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@nestjs/microservices

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Nest - modern, fast, powerful node.js web framework (@microservices)

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import { Observable } from 'rxjs'; /** * @publicApi */ export interface MessageHandler<TInput = any, TContext = any, TResult = any> { (data: TInput, ctx?: TContext): Promise<Observable<TResult>> | Promise<TResult>; next?: (data: TInput, ctx?: TContext) => Promise<Observable<TResult>> | Promise<TResult>; isEventHandler?: boolean; extras?: Record<string, any>; }