B2B-88: add starter kit structure and elements

packages/supabase/src/get-supabase-client-keys.ts

@@ -0,0 +1,24 @@
+import { z } from 'zod';
+
+/**
+ * Returns and validates the Supabase client keys from the environment.
+ */
+export function getSupabaseClientKeys() {
+  return z
+    .object({
+      url: z.string({
+        description: `This is the URL of your hosted Supabase instance. Please provide the variable NEXT_PUBLIC_SUPABASE_URL.`,
+        required_error: `Please provide the variable NEXT_PUBLIC_SUPABASE_URL`,
+      }),
+      anonKey: z
+        .string({
+          description: `This is the anon key provided by Supabase. It is a public key used client-side. Please provide the variable NEXT_PUBLIC_SUPABASE_ANON_KEY.`,
+          required_error: `Please provide the variable NEXT_PUBLIC_SUPABASE_ANON_KEY`,
+        })
+        .min(1),
+    })
+    .parse({
+      url: process.env.NEXT_PUBLIC_SUPABASE_URL,
+      anonKey: process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY,
+    });
+}