Best way to emit async network request every time a log is handled?

[ewoolsey]

My logs need to be send to a server in real time. Basically every event needs to run an async fn which sends off the formatted logs. Is there a non hacky way to do this?

[davidbarsky]

I'm not sure what you might consider to be a "hacky way", but the general approach would be to send the formatted event over a channel where the receiver runs on a spawned task. That task would be responsible for running said async fn.

[hawkw]

This is the correct approach. Since a tracing event may be emitted from a synchronous or asynchronous function, the Subscriber::event method may not be async. Instead, a channel should be used to bridge between the synchronous Subscriber callback and an asynchronous task for publishing log events. See Tokio's documentation on bridging between synchronous and asynchronous code for details.