![]() ![]() I want to create an Azure Function to process the queue messages independently from the containers running in Kubernetes and then will deactivate the background service entirely (I will leave it in the code in case you want to use it). Additionally, there is no insight into the background service and it would be nice to have some information about the queue processing logic, like how many messages were processed or how many errors occurred. The background service always scales with the OrderAPI, even though it might not be necessary and therefore wastes resources and as a result, increases the costs. The problem with this solution is that every container running in Kubernetes has this background service running. The OrderApi has a background service that checks the RabbitMQ queue for new messages and then takes these messages to update the customer names in its database. Every time a customer is updated, the CustomerApi places a message with the new information on either a RabbitMQ or Azure Service Bus Queue, depending on its Startup configuration. The demo application contains two microservices called OrderApi and CustomerApi. You can find the code of the demo on GitHub. You can use an App Service Plan which you pay monthly or you can use a Consumption plan and only pay when the function is running.Īzure Functions are great when you want to execute for background services like processing items on queues but it is not that great when users are waiting for the result because it might take some time to start the function. Microsoft offers a wide variety of triggers and programming languages like C#, Java, or Phyton for your function. Serverless means that Microsoft abstracts the infrastructure away and fully manages its operation and scaling.Īn Azure Function is usually one method that can be triggered by an event like an HTTP call or a message being placed in a queue. What are Azure Functions?Īzure Functions is a serverless compute platform that allows for quick development without the need to manage the underlying infrastructure. This post is part of “Microservice Series - From Zero to Hero”. This post will show how to use Azure Functions to read messages from an Azure Service Bus Queue and how to write data to an Azure SQL Database. This helps to efficiently develop event-driven solutions. Azure Functions is a serverless compute offering and lets developers execute code without thinking about the infrastructure it is running on.
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