ts-event-bus/build/Handler.d.ts

Distributed messaging in Typescript

/**
 * A Handler represents a callable that is capable of responding to an event.
 * It may be directly provided by the client in the case of same-process usage,
 * or provided by the transport in the case of remote usage.
 *
 * Handlers may be synchronous or asynchronous. Asynchronicity is Promise-based.
 */
export type Handler<RequestData = any, ResponseData = any> = (requestData: RequestData) => ResponseData | Promise<ResponseData>;
/**
 * Helper function to call all the handlers registered for a given event and
 * map the result of the call to a Promise.
 *
 * - If no handlers are registered, the Promise is automatically fulfilled.
 * - If one handler is registered, a Promise that will resolve with the result
 * of the call of that one handler will be returned
 * - If more than one handler is registered, a Promise that will resolve when all
 * handlers have been successfully called and fulfilled is returned, but the results
 * of all these handlers is discarded.
 */
export declare function callHandlers(data: any, handlers: Handler<any, any>[]): Promise<any>;
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