如何使用C＃MSGraph将日历事件添加到Outlook 365

Question

我正在使用的当前应用程序实质上是为Microsoft Outlook 365创建包装器应用程序。我与MSGraph的合作不多，并且一直很难从“表单窗口”中将事件设置为登录用户的日历，或者在获取令牌后真正做任何事情。 这是我当前正在尝试使用的代码。

    PublicClientApplication clientApp;
    GraphServiceClient graphClient;
    string token;
    string userEmail;


    public async void Start()
    {
        await GetDataAsync();
        return;
    }

    async Task GetDataAsync()
    {
        clientApp = new PublicClientApplication(ConfigurationManager.AppSettings["ClientId"].ToString());

        graphClient = new GraphServiceClient(
                    "https://graph.microsoft.com/v1.0",
                    new DelegateAuthenticationProvider(
                        async (requestMessage) =>
                        {
                            requestMessage.Headers.Authorization = new AuthenticationHeaderValue("bearer", await GetTokenAsync(clientApp));
                        }));

        var currentUser = await graphClient.Me.Request().GetAsync().ConfigureAwait(false);
        userEmail = currentUser.Mail;
        return;
    }


    async Task<string> GetTokenAsync(PublicClientApplication clientApp)
    {
        //need to pass scope of activity to get token
        string[] Scopes = { "User.Read", "Calendars.ReadWrite", "Calendars.ReadWrite.Shared"};
        token = null;

        AuthenticationResult authResult = await clientApp.AcquireTokenAsync(Scopes).ConfigureAwait(false);
        token = authResult.AccessToken;

        return token;
    }


    public async void SetAppointment(string subject, DateTime start, DateTime end, List<Attendee> attendies)
    {
        try
        {
            using (HttpClient c = new HttpClient())
            {
                String requestURI = "https://graph.microsoft.com/v1.0/users/" + userEmail + "/calendar/events.";


                ToOutlookCalendar toOutlookCalendar = new ToOutlookCalendar();


                TimeZone Timezone = TimeZone.CurrentTimeZone;
                toOutlookCalendar.Subject = subject;
                toOutlookCalendar.Start = start;
                toOutlookCalendar.End = end;
                toOutlookCalendar.Attendees = attendies;


                HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(toOutlookCalendar), Encoding.UTF8, "application/json");

                HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, requestURI);
                request.Content = httpContent;
                //Authentication token
                request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);

                var response = await c.SendAsync(request);
                var responseString = await response.Content.ReadAsStringAsync();
            }
        }
        catch (Exception e)
        {
            MessageBox.Show(e.Message);
        }
    }

UPDATE

好的，感谢下面的Seiya Su，我设法使这段代码大部分都起作用了，但是，每当我向日历中添加一个事件时，都需要登录。

    public async void SetAppointment(string Subject, string Body, string Start, string End, string Location, List<string> attendees) 
    {
        var myEvent = new Microsoft.Graph.Event();
        myEvent.Subject = Subject;
        myEvent.Body = new ItemBody() { ContentType = BodyType.Text, Content = Body };
        myEvent.Start = new DateTimeTimeZone() { DateTime = Start, TimeZone = "" };
        myEvent.End = new DateTimeTimeZone() { DateTime = End, TimeZone = "" };
        myEvent.Location = new Location() { DisplayName = Location };

        var appointment = await graphClient.Me.Calendar.Events.Request().AddAsync(myEvent);          

我构建了一个测试方法来解决这个问题，并尝试了以下操作：

    public async void graphTesting()
    { 
        var myEvent = new Microsoft.Graph.Event();
        myEvent.Subject = "Test";
        myEvent.Body = new ItemBody() { ContentType = BodyType.Text, Content = "This is test." };
        myEvent.Start = new DateTimeTimeZone() { DateTime = "2018-10-3T12:00:00", TimeZone = "Pacific Standard Time" };
        myEvent.End = new DateTimeTimeZone() { DateTime = "2018-10-3T13:00:00", TimeZone = "Pacific Standard Time" };
        myEvent.Location = new Location() { DisplayName = "conf room 1" };
        //myEvent.Attendees = attendies;                   


        var myEvent2 = new Microsoft.Graph.Event();
        myEvent2.Subject = "Test";
        myEvent2.Body = new ItemBody() { ContentType = BodyType.Text, Content = "This is test." };
        myEvent2.Start = new DateTimeTimeZone() { DateTime = "2018-10-4T12:00:00", TimeZone = "Pacific Standard Time" };
        myEvent2.End = new DateTimeTimeZone() { DateTime = "2018-10-4T13:00:00", TimeZone = "Pacific Standard Time" };
        myEvent2.Location = new Location() { DisplayName = "conf room 1" };
        //myEvent.Attendees = attendies;                   



        // Create the event.
        var user = graphClient.Me.Calendar.Events.Request();
        await user.Header("bearer", token).AddAsync(myEvent);
        await user.Header("bearer", token).AddAsync(myEvent2);

    }

但是它仍然无法正常工作，要求我为添加的每个事件登录。 我同意用户必须登录，只要他们只登录一次，是否有人知道解决此问题的方法？ 我目前的想法是将令牌传递给请求，但这似乎无济于事。

Answer 1

1您在代码中使用了错误的EndPoint。

2由于您可以使用MS图形库，因此这里有一个更有效的工作代码。您可以重新封装它。

var myEvent = new Microsoft.Graph.Event();
myEvent.Subject = "Test";
myEvent.Body = new ItemBody() { ContentType = BodyType.Text, Content = "This is test." };
myEvent.Start = new DateTimeTimeZone() { DateTime = "2018-9-29T12:00:00", TimeZone = "Pacific Standard Time" };
myEvent.End = new DateTimeTimeZone() { DateTime = "2018-9-29T13:00:00", TimeZone = "Pacific Standard Time" };
myEvent.Location = new Location() { DisplayName = "conf room 1" }; 
 //myEvent.Attendees = attendies;                   

 // Create the event. 
 //graphClient.Me.Calendar.Events.Request().AddAsync(myEvent)
 var mySyncdEvent = await graphClient.Users["you mail"].Calendar.Events.Request()
.AddAsync(myEvent);

更新2018-10-5

对于您的更新代码，我们不需要每次都传递令牌。 我不确定您的From Windows是WPF还是Winform之类的。代码和身份验证流对于MVC项目是否应该工作得更好。 只需尝试将脱机或此类范围传递到您的GraphScope设置文件。

持续。 不要总是将遇到的新问题更新为现有问题。 尽管它们是相关的，但不再是一个问题。 虽然旧问题已经解决，但最好还是再提出一个新问题。 否则它们仍然是一个问题。