/// <summary>
/// Creates a new thread in the conversation flow of a target Office 365 Group
/// </summary>
/// <param name="groupId">The ID of the target Office 365 Group</param>
public static void SendMessageToGroupConversation(String groupId, String accessToken = null)
{
var conversation = new Conversation
{
Topic = "Let's manage this Business Project!",
Threads = new List <ConversationThread>(
new ConversationThread[] {
new ConversationThread
{
Topic = "I've just created this Business Project",
Posts = new List <ConversationThreadPost>(
new ConversationThreadPost[]
{
new ConversationThreadPost
{
Body = new ItemBody
{
Content = "<h1>Welcome to this Business Project</h1>",
Type = BodyType.Html,
},
}
})
}
})
};
MicrosoftGraphHelper.MakePostRequest(
String.Format("{0}groups/{1}/conversations",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri, groupId),
conversation, "application/json", accessToken);
}
public static void SendMessageToGroupConversation(String groupId, Conversation conversation, String accessToken = null)
{
String jsonResponse = MicrosoftGraphHelper.MakePostRequestForString(
String.Format("{0}groups/{1}/conversations",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri, groupId),
conversation, "application/json", accessToken);
}
/// <summary>
/// Checks whether an Office 365 Group exists or not
/// </summary>
/// <param name="groupName">The name of the group</param>
/// <returns>Whether the group exists or not</returns>
public static Boolean Office365GroupExists(String groupName)
{
String jsonResponse = MicrosoftGraphHelper.MakeGetRequestForString(
String.Format("{0}groups?$select=id,displayName" +
"&$filter=groupTypes/any(gt:%20gt%20eq%20'Unified')%20" +
"and%20displayName%20eq%20'{1}'",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri,
HttpUtility.UrlEncode(groupName).Replace("%27", "''")));
var foundGroups = JsonConvert.DeserializeObject <GroupsList>(jsonResponse);
return(foundGroups != null && foundGroups.Groups.Count > 0);
}
/// <summary>
/// Creates a new Office 365 Group for a target Project
/// </summary>
/// <param name="AccessToken">The AccessToken to use for creating the Office 365 Group</param>
/// <param name="group">The group to create</param>
/// <param name="membersUPN">An array of users' UPN that will become members of the group</param>
/// <param name="photo">The photo of the group</param>
/// <returns>The Office 365 Group created</returns>
public static Group CreateOffice365Group(
Group group,
String[] membersUPN,
Stream photo = null,
String accessToken = null)
{
// Create the Office 365 Group
String jsonResponse = MicrosoftGraphHelper.MakePostRequestForString(
String.Format("{0}groups",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri),
group, "application/json", accessToken: accessToken);
var addedGroup = JsonConvert.DeserializeObject <Group>(jsonResponse);
// Set users' membership
foreach (var upn in membersUPN)
{
MicrosoftGraphHelper.MakePostRequest(
String.Format("{0}groups/{1}/members/$ref",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri,
addedGroup.Id),
new GroupMemberToAdd
{
ObjectId = String.Format("{0}users/{1}/id",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri, upn)
},
"application/json", accessToken: accessToken);
}
// Update the group's picture, if any
if (photo != null)
{
// Retry up to 10 times within 5 seconds, because the
// Office 365 Group sometime takes long to be ready
Int32 retryCount = 0;
while (true)
{
retryCount++;
try
{
if (retryCount > 10)
{
break;
}
System.Threading.Thread.Sleep(TimeSpan.FromMilliseconds(500));
photo.Position = 0;
MemoryStream photoCopy = new MemoryStream();
photo.CopyTo(photoCopy);
photoCopy.Position = 0;
MicrosoftGraphHelper.MakePatchRequestForString(
String.Format("{0}groups/{1}/photo/$value",
MicrosoftGraphHelper.MicrosoftGraphV1BaseUri,
addedGroup.Id),
photoCopy, "image/jpeg", accessToken: accessToken);
break;
}
catch
{
// Ignore any exception, just wait for a while and retry
}
}
}
return(addedGroup);
}
