pubst

Pubst

I suggest that you DO NOT use this for anything terribly serious just yet. I'm still kind of feeling it out myself.

This is yet another basic asynchronous pub/sub implementation in JavaScript. I almost used PubSubJS, but there are a few features I wanted that it doesn't support. I may try and add those in so I don't need to maintain this lib ;-). The features I wanted in a pub/sub lib (in order of importance) are:

• Prime subscribers with latest payload even if it occurred before the subscription.
• Allow subscribers to define default payloads to be sent in the event of an empty or null publish.
• Warnings when publishing to a topic that has no subscribers.
• Allow for a subscription to all topics. (Not implemented here either)

TODO (In no particular order)

• If I'm going to continue to use this implementation, I should probably write actual documentation.
• Warnings when publishing to a topic that has no subscribers.
• Allow for a subscription to all topics.
• Heirarchical topic names and pubish events.
• An initialization of the event emitter that allows for explicit naming of known topics.
  • Once implemented, can warn when a topic is subscribed to that has not been declared.
• Warnings when a large number of subscribers exist for a given topic. (Maybe max is configurable?) Should help in the detection of subscriber leaks.
• Support debounce settings for spurriously noisy topics.
• Support throttle settings for consistently noisy topics.
• Support topic queing with a max history size to maintain.
• Support various persistent storage strategies.
• ???
• Profit

Changelog

v0.0.5 - Jan 04 2018

• Adds basic console message when publishing to a topic that has no matching subscribers. I will likely make this configurable later.