AWS CLI Command Reference

[ aws . lambda ]

list-event-source-mappings

Description

Lists event source mappings. Specify an EventSourceArn to show only event source mappings for a single event source.

See also: AWS API Documentation

list-event-source-mappings is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: EventSourceMappings

Synopsis

  list-event-source-mappings
[--event-source-arn <value>]
[--function-name <value>]
[--max-items <value>]
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

Options

--event-source-arn (string)

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

  • Amazon Kinesis – The ARN of the data stream or a stream consumer.
  • Amazon DynamoDB Streams – The ARN of the stream.
  • Amazon Simple Queue Service – The ARN of the queue.
  • Amazon Managed Streaming for Apache Kafka – The ARN of the cluster or the ARN of the VPC connection (for cross-account event source mappings ).
  • Amazon MQ – The ARN of the broker.
  • Amazon DocumentDB – The ARN of the DocumentDB change stream.

--function-name (string)

The name or ARN of the Lambda function.

Name formats
  • Function name – MyFunction .
  • Function ARN – arn:aws:lambda:us-west-2:123456789012:function:MyFunction .
  • Version or Alias ARN – arn:aws:lambda:us-west-2:123456789012:function:MyFunction:PROD .
  • Partial ARN – 123456789012:function:MyFunction .

The length constraint applies only to the full ARN. If you specify only the function name, it’s limited to 64 characters in length.

--max-items (integer)

The total number of items to return in the command’s output. If the total number of items available is more than the value specified, a NextToken is provided in the command’s output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--page-size (integer)

The size of each page to get in the AWS service call. This does not affect the number of items returned in the command’s output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination.

--output (string)

The formatting style for command output.

  • json
  • text
  • table
  • yaml
  • yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

  • base64
  • raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

Examples

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To list the event source mappings for a function

The following list-event-source-mappings example displays a list of the event source mappings for the my-function Lambda function.

aws lambda list-event-source-mappings \
    --function-name my-function

Output:

{
    "EventSourceMappings": [
        {
            "UUID": "a1b2c3d4-5678-90ab-cdef-11111EXAMPLE",
            "StateTransitionReason": "USER_INITIATED",
            "LastModified": 1569284520.333,
            "BatchSize": 5,
            "State": "Enabled",
            "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:my-function",
            "EventSourceArn": "arn:aws:sqs:us-west-2:123456789012:mySQSqueue"
        }
    ]
}

For more information, see AWS Lambda Event Source Mapping in the AWS Lambda Developer Guide.

Output

NextMarker -> (string)

A pagination token that’s returned when the response doesn’t contain all event source mappings.

EventSourceMappings -> (list)

A list of event source mappings.

(structure)

A mapping between an Amazon Web Services resource and a Lambda function. For details, see CreateEventSourceMapping .

UUID -> (string)

The identifier of the event source mapping.

StartingPosition -> (string)

The position in a stream from which to start reading. Required for Amazon Kinesis and Amazon DynamoDB Stream event sources. AT_TIMESTAMP is supported only for Amazon Kinesis streams, Amazon DocumentDB, Amazon MSK, and self-managed Apache Kafka.

StartingPositionTimestamp -> (timestamp)

With StartingPosition set to AT_TIMESTAMP , the time from which to start reading. StartingPositionTimestamp cannot be in the future.

BatchSize -> (integer)

The maximum number of records in each batch that Lambda pulls from your stream or queue and sends to your function. Lambda passes all of the records in the batch to the function in a single call, up to the payload limit for synchronous invocation (6 MB).

Default value: Varies by service. For Amazon SQS, the default is 10. For all other services, the default is 100.

Related setting: When you set BatchSize to a value greater than 10, you must set MaximumBatchingWindowInSeconds to at least 1.

MaximumBatchingWindowInSeconds -> (integer)

The maximum amount of time, in seconds, that Lambda spends gathering records before invoking the function. You can configure MaximumBatchingWindowInSeconds to any value from 0 seconds to 300 seconds in increments of seconds.

For streams and Amazon SQS event sources, the default batching window is 0 seconds. For Amazon MSK, Self-managed Apache Kafka, Amazon MQ, and DocumentDB event sources, the default batching window is 500 ms. Note that because you can only change MaximumBatchingWindowInSeconds in increments of seconds, you cannot revert back to the 500 ms default batching window after you have changed it. To restore the default batching window, you must create a new event source mapping.

Related setting: For streams and Amazon SQS event sources, when you set BatchSize to a value greater than 10, you must set MaximumBatchingWindowInSeconds to at least 1.

ParallelizationFactor -> (integer)

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

EventSourceArn -> (string)

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

FilterCriteria -> (structure)

An object that defines the filter criteria that determine whether Lambda should process an event. For more information, see Lambda event filtering .

Filters -> (list)

A list of filters.

(structure)

A structure within a FilterCriteria object that defines an event filtering pattern.

Pattern -> (string)

A filter pattern. For more information on the syntax of a filter pattern, see Filter rule syntax .

FunctionArn -> (string)

The ARN of the Lambda function.

LastModified -> (timestamp)

The date that the event source mapping was last updated or that its state changed.

LastProcessingResult -> (string)

The result of the last Lambda invocation of your function.

State -> (string)

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

StateTransitionReason -> (string)

Indicates whether a user or Lambda made the last change to the event source mapping.

DestinationConfig -> (structure)

(Kinesis, DynamoDB Streams, Amazon MSK, and self-managed Apache Kafka event sources only) A configuration object that specifies the destination of an event after Lambda processes it.

OnSuccess -> (structure)

The destination configuration for successful invocations.

Destination -> (string)

The Amazon Resource Name (ARN) of the destination resource.

OnFailure -> (structure)

The destination configuration for failed invocations.

Destination -> (string)

The Amazon Resource Name (ARN) of the destination resource.

To retain records of asynchronous invocations , you can configure an Amazon SNS topic, Amazon SQS queue, Lambda function, or Amazon EventBridge event bus as the destination.

To retain records of failed invocations from Kinesis and DynamoDB event sources , you can configure an Amazon SNS topic or Amazon SQS queue as the destination.

To retain records of failed invocations from self-managed Kafka or Amazon MSK , you can configure an Amazon SNS topic, Amazon SQS queue, or Amazon S3 bucket as the destination.

Topics -> (list)

The name of the Kafka topic.

(string)

Queues -> (list)

(Amazon MQ) The name of the Amazon MQ broker destination queue to consume.

(string)

SourceAccessConfigurations -> (list)

An array of the authentication protocol, VPC components, or virtual host to secure and define your event source.

(structure)

To secure and define access to your event source, you can specify the authentication protocol, VPC components, or virtual host.

Type -> (string)

The type of authentication protocol, VPC components, or virtual host for your event source. For example: "Type":"SASL_SCRAM_512_AUTH" .

  • BASIC_AUTH – (Amazon MQ) The Secrets Manager secret that stores your broker credentials.
  • BASIC_AUTH – (Self-managed Apache Kafka) The Secrets Manager ARN of your secret key used for SASL/PLAIN authentication of your Apache Kafka brokers.
  • VPC_SUBNET – (Self-managed Apache Kafka) The subnets associated with your VPC. Lambda connects to these subnets to fetch data from your self-managed Apache Kafka cluster.
  • VPC_SECURITY_GROUP – (Self-managed Apache Kafka) The VPC security group used to manage access to your self-managed Apache Kafka brokers.
  • SASL_SCRAM_256_AUTH – (Self-managed Apache Kafka) The Secrets Manager ARN of your secret key used for SASL SCRAM-256 authentication of your self-managed Apache Kafka brokers.
  • SASL_SCRAM_512_AUTH – (Amazon MSK, Self-managed Apache Kafka) The Secrets Manager ARN of your secret key used for SASL SCRAM-512 authentication of your self-managed Apache Kafka brokers.
  • VIRTUAL_HOST –- (RabbitMQ) The name of the virtual host in your RabbitMQ broker. Lambda uses this RabbitMQ host as the event source. This property cannot be specified in an UpdateEventSourceMapping API call.
  • CLIENT_CERTIFICATE_TLS_AUTH – (Amazon MSK, self-managed Apache Kafka) The Secrets Manager ARN of your secret key containing the certificate chain (X.509 PEM), private key (PKCS#8 PEM), and private key password (optional) used for mutual TLS authentication of your MSK/Apache Kafka brokers.
  • SERVER_ROOT_CA_CERTIFICATE – (Self-managed Apache Kafka) The Secrets Manager ARN of your secret key containing the root CA certificate (X.509 PEM) used for TLS encryption of your Apache Kafka brokers.

URI -> (string)

The value for your chosen configuration in Type . For example: "URI": "arn:aws:secretsmanager:us-east-1:01234567890:secret:MyBrokerSecretName" .

SelfManagedEventSource -> (structure)

The self-managed Apache Kafka cluster for your event source.

Endpoints -> (map)

The list of bootstrap servers for your Kafka brokers in the following format: "KAFKA_BOOTSTRAP_SERVERS": ["abc.xyz.com:xxxx","abc2.xyz.com:xxxx"] .

key -> (string)

value -> (list)

(string)

MaximumRecordAgeInSeconds -> (integer)

(Kinesis and DynamoDB Streams only) Discard records older than the specified age. The default value is -1, which sets the maximum age to infinite. When the value is set to infinite, Lambda never discards old records.

Note

The minimum valid value for maximum record age is 60s. Although values less than 60 and greater than -1 fall within the parameter’s absolute range, they are not allowed

BisectBatchOnFunctionError -> (boolean)

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

MaximumRetryAttempts -> (integer)

(Kinesis and DynamoDB Streams only) Discard records after the specified number of retries. The default value is -1, which sets the maximum number of retries to infinite. When MaximumRetryAttempts is infinite, Lambda retries failed records until the record expires in the event source.

TumblingWindowInSeconds -> (integer)

(Kinesis and DynamoDB Streams only) The duration in seconds of a processing window for DynamoDB and Kinesis Streams event sources. A value of 0 seconds indicates no tumbling window.

FunctionResponseTypes -> (list)

(Kinesis, DynamoDB Streams, and Amazon SQS) A list of current response type enums applied to the event source mapping.

(string)

AmazonManagedKafkaEventSourceConfig -> (structure)

Specific configuration settings for an Amazon Managed Streaming for Apache Kafka (Amazon MSK) event source.

ConsumerGroupId -> (string)

The identifier for the Kafka consumer group to join. The consumer group ID must be unique among all your Kafka event sources. After creating a Kafka event source mapping with the consumer group ID specified, you cannot update this value. For more information, see Customizable consumer group ID .

SelfManagedKafkaEventSourceConfig -> (structure)

Specific configuration settings for a self-managed Apache Kafka event source.

ConsumerGroupId -> (string)

The identifier for the Kafka consumer group to join. The consumer group ID must be unique among all your Kafka event sources. After creating a Kafka event source mapping with the consumer group ID specified, you cannot update this value. For more information, see Customizable consumer group ID .

ScalingConfig -> (structure)

(Amazon SQS only) The scaling configuration for the event source. For more information, see Configuring maximum concurrency for Amazon SQS event sources .

MaximumConcurrency -> (integer)

Limits the number of concurrent instances that the Amazon SQS event source can invoke.

DocumentDBEventSourceConfig -> (structure)

Specific configuration settings for a DocumentDB event source.

DatabaseName -> (string)

The name of the database to consume within the DocumentDB cluster.

CollectionName -> (string)

The name of the collection to consume within the database. If you do not specify a collection, Lambda consumes all collections.

FullDocument -> (string)

Determines what DocumentDB sends to your event stream during document update operations. If set to UpdateLookup, DocumentDB sends a delta describing the changes, along with a copy of the entire document. Otherwise, DocumentDB sends only a partial document that contains the changes.
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