From 8b8a23accb4fb1d05c8dbad10faaaf0dbdeca9f8 Mon Sep 17 00:00:00 2001
From: Baptiste Arnaud <contact@baptiste-arnaud.fr>
Date: Tue, 3 Oct 2023 16:12:04 +0200
Subject: [PATCH] :technologist: Improve invalid environment variable insight
 on build fail

---
 packages/env/env.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/env/env.ts b/packages/env/env.ts
index 072db6d20c..5cbe00baf8 100644
--- a/packages/env/env.ts
+++ b/packages/env/env.ts
@@ -325,6 +325,17 @@ export const env = createEnv({
     ...posthogEnv.runtimeEnv,
   },
   skipValidation: typeof window !== 'undefined' && window.__ENV === undefined,
+  onValidationError(error) {
+    console.error(
+      '❌ Invalid environment variables:',
+      error.flatten().fieldErrors
+    )
+    throw new Error(
+      `Invalid environment variables: ${JSON.stringify(
+        error.flatten().fieldErrors
+      )}`
+    )
+  },
   onInvalidAccess: (variable: string) => {
     throw new Error(
       `❌ Attempted to access a server-side environment variable on the client: ${variable}`