Snapshow of match variant.

examples/smoke-test/main.rs

@@ -1,11 +1,11 @@
-use std::io::{self, BufRead, BufReader, Read};
+use std::io::{self, BufRead, BufReader, Read, Write};
 use std::sync::{Arc, Mutex};
 use std::thread::{self, JoinHandle};
 use std::time::Duration;
-use std::{env, error, fmt, result};
+use std::{env, error, fmt, result, result::Result};
 
 use log::{error, info};
-use ureq;
+use ureq::{self, Response};
 
 #[derive(Debug)]
 struct Oops(String);
@@ -40,12 +40,36 @@ fn get(agent: &ureq::Agent, url: &str) -> Result<Vec<u8>> {
     Ok(bytes)
 }
 
-fn get_and_write(agent: &ureq::Agent, url: &str) {
+fn get_and_write(agent: &ureq::Agent, url: &str) -> std::result::Result<(), Oops> {
-    info!("🕷️ {}", url);
+    let r = get_response(agent, url)?;
-    match get(agent, url) {
+    let mut reader = r.into_reader();
-        Ok(_) => info!("✔️ {}", url),
+    let mut bytes = vec![];
-        Err(e) => error!("⚠️ {} {}", url, e),
+    reader.read_to_end(&mut bytes)?;
+    std::io::stdout().write_all(&bytes)?;
+    Ok(())
 }
+
+fn get_response(agent: &ureq::Agent, url: &str) -> result::Result<Response, ureq::Error> {
+    let fetch = || agent.get(url).call();
+    let mut result = fetch();
+    for _ in 1..4 {
+        match result {
+            Err(ureq::Error {
+                response: Some(r), ..
+            }) if r.status() == 429 => {
+                let retry: u64 = r
+                    .header("retry-after")
+                    .and_then(|h| h.parse().ok())
+                    .unwrap_or(5);
+                eprintln!("403: {}", r.into_string()?);
+                thread::sleep(Duration::from_secs(retry));
+            }
+            r => return r,
+        }
+        result = fetch();
+    }
+    println!("Failed after 5 tries: {:?}", &result);
+    result
 }
 
 fn get_many(urls: Vec<String>, simultaneous_fetches: usize) -> Result<()> {

src/error.rs

@@ -44,7 +44,7 @@ pub struct Error {
     message: Option<String>,
     url: Option<Url>,
     source: Option<Box<dyn error::Error + Send + Sync + 'static>>,
-    response: Option<Response>,
+    pub response: Option<Response>,
 }
 
 impl Display for Error {