Meta.Lib 1.0.0

MetaPubSub is an implementation of the publish/subscribe pattern - when the publisher and subscriber know nothing of each other but can exchange messages. It's fast, lightweight and beside basic functionality has some cool features:

• the independent order of the Subscribe and Publish methods;
• awaitable methods, for example, you can await Publish and wait until all subscribers have finished processing the message;
• at least once delivery check - you can opt in to have an exception if no one subscribed to your message;
• message filtering - you can define a predicate to subscribe only those messages you want to process;
• timeout to wait for a subscriber - your message can be queued and wait until someone subscribed and processed it;
• scheduling a message - your message can be queued and published after a time delay;
• asynchronous waiting for a specified message by a single method call, without need to Subscribe/Unsubscribe to this message;
• request-response pattern - send a message and wait for the response as a single awaitable method, without need to Subscribe/Unsubscribe to the response message;
• cancellation token support - you can cancel scheduling or waiting for the message;
• exceptions handling - all exceptions raised when a message processing by subscribers can be caught by the publisher as an AggregateException.