Dispatchers

As the name aptly defines, Flux dispatchers dispatches the actions to the subsequent stores. Dispatchers can be called as a registry of callbacks. All the stores are registered with the dispatchers.

Some key points of dispatcher are the following:

• There is only one dispatcher per app.

• Dispatchers being used as a center for all the registered callbacks.

• It functions as a broadcaster of all the actions to the stores. Dispatchers acts as a queue, which sequentially broadcasts the actions. This is different from generic pub-sub systems in the following two ways:

  1. Callbacks are not subscribed to particular events. Every payload is dispatched to every registered callback.

  2. Callbacks can be deferred in whole or part until other callbacks have been executed.

• The dispatcher has the capability to invoke the callbacks in the order specified, and it waits for other updates (waitFor() method does that).

• In the flux library (npm install flux) node_module, the register() and dispatch() methods are defined...