[update] added JSON logging support with tracing-subscriber for production, updated dependencies in Cargo.toml and Cargo.lock

backend-rust/Cargo.lock

@@ -2279,6 +2279,16 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-serde"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "704b1aeb7be0d0a84fc9828cae51dab5970fee5088f83d1dd7ee6f6246fc6ff1"
+dependencies = [
+ "serde",
+ "tracing-core",
+]
+
 [[package]]
 name = "tracing-subscriber"
 version = "0.3.19"
@@ -2289,12 +2299,15 @@ dependencies = [
  "nu-ansi-term",
  "once_cell",
  "regex",
+ "serde",
+ "serde_json",
  "sharded-slab",
  "smallvec",
  "thread_local",
  "tracing",
  "tracing-core",
  "tracing-log",
+ "tracing-serde",
 ]
 
 [[package]]

backend-rust/Cargo.toml

@@ -12,7 +12,7 @@ serde_json = "1.0"
 sqlx = { version = "0.8", features = ["runtime-tokio", "tls-native-tls", "sqlite", "macros", "migrate", "chrono", "json"] }
 dotenv = "0.15"
 tracing = "0.1"
-tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
 toml = "0.9.5"
 
 [dev-dependencies]

backend-rust/src/main.rs

@@ -11,12 +11,15 @@ use axum::routing::get;
 use tokio::signal;
 use tracing::{info};
 use tracing_subscriber;
+use tracing_subscriber::EnvFilter;
 
 #[tokio::main]
 async fn main() -> Result<()> {
     tracing_subscriber::fmt()
         .with_target(false)
         .compact()
+        .with_env_filter(EnvFilter::from_default_env())
+        .json()  // For production
         .init();
 
     let app_settings = AppSettings::get_app_settings();