Update creating-redis-service-containers.md (#22662)

Co-authored-by: hubwriter <hubwriter@github.com>

Author: ChoHadam

content/actions/using-containerized-services/creating-redis-service-containers.md

@@ -281,31 +281,40 @@ const redis = require("redis");
 // If REDIS_HOST is not set, the default host is localhost
 // If REDIS_PORT is not set, the default port is 6379
 const redisClient = redis.createClient({
-  host: process.env.REDIS_HOST,
-  port: process.env.REDIS_PORT
+  url: `redis://${process.env.REDIS_HOST}:${process.env.REDIS_PORT}`
 });
 
-redisClient.on("error", function(err) {
-    console.log("Error " + err);
-});
-
-// Sets the key "octocat" to a value of "Mona the octocat"
-redisClient.set("octocat", "Mona the Octocat", redis.print);
-// Sets a key to "octocat", field to "species", and "value" to "Cat and Octopus"
-redisClient.hset("species", "octocat", "Cat and Octopus", redis.print);
-// Sets a key to "octocat", field to "species", and "value" to "Dinosaur and Octopus"
-redisClient.hset("species", "dinotocat", "Dinosaur and Octopus", redis.print);
-// Sets a key to "octocat", field to "species", and "value" to "Cat and Robot"
-redisClient.hset(["species", "robotocat", "Cat and Robot"], redis.print);
-// Gets all fields in "species" key
-
-redisClient.hkeys("species", function (err, replies) {
+redisClient.on("error", (err) => console.log("Error", err));
+
+(async () => {
+  await redisClient.connect();
+
+  // Sets the key "octocat" to a value of "Mona the octocat"
+  const setKeyReply = await redisClient.set("octocat", "Mona the Octocat");
+  console.log("Reply: " + setKeyReply);
+  // Sets a key to "species", field to "octocat", and "value" to "Cat and Octopus"
+  const SetFieldOctocatReply = await redisClient.hSet("species", "octocat", "Cat and Octopus");
+  console.log("Reply: " + SetFieldOctocatReply);
+  // Sets a key to "species", field to "dinotocat", and "value" to "Dinosaur and Octopus"
+  const SetFieldDinotocatReply = await redisClient.hSet("species", "dinotocat", "Dinosaur and Octopus");
+  console.log("Reply: " + SetFieldDinotocatReply);
+  // Sets a key to "species", field to "robotocat", and "value" to "Cat and Robot"
+  const SetFieldRobotocatReply = await redisClient.hSet("species", "robotocat", "Cat and Robot");
+  console.log("Reply: " + SetFieldRobotocatReply);
+
+  try {
+    // Gets all fields in "species" key
+    const replies = await redisClient.hKeys("species");
     console.log(replies.length + " replies:");
-    replies.forEach(function (reply, i) {
+    replies.forEach((reply, i) => {
         console.log("    " + i + ": " + reply);
     });
-    redisClient.quit();
-});
+    await redisClient.quit();
+  }
+  catch (err) {
+    // statements to handle any exceptions
+  }
+})();
 ```
 
 The script creates a new Redis client using the `createClient` method, which accepts a `host` and `port` parameter. The script uses the `REDIS_HOST` and `REDIS_PORT` environment variables to set the client's IP address and port. If `host` and `port` are not defined, the default host is `localhost` and the default port is 6379.