[Feature]: opentelemetry-semantic-conventions ability to directly use semantic attribute constants in tracing::Span.record

[pitoniak32]

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Related Problems?

I have been searching for the best way to use the semantic attribute constants when creating spans without manually typing out the values in the span macro.

I have only been able to get my desired behavior by manually typing the keys:

tracing::info_span!(
    "request",
    http.request.method = request.method().to_string(),
    http.route = matched_path,
    http.response.status_code = Empty,
    url.path = request.uri().path(),
    url.query = request.uri().query(),
    network.protocol.name = version.get(0).map(|v| v.to_lowercase()),
    network.protocol.version = version.get(1),
)

I would ideally like to be able to use the available attribute constants when creating a span, so that if one of the conventions is deprecated I will see when I update. But I know it would require updates to the tracing macros.

ex:

tracing::info_span!("request", HTTP_REQUEST_METHOD = request.method().to_string())

Describe the solution you'd like:

I guess the solution I am looking for would be a recommended way to leverage the constants when creating spans. Or maybe some examples of how the attributes should be used.

Considered Alternatives

No response

Additional Context

No response

[lalitb]

Specifying constants as field names - I believe this is valid question, probably better to be asked in the tokio tracing repo? There are no examples with tracing integration in this repo for reason mentioned here - https://github.com/open-telemetry/opentelemetry-rust/issues/1571.

Just to add, regarding HTTP semantic conventions (as you added that in example), these semantic conventions are stable , and so won't get deprecated in future.

[pitoniak32]

Specifying constants as field names - I believe this is valid question, probably better to be asked in the tokio tracing repo? There are no examples with tracing integration in this repo for reason mentioned here - #1571.

Just to add, regarding HTTP semantic conventions (as you added that in example), these semantic conventions are stable , and so won't get deprecated in future.

Thank you for the reply! That makes sense, I will close this issue.

Also just in case someone else stumbles on this, I found a solution that works for creating new spans. but not for tracing::info!(...), etc

tracing::info_span!("request", { HTTP_REQUEST_METHOD } = request.method().to_string())