Crate tracing_subscriber_wasm
source ·Expand description
A MakeWriter
implementation to allow directly using
tracing_subscriber
in the browser or with NodeJS.
The MakeConsoleWriter
allows mapping arbitrary trace events to
any other console verbosity level. Check out the
MakeConsoleWriter::map_trace_level_to
and similar methods when
building the writer.
Important Note
In my testing, if you don’t call .without_time
on the
subscriber builder, a runtime exception will be raised.
Example
use tracing_subscriber::fmt;
use tracing_subscriber_wasm::MakeConsoleWriter;
fmt()
.with_writer(
// To avoide trace events in the browser from showing their
// JS backtrace, which is very annoying, in my opinion
MakeConsoleWriter::default().map_trace_level_to(tracing::Level::DEBUG),
)
// For some reason, if we don't do this in the browser, we get
// a runtime error.
.without_time()
.init();
Structs
The type which is responsible for actually writing the tracing
event out to the console.
This is the main type that is passed to
with_writer
.Allows mapping
tracing::Level
events to a different
console level.