Extract rust snippets and reference them

snippets/rust/src/lnurl_withdraw.rs

@@ -0,0 +1,19 @@
+use std::sync::Arc;
+
+use anyhow::Result;
+use breez_sdk_core::*;
+
+async fn withdraw(sdk: Arc<BreezServices>) -> Result<()> {
+    // Endpoint can also be of the form:
+    // lnurlw://domain.com/lnurl-withdraw?key=val
+    let lnurl_withdraw_url = "lnurl1dp68gurn8ghj7mr0vdskc6r0wd6z7mrww4exctthd96xserjv9mn7um9wdekjmmw843xxwpexdnxzen9vgunsvfexq6rvdecx93rgdmyxcuxverrvcursenpxvukzv3c8qunsdecx33nzwpnvg6ryc3hv93nzvecxgcxgwp3h33lxk";
+
+    if let Ok(LnUrlWithdraw{data: wd}) = parse(lnurl_withdraw_url).await {
+        let amount_msat = wd.min_withdrawable;
+        let description = "Test withdraw".to_string();
+
+        sdk.lnurl_withdraw(wd, amount_msat, Some(description)).await?;
+    }
+
+    Ok(())
+}