Rename default fields (tracing_subscriber, json).

[BratSinot]

Greetings!

Any way to rename default fields, such as timestamp, target?

// will get: {"timestamp":"2022-05-10T08:59:37.65384Z","level":"INFO","message":"Message","target":"playground"}
// want something like: {"time":"2022-05-10T08:59:37.65384Z","level":"INFO","msg":"Message","name":"playground"}
info!("Message");

#[inline(always)]
fn init_tracing() {
    fmt()
        .json()
        .with_timer::<_>(UtcTime::rfc_3339())
        .flatten_event(true)
        .with_target(true)
        .with_current_span(true)
        .with_env_filter("trace")
        .with_filter_reloading()
        .with_span_events(FmtSpan::ACTIVE)
        .init();
}

[davidbarsky]

You can't, unfortunately. You might need to write your own Layer to do that. Can I ask why you're interesting in renaming these fields?

[BratSinot]

Can I ask why you're interesting in renaming these fields?

In the place where I work, we have some components with different fields names in log, and we want to unify them.