Note: Only one one-on-one chat can exist between two members. If a one-on-one chat already exists, this operation will return the existing chat and not create a new one.
Choose the permission or permissions marked as least privileged for this API. Use a higher privileged permission or permissions only if your app requires it. For details about delegated and application permissions, see Permission types. To learn more about these permissions, see the permissions reference.
List of conversation members that should be added. Every user who will participate in the chat, including the user who initiates the create request, must be specified in this list. Each member must be assigned a role of owner or guest. In-tenant guest users must be assigned the guest role. Out-of-tenant external users must be assigned with owner role.
Response
If successful, this method returns a 201 Created response code and the newly created chat resource in the response body.
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Chat
{
ChatType = ChatType.OneOnOne,
Members = new List<ConversationMember>
{
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('8b081ef6-4792-4def-b2c9-c363a1bf41d5')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('82af01c5-f7cc-4a2e-a728-3a5df21afd9d')"
},
},
},
},
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats.PostAsync(requestBody);
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Chat chat = new Chat();
chat.setChatType(ChatType.OneOnOne);
LinkedList<ConversationMember> members = new LinkedList<ConversationMember>();
AadUserConversationMember conversationMember = new AadUserConversationMember();
conversationMember.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles = new LinkedList<String>();
roles.add("owner");
conversationMember.setRoles(roles);
HashMap<String, Object> additionalData = new HashMap<String, Object>();
additionalData.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('8b081ef6-4792-4def-b2c9-c363a1bf41d5')");
conversationMember.setAdditionalData(additionalData);
members.add(conversationMember);
AadUserConversationMember conversationMember1 = new AadUserConversationMember();
conversationMember1.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles1 = new LinkedList<String>();
roles1.add("owner");
conversationMember1.setRoles(roles1);
HashMap<String, Object> additionalData1 = new HashMap<String, Object>();
additionalData1.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('82af01c5-f7cc-4a2e-a728-3a5df21afd9d')");
conversationMember1.setAdditionalData(additionalData1);
members.add(conversationMember1);
chat.setMembers(members);
Chat result = graphClient.chats().post(chat);
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Chat
{
ChatType = ChatType.Group,
Topic = "Group chat title",
Members = new List<ConversationMember>
{
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('8c0a1a67-50ce-4114-bb6c-da9c5dbcf6ca')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('82fe7758-5bb3-4f0d-a43f-e555fd399c6f')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('3626a173-f2bc-4883-bcf7-01514c3bfb82')"
},
},
},
},
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats.PostAsync(requestBody);
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Chat chat = new Chat();
chat.setChatType(ChatType.Group);
chat.setTopic("Group chat title");
LinkedList<ConversationMember> members = new LinkedList<ConversationMember>();
AadUserConversationMember conversationMember = new AadUserConversationMember();
conversationMember.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles = new LinkedList<String>();
roles.add("owner");
conversationMember.setRoles(roles);
HashMap<String, Object> additionalData = new HashMap<String, Object>();
additionalData.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('8c0a1a67-50ce-4114-bb6c-da9c5dbcf6ca')");
conversationMember.setAdditionalData(additionalData);
members.add(conversationMember);
AadUserConversationMember conversationMember1 = new AadUserConversationMember();
conversationMember1.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles1 = new LinkedList<String>();
roles1.add("owner");
conversationMember1.setRoles(roles1);
HashMap<String, Object> additionalData1 = new HashMap<String, Object>();
additionalData1.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('82fe7758-5bb3-4f0d-a43f-e555fd399c6f')");
conversationMember1.setAdditionalData(additionalData1);
members.add(conversationMember1);
AadUserConversationMember conversationMember2 = new AadUserConversationMember();
conversationMember2.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles2 = new LinkedList<String>();
roles2.add("owner");
conversationMember2.setRoles(roles2);
HashMap<String, Object> additionalData2 = new HashMap<String, Object>();
additionalData2.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('3626a173-f2bc-4883-bcf7-01514c3bfb82')");
conversationMember2.setAdditionalData(additionalData2);
members.add(conversationMember2);
chat.setMembers(members);
Chat result = graphClient.chats().post(chat);
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Chat
{
ChatType = ChatType.OneOnOne,
Members = new List<ConversationMember>
{
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('jacob@contoso.com')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('alex@contoso.com')"
},
},
},
},
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats.PostAsync(requestBody);
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Chat chat = new Chat();
chat.setChatType(ChatType.OneOnOne);
LinkedList<ConversationMember> members = new LinkedList<ConversationMember>();
AadUserConversationMember conversationMember = new AadUserConversationMember();
conversationMember.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles = new LinkedList<String>();
roles.add("owner");
conversationMember.setRoles(roles);
HashMap<String, Object> additionalData = new HashMap<String, Object>();
additionalData.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('jacob@contoso.com')");
conversationMember.setAdditionalData(additionalData);
members.add(conversationMember);
AadUserConversationMember conversationMember1 = new AadUserConversationMember();
conversationMember1.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles1 = new LinkedList<String>();
roles1.add("owner");
conversationMember1.setRoles(roles1);
HashMap<String, Object> additionalData1 = new HashMap<String, Object>();
additionalData1.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('alex@contoso.com')");
conversationMember1.setAdditionalData(additionalData1);
members.add(conversationMember1);
chat.setMembers(members);
Chat result = graphClient.chats().post(chat);
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Chat
{
ChatType = ChatType.Group,
Topic = "Group chat title",
Members = new List<ConversationMember>
{
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('8c0a1a67-50ce-4114-bb6c-da9c5dbcf6ca')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('82fe7758-5bb3-4f0d-a43f-e555fd399c6f')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"guest",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('8ba98gf6-7fc2-4eb2-c7f2-aef9f21fd98g')"
},
},
},
},
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats.PostAsync(requestBody);
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Chat chat = new Chat();
chat.setChatType(ChatType.Group);
chat.setTopic("Group chat title");
LinkedList<ConversationMember> members = new LinkedList<ConversationMember>();
AadUserConversationMember conversationMember = new AadUserConversationMember();
conversationMember.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles = new LinkedList<String>();
roles.add("owner");
conversationMember.setRoles(roles);
HashMap<String, Object> additionalData = new HashMap<String, Object>();
additionalData.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('8c0a1a67-50ce-4114-bb6c-da9c5dbcf6ca')");
conversationMember.setAdditionalData(additionalData);
members.add(conversationMember);
AadUserConversationMember conversationMember1 = new AadUserConversationMember();
conversationMember1.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles1 = new LinkedList<String>();
roles1.add("owner");
conversationMember1.setRoles(roles1);
HashMap<String, Object> additionalData1 = new HashMap<String, Object>();
additionalData1.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('82fe7758-5bb3-4f0d-a43f-e555fd399c6f')");
conversationMember1.setAdditionalData(additionalData1);
members.add(conversationMember1);
AadUserConversationMember conversationMember2 = new AadUserConversationMember();
conversationMember2.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles2 = new LinkedList<String>();
roles2.add("guest");
conversationMember2.setRoles(roles2);
HashMap<String, Object> additionalData2 = new HashMap<String, Object>();
additionalData2.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('8ba98gf6-7fc2-4eb2-c7f2-aef9f21fd98g')");
conversationMember2.setAdditionalData(additionalData2);
members.add(conversationMember2);
chat.setMembers(members);
Chat result = graphClient.chats().post(chat);
// Code snippets are only available for the latest version. Current version is 5.x
// Dependencies
using Microsoft.Graph.Models;
var requestBody = new Chat
{
ChatType = ChatType.OneOnOne,
Members = new List<ConversationMember>
{
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('8b081ef6-4792-4def-b2c9-c363a1bf41d5')"
},
},
},
new AadUserConversationMember
{
OdataType = "#microsoft.graph.aadUserConversationMember",
Roles = new List<string>
{
"owner",
},
TenantId = "4dc1fe35-8ac6-4f0d-904a-7ebcd364bea1",
AdditionalData = new Dictionary<string, object>
{
{
"user@odata.bind" , "https://graph.microsoft.com/v1.0/users('82af01c5-f7cc-4a2e-a728-3a5df21afd9d')"
},
},
},
},
};
// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats.PostAsync(requestBody);
// Code snippets are only available for the latest version. Current version is 6.x
GraphServiceClient graphClient = new GraphServiceClient(requestAdapter);
Chat chat = new Chat();
chat.setChatType(ChatType.OneOnOne);
LinkedList<ConversationMember> members = new LinkedList<ConversationMember>();
AadUserConversationMember conversationMember = new AadUserConversationMember();
conversationMember.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles = new LinkedList<String>();
roles.add("owner");
conversationMember.setRoles(roles);
HashMap<String, Object> additionalData = new HashMap<String, Object>();
additionalData.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('8b081ef6-4792-4def-b2c9-c363a1bf41d5')");
conversationMember.setAdditionalData(additionalData);
members.add(conversationMember);
AadUserConversationMember conversationMember1 = new AadUserConversationMember();
conversationMember1.setOdataType("#microsoft.graph.aadUserConversationMember");
LinkedList<String> roles1 = new LinkedList<String>();
roles1.add("owner");
conversationMember1.setRoles(roles1);
conversationMember1.setTenantId("4dc1fe35-8ac6-4f0d-904a-7ebcd364bea1");
HashMap<String, Object> additionalData1 = new HashMap<String, Object>();
additionalData1.put("user@odata.bind", "https://graph.microsoft.com/v1.0/users('82af01c5-f7cc-4a2e-a728-3a5df21afd9d')");
conversationMember1.setAdditionalData(additionalData1);
members.add(conversationMember1);
chat.setMembers(members);
Chat result = graphClient.chats().post(chat);
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