResult.ResponseData.Replace("urn:ietf:wg:oauth:2.0:oob?code=", "");
            string strContent = "client_id=" + MicrosoftClientID + "&scope=" + scope + "&code=" + code + "&redirect_uri=" + MicrosoftCallbackURL + "&grant_type=authorization_code";

            HttpClient httpClient = new HttpClient();
            HttpContent httpContent = new StringContent(strContent);
            httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
            HttpResponseMessage httpResponseMessage = await httpClient.PostAsync("https://login.microsoftonline.com/consumers/oauth2/v2.0/token", httpContent);
            string stringResponse = await httpResponseMessage.Content.ReadAsStringAsync();
        }

but how can i use the token to make a request to API of my .NET Core Web application, which is hosted on azure?

My startup.cs and homecontroller.cs look like below

            app.UseOAuthAuthentication(new OAuthOptions()
            {
                AuthenticationScheme = "Microsoft-AccessToken",
                DisplayName = "MicrosoftAccount-AccessToken",
                ClientId = {CliendID},
                ClientSecret = {ClientSecret},
                CallbackPath = new PathString("/signin-microsoft-token"),
                AuthorizationEndpoint = MicrosoftAccountDefaults.AuthorizationEndpoint,
                TokenEndpoint = MicrosoftAccountDefaults.TokenEndpoint,
                UserInformationEndpoint = MicrosoftAccountDefaults.UserInformationEndpoint,
                Scope = { "https://graph.microsoft.com/user.read" },
                SaveTokens = true,
                Events = new OAuthEvents()
                {
                    OnCreatingTicket = async context =>
                    {
                        var request = new HttpRequestMessage(HttpMethod.Get, context.Options.UserInformationEndpoint);
                        request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", context.AccessToken);
                        request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

                        var response = await context.Backchannel.SendAsync(request, context.HttpContext.RequestAborted);
                        response.EnsureSuccessStatusCode();

                        var user = JObject.Parse(await response.Content.ReadAsStringAsync());

                        var identifier = user.Value<string>("id");
                        if (!string.IsNullOrEmpty(identifier))
                        {
                            context.Identity.AddClaim(new Claim(
                                ClaimTypes.NameIdentifier, identifier,
                                ClaimValueTypes.String, context.Options.ClaimsIssuer));
                        }

                        var userName = user.Value<string>("displayName");
                        if (!string.IsNullOrEmpty(userName))
                        {
                            context.Identity.AddClaim(new Claim(
                                ClaimTypes.Name, userName,
                                ClaimValueTypes.String, context.Options.ClaimsIssuer));
                        }

                        var email = user.Value<string>("userPrincipalName");
                        if (!string.IsNullOrEmpty(email))
                        {
                            context.Identity.AddClaim(new Claim(
                                ClaimTypes.Email, email,
                                ClaimValueTypes.Email, context.Options.ClaimsIssuer));
                        }
                    }
                }
            });

        [Authorize]
        public string GetInfo()
        {
            return "Hello world!";
        }

I have tried these

            httpClient = new HttpClient();
            httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", authenticationModel.AccessToken);
            string apicontent = await httpClient.GetStringAsync("https://{host}.azurewebsites.net/home/GetInfo");

all I got is html of login page

Any help please?