YAB: Sequencer

This package includes everything that is required to run a sequencer

Sequencer

A Sequencer is structure similar to a Runtime. It is given a list of SequencerModules, that are then dynamically instantiated and resolved by the Sequencer. When calling .start() on a sequencer, the sequencer starts up all the modules and exposes the services provided by them.

Sequencer modules

A Sequencer module is an abstract class that needs to be extended by any concrete sequencer module implementation(s).

export abstract class SequencerModule<
  Config
> extends ConfigurableModule<Config> {
  public abstract start(): Promise<void>;
 
  // more properties
}

The generic type parameter Config refers to the configuration object a module consumes. More on that below.

The start() method is called by the sequencer when it gets started. It returns a Promise that has to resolve after initialization, since it will block in the sequencer startup. That means that you mustn’t await server.start() for example.

Globals Globals