make scrape_expiries a API method and not an associated func

this is to fix uniffi complaint: associated methods not supported

src/api.rs

@@ -26,22 +26,6 @@ impl API {
         }
         Self { base: url, opts }
     }
-
-    pub fn scrape_expiries(url: Url) -> PbResult<Vec<String>> {
-        let client = reqwest::blocking::Client::new();
-        let response = client.get(url).send()?;
-        response.error_for_status_ref()?;
-        let html = response.text()?;
-        let document = Html::parse_document(&html);
-        let expiries_selector = Selector::parse("#expiration + ul > li > a").unwrap();
-        let mut expiries = Vec::new();
-        for expiry_anchor in document.select(&expiries_selector) {
-            if let Some(expiry) = expiry_anchor.attr("data-expiration") {
-                expiries.push(expiry.to_string());
-            }
-        }
-        Ok(expiries)
-    }
 }
 
 impl API {
@@ -224,6 +208,22 @@ impl API {
         }
     }
 
+    pub fn scrape_expiries(&self) -> PbResult<Vec<String>> {
+        let client = reqwest::blocking::Client::new();
+        let response = client.get(self.base()).send()?;
+        response.error_for_status_ref()?;
+        let html = response.text()?;
+        let document = Html::parse_document(&html);
+        let expiries_selector = Selector::parse("#expiration + ul > li > a").unwrap();
+        let mut expiries = Vec::new();
+        for expiry_anchor in document.select(&expiries_selector) {
+            if let Some(expiry) = expiry_anchor.attr("data-expiration") {
+                expiries.push(expiry.to_string());
+            }
+        }
+        Ok(expiries)
+    }
+
     pub fn base(&self) -> Url {
         self.base.clone()
     }

src/main.rs

@@ -172,8 +172,9 @@ fn handle_comment(opts: &Opts) -> PbResult<()> {
 }
 
 fn handle_scrape(opts: &Opts) -> PbResult<()> {
-    let url = opts.get_url().clone();
-    let expiries = API::scrape_expiries(url)?;
+    let url = opts.get_url();
+    let api = API::new(url.clone(), opts.clone());
+    let expiries = api.scrape_expiries()?;
     std::io::stdout().write_all(format!("{:?}", expiries).as_bytes())?;
     writeln!(std::io::stdout())?;
     Ok(())