env example added

.env.example

@@ -0,0 +1,20 @@
+# .env
+
+# clerk publishable key
+EXPO_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_test_YOUR_KEY_HERE
+
+# postgres db url (neon db) 
+DATABASE_URL="postgresql://username:password@hostname:port/uber-clone?sslmode=require"
+
+# expo api server url (you can set it to any random url for development)
+EXPO_PUBLIC_SERVER_URL="https://example.com/"
+
+# geoapify api key
+EXPO_PUBLIC_GEOAPIFY_API_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+# google api key
+EXPO_PUBLIC_GOOGLE_API_KEY=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+
+# stripe api key
+EXPO_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_YOUR_KEY_HERE
+STRIPE_SECRET_KEY=sk_test_YOUR_KEY_HERE