How to send a message to a specific user

Question

I want to send a message to a specific user from external service using the user ID.

In the sample code, I can use "getPagedInstallations" to loop through all users.

-----------------------------------------

const pagedData = await notificationApp.notification.getPagedInstallations(

pageSize,

continuationToken

);

const installations = pagedData.data;

for (const target of installations) {

...

}

-----------------------------------------

I think this is bad performance.

Is there any other better way?

prasad_das-msft · Answer

narita1234&nbsp;-You can send a new&nbsp;chatMessage&nbsp;in the specified chat using&nbsp;this API.Send message in a chat - Microsoft Graph v1.0 | Microsoft Learn
This API cannot create a new chat; you must use the&nbsp;list chats&nbsp;method to retrieve the ID of an existing chat before creating a chat message.
If you want to create a new chat you can use below API:
&nbsp;Create chat - Microsoft Graph v1.0 | Microsoft Learn
&nbsp;
&nbsp;
Thanks,&nbsp;
Prasad Das
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How to send a message to a specific user

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