After snippet inject, should we apply setting a flag

[oliver-zhang]

Consider the follows :

1. I want to know which inject work (nginx/otel)
2. I want to config nginx inject snippet, but i don't know whether this request have already injected by otel

If we setting a flag after snippet inject, that will be very useful

[mateuszrzeszutek]

I'm not sure what kind of flag you want to set; isn't the presence of the injected element enough?

[oliver-zhang]

I'm not sure what kind of flag you want to set; isn't the presence of the injected element enough?

Response Header

   wrapper.addHeader("otel-snippet-inject","true")

After set that , user can check this header when use nginx inject

[mateuszrzeszutek]

Hmm, I see -- you have similar logic in some nginx module and you want to avoid adding the snippet twice.

@siyuniu-ms @trask please take a look at this

[oliver-zhang]

@siyuniu-ms @trask Please take a look at this