Add Node.js example

[GhassenRjab]

With this PR I add example app for Node.js.

The example is based on the Node.js app written in OpenTelemetry documentation (dice server)

Even though the OpenTelemetry lib for Logging in Node.js is still in development I use it in the example. It is working well

[CLAassistant]

All committers have signed the CLA.

[zeitlinger]

Thanks a lot for the contribution!

We try to make the simplest example possible, therefore: Have you considered using zero-code? https://opentelemetry.io/docs/zero-code/js/

[GhassenRjab]

Thank you for your feedback and the recommendation @zeitlinger!

I didn't know about the zero-code feature before.
As I was reading through its documentation, I saw it only support traces.
It means that I'll have to configure metrics and logs anyway.
I think it's not worth it. Can we keep the current implementation?

Also, I managed to reproduce the lint issues locally, and fixed them.

As of the OATS, I was unable to reproduce locally.
I made some changes and I hope they fix it.
But if they don't, can you guide me how to run/reproduce locally?

[zeitlinger]

Thank you for your feedback and the recommendation @zeitlinger!

I didn't know about the zero-code feature before. As I was reading through its documentation, I saw it only support traces. It means that I'll have to configure metrics and logs anyway. I think it's not worth it. Can we keep the current implementation?

... and I wasn't aware that the auto-instrumentation has this limitation 😄

Agree - let's keep this and maybe add an auto-instrumentation example later.

Also, I managed to reproduce the lint issues locally, and fixed them.

great

As of the OATS, I was unable to reproduce locally. I made some changes and I hope they fix it. But if they don't, can you guide me how to run/reproduce locally?

did you see https://github.com/grafana/docker-otel-lgtm/blob/main/CONTRIBUTING.md ?

[zeitlinger]

As of the OATS, I was unable to reproduce locally. I made some changes and I hope they fix it. But if they don't, can you guide me how to run/reproduce locally?

did you see https://github.com/grafana/docker-otel-lgtm/blob/main/CONTRIBUTING.md ?

I already saw a problem with a port - let's see if that fixes it

[zeitlinger]

I'm thinking that you need the protobuf port based on the dependencies

[zeitlinger]

Suggested change

	OTEL_EXPORTER_OTLP_ENDPOINT: http://lgtm:4317
	OTEL_EXPORTER_OTLP_ENDPOINT: http://lgtm:4318