![]()
When the reporting exchange receives the message, it will check the binding keys between each of the intermediary exchanges to see where it should route the message.This reporting exchange has a direct binding to two other intermediary exchanges, one for email and one for fax (more on the intermediary exchange in a minute). Our message gets sent to the reporting exchange called send-report.Our backend will create a message marked with a routing key of email and an exchange type of direct to be sent to our message broker. A user submits a report in their application, which makes an API call to our.And it probably isn't quite what you'd expect at first. So if you wanted to visualize what we're going to build, you'd see something like the below. If you want to look at the repo directly, you can see: You can build something similar using this template in 0.9.4+ and should have even more flexibility with 0.10.x+ to do a lot of this for you.īoundedContexts : - SolutionName : Reporting I'm using a build in the middle of v0.10.0 so there isn't a great way to build it on demand at the moment, but you can jump tot he example repo below. I'm using a simple web api generated from Craftsman. Once the message reaches the queue, an email or fax service can get the message from the queue and send the report. To do this, we'll send a message to either the email queue or the fax queue depending on which routing key is sent along with the message. Use Case 1: Setting Up a Direct Exchangeįor this example, lets say that we have a reporting application and we want to send out a report over either email or fax. We're going to go over a few different use cases to cover what the different exchanges would look like. NET space with a great community, helpful maintainer, and thorough documentation. In this example, we're going to use MassTransit. Masstransit microservices code#So now that we have our message broker set up, let's send it some messages! We could roll our own code for this, but there are several really good libraries out there ( MassTransit, NServiceBus, Brighter, Rebus) that handle publishing and subscribing to messages for use already. Publishing and Subscribing to Messages Using MassTransit in. It isn't the best UI you've ever seen, but it has some pretty good features for managing your RMQ setup.ĬloudAMQP has a great write up on the different aspects of the UI and I'd definitely recommend checking it out. The MassTransit docker image we used for RabbitMQ leverages the management plugin to give you a use interface (this what you hit if you went to localhost:15672 or your CloudAMQP deployment). Understanding the RabbitMQ User Interface They also have great docs and even have a free-tier for devs to work in and get a feel for things, so it's perfect for this use case. They offer RMQ as a Service and focus entirely on doing this very well. ![]() There are obviously a myriad of options to use when deploying RabbitMQ, but I want to give a special shout out to CloudAMQP. Masstransit microservices password#Once you have the container up and running, you can go to localhost:15672 and log in with the user guest and password guest. While RabbitMQ has a great docker page, we're actually going to use the MassTransit Image instead to make our lives a bit easier (MassTransit is the message bus we're going to be using).ĭocker run -p 15672:15672 -p 5672:5672 masstransit/rabbitmq In this example, we're going to use RabbitMQ. ![]() We're going to start out by setting up our message broker (this is our post office where we send all of our messages for distribution). It won't take very long □ Setting Up RabbitMQ □ ⚠ Unless you're already very familiar with the EDA flow, I would strongly recommend going through the core concepts post. In the last post, we covered the core concepts and now we get to look at some code. In this post, we’ll see how we can set up our MassTransit bus to send message to and receive messages from RabbitMQ. This is the second post in the Building an Event Driven. Masstransit microservices series#The purpose of this series is to go through and in-depth walkthrough of setting up an event driven architecture in a distributed. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |