start implementing the periphery client

core/src/auth/jwt.rs

@@ -33,7 +33,8 @@ pub struct JwtClient {
 
 impl JwtClient {
     pub fn extension(config: &CoreConfig) -> JwtExtension {
-        let key = Hmac::new_from_slice(config.jwt_secret.as_bytes()).unwrap();
+        let key = Hmac::new_from_slice(config.jwt_secret.as_bytes())
+            .expect("failed at taking HmacSha256 of jwt secret");
         let client = JwtClient {
             key,
             valid_for_ms: get_timelength_in_ms(config.jwt_valid_for),

core/src/config.rs

@@ -11,8 +11,19 @@ use dotenv::dotenv;
 use mungos::{Deserialize, Mungos};
 use types::CoreConfig;
 
+#[derive(Deserialize, Debug)]
+struct Env {
+    #[serde(default = "default_config_path")]
+    pub config_path: String,
+}
+
 pub fn load() -> CoreConfig {
-    let config_path = env::var("CONFIG_PATH").unwrap_or("./config.json".to_string());
-    let file = File::open(config_path).expect("failed to open config file");
+    dotenv().ok();
+    let env: Env = envy::from_env().expect("failed to parse environment variables");
+    let file = File::open(&env.config_path).expect("failed to open config file");
     serde_json::from_reader(file).unwrap()
 }
+
+pub fn default_config_path() -> String {
+    "./config.json".to_string()
+}

core/src/main.rs

@@ -28,5 +28,5 @@ async fn main() {
     axum::Server::bind(&get_socket_addr(&config))
         .serve(app.into_make_service())
         .await
-        .expect("server crashed");
+        .expect("monitor core axum server crashed");
 }