Azure-sdk-for-net: EventGrid: The attempt to validate the provided endpoint failed

[Sergey1209]

I'm trying to create EventGridSubscription for Azure Function that uses _EventGridTrigger_. When running _New-AzureRmEventGridSubscription_ cmdlet i see the following error:

Url validation: The attempt to validate the provided endpoint https://BlobCreatedHandler.azurewebsites.net/admin/EventGridExtensionConfig failed.

Here is my azure function code:

[FunctionName("BlobCreatedHandler")]
public static async Task Run([EventGridTrigger]JObject blobEvent,
[Queue("blob-created-queue", Connection = Strings.StorageAccountConnection)] CloudQueue blobCreatedQueue,
[Inject(typeof(IBlobCreatedHandler))] IBlobCreatedHandler blobCreatedHandler)
{
await blobCreatedHandler.Handle(blobEvent, blobCreatedQueue);
}

I tried different versions of AzureRM.EventGrid module. Interesting thing that on versions lower than 0.3.0 it works fine. But all recent versions starting from 0.3.1 are failing with this error

[markheath]

I'm seeing the same error (The attempt to validate the provided endpoint https://myfuncapp.azurewebsites.net/runtime/webhooks/EventGrid failed.) trying to register an Azure Function with the Azure Functions CLI using az eventgrid event-subscription create

I know that the endpoint URL I'm providing is correct, as I've been able to use Postman to send it a validation request and get the validationCode echoed back to me.

I'm also able to use the portal tooling to create the subscription successfully, but I can't automate it

[Sergey1209]

I'm seeing the same error (The attempt to validate the provided endpoint https://myfuncapp.azurewebsites.net/runtime/webhooks/EventGrid failed.) trying to register an Azure Function with the Azure Functions CLI using az eventgrid event-subscription create

I know that the endpoint URL I'm providing is correct, as I've been able to use Postman to send it a validation request and get the validationCode echoed back to me.

I'm also able to use the portal tooling to create the subscription successfully, but I can't automate it

Mark, i was able to resolve this by adding "extensions" in between "admin" and "EventGridExtensionConfig". Like that:
https://$FunctionAppName.azurewebsites.net/admin/extensions/EventGridExtensionConfig?functionName=BlobCreatedHandler&code=$systemKey

[markheath]

Thanks Sergey, but unfortunately that is the path for v1 of Azure Functions. My function app is v2 which according to the docs expects /runtime/webhooks/EventGrid

And I can call this URL with Postman and manually simulate a validation request, so I'm pretty sure I've got the endpoint address right.

[markheath]

I eventually got to the bottom of this. It was because the webhook endpoint contains an & character which needed to be escaped to ^^^&

[ahamad-MS]

@markheath and @sergey1209 . Can you please confirm if this issue is resolved for you by now? thanks

[markheath]

I can work around it with the escaping I mentioned above

[jfggdl]

@Sergey1209, would you please confirm if your issue is different and requires further attention?

@markheath, good to hear that. Thanks.

[Sergey1209]

I was able to workaround it either