Microsoft Graph API is a powerful tool that allows developers to access a wide range of Microsoft 365 services, including Outlook and Calendar. In this blog post, we will walk you through the steps to create a calendar event using the Microsoft Graph API and C#. This integration can be incredibly useful for automating event scheduling and managing calendars within your applications.
Prerequisites
Before we dive into the code, you'll need the following:
- Microsoft 365 Account: Ensure you have access to a Microsoft 365 account and have the necessary permissions to create calendar events.
- Azure App Registration: Create an Azure App Registration to obtain the required client ID and client secret for authentication.
- Visual Studio or Visual Studio Code: Use an IDE such as Visual Studio or Visual Studio Code with the necessary C# development tools installed.
- Microsoft.Graph NuGet Package: Install the Microsoft.Graph NuGet package in your project to interact with Microsoft Graph API.
Step 1: Set Up Your Azure App Registratio
Navigate to the Azure portal and create a new App Registration and Note down the Application (client) ID, Tenant ID and generate a client secret. This information will be needed for authentication.
Step 2: Install Microsoft.Graph NuGet Package
In your C# project, install the Microsoft.Graph NuGet package using the package manager console or NuGet package manager in Visual Studio:
Step 3: Create GraphServiceClient
var clientSecretCredential = new ClientSecretCredential(tenantid, clientid, secret);
var _graphServiceClient = new GraphServiceClient(clientSecretCredential);
Step 4: Create a Calendar Event
Now that we have obtained the graphServiceClient, we can use it to create a calendar event using the Microsoft Graph API.
var newEvent = new Event
{
Subject = actionPlan.EventTitle,
Start = new DateTimeTimeZone
{
DateTime = actionPlan.EventStartTime.Value.ToString("o"),
TimeZone = TimeZoneInfo.Utc.Id
},
End = new DateTimeTimeZone
{
DateTime = actionPlan.EventEndTime.Value.ToString("o"),
TimeZone = TimeZoneInfo.Utc.Id
},
Location = new Location
{
DisplayName = actionPlan.EventLocation
},
Body = new ItemBody
{
Content = notificationBody,
ContentType = BodyType.Html
},
Attendees = attendeeList,
ResponseRequested = true
};
var createdEvent = await graphServiceClient.Users[currentUser].Events.Request().AddAsync(newEvent);
Adjust the event details and date/time as needed for your specific use case.
Conclusion
You have now learned how to create a calendar event using the Microsoft Graph API and C#. Integrating Microsoft Graph API into your applications opens up a world of possibilities for automating and enhancing calendar management within your organization. Happy coding!
