k6 grpc Examples inport error

[owanio1992]

Brief summary

in this doc
https://grafana.com/docs/k6/latest/javascript-api/k6-experimental/grpc/stream/
import { Client, Stream } from 'k6/experimental/grpc';

but in git
https://github.com/grafana/k6/blob/master/examples/grpc_client_streaming.js
https://github.com/grafana/k6/blob/master/examples/grpc_server_streaming.js
it's

import { Client, Stream } from 'k6/net/grpc';

and use git script (both grpc_client_streaming.js, grpc_server_streaming.js )
it's will get error

ERRO[0000] TypeError: Cannot read property 'name' of undefined
        at pointSender (file:///k6-master/examples/grpc_client_streaming.js:112:12(5))
        at file:///k6-master/examples/grpc_client_streaming.js:102:16(60)  executor=per-vu-iterations scenario=default source=stacktrace

k6 version

v0.48.0

OS

linux ubuntu 22

Docker version and image (if applicable)

latst Digest: sha256:4f9845e7f2efc9abdc3aba5d49e96fd6020ea167a722e0014e848409cc9cd4f5

Steps to reproduce the problem

# start server
git clone [email protected]:grafana/k6.git
go run -mod=mod examples/grpc_server/*.go

# test
k6 run examples/grpc_client_streaming.js

Expected behaviour

no error

Actual behaviour

get error

ERRO[0000] TypeError: Cannot read property 'name' of undefined
        at pointSender (file:///k6-master/examples/grpc_client_streaming.js:112:12(5))
        at file:///k6-master/examples/grpc_client_streaming.js:102:16(60)  executor=per-vu-iterations scenario=default 

[olegbespalov]

Hi @owanio1992

In the k6 v0.49, which just happened, the gRPC experimental module was graduated, and streams became part of the core.

The examples in git were updated since the change was merged. So if you update to the v0.49 you could import as:

import { Client, Stream } from 'k6/net/grpc';

However, the error doesn't seem related to imports 🤔

ERRO[0000] TypeError: Cannot read property 'name' of undefined
        at pointSender (file:///k6-master/examples/grpc_client_streaming.js:112:12(5))
        at file:///k6-master/examples/grpc_client_streaming.js:102:16(60)  executor=per-vu-iterations scenario=default source=stacktrace

seems like the pointSender picked the point from sample DB without the name property defined, which is weird.

Are you trying to run an unmodified version of the example?

[owanio1992]

I tried use v0.49.0
it's can work with

import { Client, Stream } from 'k6/net/grpc';

thank very much