feat: persist API keys across restarts via tauri-plugin-store

Keys are saved to keys.json in the app's private data directory
on both Linux and Android. load_keys is called on app mount to
restore them into NewsState before the first news fetch.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src-tauri/Cargo.toml

@@ -15,6 +15,7 @@ tauri-build = { version = "2", features = [] }
 [dependencies]
 tauri = { version = "2", features = [] }
 tauri-plugin-opener = "2"
+tauri-plugin-store = "2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 easy-nostr = { path = "./easy-nostr" }

src-tauri/capabilities/default.json

@@ -5,6 +5,7 @@
   "windows": ["main"],
   "permissions": [
     "core:default",
-    "opener:default"
+    "opener:default",
+    "store:default"
   ]
 }

src-tauri/src/lib.rs

@@ -5,16 +5,18 @@ mod news;
 pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
+        .plugin(tauri_plugin_store::Builder::default().build())
         // Registriert den Nostr-State
         .manage(news::NewsState::default())
         .invoke_handler(tauri::generate_handler![
             home::fetch_nostr_posts,
             news::save_openrouter_key,
+            news::save_groq_key,
+            news::load_keys,
             news::load_rss_config,
-            news::save_rss_urls, // Geändert von save_rss_url zu save_rss_urls
+            news::save_rss_urls,
             news::fetch_ai_news,
             news::fetch_rss_news,
-            news::save_groq_key,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

src-tauri/src/news.rs

@@ -3,6 +3,7 @@ use std::fs;
 use std::path::PathBuf;
 use std::sync::Mutex;
 use tauri::{AppHandle, Manager, State};
+use tauri_plugin_store::StoreExt;
 
 #[derive(Serialize, Deserialize, Default, Clone)]
 pub struct RssConfig {
@@ -114,16 +115,46 @@ fn default_feeds() -> Vec<RssFeed> {
 }
 
 #[tauri::command]
-pub async fn save_openrouter_key(key: String, state: State<'_, NewsState>) -> Result<(), String> {
-    let mut lock = state.openrouter_key.lock().map_err(|_| "Lock failed")?;
-    *lock = key.trim().to_string();
+pub async fn load_keys(app: AppHandle, state: State<'_, NewsState>) -> Result<(), String> {
+    let store = app.store("keys.json").map_err(|e| e.to_string())?;
+    if let Some(v) = store.get("openrouter_key") {
+        if let Some(k) = v.as_str() {
+            *state.openrouter_key.lock().unwrap() = k.to_string();
+        }
+    }
+    if let Some(v) = store.get("groq_key") {
+        if let Some(k) = v.as_str() {
+            *state.groq_key.lock().unwrap() = k.to_string();
+        }
+    }
     Ok(())
 }
 
 #[tauri::command]
-pub async fn save_groq_key(key: String, state: State<'_, NewsState>) -> Result<(), String> {
-    let mut lock = state.groq_key.lock().map_err(|_| "Lock failed")?;
-    *lock = key.trim().to_string();
+pub async fn save_openrouter_key(
+    key: String,
+    app: AppHandle,
+    state: State<'_, NewsState>,
+) -> Result<(), String> {
+    let trimmed = key.trim().to_string();
+    *state.openrouter_key.lock().map_err(|_| "Lock failed")? = trimmed.clone();
+    let store = app.store("keys.json").map_err(|e| e.to_string())?;
+    store.set("openrouter_key", trimmed);
+    store.save().map_err(|e| e.to_string())?;
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn save_groq_key(
+    key: String,
+    app: AppHandle,
+    state: State<'_, NewsState>,
+) -> Result<(), String> {
+    let trimmed = key.trim().to_string();
+    *state.groq_key.lock().map_err(|_| "Lock failed")? = trimmed.clone();
+    let store = app.store("keys.json").map_err(|e| e.to_string())?;
+    store.set("groq_key", trimmed);
+    store.save().map_err(|e| e.to_string())?;
     Ok(())
 }
 

src/pages/news.rs

@@ -69,11 +69,12 @@ pub fn news() -> Html {
     let new_url_ref = use_node_ref();
     let new_cat_ref = use_node_ref();
 
-    // Init: RSS Feeds laden
+    // Init: Keys und RSS Feeds laden
     {
         let rss_feeds = rss_feeds.clone();
         use_effect_with((), move |_| {
             spawn_local(async move {
+                let _ = invoke("load_keys", JsValue::NULL).await;
                 if let Ok(res) = invoke("load_rss_config", JsValue::NULL).await {
                     if let Ok(feeds) = serde_wasm_bindgen::from_value::<Vec<RssFeed>>(res) {
                         rss_feeds.set(feeds);