Subscriptions

Overview

The Filter By samples demonstrate message routing through Subscriber topic subscriptions and conditions.

When routing by topics, messages are routed to parties that subscribe to a particular topic or subtopic. Sometimes a particular party may want to only receive messages based on some type of condition, such as a value based on an XPATH lookup.

In the Filter by XPATH sample, the subscribing parties filter the messages they subscribe to by adding a condition on the topic subscription where the body matches an XPATH value.

In the Filter by Object sample, the subscribing parties filter the messages they subscribe to by adding a condition on the topic subscription where the body matches a specific object type.

In the Filter by Subtopic sample, the subscribing parties filter the messages they subscribe to by subscribing to a specific subtopic.

Running the Sample

Open the Sample

To open this sample, see the topic Using the Neuron Samples and select one of the samples under Client API->Subscriptions.

Setup Instructions

Before running this sample, follow these instructions:

1. In the Visual Studio project that opens, add a reference to Neuron.Esb.dll in all four projects.
2. Configure the solution for multiple startup projects, setting all four projects to Start.
3. Build the solution.

Run Instructions

1. In Visual Studio, press F5 to start all four projects.
2. Once all programs have connected to the ESB, press Enter on the Sender to initiate communication.
3. As the sample runs, the Sender sends several messages to the ESB and displays the responses.