Using .env for secrets #4

src/lib/env.ts

@@ -0,0 +1,32 @@
+export function env(name: string): string | undefined {
+  return process.env[name];
+}
+
+export function envEnsure(name: string): string {
+  const v = process.env[name];
+
+  if (v === undefined) {
+    throw new Error(
+      `Environment variable '${name}' is required but doesn't exist`
+    );
+  }
+
+  return v;
+}
+
+export function envNumber(name: string): number | undefined {
+  const v = process.env[name];
+  return v ? parseInt(v) : undefined;
+}
+
+export function envNumberEnsure(name: string): number {
+  const v = process.env[name];
+
+  if (v === undefined) {
+    throw new Error(
+      `Environment variable '${name}' is required but doesn't exist`
+    );
+  }
+
+  return parseInt(v);
+}