GetEventSourceMapping - AWS Lambda
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GetEventSourceMapping

Returns details about an event source mapping. You can get the identifier of a mapping from the output of ListEventSourceMappings.

Request Syntax

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

URI Request Parameters

The request uses the following URI parameters.

UUID

The identifier of the event source mapping.

Required: Yes

Request Body

The request does not have a request body.

Response Syntax

HTTP/1.1 200 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", "Topics": [ "string" ], "UUID": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

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

BatchSize

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

Type: Integer

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

BisectBatchOnFunctionError

(Streams) If the function returns an error, split the batch in two and retry. The default value is false.

Type: Boolean

DestinationConfig

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

Type: DestinationConfig object

EventSourceArn

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})?:(.*)

FunctionArn

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-_]+))?

LastModified

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

Type: Timestamp

LastProcessingResult

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

Type: String

MaximumBatchingWindowInSeconds

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

Type: Integer

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

MaximumRecordAgeInSeconds

(Streams) Discard records older than the specified age. The default value is infinite (-1). When set to infinite (-1), failed records are retried until the record expires.

Type: Integer

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

MaximumRetryAttempts

(Streams) Discard records after the specified number of retries. The default value is infinite (-1). When set to infinite (-1), failed records are retried until the record expires.

Type: Integer

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

ParallelizationFactor

(Streams) The number of batches to process from each shard concurrently. The default value is 1.

Type: Integer

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

State

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

Type: String

StateTransitionReason

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

Type: String

Topics

(MSK) The name of the Kafka topic.

Type: Array of strings

Array Members: Fixed number of 1 item.

Length Constraints: Minimum length of 1. Maximum length of 249.

Pattern: ^[^.]([a-zA-Z0-9\-_.]+)

UUID

The identifier of the event source mapping.

Type: String

Errors

InvalidParameterValueException

One of the parameters in the request is invalid.

HTTP Status Code: 400

ResourceNotFoundException

The resource specified in the request does not exist.

HTTP Status Code: 404

ServiceException

The AWS Lambda service encountered an internal error.

HTTP Status Code: 500

TooManyRequestsException

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: