How to update Flow Triggers in a custom connectors

[russgove]

Hi,
I'm working on a flow connector to trigger a flow when an event is triggered in the office 365 management activity api as noted in #2397,

The connector is implemented using an Azure FUnction App. I have some questions about how to code the function to handle updates to the trigger. My connector has 2 parameters-- contentSource and eventsToCapture, If a user adds my connector to a flow it gets handled by my function app by storing the contentSource eventsToCapture and the flow triggure Url in an azure data table.

My questions are: how to i get the flow to call a separate method when the user changes one of the values in the trigger (or does it just call the same method as when the trigger is added.
What happens when a trigger gets deleted? How do i know when to remove the entry from my table?

My flow is currently set up like this:

swagger: '2.0'
info:
  title: Default title
  description: ''
  version: '1.0'
host: xxxx-1xx-2-125-18.ngrok.io
basePath: /api
schemes:
  - https
consumes: []
produces: []
paths:
  /api/Function1:
    x-ms-notification-content:
      description: Result
  /Function1:
    x-ms-notification-content:
      description: Result
    post:
      responses: {}
      summary: When an Event is Logged
      description: >-
        This trigger is called when an event is logged in the Office 365
        Management Activity API (see
        https://learn.microsoft.com/en-us/office/office-365-management-api/office-365-management-activity-api-schema)
      operationId: OnEventLogged
      x-ms-visibility: important
      x-ms-trigger: single
      parameters:
        - name: body
          in: body
          required: true
          schema:
            type: object
            properties:
              contentSource:
                type: string
                description: contentSource
                x-ms-visibility: important
                title: ''
                enum:
                  - Audit.AzureActiveDirectory
                  - Audit.Exchange
                  - Audit.SharePoint
                  - Audit.General
                  - DLP.All
              eventsToCapture:
                type: string
                description: eventsToCapture
                title: ''
              flowTriggerUrl:
                type: string
                description: flowTriggerUrl
                x-ms-visibility: internal
                x-ms-notification-url: true
                title: ''
            required:
              - flowTriggerUrl
              - contentSource
              - eventsToCapture
definitions: {}
parameters: {}
responses: {}
securityDefinitions: {}
security: []
tags: []

[russgove]

Also, are there any samples available of implementing custom flow triggers using azure functions.