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Get change notifications for chat membership using Microsoft Graph

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Change notifications enable you to subscribe to changes (create and delete) in chats membership. You can get notified whenever a conversationMember resource is added or removed from a chat. You can also get the resource data in the notifications and therefore avoid calling the API to get the payload.

Continue with this article about scenarios for the conversationMember resource in the chat context. Or, find out about change notifications for other Microsoft Teams resources.

Note

If you request a subscription expirationDateTime that is more than 1 hour in the future, you must subscribe to lifecycle notifications by including a lifecycleNotificationUrl property in your subscription request. Otherwise your subscription request will fail with the following error message: lifecycleNotificationUrl is a required property for subscription creation on this resource when the expirationDateTime value is set to greater than 1 hour.

Subscribe to changes in membership of any chat at tenant level

To get change notifications for membership changes in any chat across the tenant, subscribe to /chats/getAllMembers. This resource supports including resource data in the notification.

Note: This API has licensing and payment requirements. It supports both model=A and model=B query parameters. If no model is specified, evaluation mode will be used.

Permissions

Permission type Permissions (from least to most privileged)
Delegated (work or school account) Not supported.
Delegated (personal Microsoft account) Not supported.
Application ChatMember.Read.All, ChatMember.ReadWrite.All, Chat.ReadBasic.All, Chat.Read.All, Chat.ReadWrite.All

Example

POST https://graph.microsoft.com/v1.0/subscriptions
Content-Type: application/json

{
  "changeType": "created,deleted",
  "notificationUrl": "https://webhook.azurewebsites.net/api/resourceNotifications",
  "resource": "/chats/getAllMembers",
  "includeResourceData": true,
  "encryptionCertificate": "{base64encodedCertificate}",
  "encryptionCertificateId": "{customId}",
  "expirationDateTime": "2019-09-19T11:00:00.0000000Z",
  "clientState": "{secretClientState}"
}

Subscribe to changes in membership of a particular chat

To get change notifications for membership changes in a particular chat, subscribe to /chats/{id}/members. This resource supports including resource data in the notification.

Permissions

Permission type Permissions (from least to most privileged)
Delegated (work or school account) ChatMember.Read, ChatMember.ReadWrite, Chat.ReadBasic, Chat.Read, Chat.ReadWrite
Delegated (personal Microsoft account) Not supported.
Application ChatMember.Read.Chat*, Chat.Manage.Chat*, ChatMember.Read.All, ChatMember.ReadWrite.All, Chat.ReadBasic.All, Chat.Read.All, Chat.ReadWrite.All

Note: Permissions marked with * use resource-specific consent.

Example

POST https://graph.microsoft.com/v1.0/subscriptions
Content-Type: application/json

{
  "changeType": "created,deleted",
  "notificationUrl": "https://webhook.azurewebsites.net/api/resourceNotifications",
  "resource": "/chats/{id}/members",
  "includeResourceData": true,
  "encryptionCertificate": "{base64encodedCertificate}",
  "encryptionCertificateId": "{customId}",
  "expirationDateTime": "2019-09-19T11:00:00.0000000Z",
  "clientState": "{secretClientState}"
}

Subscribe to changes in membership of any chat in a tenant where a Teams app is installed

To get change notifications for membership changes in any chat across the tenant where a specific Teams app is installed, subscribe to /appCatalogs/teamsApps/{teams-app-id}/installedToChats/getAllMembers. This resource supports including resource data in the notification.

Note: This API has licensing and payment requirements. It supports the model=B query parameter. If no model is specified, evaluation mode will be used.

Permissions

Permission type Permissions (from least to most privileged)
Delegated (work or school account) Not supported.
Delegated (personal Microsoft account) Not supported.
Application ChatMember.Read.WhereInstalled, ChatMember.ReadWrite.WhereInstalled, Chat.ReadBasic.WhereInstalled, Chat.Read.WhereInstalled, Chat.ReadWrite.WhereInstalled

Example

POST https://graph.microsoft.com/v1.0/subscriptions
Content-Type: application/json

{
  "changeType": "created,updated",
  "notificationUrl": "https://webhook.azurewebsites.net/api/resourceNotifications",
  "resource": "/appCatalogs/teamsApps/386bbcdb-1e1c-4f3f-b7d0-ad7b9ea6cf7c/installedToChats/getAllMembers",
  "includeResourceData": true,
  "encryptionCertificate": "{base64encodedCertificate}",
  "encryptionCertificateId": "{customId}",
  "expirationDateTime": "2019-09-19T11:00:00.0000000Z",
  "clientState": "{secretClientState}"
}

Notifications with resource data

For notifications with resource data, the payload looks like the following. This payload is for a membership change in a chat.

{
    "value": [{
        "subscriptionId": "c0125ef2-7a87-4e94-aa71-b995510f369b",
        "changeType": "Created",
        "clientState": "<<--SpecifiedClientState-->>",
        "subscriptionExpirationDateTime": "2021-06-03T11:04:58.5537601+00:00",
        "resource": "chats('19:1273a016-201d-4f95-8083-1b7f99b3edeb_976f4b31-fd01-4e0b-9178-29cc40c14438@unq.gbl.spaces')/members('MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=')",
        "resourceData": {
            "id": "MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=",
            "@odata.type": "#microsoft.graph.aadUserConversationMember",
            "@odata.id": "chats('19:1273a016-201d-4f95-8083-1b7f99b3edeb_976f4b31-fd01-4e0b-9178-29cc40c14438@unq.gbl.spaces')/members('MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=')"
        },
        "EncryptedContent": {
            "data": "<<--EncryptedContent-->>",
            "dataKey": "<<--EnryptedDataKeyUsedForEncryptingContent-->>",
            "encryptionCertificateId": "<<--IdOfTheCertificateUsedForEncryptingDataKey-->>",
            "encryptionCertificateThumbprint": "<<--ThumbprintOfTheCertificateUsedForEncryptingDataKey-->>"
        },
        "tenantId": "<<--TenantForWhichNotificationWasSent-->>"
    }],
    "validationTokens": ["<<--ValidationTokens-->>"]
}

For details about how to validate tokens and decrypt the payload, see Set up change notifications that include resource data.

The decrypted notification payload looks like the following. The payload conforms to the aaduserconversationmember schema. The payload is similar to that returned by GET operations.

{
    "userId": "2fc60663-19a2-4aa4-852c-f7ba4e90ada2",
    "email": null,
    "tenantId": "2432b57b-0abd-43db-aa7b-16eadd115d34",
    "id": "MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=",
    "roles": [
    "Owner"
    ],
    "displayName": null,
    "visibleHistoryStartDateTime": "1970-01-01T00:00:00Z",
    "user": null
}

Notifications without resource data

The following payload describes the information sent in the request for notifications without resource data. This particular payload signifies that a user has been added to a chat.

{
    "subscriptionId": "cae901f1-ad1d-41b1-95b7-37029ed327bf",
    "changeType": "Created",
    "tenantId": "<<--TenantForWhichNotificationWasSent-->>",
    "clientState": "<<--SpecifiedClientState-->>",
    "subscriptionExpirationDateTime": "2021-06-03T10:58:54.7656077+00:00",
    "resource": "chats('19:1273a016-201d-4f95-8083-1b7f99b3edeb_976f4b31-fd01-4e0b-9178-29cc40c14438@unq.gbl.spaces')/members('MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=')",
    "resourceData": {
        "id": "MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=",
        "@odata.type": "#microsoft.graph.aadUserConversationMember",
        "@odata.id": "chats('19:1273a016-201d-4f95-8083-1b7f99b3edeb_976f4b31-fd01-4e0b-9178-29cc40c14438@unq.gbl.spaces')/members('MCMjMjQzMmI1N2ItMGFiZC00M2RiLWFhN2ItMTZlYWRkMTE1ZDM0IyMxOToxMjczYTAxNi0yMDFkLTRmOTUtODA4My0xYjdmOTliM2VkZWJfOTc2ZjRiMzEtZmQwMS00ZTBiLTkxNzgtMjljYzQwYzE0NDM4QHVucS5nYmwuc3BhY2VzIyMyZmM2MDY2My0xOWEyLTRhYTQtODUyYy1mN2JhNGU5MGFkYTI=')"
    }
}

The resource and @odata.id properties can be used to make calls to Microsoft Graph to get the payload for the chat member details. GET calls always return the current state of the chat member details. If the chat member details changes between when the notification is sent and when the chat member details are retrieved, the operation returns the updated chat member details.

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