# Replay

The replay server can be used to replay pre-recorded matches or recently offered matches. You can replay all messages sent for a particular sport event (older than 48hrs) using the replay server. In general, the matches are replayable forever. However, Betradar reserves the right to remove events that are older than 2 years.

#### Scenarios <a href="#uofsdkreplay-scenarios" id="uofsdkreplay-scenarios"></a>

Using the replay server functionally is especially useful during the integration period. You can replay one or more sport events or one of the predefined scenarios (currently 3 are available). Scenarios are sets of sport-events/matches that are prepared by Betradar.&#x20;

Instead of adding individual matches, you can add a complete scenario. The sport-events in scenarios will be emitted faster since they are cached, and it is recommended that you use the scenarios for i.e. stress testing.

***Please note that***

* When using the replay server, invoking recovery requests is disabled
* No producer down/up in a replay session (no heartbeat checking is performed)
* The setting "DisabledProducers" is ignored.

#### **Configuration for Replay** <a href="#uofsdkreplay-configurationforreplay" id="uofsdkreplay-configurationforreplay"></a>

When integrating with UOF SDK user can use the "*UofSdkForReplay*" root object (instead of *UofSdk*) which provides the ReplayManager property through which the user can easily define what should be replayed.

{% tabs %}
{% tab title="Configuring UofSdkForReplay (java)" %}

```java
OddsFeedConfiguration configReplay = OddsFeed
            .getOddsFeedConfigurationBuilder()
            .setAccessToken(token)
            .selectReplay()
            .setSdkNodeId(123)
            .setDefaultLocale(Locale.ENGLISH)
            .setExceptionHandlingStrategy(ExceptionHandlingStrategy.Throw)
            .build();
 
ReplayOddsFeed replayFeed = new ReplayOddsFeed(new GlobalEventsListener(), config);
 
OddsFeedSessionBuilder sessionBuilder = replayFeed.getSessionBuilder();
sessionBuilder
            .setListener(new CustomMessageListener("LiveMessagesOnly", oddsFeed, config.getDesiredLocales()))
            .setMessageInterest(MessageInterest.LiveMessagesOnly)
            .build();
sessionBuilder
            .setListener(new CustomMessageListener("PrematchMessagesOnly", oddsFeed, config.getDesiredLocales()))
            .setMessageInterest(MessageInterest.PrematchMessagesOnly)
            .build();
 
logger.info("Feed open");
// Open the feed with all the built sessions
replayFeed.getReplayManager().stop();
replayFeed.getReplayManager().clear();
replayFeed.open();
         
boolean addResponse = replayFeed.getReplayManager().playScenario(1);
ReplayStatus replayStatus = replayFeed.getReplayManager().getPlayStatus();
writeReplayStatus(replayStatus, logger);
 
List<SportEvent> queueEvents = replayFeed.getReplayManager().getReplayList();
logger.info("Currently {} items in queue.", queueEvents.size());
 
// wait till all feed messages are processed. Let's sleep awhile (30 minutes) and see what gets printed.
Thread.sleep(1000 * 60 * 30L);
 
replayFeed.close();
logger.info("Feed close");
```

{% endtab %}

{% tab title="Configuring UofSdkForReplay (.Net)" %}

```java
var _config = UofSdk.GetConfigurationBuilder().SetAccessToken(token).SelectReplay().LoadFromConfigFile().SetSupportedLanguages(supportedCultures10).SetExceptionHandlingStrategy(ExceptionHandlingStrategy.Throw).Build();
 
_log.LogInformation("Creating UofSdk instance");
_replayFeed = new UofSdkForReplay(_config, _loggerFactory, _metricsRoot);
 
_log.LogInformation("Creating UofSession");
var session = _replayFeed.CreateBuilder().SetMessageInterest(messageInterest).Build();
_log.LogInformation("Attaching to uof sdk events");
AttachToFeedEvents(_replayFeed);
AttachToSessionEvents(session);
 
_log.LogInformation("Opening the UofSdk instance");
_replayFeed.Open();
 
_log.LogInformation("Stop and clear replay.");
WriteReplayResponse(replayFeed.ReplayManager.StopAndClearReplay());
var replayStatus = replayFeed.ReplayManager.GetStatusOfReplay();
WriteReplayStatus(replayStatus);
var queueEvents = replayFeed.ReplayManager.GetEventsInQueue();
_log.LogInformation($"Currently {queueEvents.Count()} items in replay queue.");
 
// add events for replaying
WriteReplayResponse(replayFeed.ReplayManager.AddMessagesToReplayQueue(Urn.Parse("sr:match:123456")));
WriteReplayResponse(replayFeed.ReplayManager.AddMessagesToReplayQueue(Urn.Parse("sr:stage:333333")));
 
// start replaying (after feed messages are created on server, the messages will come via same event handlers as it would on normal integration or production server)
WriteReplayResponse(replayFeed.ReplayManager.StartReplay(100, 100));
 
// wait till all feed messages are processed
Console.Readline();
 
// close UofSdk instance
_log.LogInformation("Stopping replay");
_replayFeed.ReplayManager.StopReplay();
 
_log.LogInformation("Closing / disposing the feed");
_replayFeed.Close();
 
DetachFromFeedEvents(_replayFeed);
DetachFromSessionEvents(session);
```

{% endtab %}
{% endtabs %}