@nestjs/microservices/context/rpc-proxy.js

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

import { isObservable } from 'rxjs';
import { catchError } from 'rxjs/operators';
import { ExecutionContextHost } from '@nestjs/core/internal';
export class RpcProxy {
    create(targetCallback, exceptionsHandler) {
        return async (...args) => {
            try {
                const result = await targetCallback(...args);
                return !isObservable(result)
                    ? result
                    : result.pipe(catchError(error => this.handleError(exceptionsHandler, args, error)));
            }
            catch (error) {
                return this.handleError(exceptionsHandler, args, error);
            }
        };
    }
    handleError(exceptionsHandler, args, error) {
        const host = new ExecutionContextHost(args);
        host.setType('rpc');
        return exceptionsHandler.handle(error, host);
    }
}