Extending gobpm

gobpm is built to be embedded and customized. Each seam is a small interface plus a thresher.With* registration call, so you can replace a default with your own implementation without touching the engine. Every page below covers the seam interface, the registration call, a minimal real implementation, and how the engine uses it.

• Custom ID generator — foundation.IDGenerator + foundation.SetGenerator.
• Custom Value type — adapters.Register[T](build func(*T) data.Value).
• Custom Operation — service.Operation (beyond gooper).
• Custom expression engine — expression.Engine + thresher.WithExpressionEngine.
• Custom rule engine — rules.Engine + WithRuleEngine. (adapters/dtable)
• Custom script engine — script.Engine + WithScriptEngine. (adapters/lua)
• Custom Data Store — datastore.DataStore + WithDataStore.
• Custom repository — repository.Repository + WithRepository.
• Dehydratable waits — renv.Dehydratable + exec.WaitHolders (how a wait releases the instance, and who holds it).
• Custom message broker — messaging.MessageBroker + WithMessageBroker.
• Custom clock — clock.Clock + WithClock.
• Custom observability — Observer/Reporter/Logger/Tracer/MetricsRecorder.
• Custom worker dispatcher — tasks.WorkerDispatcher + WithWorkerDispatcher.
• Custom task distributor — interactor.TaskDistributor + WithTaskDistributor.
• Custom authorization — auth.AuthorizationProvider + WithAuthorizationProvider.