#[pre_upgrade] #[trace] fn pre_upgrade() { ... some json files ... // save to db let json = serde_json::to_string(&payload).unwrap(); ic_cdk::println!( "\x1b[31m SAVING THE PAYLOAD INTO STABLE STUCTURE: \x1b[0m \n {}", json ); let mut memory = get_upgrad…

ok. since this situation. i can try to use http outcalls to save the info into a web2 server for debugging.

I would (and have in the past) personally simply write a crappy ring buffer log that you can query later. Outcalls are very expensive ‘just’ for logging

Wahoo . That will be great! Thank you so much for your reply. So, i should goto Canister Logging Support [Community Consideration] or somewhere you mentioned to get the ring buffer log maybe ?

Hello! While the mentioned feature is under development, you can give canistergeek.app a try ( rust library ).

What I meant was to roll your own. E.g: let log: Vec<String> = Vec::new(); fn log(text: String) { log.push(text); if log.len() > 10 { log.remove(0); } }

Is it possible to get the ic_cdk::println!() data when i exec ` dfx deploy backend --verbose --network ic`

Developers

Vivienne January 22, 2024, 9:41am 2

There’s currently no way to get those printlns. This is in the works: Canister Logging Support [Community Consideration]

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Is it possible to get the ic_cdk::println!() data when i exec ` dfx deploy backend --verbose --network ic`

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