1 files changed, 10 insertions, 0 deletions
diff --git a/u/process/env.ts b/u/process/env.ts
new file mode 100644
index 0000000..e80ec4a
--- /dev/null
+++ b/u/process/env.ts
@@ -0,0 +1,10 @@
+import { Either, type IEither } from "@emprespresso/utils";
+
+export const getRequiredEnv = (name: string): IEither<Error, string> =>
+  Either.fromFailable(() => {
+    const value = Deno.env.get(name); // could throw when no permission.
+    if (!value) {
+      throw new Error(`environment variable "${name}" is required D:`);
+    }
+    return value;
+  });