createPromiseMachine

createPromiseMachine<F>(makePromise?: F): PromiseMachine<F>

Defined in: promise-machine-impl.ts:62

Creates a state machine for managing promise lifecycles. Handles Idle, Pending, Resolved, and Rejected states, and transitions for executing, resolving, and rejecting promises.

Usage:

const machine = createPromiseMachine((...args) => fetch(...args));
machine.execute(url).then(...).catch(...);
machine.getState().match({
  Idle: () => console.log("No promise running"),
  Pending: ({ promise }) => console.log("Promise is executing", promise),
  Resolved: (data) => console.log("Promise resolved with data", data),
  Rejected: (error) => console.error("Promise rejected with error", error),
});

Type Parameters

Type Parameter	Default type	Description
F extends PromiseCallback	PromiseCallback	The promise factory function type.

Parameters

Parameter	Type	Description
makePromise?	F	Optional factory function to create a promise. If omitted, execute will throw.

Returns

PromiseMachine<F>

A PromiseMachine instance with an execute method to run the promise and manage its state.