NiFi Ingest 26.3
NiFi Ingest

# MicrosoftTeamsEventsProcessor

The Microsoft Graph API allows you to register event handlers, so that notifications are sent to a web server when various events take place. The MicrosoftTeamsEventsProcessor is a NiFi Ingest processor that handles these events.

The processor supports the following Graph API subscriptions:

- Organization-wide channel messages
- Organization-wide chat messages
- User-specific chat messages (supports multiple users)

There are many use cases for this processor - for example you could use it to ingest new messages as soon as they are created (real-time ingestion), rather than having a connector retrieve messages at regular intervals. You can also use the processor to create a Microsoft Teams automated bot by intercepting messages and then providing suitable responses.

To receive notifications from Microsoft, you must have a public-facing web server with a trusted SSL certificate. The MicrosoftTeamsEventsProcessor starts its own web server but you must provide the certificate, and you might want to set up a reverse proxy.

The processor produces FlowFile documents that are compatible with the Microsoft Teams connector processors for created/updated/deleted messages and replies. To retrieve attachments and call recordings, route the FlowFiles to a ListMicrosoftTeams processor (to obtain the relevant identifiers) followed by a FetchMicrosoftTeams processor (to obtain the binary files).

## Properties

Name | Description
--- | ---
IDOL License Service | An IdolLicenseServiceImpl that provides a way to communicate with a Knowledge Discovery License Server.
Event Types | A comma-separated list of event types to request from Microsoft Teams: created updated
Event Web Server Host | The processor starts a web server to receive event notifications from Microsoft. This parameter specifies the host name to bind to.
Event Web Server Port | The processor starts a web server to receive event notifications from Microsoft. This parameter specifies the port number to use.
OAuth site name | The processor must be able to use the Microsoft Graph API. To configure OAuth authentication, right-click the processor and click Advanced, and then follow the instructions on the GUIDED SETUP tab.
OAuth sites file | The processor must be able to use the Microsoft Graph API. To configure OAuth authentication, right-click the processor and click Advanced, and then follow the instructions on the GUIDED SETUP tab.
Proxy Configuration Service | A ProxyConfigurationServiceImpl to use when connecting to the Microsoft Graph API. The processor has to register the Event Web Server with Microsoft.
SSL Config Service | An IdolSSLConfigServiceImpl to use to configure the SSL settings for the Event Web Server. The web server must have a trusted SSL certificate (not a self-signed certificate).
Attachment version | Specifies which version of an attachment to ingest: To ingest the latest version of the file that exists in OneDrive use the default value (`Latest`). To ingest the version that was attached to the message, and ignore any subsequent changes made to the attachment in OneDrive, set this property to `Matching`.
Chat User IDs | Chat member user identifiers. To process chats for all users, leave this property unset.
Event Web Server Max Request Size | The maximum size (in bytes) for incoming requests to the web server.
Event Web Server Threads | The number of threads to use for processing incoming requests.
Event Web Server Trace Logging Enabled | To log debug-level information about incoming requests, set this property to TRUE.
Event Web Server Use SSL | To configure the events web server to accept secure connections, set this property to TRUE.
License model | The license model that you want to use. Some parts of the Teams API have additional requirements, including payment to Microsoft for using certain features.
Process Channels | Specifies whether to monitor channels.
Process Chats | Specifies whether to monitor chats.
Receiver Expiry | If the Receiver URL is not available for this time duration, Microsoft removes the subscription (no further events are sent).
Receiver URL | The URL for Microsoft to send events to.

## Relationships

Name | Description
--- | ---
created | FlowFiles that represent something being created in Microsoft Teams.
updated | FlowFiles that represent something being updated in Microsoft Teams.
success | Successfully handled ProcessEvent FlowFiles.
failure | Unsuccessfully handled ProcessEvent FlowFiles.

Copyright 2018-2026 Open Text
Version 26.3 | Last updated July 2026

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Product: Knowledge Discovery NiFi Ingest 26.3

Topic Title: MicrosoftTeamsEventsProcessor