DeleteEventSourceMapping - AWS Lambda


Deletes an event source mapping. You can get the identifier of a mapping from the output of ListEventSourceMappings.

When you delete an event source mapping, it enters a Deleting state and might not be completely deleted for several seconds.

Request Syntax

DELETE /2015-03-31/event-source-mappings/UUID HTTP/1.1

URI Request Parameters

The request uses the following URI parameters.


The identifier of the event source mapping.

Required: Yes

Request Body

The request does not have a request body.

Response Syntax

HTTP/1.1 202 Content-type: application/json { "BatchSize": number, "BisectBatchOnFunctionError": boolean, "DestinationConfig": { "OnFailure": { "Destination": "string" }, "OnSuccess": { "Destination": "string" } }, "EventSourceArn": "string", "FunctionArn": "string", "LastModified": number, "LastProcessingResult": "string", "MaximumBatchingWindowInSeconds": number, "MaximumRecordAgeInSeconds": number, "MaximumRetryAttempts": number, "ParallelizationFactor": number, "State": "string", "StateTransitionReason": "string", "UUID": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 202 response.

The following data is returned in JSON format by the service.


The maximum number of items to retrieve in a single batch.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 10000.


(Streams) If the function returns an error, split the batch in two and retry.

Type: Boolean


(Streams) An Amazon SQS queue or Amazon SNS topic destination for discarded records.

Type: DestinationConfig object


The Amazon Resource Name (ARN) of the event source.

Type: String

Pattern: arn:(aws[a-zA-Z0-9-]*):([a-zA-Z0-9\-])+:([a-z]{2}(-gov)?-[a-z]+-\d{1})?:(\d{12})?:(.*)


The ARN of the Lambda function.

Type: String

Pattern: arn:(aws[a-zA-Z-]*)?:lambda:[a-z]{2}(-gov)?-[a-z]+-\d{1}:\d{12}:function:[a-zA-Z0-9-_]+(:(\$LATEST|[a-zA-Z0-9-_]+))?


The date that the event source mapping was last updated, or its state changed, in Unix time seconds.

Type: Timestamp


The result of the last AWS Lambda invocation of your Lambda function.

Type: String


(Streams) The maximum amount of time to gather records before invoking the function, in seconds.

Type: Integer

Valid Range: Minimum value of 0. Maximum value of 300.


(Streams) The maximum age of a record that Lambda sends to a function for processing.

Type: Integer

Valid Range: Minimum value of 60. Maximum value of 604800.


(Streams) The maximum number of times to retry when the function returns an error.

Type: Integer

Valid Range: Minimum value of 0. Maximum value of 10000.


(Streams) The number of batches to process from each shard concurrently.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 10.


The state of the event source mapping. It can be one of the following: Creating, Enabling, Enabled, Disabling, Disabled, Updating, or Deleting.

Type: String


Indicates whether the last change to the event source mapping was made by a user, or by the Lambda service.

Type: String


The identifier of the event source mapping.

Type: String



One of the parameters in the request is invalid.

HTTP Status Code: 400


The operation conflicts with the resource's availability. For example, you attempted to update an EventSource Mapping in CREATING, or tried to delete a EventSource mapping currently in the UPDATING state.

HTTP Status Code: 400


The resource specified in the request does not exist.

HTTP Status Code: 404


The AWS Lambda service encountered an internal error.

HTTP Status Code: 500


The request throughput limit was exceeded.

HTTP Status Code: 429

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: