pubsub

Overview ¶

Package pubsub implements a publishing/subscription service. Subscribe to it using system/subscribe/service messages; subscribers will receive non-system (non-subscriber) messages that arrive at the publisher. If the `property` config is set, only the corresponding payload value of a message will be published.

Additional features:

• subscription to topics (default is "default")
• provide certain values from messages (payload properties)
• keep values in a configurable store and provide immediately to subscribers
• request value from a provider

Config settings:

• property (optional): the payload property that should be published
• memory: a Memory implementation for storing properties, key = topic, value = value top be publishe
• provider (optional) = the actor that should be queried for obtaining the value for a certain topic