feat: modular domain driven boilerplate

platform/config/service.ts

@@ -0,0 +1,19 @@
+import { getDotEnvVariable } from "./dotenv.ts";
+
+export const SERVICE_ENV = ["testing", "local", "stg", "demo", "prod"] as const;
+
+/**
+ * TODO ...
+ */
+export function getServiceEnvironment(): ServiceEnvironment {
+  const value = getDotEnvVariable("SERVICE_ENV");
+  if (value === undefined) {
+    return "local";
+  }
+  if ((SERVICE_ENV as unknown as string[]).includes(value) === false) {
+    throw new Error(`Config Exception: Invalid env ${value} provided`);
+  }
+  return value as ServiceEnvironment;
+}
+
+export type ServiceEnvironment = (typeof SERVICE_ENV)[number];