cqrs-eda/dist/types/base.d.ts

Lightweight CQRS and Event-Driven Architecture library using TypeScript decorators, handlers and typings. Perfect for scalable event-driven apps.

export interface ICommand<Payload = any> {
    execute(payload: Payload): Promise<void>;
}
export interface IQuery<Params = any, Result = any> {
    execute(params: Params): Promise<Result>;
}
export interface IObserver<Payload = any> {
    execute(payload: Payload): Promise<void>;
}
export type Constructor<T = any> = new (...args: any[]) => T;
export interface IQueryHandler<Q extends Record<string, any>, R extends {
    [K in keyof Q]: any;
}> {
    fire<K extends keyof Q>(queryName: K, params: Q[K]): Promise<R[K]>;
}
export interface IObserverHandler<O extends Record<string, any>> {
    publish<K extends keyof O>(eventName: K, payload: O[K]): Promise<void>;
}
export interface ICommandHandler<C extends Record<string, any>> {
    fire<K extends keyof C>(commandName: K, payload: C[K]): Promise<void>;
}
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