Messaging

What’s the asynchronous request-response pattern for? We’re used to synchronous communication. You make a request to another service and get a response. When you move to asynchronous communication, you often think of messages as fire-and-forget. You send a command to a queue, and the consumer handles it asynchronously. Because of the temporal decoupling, you don’t know when the message was processed or what the result was. However, there is a solution! Let me explain how you can use the request-response pattern to reply sender once a message is processed. YouTube Check out my YouTube channel where I post all kinds of content… Read More »Asynchronous Request-Response Pattern for Non-Blocking Workflows

Do you need to integrate with external systems or services? Leveraging an event driven architecture enables you to build a webhooks system that can be decoupled from your main application code. Enabling you to call external systems that have subscribed via webhooks in complete isolation from your application code. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. In-Process The simplest approach to building a webhooks system is to make calls in-process to the external HTTP APIs that want to be notified when we… Read More »Building a Webhooks System with Event Driven Architecture

You secure sensitive data when stored in a database, but are you securing sensitive data in an event or message driven architecture? For example, if you need to include Credit Card information in a message for a queue to be processed. But need to be compliant with PCI-DSS! You can encrypt the actual message or a portion of the message, or if the broker supports it, use server-side encryption. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Transfering Senstive Data When not using… Read More »Securing Sensitive Data in an Event Driven Architecture