Add OTLP JSON payload examples

[joaopgrassi]

Fixes #462

I was not sure where to add the files, so I just went with some initial idea. I'm open to suggestions on where to put them/refer to them.

I tested it with a local collector and all works.

cc @tigrannajaryan

[bogdandrutu]

Because I know that we will do manual work here withe these examples. should we have at least a check that they are valid JSONs?

[tigrannajaryan]

Yes more checks would be useful. Related: we have a PR coming that adds link checking: #459

[joaopgrassi]

I was also thinking if we shouldn't publish a json schema for OTLP. That way the guess work of writing OTLP JSON is removed and we could also check it against the schema in a gh action. I saw some tool to generate JSON schema from proto files but didn't have time to check. If you think it's valid, I can create issues and maybe work on it.

[tigrannajaryan]

I was also thinking if we shouldn't publish a json schema for OTLP. That way the guess work of writing OTLP JSON is removed and we could also check it against the schema in a gh action. I saw some tool to generate JSON schema from proto files but didn't have time to check. If you think it's valid, I can create issues and maybe work on it.

I would not want to maintain another schema definition. The Protobuf definitions are the source of truth. If we could generate JSON schema from Protobufs that would be great.

[tigrannajaryan]

Merging. @joaopgrassi it would be great if you could follow up with a PR to add JSON checks.

[joaopgrassi]

Will do!

[chalin]

Hi all, I've posted a suggestion to:

• Move examples out of spec into an examples folder #471

Comments are welcome.