I am trying to dynamically create an Azure Function (Service Bus trigger) that will respond to messages from a Service Bus queue or topic.
There is a CLI way of creating an Azure Function that acts as an HTTP Trigger. However I havent found a way to create a Service Bus Trigger. Is this even doable ?
** Edit, I am able to programmatically create an Azure Service Bus Queue using this sample code
So really I am hoping to create a function based on the details of the servicebus queue generated at an earlier step and have the function fire from that queue.
Related
I'm trying to implement a Poc considering the scenario as,
Trigger LogicApp whenever message arrives in ServiceBus Queue. The message will be sent to/read by Azure Function which will be the next action within the LogicApp. After performing some business processes Azure function will return the response back to Logic App. Based on the response from Azure function, LogicApp will trigger few more functions and then they will send the response back to ServiceBus Queue.
I'm able to invoke/trigger LogicApp when a message arrives in ServiceBus queue. Since I'm newbie to Azure and LogicApp, I'm not sure how can I pass message to Azure Function to read and perform business validation within the LogicApp.
Thanks in advance!
Firstly, you need connect service bus to Azure Logic App then in next step by clicking on (+) symbol you can type azure function and follow the below process:
Then click on your Function app:
Then Click on the Azure Function you have in your function app:
Then click on request body and then on Service Bus Message:
So, by this way you can handle Azure Function using Azure Logic Apps:
Taken References from:
https://learn.microsoft.com/en-us/azure/logic-apps/logic-apps-azure-functions?tabs=consumption
Expose APIs from functions using Azure API Management | Microsoft Docs
I need to have a listener app in .NET Core which will continuously look into new messages in Azure Service Bus Queue. I've tried so far with different approaches, but only able to read messages from ASB queue which are already published to queue before my listener application has started consuming. But once all the existing messages are processed and then the listener is not able to read any new messages from ASB queue.
I'm trying to figure out whether there is any method in the namespace "Azure.Messaging.ServiceBus" which will continuously pull messages from ASB queue.
I do not want to create a WHILE loop or a long running Task.
Any help is appreciated.
There are 4 ways to create an "Azure Service Bus Queue". This could be the long procedure to understand. To make it precise, I am attaching the links to follow for different methods of creation.
ARM Template : https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-resource-manager-namespace-queue
Powershell: https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-quickstart-powershell
Azure CLI: https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-quickstart-cli
Azure Portal: https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-quickstart-portal
The Suitable answer for the requirement:
The receive modes are two types.
Receive and Delete
Peek lock
We can receive the message and pull it to read using Azure.Messaging.ServiceBus as required. Using the namespaces and utilizing the services of Azure.Messaging.ServiceBus
I am working on a scenario where when I need to create a new servicebus queue and an azure function that is triggered whenever a message is dropped in the said queue. Is there a way to call an API pass in some parameters and have the queue and function created ?
Any inputs will be much appreciated
Technically, You can achieve both as far as i know.
You can create a new function with the CLI command , i do not think there is an API to do the same.
To create a Service Bus queue you can do it with the Nuget package and here is an answer already.
I'm experimenting with Azure and Azure Service Bus. I just want to push messages onto a queue and then have my C# azure function log that is sees the message. I'm struggling to get it working. I've created an azure account, created a resource group, created a service bus, downloaded storage explorer. I have the shared access policy 'RootManageSharedAccessKey' which has the 'managed' option checked in the portal.
So guessing what I do next? I've gone to azure functions and created a function, shown below, in the azure portal. When I open up storage explorer I'm not sure what option to use to connect to my azure instance with?
Any help? Thank you!
azure function
using System;
using System.Threading.Tasks;
public static void Run(string myQueueItem, ILogger log)
{
log.LogInformation($"C# ServiceBus queue trigger function processed message: {myQueueItem}");
}
Using Service Bus Explorer you can connect to Azure Service Bus and administer messaging entities. You can download the tool here.
Once you download the tool you run “ServiceBusExplorer.exe” In the Service Bus Explorer go to File Connect
Enter Connection string which you can find on in
Azure portal Dashboard --> Service Bus --> Shared access policies
After connected Successfully you will be able to see all the topics/queues in the connected servicebus select the Queue that you wanted Access
and then click on Send Messages as follows it will populate message box then you have to write the content of your message in required format(json, xml etc) and send it.
Don't confuse Azure Service Bus Queues with Azure Storage Queues. You can use Azure Storage Explorer to see Azure Storage Queues, but not Azure Service Bus Queues. To access Azure Service Bus Queues, download Azure Service Bus Explorer here To my knowledge, there is no binary distribution and you're going to need to build it yourself after cloning the repo. Once you run it and connect to your Service Bus Namespace, you can create a queue and insert messages into it.
Next, you'll need to define a ServiceBusTrigger on your Azure Function. This is an attribute that will monitor the specified Service Bus Queue and poll for new messages. When it finds one, it'll call your function. Assuming you're using Azure Functions v2, here's a Microsoft tutorial to do this.
I have a requirement when webapp is started or stoped my azure function should be called. I have gone through Azure Grid Events, using Subscription as Resource Group but it does not capture any event on WebApp. So Azure Function is not called.
Is it possible to achieve this using Event Grid? I dont want to create use Custom Events.
Is it possible to achieve this using Event Grid? I dont want to create use Custom Events.
In short answer, it is not possbile to do that currenctly. We could get more information about Event grid from this tutorial.
Currently, the following Azure services support sending events to Event Grid:
Azure Subscriptions (management operations)
Custom Topics
Event Hubs
IoT Hub
Resource Groups (management operations)
Service Bus
Storage Blob
Storage General-purpose v2 (GPv2)
Note: It supports part of the region currently.
As Thomas mentioned that you could try to application insights paired with availability monitoring alert.