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Webhook subscriptions on OData endpoint?

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Posted on by Community Member

Hello.

I'm currently trying to integrate with a Microsoft Business Central solution On-Premise (BC14) and want to subscribe webhooks to OData endpoints and not only the REST endpoints.

As an example, I can perfectly fine subscribe to the following endpoint:

navservice.internal:8612/.../items

But I'm unable to subscribe to the following two


        navservice.internal:8612/.../Webshop_Categories
        navservice.internal:8612/.../Webshop_Categories

The first response is the following:

{
  "error": {
    "code": "BadRequest_NotFound",
    "message": "Resource not found for the segment 'Company'.  CorrelationId:  e86fbfaa-7553-4413-8664-1f823b2a1d64."
  }
}

The second response is the following:

{
  "error": {
    "code": "BadRequest_NotFound",
    "message": "Resource not found for the segment 'ODataV4'.  CorrelationId:  c86fbfaa-7553-4413-8664-1f823b2a1d62."
  }
}

Shouldn't I be able to subscribe to OData endpoints since the April '19 update?

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Stefano Demiliani 37,166 Most Valuable Professional on at

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Are these pages exposed as API pages? You need to create API pages to have webhooks support.

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Community Member on at

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I've added the page to 'Web services' in BC and I wasn't aware that I was able to expose OData pages as API pages. Is there any documentation as to how this is done?

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Stefano Demiliani 37,166 Most Valuable Professional on at

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Here references and a sample:

docs.microsoft.com/.../devenv-api-pagetype

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Community Member on at

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Hello again.

That apparently resolved my problem with being able to subscribe to a custom Page endpoint. But now I'm having a similar problem as described here:

community.dynamics.com/.../webhook-subscription

The subscription has been made, but changes to the tables referred in the Page of the type API doesn't fire notifications to the URL in the subscription. Do you have any idea why?

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Stefano Demiliani 37,166 Most Valuable Professional on at

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If the subscription is correctly established and you have a valid notification url (from where you will be able to receive the notification) it should work.

Please check this post:

demiliani.com/.../

all is explained here.

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Community Member on at

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Hi again, Stefano.

Thank you very much for your help so far.

I've read your article and it seems like I'm doing everything correctly according to your article.

I'm perfectly able to add the subscription and renew the subscription for the API Page, and I'm receiving HTTP calls on the notification URL for both adding the subscription and renewing the subscription. But I'm not receiving any notifications when adding or changing content to the table inside my Business Central solution.

I even tried subscribing to Items (a standard API endpoint) and changed a number of fields on that item, but I'm not receiving any HTTP calls for this subscription either. I feel confident that it most be some missing configuration in the on-premise solution?

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Community Member on at

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Hi,

have you solve the problem.?

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Community Member on at

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Partially.

It seems that the CU (CU04 on 2019 Spring release) I'm running has a bug regarding the notifications. Somewhere between CU04 and CU10 this is fixed more or less by accident, according to Microsoft Support. The notifications work from CU10, so my fix has to be to upgrade.

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