/// <summary>
/// Creates or updates a rule. Rules are enabled by default, or based on value of the
/// State parameter. You can disable a rule using <a>DisableRule</a>.
///
///
/// <para>
/// <b>Note:</b> When you create or update a rule, incoming events might not immediately
/// start matching to new or updated rules. Please allow a short period of time for changes
/// to take effect.
/// </para>
///
/// <para>
/// A rule must contain at least an EventPattern or ScheduleExpression. Rules with EventPatterns
/// are triggered when a matching event is observed. Rules with ScheduleExpressions self-trigger
/// based on the given schedule. A rule can have both an EventPattern and a ScheduleExpression,
/// in which case the rule will trigger on matching events as well as on a schedule.
/// </para>
///
/// <para>
/// <b>Note:</b> Most services in AWS treat : or / as the same character in Amazon Resource
/// Names (ARNs). However, CloudWatch Events uses an exact match in event patterns and
/// rules. Be sure to use the correct ARN characters when creating event patterns so that
/// they match the ARN syntax in the event you want to match.
/// </para>
/// </summary>
/// <param name="request">Container for the necessary parameters to execute the PutRule service method.</param>
///
/// <returns>The response from the PutRule service method, as returned by CloudWatchEvents.</returns>
/// <exception cref="Amazon.CloudWatchEvents.Model.ConcurrentModificationException">
/// This exception occurs if there is concurrent modification on rule or target.
/// </exception>
/// <exception cref="Amazon.CloudWatchEvents.Model.InternalException">
/// This exception occurs due to unexpected causes.
/// </exception>
/// <exception cref="Amazon.CloudWatchEvents.Model.InvalidEventPatternException">
/// The event pattern is invalid.
/// </exception>
/// <exception cref="Amazon.CloudWatchEvents.Model.LimitExceededException">
/// This exception occurs if you try to create more rules or add more targets to a rule
/// than allowed by default.
/// </exception>
public PutRuleResponse PutRule(PutRuleRequest request)
{
var marshaller = new PutRuleRequestMarshaller();
var unmarshaller = PutRuleResponseUnmarshaller.Instance;
return(Invoke <PutRuleRequest, PutRuleResponse>(request, marshaller, unmarshaller));
}
internal virtual PutRuleResponse PutRule(PutRuleRequest request)
{
var marshaller = PutRuleRequestMarshaller.Instance;
var unmarshaller = PutRuleResponseUnmarshaller.Instance;
return(Invoke <PutRuleRequest, PutRuleResponse>(request, marshaller, unmarshaller));
}
/// <summary>
/// Initiates the asynchronous execution of the PutRule operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the PutRule operation.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>The task object representing the asynchronous operation.</returns>
public Task <PutRuleResponse> PutRuleAsync(PutRuleRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new PutRuleRequestMarshaller();
var unmarshaller = PutRuleResponseUnmarshaller.Instance;
return(InvokeAsync <PutRuleRequest, PutRuleResponse>(request, marshaller,
unmarshaller, cancellationToken));
}
public string Update(Notification input, ILambdaContext context)
{
var region = RegionEndpoint.APSoutheast1;
//Update rule in CloudWatch Events
var cloudWatchEventClient = new AmazonCloudWatchEventsClient(region);
var putRuleRequest = new PutRuleRequest();
putRuleRequest.ScheduleExpression = input.Cron;
putRuleRequest.Name = $"testdonkey-rule-{ input.TopicId }";
putRuleRequest.State = RuleState.ENABLED;
var putRuleResponse = cloudWatchEventClient.PutRuleAsync(putRuleRequest).Result;
if (putRuleResponse.HttpStatusCode != HttpStatusCode.OK)
{
throw new TestDonkeyException("Can't update rule");
}
//Update notification in DynamoDB
var dynamoDBClient = new AmazonDynamoDBClient(region);
var key = new Dictionary <string, AttributeValue>();
key.Add("id", new AttributeValue()
{
S = input.TopicId
});
var updatedItem = new Dictionary <string, AttributeValueUpdate>();
updatedItem.Add("cron", new AttributeValueUpdate(new AttributeValue()
{
S = input.Cron
}, AttributeAction.PUT));
if (input.Messages == null || input.Messages.Count < 1)
{
updatedItem.Add("messages", new AttributeValueUpdate(null, AttributeAction.DELETE));
}
else
{
updatedItem.Add("messages", new AttributeValueUpdate(new AttributeValue()
{
SS = input.Messages
}, AttributeAction.PUT));
}
var putItemResponse = dynamoDBClient.UpdateItemAsync("Topics", key, updatedItem).Result;
if (putItemResponse.HttpStatusCode != HttpStatusCode.OK)
{
throw new TestDonkeyException("Can't update item");
}
return("success");
}
/// <summary>
/// Initiates the asynchronous execution of the PutRule operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the PutRule operation.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>The task object representing the asynchronous operation.</returns>
/// <seealso href="http://docs.aws.amazon.com/goto/WebAPI/events-2015-10-07/PutRule">REST API Reference for PutRule Operation</seealso>
public virtual Task <PutRuleResponse> PutRuleAsync(PutRuleRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var options = new InvokeOptions();
options.RequestMarshaller = PutRuleRequestMarshaller.Instance;
options.ResponseUnmarshaller = PutRuleResponseUnmarshaller.Instance;
return(InvokeAsync <PutRuleResponse>(request, options, cancellationToken));
}
internal virtual PutRuleResponse PutRule(PutRuleRequest request)
{
var options = new InvokeOptions();
options.RequestMarshaller = PutRuleRequestMarshaller.Instance;
options.ResponseUnmarshaller = PutRuleResponseUnmarshaller.Instance;
return(Invoke <PutRuleResponse>(request, options));
}
static async Task Main(string[] args)
{
// Create Eventbridge & Lambda Client
var EBclient = new AmazonEventBridgeClient(awsAccessKeyId: "Your-Access-Key", awsSecretAccessKey: "Your-Secret-Access-Key", region: Amazon.RegionEndpoint.APSoutheast1);
var lambdaClient = new AmazonLambdaClient(awsAccessKeyId: "Your-Access-Key", awsSecretAccessKey: "Your-Secret-Access-Key", region: Amazon.RegionEndpoint.APSoutheast1);
// Create a Scheduled Rule on EventBridge
var putRuleRequest = new PutRuleRequest();
putRuleRequest.Name = "Rule2";
putRuleRequest.ScheduleExpression = "cron(*/1 * * * ? *)"; // Cron Expression (UTC Time): Minute Hour (DayofMonth) Month (DayofWeek) Year
putRuleRequest.EventBusName = "default";
putRuleRequest.State = RuleState.ENABLED;
var putRuleResponse = await EBclient.PutRuleAsync(putRuleRequest);
Console.WriteLine(putRuleResponse.HttpStatusCode);
Console.WriteLine(putRuleResponse.RuleArn);
// Add Permission of the ScheduledRule to invoke function in Lambda
var addPermissionRequest = new Amazon.Lambda.Model.AddPermissionRequest();
addPermissionRequest.Action = "lambda:InvokeFunction";
addPermissionRequest.Principal = "events.amazonaws.com";
addPermissionRequest.StatementId = "lambda-rule-2";
addPermissionRequest.SourceArn = putRuleResponse.RuleArn;
addPermissionRequest.FunctionName = "TestEBSNS";
var addPermissionResponse = await lambdaClient.AddPermissionAsync(addPermissionRequest);
Console.WriteLine(addPermissionResponse.HttpStatusCode);
// Set Target of the Schedule Rule to Lambda Function
var putTargetRequest = new PutTargetsRequest();
putTargetRequest.Rule = "Rule2";
putTargetRequest.EventBusName = "default";
var eventTarget = new Target();
eventTarget.Arn = "arn:aws:lambda:your-region:your-account:function:TestEBSNS";
eventTarget.Input = "{ \"Key1\":\"Rule1\", \"Key2\":\"Rule2\" }";
eventTarget.Id = "1";
List <Target> eventTargets = new List <Target>();
eventTargets.Add(eventTarget);
putTargetRequest.Targets = eventTargets;
var putTargetResponse = await EBclient.PutTargetsAsync(putTargetRequest);
Console.WriteLine(putTargetResponse.HttpStatusCode);
}
public static void PutRuleExample()
{
AmazonCloudWatchEventsClient client = new AmazonCloudWatchEventsClient();
var putRuleRequest = new PutRuleRequest
{
Name = "DEMO_EVENT",
RoleArn = "IAM_ROLE_ARN",
ScheduleExpression = "rate(5 minutes)",
State = RuleState.ENABLED
};
var putRuleResponse = client.PutRule(putRuleRequest);
Console.WriteLine("Successfully set the rule {0}", putRuleResponse.RuleArn);
}
public async Task <String> SetRule(AmazonCloudWatchEventsClient client, String rulename, String cron)
{
try
{
var putRuleRequest = new PutRuleRequest
{
Name = rulename,
ScheduleExpression = cron,
State = RuleState.ENABLED
};
var putRuleResponse = await client.PutRuleAsync(putRuleRequest);
String result = putRuleResponse.RuleArn;
return(result);
}
catch (Exception e)
{
throw new Exception("unable to set rule");
}
}
public string Add(Notification input, ILambdaContext context)
{
if (input == null)
{
throw new ArgumentNullException("Input required");
}
//var topicId = Guid.NewGuid().ToString();
var region = RegionEndpoint.APSoutheast1;
//Create topic in SNS
var snsClient = new AmazonSimpleNotificationServiceClient(region);
var createTopicRequest = new CreateTopicRequest();
createTopicRequest.Name = input.TopicName;
var createTopicResponse = snsClient.CreateTopicAsync(createTopicRequest).Result;
if (createTopicResponse.HttpStatusCode != HttpStatusCode.OK)
{
throw new TestDonkeyException("Can't add topic");
}
//Create rule in CloudWatch Events
var cloudWatchEventClient = new AmazonCloudWatchEventsClient(region);
var putRuleRequest = new PutRuleRequest();
putRuleRequest.ScheduleExpression = input.Cron;
putRuleRequest.Name = $"testdonkey-rule-{ input.TopicId }";
putRuleRequest.State = RuleState.ENABLED;
var putRuleResponse = cloudWatchEventClient.PutRuleAsync(putRuleRequest).Result;
if (putRuleResponse.HttpStatusCode != HttpStatusCode.OK)
{
throw new TestDonkeyException("Can't add rule");
}
//Set target for CloudWatch Events
var putTargetsRequest = new PutTargetsRequest();
putTargetsRequest.Rule = putRuleRequest.Name;
putTargetsRequest.Targets = new List <Target> {
new Target()
{
Arn = "arn:aws:lambda:ap-southeast-1:404276529491:function:TestDonkeyLambda",
Id = $"testdonkey-target-{ input.TopicId }",
Input = $"{{\"TopicId\":\"{ input.TopicId }\"}}"
}
};
var putTargetsResponse = cloudWatchEventClient.PutTargetsAsync(putTargetsRequest).Result;
if (putTargetsResponse.HttpStatusCode != HttpStatusCode.OK)
{
var deleteRuleRequest = new DeleteRuleRequest();
deleteRuleRequest.Name = putRuleRequest.Name;
cloudWatchEventClient.DeleteRuleAsync(deleteRuleRequest);
throw new TestDonkeyException("Can't add target");
}
//Add permission to accept CloudWatch Events trigger for Lambda
var lambdaClient = new AmazonLambdaClient(region);
var addPermissionRequest = new Amazon.Lambda.Model.AddPermissionRequest();
addPermissionRequest.FunctionName = "TestDonkeyLambda";
addPermissionRequest.Action = "lambda:InvokeFunction";
addPermissionRequest.StatementId = $"testdonkey-lambda-{ input.TopicId }";
addPermissionRequest.Principal = "events.amazonaws.com";
addPermissionRequest.SourceArn = putRuleResponse.RuleArn;
var addPermissionResponse = lambdaClient.AddPermissionAsync(addPermissionRequest).Result;
if (addPermissionResponse.HttpStatusCode != HttpStatusCode.Created)
{
throw new TestDonkeyException("Can't add permission");
}
//Save notification to DynamoDB
var dynamoDBClient = new AmazonDynamoDBClient(region);
var item = new Dictionary <string, AttributeValue>();
item.Add("id", new AttributeValue()
{
S = input.TopicId
});
item.Add("name", new AttributeValue()
{
S = input.TopicName
});
item.Add("arn", new AttributeValue()
{
S = createTopicResponse.TopicArn
});
item.Add("cron", new AttributeValue()
{
S = input.Cron
});
var putItemResponse = dynamoDBClient.PutItemAsync("Topics", item).Result;
if (putItemResponse.HttpStatusCode != HttpStatusCode.OK)
{
throw new TestDonkeyException("Can't add item");
}
return("success");
}
