Azure Functions Runtime v1 EventGrid Subscription create fails

问题

What I'm doing wrong or how to make it work? I'm using Azure Runtime v1 (need to use .NET Framework, not core).

Function code in Visual Studio as follows:

// This is the default URL for triggering event grid function in the local environment.
// http://localhost:7071/admin/extensions/EventGridExtensionConfig?functionName={functionname} 

using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Host;
using Microsoft.Azure.WebJobs.Extensions.EventGrid;
namespace FunctionApp1
{
    public static class Function1
    {
        [FunctionName("Function1")]
        public static void Run([EventGridTrigger]Microsoft.Azure.EventGrid.Models.EventGridEvent eventGridEvent, TraceWriter log)
        {
            log.Info(eventGridEvent.Data.ToString());
        }
    }
}

When I try to add subscription for that function, regardless if through portal or cli, I'm getting following error:

PS Azure:\> az eventgrid event-subscription create -g [<myGroupName>] --topic-name data-generated --name Func1Subs --endpoint "https://[<myFunctionAppName>].azurewebsites.net/admin/extensions/EventGridExtensionConfig?functionName=Function1&code=[<code>]"
Argument 'resource_group_name' has been deprecated and will be removed in version '2.1.0'. Use '--source-resource-id' instead.
Argument 'topic_name' has been deprecated and will be removed in version '2.1.0'. Use '--source-resource-id' instead.
The attempt to validate the provided endpoint https://[<myFunctionAppName>].azurewebsites.net/admin/extensions/EventGridExtensionConfig failed. For more details, visit https://aka.ms/esvalidation.

I tried both system code obtained from GET request on https://[<myFunctionAppName>].azurewebsites.net/admin/host/systemkeys/eventgridextensionconfig_extension?code=[<master_key>], default key and even master key itself - same result.

When using the button on the portal to "Add Event Grid subscription" - I also get this error in Notification box.

When I create a function on portal - creating subscription works fine.
Also when I deploy a .netcore function to 2.x runtime - and use the portal button to create subscription - this works fine as well. But like I said - I want to use runtime 1.x to deploy a .NETFramework function.

回答1:

I reproduced this one and some observations here

it works fine if I use default function signature

    namespace FunctionApp7
{
    public static class Function1
    {
        [FunctionName("Function1")]
        public static void Run([EventGridTrigger]JObject eventGridEvent, TraceWriter log)
        {
            log.Info(eventGridEvent.ToString(Formatting.Indented));
        }
    }
}

but when I use signature like you have mentioned, I get error in creating event subscription. I also need to add nuget package for following to compile Microsoft.Azure.EventGrid 3.0.0

    namespace FunctionApp10
{
    public static class Function1
    {
        [FunctionName("Function1")]
        public static void Run([EventGridTrigger]Microsoft.Azure.EventGrid.Models.EventGridEvent eventGridEvent, TraceWriter log)
        {
            log.Info(eventGridEvent.Data.ToString());
        }
    }
}

Take a look at following link

https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-event-grid

Following signature is not applicable for V1 functions

public static void Run([EventGridTrigger]Microsoft.Azure.EventGrid.Models.EventGridEvent eventGridEvent, TraceWriter log)

回答2:

You can validate your EventGridTrigger function for Azure Event Grid subscriber using a Postman, see the following:

Request Url:

POST https://{myFuncApp}.azurewebsites.net/admin/extensions/EventGridExtensionConfig?functionName={myEventGridTriggerFnc}&code={_masterKey}

Header:

aeg-event-type: SubscriptionValidation

Body:

[{
   "id": "123",
   "subject": "abc",
   "eventType": "xxx",
   "eventTime": "2019-01-31T16:17:37.1080645Z",
   "data": {
      "validationCode": "xxxxxxxx",
      "validationUrl": "",
      },
   "dataVersion": "0",
   "metadataVersion": "1",
   "topic": "xxxx"
}]

The successful response will return:

{"validationResponse":"xxxxxxxx"}

Notes:

The Request Url can be copied from the portal yourFunction/Integrate, property Event Grid Subscription URL
In the case of manually creating a Request Url, use the _master key from the portal yourFunction/Manage page.
For testing a function body, use the header 'aeg-event-type: Notification'

来源：https://stackoverflow.com/questions/54462432/azure-functions-runtime-v1-eventgrid-subscription-create-fails

标签

.net

azure

azure-functions

azure-eventgrid