Outgoing webhook sends several requests in a row

Mykola Kutsyi 5

Hiya, I have set up an outgoing webhook in Microsoft Teams following the instructions at https://learn.microsoft.com/en-us/samples/officedev/msteams-samples-outgoing-webhook-nodejs/microsoft-teams-outgoing-webhook-sample/. However, the webhook sends 2-3 requests in a row to the web service. What could be the problem? Regards, Mykola.

JimmyYang-MSFT 53,761 Reputation points Microsoft Vendor

2024-02-02T02:39:24.0366667+00:00

Hi @Mykola Kutsyi Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your question is more related to Teams development, so I will also add Teams development tag to your thread. Thanks for your understanding!
Prasad-MSFT 6,876 Reputation points Microsoft Vendor

2024-02-28T12:07:30.5466667+00:00

This behaviour can occur for a variety of reasons, including network issues, server-side issues, or issues with the webhook configuration. Could you please check the webhook configuration and ensure that it is set up correctly?
You can also try checking the logs on the server-side to see if there are any errors or issues that could be causing the multiple requests.
Mykola Kutsyi 5 Reputation points

2024-03-12T11:51:02.9566667+00:00

@Prasad-MSFT , thank you for the reply.

The webhook configuration is pretty straightforward:

The same issue I had using very simple web service, which just return "hello world" message.

In addition I can say that the number of continues requests reduced from 3 to 2.... however from the web service perspective nothing was changed.
Prasad-MSFT 6,876 Reputation points Microsoft Vendor

2024-04-15T06:26:18.43+00:00

Mykola Kutsyi- Somehow, we missed the update on this thread. Apologies. Could you please let us know if you are still facing this issue? If yes, please do share the tenant details and webhook URL so that we can raise an ICM for this.
Adam D 0 Reputation points

2024-05-15T18:16:30.4933333+00:00

@Mykola Kutsyi did you ever resolve this? Seeing the same issue

Viktor Shmigol 0

Hello,

We are encountering an issue with multiple POST requests being sent to our API.

We created an outgoing webhook in our team, and when we mention this webhook (e.g., @Teams Test 1 test message), it triggers 3 or more identical messages to our API.

Please see the example below:

Screenshot 2024-07-20 at 13.05.46

We tested it using the Node.js example from this repository: Microsoft Teams Samples - Outgoing Webhook (Node.js). This example is suggested by the following article: Add an outgoing webhook.

Additionally, we tested it using a simple Ruby Grape API and encountered the same issue. The Teams outgoing webhook is being sent to our API multiple times.

class API::V1::IncomingWebhooks::Messages < Grape::API
  format :json

  helpers do
    def request_hmac_signature
      request.headers['authorization'].to_s.split[1]
    end

    def valid_hmac?
      serialized_payload_bytes = request.body.read.encode('utf-8')

      key_bytes = Base64.decode64(ENV['TEAMS_SECRET'])
      hmac_sha256 = OpenSSL::HMAC.digest('sha256', key_bytes, serialized_payload_bytes)
      calculated_hmac_value = Base64.encode64(hmac_sha256).strip
      request_hmac_signature == calculated_hmac_value
    end
  end

  namespace 'incoming_webhooks/:id' do
    resources :messages do
      desc 'Creates message'
      post do
        return unauthorized! unless valid_hmac?

        { type: 'message', text: 'Successfully received' }
      end
    end
  end
end

The result is the same

Screenshot 2024-07-20 at 13.23.32

Is there any solution to fix it?

Thanks!

Share via

Outgoing webhook sends several requests in a row

Your answer