Documentation about handling timeout in microservices

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Current behavior

Expected behavior

Ref https://github.com/nestjs/nest/issues/1414#issuecomment-451449323

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Environment

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[dmitryblackwell]

Thanks to this comment I found a solution. So I leave it here, in case, someone will face same problem.

What you have to do is install rxjs package:

yarn add rxjs

Then just add call of timeout method to the pipe:

import { timeout } from 'rxjs/operators';
// ...
this.client
      .send<Device[], any>(Message.GET_DEVICES, {})
      .pipe(timeout(5000))
      .toPromise();

After 5 seconds, if microservice isn’t responding, it will throw an error:

[Nest] 17544   - 05/24/2020, 8:08:27 AM   [ExceptionsHandler] Timeout has occurred +5009ms

[kamilmysliwiec]

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