Added a Redis/Valkey extension named redis. (0.42.0)

examples/extensions/redis/kv_set_get.fun

@@ -0,0 +1,37 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2026-06-03
+ */
+
+/*
+ * Simple Redis test using Fun builtins backed by hiredis. 
+ *
+ * Simple key/value set-get-delete
+ */
+
+h = redis_connect('127.0.0.1', 6379)
+key = 'fun:examples:redis:key'
+
+// Clean slate
+_ = redis_cmd(h, 'DEL ' + key)
+
+// Set and get
+print(redis_cmd(h, 'SET ' + key + ' 42'))
+print('GET -> ' + redis_cmd(h, 'GET ' + key))
+
+// Check existence
+print('EXISTS -> ' + to_string(redis_cmd(h, 'EXISTS ' + key)))
+
+// Delete
+print('DEL -> ' + to_string(redis_cmd(h, 'DEL ' + key)))
+print('EXISTS(after DEL) -> ' + to_string(redis_cmd(h, 'EXISTS ' + key)))
+
+redis_close(h)