functional tracing

src/routes/mod.rs

@@ -1 +1 @@
-pub mod pdf;
+pub mod pdf;

src/routes/pdf.rs

@@ -4,10 +4,11 @@ use std::io::prelude::*;
 
 use headless_chrome::Browser;
 use headless_chrome::{types::PrintToPdfOptions, LaunchOptions};
-use log::error;
 use rocket::{get, Response, futures::Stream, tokio::net::UnixStream, fs::NamedFile};
+use tracing::{info_span, debug, info};
 
 use crate::chromium::rocket::BrowserHolder;
+use crate::tools::rocket::TracingSpan;
 
 fn generate_pdf(browser: Browser) {
     let tab = browser.new_tab().unwrap();
@@ -35,8 +36,19 @@ fn generate_pdf(browser: Browser) {
 }
 
 #[get("/cv/<username>/pdf")]
-pub async fn render_pdf_cv(username: &str, browser: BrowserHolder) -> NamedFile { 
+pub async fn render_pdf_cv(username: &str, browser: BrowserHolder, tracing: TracingSpan) -> NamedFile { 
+    let entered_span = tracing.0.enter();
+    tracing.0.record(
+        "username",
+        username
+    );
+    let span = info_span!("render_pdf", username = username);
+    let entered_inner_span = span.enter();
+    info!("generate PDF");
     generate_pdf(browser.browser);
+    info!("done generating");
+    drop(entered_inner_span);
+    drop(entered_span);
     "foo!".to_string();
     NamedFile::open("/tmp/foo.pdf").await.expect("failed to open foo.pdf")
 }