CreateRule - EventBridge - Alibaba Cloud Documentation Center

Creates an event rule.

Operation description

You can call this API operation to create an event rule.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
eventbridge:CreateRule	create	*Rule `acs:eventbridge:{#regionId}:{#accountId}:eventbus/{#EventBusName}/rule/{#RuleName}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
EventBusName	string	Yes	The name of the event bus.	MyEventBus
Description	string	No	The description of the event bus.
RuleName	string	Yes	The name of the event rule.	MNSRule
Status	string	No	The status of the event rule. Valid values: ENABLE: enables the event rule. It is the default status of the event rule. DISABLE: disables the event rule.	ENABLE
FilterPattern	string	Yes	The event pattern, in JSON format. Valid values: stringEqual and stringExpression. You can specify up to five expressions in the map data structure in each field. You can specify up to five expressions in the map data structure in each field.	{\"source\": [{\"prefix\": \"acs.\"}],\"type\": [{\"prefix\":\"oss:ObjectReplication\"}],\"subject\":[{\"prefix\":\"acs:oss:cn-hangzhou:123456789098****:my-movie-bucket/\", \"suffix\":\".txt\"}]}
EventTargets	array<object>	Yes	The event targets.
	object	Yes
Id	string	Yes	The ID of the custom event target.	12021
Type	string	Yes	The type of the event target. For more information, see Event target parameters.	acs.mns.queue
Endpoint	string	No	The endpoint of the event target.	acs:mns:cn-hangzhou:123456789098****:queues/myqueue
PushRetryStrategy	string	No	The retry policy that is used to push events. Valid values: BACKOFF_RETRY: backoff retry. If an event failed to be pushed, it can be retried up to three times. The interval between two consecutive retries is a random value between 10 and 20 seconds. EXPONENTIAL_DECAY_RETRY: exponential decay retry. If an event failed to be pushed, it can be retried up to 176 times. The interval between two consecutive retries exponentially increases to 512 seconds, and the total retry time is one day. The specific retry intervals are 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 512, ..., and 512 seconds. The interval of 512 seconds is used for 167 retries.	BACKOFF_RETRY
DeadLetterQueue	object	No	The dead-letter queue. Events that are not processed or whose maximum retries are exceeded are written to the dead-letter queue. The dead-letter queue feature is supported by the following queue types: Message Queue for Apache RocketMQ, Message Service (MNS), Message Queue for Apache Kafka, and EventBridge.
Arn	string	No	The Alibaba Cloud Resource Name (ARN) of the dead-letter queue. Events that are not processed or whose maximum retries are exceeded are written to the dead-letter queue. The ARN feature is supported by the following queue types: MNS and Message Queue for Apache RocketMQ.	acs:mns:cn-hangzhou:123456789098****:/queues/rule-deadletterqueue
ErrorsTolerance	string	No	The fault tolerance policy. Valid values: ALL: allows fault tolerance. If an error occurs, the event processing is not blocked. If the message fails to be sent after the maximum number of retries specified by the retry policy is reached, the message is delivered to the dead-letter queue or discarded based on your configurations. NONE: does not allow fault tolerance. If an error occurs and the message fails to be sent after the maximum number of retries specified by the retry policy is reached, the event processing is blocked.	ALL
ParamList	array<object>	No	The parameters that are configured for the event target.
	object	No
ResourceKey	string	No	The resource parameter of the event target. For more information, see Limits	body
Form	string	No	The format that is used by the event target parameter. For more information, see Limits.	TEMPLATE
Value	string	No	The value of the event target parameter.	{\"key\"=\"value\"}
Template	string	No	The template that is used by the event target parameter.	The value of ${key} is ${value}!

Sample requests

POST /openapi/createRule HTTP/1.1 Host: 123456789098****.eventbridge.cn-hangzhou.aliyuncs.com Date: Sat, 18 Apr 2020 05:30:41 GMT x-eventbridge-version: 2020-04-01 Authorization: acs vZ3VL0SuJdHi****:Jo2PbT******azYAYoYslKLvWzg= Content-Type: application/json;charset=UTF-8 Content-Length: 26

{ "EventBusName":"default", "RuleName":"MNSRule", "Description":"Filtering rule for MNS", "Status":"ENABLE", "filterPattern":"{"source": [{"prefix": "acs."}],"type": [{"prefix":"oss:ObjectReplication"}],"subject":[{"prefix":"acs:oss:cn-hangzhou:123456789098****:my-movie-bucket/", "suffix":".txt"}]}", "Targets":[ { "Id":"1", "Type":"acs.mns.queue", "Endpoint":"acs:mns:cn-hangzhou:123456789098****:queues/myqueue", "PushRetryStrategy":"BACKOFF_RETRY", "DeadLetterQueue":{ "Arn":"acs:mns:cn-hangzhou:123456789098****:/queues/rule-deadletterqueue" }, "ParamList":[ { "resourceKey":"queue", "form":"CONSTANT", "value":"myqueue" }, { "resourceKey":"body", "form":"TEMPLATE", "value":"{"key"="value"}", "template":"The value of ${key} is ${value}!" } ] } ] }

Response parameters

Parameter	Type	Description	Example
	object
Message	string	The returned error message.	Remote error. requestId: [xxxx], error code: [xxx], message: [The target in event rule is invalid! Endpoint is xxx
RequestId	string	The request ID.	1AD6D598-7506-5D2C-81EA-30E3241A903A
Data	object	The returned data.
RuleARN	string	The ARN of the event rule. The ARN is used for authorization.	acs:eventbridge:cn-hangzhou:123456789098****:eventbus/default/rule/MNSRule
Code	string	The returned HTTP status code. The HTTP status code 200 indicates that the request is successful.	200
Success	boolean	Indicates whether the request is successful. Valid values: true and false.	true

Examples

Sample success responses

JSONformat

{
  "Message": "Remote error. requestId: [xxxx], error code: [xxx], message: [The target in event rule is invalid! Endpoint is xxx",
  "RequestId": "1AD6D598-7506-5D2C-81EA-30E3241A903A",
  "Data": {
    "RuleARN": "acs:eventbridge:cn-hangzhou:123456789098****:eventbus/default/rule/MNSRule"
  },
  "Code": "200",
  "Success": true
}

Error codes

HTTP status code	Error code	Error message
403	ServiceNotEnable	Service not enable

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-09-25	The Error code has changed	View Change Details