Add settings module

Author: davidsteiner

src/bin/serverless.rs

@@ -12,9 +12,8 @@ async fn main() -> Result<()> {
         .json()
         .init();
     let settings = envy::from_env::<Settings>()?;
-    let table_name = settings.table_name.expect("table name to be specified");
 
-    let repository = Arc::new(DynamoDbRepository::new(table_name).await);
+    let repository = Arc::new(DynamoDbRepository::new(settings.table_name).await);
     let app = build_app(repository)?;
     poem_lambda::run(app).await.expect("app to start correctly");
 

src/lib.rs

@@ -2,3 +2,4 @@ pub mod api;
 pub mod repository;
 
 mod error;
+pub mod settings;

src/settings.rs

@@ -0,0 +1,7 @@
+use serde::Deserialize;
+
+#[derive(Debug, Deserialize)]
+pub struct Settings {
+    #[serde(default)]
+    pub table_name: String,
+}