From 871020b3f30ed5729df2fa65042bb0b95d3b6b88 Mon Sep 17 00:00:00 2001
From: ZJZR <didiersimon746@gmail.com>
Date: Tue, 20 Jan 2026 19:58:29 +0100
Subject: [PATCH] Add environment constants for client configuration

Introduces shared constants for supported Kalshi environments to avoid hardcoded strings.
---
 kalshi_client/constants.py | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 kalshi_client/constants.py

diff --git a/kalshi_client/constants.py b/kalshi_client/constants.py
new file mode 100644
index 00000000..73c05ced
--- /dev/null
+++ b/kalshi_client/constants.py
@@ -0,0 +1,11 @@
+"""
+Shared constants used across the Kalshi client.
+"""
+
+ENV_DEMO = "demo"
+ENV_PROD = "prod"
+
+SUPPORTED_ENVIRONMENTS = {
+    ENV_DEMO,
+    ENV_PROD,
+}