Event-driven .NET: Concurrent Producer/Consumer using a non-blocking, async queue

In a previous article I wrote about how to implement concurrent producer/consumer using a BlockingCollection. This is a thread-safe, event-driven approach that uses high-level concurrent constructs. The only downside is that the consumer uses a blocking call to dequeue messages. In other words, it wastes a thread. Is there a way to implement this using … Read more Event-driven .NET: Concurrent Producer/Consumer using a non-blocking, async queue

ASP.NET – Async SSE endpoint

Server-Sent Events (SSE) allow a client to subscribe to messages on a server. The server pushes new messages to the client as they happen. This is an alternative to the client polling the server for new messages. In this article I’ll show how to implement the messaging system shown in the diagram below. This uses … Read more ASP.NET – Async SSE endpoint

Event-driven .NET: use FileSystemWatcher instead of polling for new files

You can use FileSystemWatcher to get notified of file system changes, such as when a file is created. Here’s an example of reacting to when a JSON file is created: Compared to polling, this event-driven approach with FileSystemWatcher is more efficient and simpler. In the remainder of this article I’ll show an example of how … Read more Event-driven .NET: use FileSystemWatcher instead of polling for new files

Receive messages from an Amazon SQS queue using Spring Boot

In this article we’ll use Spring Boot to create an endpoint that polls an Amazon Simple Queue Service (SQS) queue for messages. Messages will consist of famous quotes saved to the database as they’re received. Amazon SQS and Spring Series This article is part of a series: Create a queue in Amazon SQS Set up … Read more Receive messages from an Amazon SQS queue using Spring Boot

Send messages to an Amazon SQS queue using Spring Boot

In this article we’ll use Spring Boot to create an endpoint that can send messages to an Amazon Simple Queue Service (SQS) queue. In our application messages will consist of famous quotes. Amazon SQS and Spring Series This article is part of a series: Create a queue in Amazon SQS Set up a Spring Boot … Read more Send messages to an Amazon SQS queue using Spring Boot

Create a queue in Amazon SQS

In this article we’re going to create a queue in Amazon Simple Queue Service (SQS) using an AWS Stack template. Amazon SQS and Spring Series This article is part of a series: Create a queue in Amazon SQS Set up a Spring Boot app with Amazon SQS Send messages to an Amazon SQS queue using … Read more Create a queue in Amazon SQS