Send message in a chat

Namespace: microsoft.graph

Send a new chatMessage in the specified chat. This API can't create a new chat; you must use the list chats method to retrieve the ID of an existing chat before you can create a chat message.

Note: We don't recommend that you use this API for data migration. It doesn't have the throughput necessary for a typical migration.

Note: It is a violation of the terms of use to use Microsoft Teams as a log file. Only send messages that people will read.

This API is available in the following national cloud deployments.

Global service	US Government L4	US Government L5 (DOD)	China operated by 21Vianet
✅	✅	✅	✅

Permissions

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.

Permission type	Least privileged permissions	Higher privileged permissions
Delegated (work or school account)	ChannelMessage.Send	Chat.ReadWrite, ChatMessage.Send, Group.ReadWrite.All
Delegated (personal Microsoft account)	Not supported.	Not supported.
Application	Teamwork.Migrate.All	Not available.

HTTP request

POST /chats/{chat-id}/messages

Request headers

Name	Description
Authorization	Bearer {code}. Required.

Request body

In the request body, supply a JSON representation of a chatMessage object.

Response

If successful, this method returns a 201 Created response code and a new chatMessage object in the response body.

Examples

For a more comprehensive list of examples, see Create chatMessage in a channel or a chat.

Request

The following example shows a request.

HTTP

POST https://graph.microsoft.com/v1.0/chats/19:2da4c29f6d7041eca70b638b43d45437@thread.v2/messages
Content-type: application/json

{
  "body": {
     "content": "Hello world"
  }
}

C#

// Code snippets are only available for the latest version. Current version is 5.x

// Dependencies
using Microsoft.Graph.Models;

var requestBody = new ChatMessage
{
	Body = new ItemBody
	{
		Content = "Hello world",
	},
};

// To initialize your graphClient, see https://learn.microsoft.com/en-us/graph/sdks/create-client?from=snippets&tabs=csharp
var result = await graphClient.Chats["{chat-id}"].Messages.PostAsync(requestBody);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

CLI

// THE CLI IS IN PREVIEW. NON-PRODUCTION USE ONLY
mgc chats messages create --chat-id {chat-id} --body '{\
  "body": {\
     "content": "Hello world"\
  }\
}\
'

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Go

import (
	  "context"
	  msgraphsdk "github.com/microsoftgraph/msgraph-sdk-go"
	  graphmodels "github.com/microsoftgraph/msgraph-sdk-go/models"
	  //other-imports
)

graphClient := msgraphsdk.NewGraphServiceClientWithCredentials(cred, scopes)


requestBody := graphmodels.NewChatMessage()
body := graphmodels.NewItemBody()
content := "Hello world"
body.SetContent(&content) 
requestBody.SetBody(body)

messages, err := graphClient.Chats().ByChatId("chat-id").Messages().Post(context.Background(), requestBody, nil)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Java

GraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider( authProvider ).buildClient();

ChatMessage chatMessage = new ChatMessage();
ItemBody body = new ItemBody();
body.content = "Hello world";
chatMessage.body = body;

graphClient.chats("19:2da4c29f6d7041eca70b638b43d45437@thread.v2").messages()
	.buildRequest()
	.post(chatMessage);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

JavaScript

const options = {
	authProvider,
};

const client = Client.init(options);

const chatMessage = {
  body: {
     content: 'Hello world'
  }
};

await client.api('/chats/19:2da4c29f6d7041eca70b638b43d45437@thread.v2/messages')
	.post(chatMessage);

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PHP

<?php

// THIS SNIPPET IS A PREVIEW VERSION OF THE SDK. NON-PRODUCTION USE ONLY
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);

$requestBody = new ChatMessage();
$body = new ItemBody();
$body->setContent('Hello world');
$requestBody->setBody($body);

$result = $graphServiceClient->chats()->byChatId('chat-id')->messages()->post($requestBody)->wait();

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

PowerShell

Import-Module Microsoft.Graph.Teams

$params = @{
	body = @{
		content = "Hello world"
	}
}

New-MgChatMessage -ChatId $chatId -BodyParameter $params

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Python

# THE PYTHON SDK IS IN PREVIEW. FOR NON-PRODUCTION USE ONLY

graph_client = GraphServiceClient(credentials, scopes)

request_body = ChatMessage(
	body = ItemBody(
		content = "Hello world",
	),
)

result = await graph_client.chats.by_chat_id('chat-id').messages.post(request_body)

For details about how to add the SDK to your project and create an authProvider instance, see the SDK documentation.

Response

The following example shows the response.

HTTP/1.1 201 Created
Content-type: application/json

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#chats('19%3A2da4c29f6d7041eca70b638b43d45437%40thread.v2')/messages/$entity",
    "id": "1616991463150",
    "replyToId": null,
    "etag": "1616991463150",
    "messageType": "message",
    "createdDateTime": "2021-03-29T04:17:43.15Z",
    "lastModifiedDateTime": "2021-03-29T04:17:43.15Z",
    "lastEditedDateTime": null,
    "deletedDateTime": null,
    "subject": null,
    "summary": null,
    "chatId": "19:2da4c29f6d7041eca70b638b43d45437@thread.v2",
    "importance": "normal",
    "locale": "en-us",
    "webUrl": null,
    "channelIdentity": null,
    "policyViolation": null,
    "eventDetail": null,
    "from": {
        "application": null,
        "device": null,
        "conversation": null,
        "user": {
            "id": "8ea0e38b-efb3-4757-924a-5f94061cf8c2",
            "displayName": "Robin Kline",
            "userIdentityType": "aadUser"
        }
    },
    "body": {
        "contentType": "text",
        "content": "Hello World"
    },
    "attachments": [],
    "mentions": [],
    "reactions": [],
    "messageHistory": []
}