Including tracing setup in all examples (#79)

README.md

@@ -33,6 +33,9 @@ use std::net::SocketAddr;
 
 #[tokio::main]
 async fn main() {
+    // initialize tracing
+    tracing_subscriber::fmt::init();
+
     // build our application with a route
     let app =
         // `GET /` goes to `root`

examples/error_handling_and_dependency_injection.rs

@@ -18,6 +18,8 @@ use uuid::Uuid;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // Inject a `UserRepo` into our handlers via a trait object. This could be
     // the live implementation or just a mock for testing.
     let user_repo = Arc::new(ExampleUserRepo) as DynUserRepo;

examples/form.rs

@@ -4,6 +4,8 @@ use std::net::SocketAddr;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // build our application with some routes
     let app = route("/", get(show_form).post(accept_form));
 

examples/hello_world.rs

@@ -3,6 +3,8 @@ use std::net::SocketAddr;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // build our application with a route
     let app = route("/", get(handler));
 

examples/sessions.rs

@@ -14,6 +14,8 @@ use uuid::Uuid;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // `MemoryStore` just used as an example. Don't use this in production.
     let store = MemoryStore::new();
 

examples/templates.rs

@@ -5,6 +5,8 @@ use std::net::SocketAddr;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // build our application with some routes
     let app = route("/greet/:name", get(greet));
 

examples/tls_rustls.rs

@@ -11,6 +11,8 @@ use tokio_rustls::{
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     let rustls_config = rustls_server_config(
         "examples/self_signed_certs/key.pem",
         "examples/self_signed_certs/cert.pem",

examples/tokio_postgres.rs

@@ -7,6 +7,8 @@ use tokio_postgres::NoTls;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // setup connection pool
     let manager =
         PostgresConnectionManager::new_from_stringlike("host=localhost user=postgres", NoTls)

examples/unix_domain_socket.rs

@@ -30,6 +30,8 @@ fn main() {
 #[cfg(unix)]
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     let path = PathBuf::from("/tmp/axum/helloworld");
 
     let _ = tokio::fs::remove_file(&path).await;

examples/versioning.rs

@@ -10,6 +10,8 @@ use std::net::SocketAddr;
 
 #[tokio::main]
 async fn main() {
+    tracing_subscriber::fmt::init();
+
     // build our application with some routes
     let app = route("/:version/foo", get(handler));