feat(redis_client): add ttl to set (#1298)

packages/redis_client/lib/src/redis_client.dart

@@ -170,8 +170,19 @@ class RedisClient {
   /// Set the value of a key.
   /// Equivalent to the `SET` command.
   /// https://redis.io/commands/set
-  Future<void> set({required String key, required String value}) {
-    return execute(['SET', key, value]);
+  ///
+  /// If [ttl] is provided, the key will expire after the specified duration.
+  Future<void> set({
+    required String key,
+    required String value,
+    Duration? ttl,
+  }) {
+    return execute([
+      'SET',
+      key,
+      value,
+      if (ttl != null) ...['EX', ttl.inSeconds],
+    ]);
   }
 
   /// Gets the value of a key.

packages/redis_client/test/src/redis_client_test.dart

@@ -183,6 +183,8 @@ void main() {
       test('completes', () async {
         const key = 'key';
         const value = 'value';
+        const ttl = Duration(seconds: 1);
+
         await expectLater(client.get(key: key), completion(isNull));
         await expectLater(client.set(key: key, value: value), completes);
         await expectLater(client.get(key: key), completion(equals(value)));
@@ -194,6 +196,13 @@ void main() {
         await expectLater(client.get(key: key), completion(equals(value)));
         await expectLater(client.unlink(key: key), completes);
         await expectLater(client.get(key: key), completion(isNull));
+        await expectLater(
+          client.set(key: key, value: value, ttl: ttl),
+          completes,
+        );
+        await expectLater(client.get(key: key), completion(equals(value)));
+        await Future<void>.delayed(ttl);
+        await expectLater(client.get(key: key), completion(isNull));
       });
 
       test(