Twil3akine · Twil3akine · Aug 15, 2025 · Aug 13, 2025 · Aug 13, 2025 · Aug 14, 2025
diff --git a/backend/Cargo.lock b/backend/Cargo.lock
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
@@ -10,7 +10,10 @@ http = "1.3.1"
 chrono = "0.4.41"
 url = "2.2"
 rand = "0.8"
+serde = { "version" = "1.0", features = ["derive"] }
+reqwest = "0.12.23"
+serde_json = "1.0.142"
 
 [dev-dependencies]
 tokio = { version = "1", features = ["full"] }
-rand = "0.8"
+rand = "0.8"
diff --git a/backend/src/api/mod.rs b/backend/src/api/mod.rs
@@ -0,0 +1,23 @@
+use serde::Deserialize;
+use std::{error::Error, marker::Sync};
+
+#[derive(Debug, Deserialize)]
+pub struct Problem {
+    pub id: String,
+    pub contest_id: String,
+    pub title: String,
+}
+
+pub async fn fetch_problem() -> Result<Vec<Problem>, Box<dyn Error + Send + Sync>> {
+    let url = "https://kenkoooo.com/atcoder/resources/problems.json";
+
+    // reqwest::Clientを作成し、User-Agentヘッダーを追加
+    let client = reqwest::Client::builder()
+        .user_agent("atcoder-random-picker/0.1") // 任意の名前やバージョンを指定
+        .build()?;
+
+    let text = client.get(url).send().await?.text().await?;
+    let problem: Vec<Problem> = serde_json::from_str(&text)?;
+
+    Ok(problem)
+}
diff --git a/backend/src/data/problem-models.json b/backend/src/data/problem-models.json
diff --git a/backend/src/data/problems.json b/backend/src/data/problems.json
diff --git a/backend/src/lib.rs b/backend/src/lib.rs
@@ -1,3 +1,4 @@
 pub mod routing;
+pub mod api;
 
 pub use routing::router;
diff --git a/frontend/index.html b/frontend/index.html
@@ -2,9 +2,8 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Vite + Svelte + TS</title>
+    <title>AtCoder Random Picker</title>
   </head>
   <body>
     <div id="app"></div>

diff --git a/frontend/src/output.css b/frontend/src/output.css
@@ -405,10 +405,6 @@
     font-size: var(--text-xl);
     line-height: var(--tw-leading, var(--text-xl--line-height));
   }
-  .text-xs {
-    font-size: var(--text-xs);
-    line-height: var(--tw-leading, var(--text-xs--line-height));
-  }
   .leading-none {
     --tw-leading: 1;
     line-height: 1;