What would be the best way to integrate Datadog APM tracing?

[theogravity]

According to:

https://docs.datadoghq.com/tracing/connect_logs_and_traces/nodejs/

To enable this feature, I'd have to wrap the record that writes out with the following:

        const span = tracer.scope().active();
        const time = new Date().toISOString();
        const record = { time, level, message };

        if (span) {
            tracer.inject(span.context(), formats.LOG, record);
        }

Based on reading the roarr docs, it seems I'd want to inject this in the child logger function / create middleware?

[gajus]

Depends. If you want all your logs (e.g. those included by some dependencies that use roarr) then your better option is to extend ROARR.write. Something like this:

import {
  ROARR,
} from 'roarr';

const main = () => {
  const oldWrite = ROARR.write;

  ROARR.write = (message) => {
    const span = tracer.scope().active();
    const time = new Date().toISOString();
    const record = { time, level, message };

    if (span) {
      tracer.inject(span.context(), formats.LOG, record);
    }

    oldWrite(message);
  };
};

If you only care about the logs produced directly by your application, then middleware is sufficient.

[theogravity]

Thank you!