From 3e3a4229a9fbe7d57b5600f655089e930e0f1227 Mon Sep 17 00:00:00 2001
From: Aleksei Gurianov <gurianov@gmail.com>
Date: Tue, 13 Aug 2024 23:12:51 +0300
Subject: [PATCH] Expose internal value for isServer

Fixes #258

Expose the internal value for `isServer` for reuse across the app.

* **packages/core/src/index.ts**
  - Add `isServer` property to the `CreateEnv` return type.
  - Update the `createEnv` function to include `isServer` in the proxy handler.
* **examples/astro/src/t3-env.ts**
  - Import `isServer` value from the `env` object.
* **examples/nextjs/app/env.ts**
  - Import `isServer` value from the `env` object.
* **examples/nuxt/env.ts**
  - Import `isServer` value from the `env` object.

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/t3-oss/t3-env/issues/258?shareId=XXXX-XXXX-XXXX-XXXX).
---
 examples/astro/src/t3-env.ts | 2 ++
 examples/nextjs/app/env.ts   | 2 ++
 examples/nuxt/env.ts         | 2 ++
 packages/core/src/index.ts   | 3 ++-
 4 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/examples/astro/src/t3-env.ts b/examples/astro/src/t3-env.ts
index 868e3eee..a6f0164b 100644
--- a/examples/astro/src/t3-env.ts
+++ b/examples/astro/src/t3-env.ts
@@ -15,3 +15,5 @@ export const env = createEnv({
   skipValidation: import.meta.env.SKIP_ENV_VALIDATION === "development",
   clientPrefix: "PUBLIC_",
 });
+
+const isServer = env.isServer;
diff --git a/examples/nextjs/app/env.ts b/examples/nextjs/app/env.ts
index ec089fe9..c2106415 100644
--- a/examples/nextjs/app/env.ts
+++ b/examples/nextjs/app/env.ts
@@ -18,3 +18,5 @@ export const env = createEnv({
   },
   extends: [vercel()],
 });
+
+const isServer = env.isServer;
diff --git a/examples/nuxt/env.ts b/examples/nuxt/env.ts
index ce3023f6..d91e381b 100644
--- a/examples/nuxt/env.ts
+++ b/examples/nuxt/env.ts
@@ -9,3 +9,5 @@ export const env = createEnv({
     NUXT_PUBLIC_GREETING: z.string(),
   },
 });
+
+const isServer = env.isServer;
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 72770be2..8eacbbd9 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -209,7 +209,7 @@ export type CreateEnv<
       TypeOf<ZodObject<TClient>> &
       TypeOf<ZodObject<TShared>> &
       UnReadonlyObject<Reduce<TExtends>>
-  >
+  > & { isServer: boolean }
 >;
 
 export function createEnv<
@@ -294,6 +294,7 @@ export function createEnv<
       if (typeof prop !== "string") return undefined;
       if (ignoreProp(prop)) return undefined;
       if (!isValidServerAccess(prop)) return onInvalidAccess(prop);
+      if (prop === "isServer") return isServer;
       return Reflect.get(target, prop);
     },
     // Maybe reconsider this in the future: