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Open source

Client.healthCheck([service])

Check the health status of the gRPC service using the gRPC Health Checking protocol.

The method returns the health status of the provided service. If no service name is provided, it checks the overall server health.

The health check response includes a status field that can be one of the following constants:

  • HealthCheckServing: The service is healthy and serving requests
  • HealthCheckNotServing: The service is not serving requests
  • HealthCheckUnknown: The health status is unknown

Example

JavaScript
JavaScript 
import grpc from 'k6/net/grpc';
import { check } from 'k6';

const client = new grpc.Client();
client.load([], 'routeguide.proto');

export default () => {
  client.connect('localhost:10000', { plaintext: true });

  // Check overall server health
  const res = client.healthCheck();

  check(res, {
    'server is healthy': (r) => r && r.status === grpc.StatusOK,
    'health status is serving': (r) => r && r.message.status === grpc.HealthCheckServing,
  });

  // Check specific service health
  const svcRes = client.healthCheck('my.service.Name');
  console.log('Health status:', svcRes.message.status);

  client.close();
};