Get items from Arcade Shop

.gitignore

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+target
+node_modules
+.wrangler
+.dev.vars

Cargo.toml

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+[package]
+name = "arcade-monitor"
+version = "0.1.0"
+edition = "2021"
+authors = ["SkyfallWasTaken <mahadkalam1@proton.me>"]
+
+[package.metadata.release]
+release = false
+
+# https://github.com/rustwasm/wasm-pack/issues/1247
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+worker = "0.3"
+worker-macros = "0.3"
+console_error_panic_hook = { version = "0.1.1" }
+serde = { version = "1.0.203", features = ["derive"] }
+serde_json = "1.0.118"
+scraper = "0.19.0"
+
+# We don't use getrandom, but we enable the "js" feature to enable
+# WebAssembly support.
+getrandom = { version = "0.2", features = ["js"] }

src/lib.rs

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+use scraper::{Html, Selector};
+use serde::{Deserialize, Serialize};
+use worker::*;
+
+#[event(fetch, respond_with_errors)]
+pub async fn main(req: Request, env: Env, _ctx: worker::Context) -> Result<Response> {
+    console_error_panic_hook::set_once();
+
+    let router = Router::new();
+
+    router
+        .on_async("/", |_req, ctx| async move {
+            let body = "Hello, World!";
+
+            run_scrape(ctx.env).await?;
+
+            Response::ok(body)
+        })
+        .run(req, env)
+        .await
+}
+
+#[derive(Serialize, Deserialize)]
+struct ShopItem {
+    #[serde(rename = "Name")]
+    name: String,
+
+    #[serde(rename = "Small Name")]
+    small_name: Option<String>,
+
+    #[serde(rename = "Description")]
+    description: Option<String>,
+
+    #[serde(rename = "Fulfillment Description")]
+    fulfillment_description: Option<String>,
+
+    #[serde(rename = "Cost Hours")]
+    price: i32,
+}
+
+async fn run_scrape(env: Env) -> Result<()> {
+    let shop_url = Url::parse(&env.var("ARCADE_SHOP_URL")?.to_string())?;
+    let mut response = Fetch::Url(shop_url).send().await?;
+
+    let doc_html = response.text().await?;
+    let doc = Html::parse_document(&doc_html);
+    let selector = Selector::parse("#__NEXT_DATA__").unwrap();
+    let json: serde_json::Value =
+        serde_json::from_str(&doc.select(&selector).next().unwrap().inner_html())?;
+
+    let available_items: Vec<ShopItem> = serde_json::from_value(
+        json.pointer("/props/pageProps/availableItems")
+            .expect("availableItems not found - is the ARCADE_SHOP_URL correct?")
+            .clone(),
+    )?;
+
+    for item in available_items {
+        let item_name = item.small_name.unwrap_or(item.name.clone());
+        let item_description = item
+            .description
+            .unwrap_or(item.fulfillment_description.unwrap_or("".to_string()));
+        let item_price = item.price;
+
+        let message = format!("{}: {} - ${}", item_name, item_description, item_price);
+        console_debug!("{message}");
+    }
+
+    Ok(())
+}

wrangler.toml

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+name = "arcade-monitor"
+main = "build/worker/shim.mjs"
+compatibility_date = "2024-06-29"
+
+[build]
+command = "cargo install worker-build && worker-build --release"
+
+[triggers]
+crons = ["0 * * * *"] # Run every hour
+
+[vars]
+ARCADE_SHOP_URL = "https://hackclub.com/arcade/shop/"