View Source AWS.Lambda (aws-elixir v1.0.4)
Lambda
overview
Overview
Lambda is a compute service that lets you run code without provisioning or managing servers.
Lambda runs your code on a high-availability compute infrastructure and performs all of the administration of the compute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, code monitoring and logging. With Lambda, you can run code for virtually any type of application or backend service. For more information about the Lambda service, see What is Lambda in the Lambda Developer Guide.
The Lambda API Reference provides information about each of the API methods, including details about the parameters in each API request and response.
You can use Software Development Kits (SDKs), Integrated Development Environment (IDE) Toolkits, and command line tools to access the API. For installation instructions, see Tools for Amazon Web Services.
For a list of Region-specific endpoints that Lambda supports, see Lambda endpoints and quotas in the Amazon Web Services General Reference..
When making the API calls, you will need to authenticate your request by providing a signature. Lambda supports signature version 4. For more information, see Signature Version 4 signing process in the Amazon Web Services General Reference..
ca-certificates
CA certificates
Because Amazon Web Services SDKs use the CA certificates from your computer, changes to the certificates on the Amazon Web Services servers can cause connection failures when you attempt to use an SDK. You can prevent these failures by keeping your computer's CA certificates and operating system up-to-date. If you encounter this issue in a corporate environment and do not manage your own computer, you might need to ask an administrator to assist with the update process. The following list shows minimum operating system and Java versions:
* Microsoft Windows versions that have updates from January 2005 or later installed contain at least one of the required CAs in their trust list.
* Mac OS X 10.4 with Java for Mac OS X 10.4 Release 5 (February 2007), Mac OS X 10.5 (October 2007), and later versions contain at least one of the required CAs in their trust list.
* Red Hat Enterprise Linux 5 (March 2007), 6, and 7 and CentOS 5, 6, and 7 all contain at least one of the required CAs in their default trusted CA list.
* Java 1.4.2_12 (May 2006), 5 Update 2 (March 2005), and all later versions, including Java 6 (December 2006), 7, and 8, contain at least one of the required CAs in their default trusted CA list.
When accessing the Lambda management console or Lambda API endpoints, whether through browsers or programmatically, you will need to ensure your client machines support any of the following CAs:
* Amazon Root CA 1
* Starfield Services Root Certificate Authority - G2
* Starfield Class 2 Certification Authority
Root certificates from the first two authorities are available from Amazon trust services, but keeping your computer up-to-date is the more straightforward solution. To learn more about ACM-provided certificates, see Amazon Web Services Certificate Manager FAQs.
Link to this section Summary
Functions
Adds permissions to the resource-based policy of a version of an Lambda layer.
Grants a principal permission to use a function.
Creates an alias for a Lambda function version.
Creates a code signing configuration.
Creates a mapping between an event source and an Lambda function.
Creates a Lambda function.
Creates a Lambda function URL with the specified configuration parameters.
Deletes a Lambda function alias.
Deletes the code signing configuration.
Deletes a Lambda function.
Removes the code signing configuration from the function.
Removes a concurrent execution limit from a function.
Deletes the configuration for asynchronous invocation for a function, version, or alias.
Deletes a Lambda function URL.
Deletes a version of an Lambda layer.
Deletes the provisioned concurrency configuration for a function.
Retrieves details about your account's limits and usage in an Amazon Web Services Region.
Returns details about a Lambda function alias.
Returns information about the specified code signing configuration.
Returns details about an event source mapping.
Returns information about the function or function version, with a link to download the deployment package that's valid for 10 minutes.
Returns the code signing configuration for the specified function.
Returns details about the reserved concurrency configuration for a function.
Returns the version-specific settings of a Lambda function or version.
Retrieves the configuration for asynchronous invocation for a function, version, or alias.
Returns your function's recursive loop detection configuration.
Returns details about a Lambda function URL.
Returns information about a version of an Lambda layer, with a link to download the layer archive that's valid for 10 minutes.
Returns information about a version of an Lambda layer, with a link to download the layer archive that's valid for 10 minutes.
Returns the permission policy for a version of an Lambda layer.
Returns the resource-based IAM policy for a function, version, or alias.
Retrieves the provisioned concurrency configuration for a function's alias or version.
Retrieves the runtime management configuration for a function's version.
Invokes a Lambda function.
For asynchronous function invocation, use Invoke.
Configure your Lambda functions to stream response payloads back to clients.
Returns a list of aliases for a Lambda function.
Returns a list of code signing configurations.
Lists event source mappings.
Retrieves a list of configurations for asynchronous invocation for a function.
Returns a list of Lambda function URLs for the specified function.
Returns a list of Lambda functions, with the version-specific configuration of each.
List the functions that use the specified code signing configuration.
Lists the versions of an Lambda layer.
Lists Lambda layers and shows information about the latest version of each.
Retrieves a list of provisioned concurrency configurations for a function.
Returns a function, event source mapping, or code signing configuration's tags.
Returns a list of versions, with the version-specific configuration of each.
Creates an Lambda layer from a ZIP archive.
Creates a version from the current code and configuration of a function.
Update the code signing configuration for the function.
Sets the maximum number of simultaneous executions for a function, and reserves capacity for that concurrency level.
Configures options for asynchronous invocation on a function, version, or alias.
Sets your function's recursive loop detection configuration.
Adds a provisioned concurrency configuration to a function's alias or version.
Sets the runtime management configuration for a function's version.
Removes a statement from the permissions policy for a version of an Lambda layer.
Revokes function-use permission from an Amazon Web Services service or another Amazon Web Services account.
Adds tags to a function, event source mapping, or code signing configuration.
Removes tags from a function, event source mapping, or code signing configuration.
Updates the configuration of a Lambda function alias.
Update the code signing configuration.
Updates an event source mapping.
Updates a Lambda function's code.
Modify the version-specific settings of a Lambda function.
Updates the configuration for asynchronous invocation for a function, version, or alias.
Updates the configuration for a Lambda function URL.
Link to this section Functions
add_layer_version_permission(client, layer_name, version_number, input, options \\ [])
View SourceAdds permissions to the resource-based policy of a version of an Lambda layer.
Use this action to grant layer usage permission to other accounts. You can grant permission to a single account, all accounts in an organization, or all Amazon Web Services accounts.
To revoke permission, call RemoveLayerVersionPermission with the statement ID
that you
specified when you added it.
Grants a principal permission to use a function.
You can apply the policy at the function level, or specify a qualifier to restrict access to a single version or alias. If you use a qualifier, the invoker must use the full Amazon Resource Name (ARN) of that version or alias to invoke the function. Note: Lambda does not support adding policies to version $LATEST.
To grant permission to another account, specify the account ID as the
Principal. To grant
permission to an organization defined in Organizations, specify the organization
ID as the
PrincipalOrgID. For Amazon Web Services services, the principal is a
domain-style identifier that
the service defines, such as s3.amazonaws.com or sns.amazonaws.com. For
Amazon Web Services services, you can also specify the ARN of the associated
resource as the SourceArn. If
you grant permission to a service principal without specifying the source, other
accounts could potentially
configure resources in their account to invoke your Lambda function.
This operation adds a statement to a resource-based permissions policy for the function. For more information about function policies, see Using resource-based policies for Lambda.
Creates an alias for a Lambda function version.
Use aliases to provide clients with a function identifier that you can update to invoke a different version.
You can also map an alias to split invocation requests between two versions. Use
the
RoutingConfig parameter to specify a second version and the percentage of
invocation requests that
it receives.
Creates a code signing configuration.
A code signing configuration defines a list of allowed signing profiles and defines the code-signing validation policy (action to be taken if deployment validation checks fail).
Creates a mapping between an event source and an Lambda function.
Lambda reads items from the event source and invokes the function.
For details about how to configure different event sources, see the following topics.
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The following error handling options are available only for DynamoDB and Kinesis event sources:
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BisectBatchOnFunctionError – If the function returns an error, split the batch
in two and retry.
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MaximumRecordAgeInSeconds – 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
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MaximumRetryAttempts – 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.
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ParallelizationFactor – Process multiple batches from each shard concurrently.
For stream sources (DynamoDB, Kinesis, Amazon MSK, and self-managed Apache Kafka), the following option is also available:
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DestinationConfig – Send discarded records to an Amazon SQS queue, Amazon SNS
topic, or
Amazon S3 bucket.
For information about which configuration parameters apply to each event source, see the following topics.
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Creates a Lambda function.
To create a function, you need a deployment package and an execution role. The deployment package is a .zip file archive or container image that contains your function code. The execution role grants the function permission to use Amazon Web Services services, such as Amazon CloudWatch Logs for log streaming and X-Ray for request tracing.
If the deployment package is a container image, then
you set the package type to Image. For a container image, the code property
must include the URI of a container image in the Amazon ECR registry. You do not
need to specify the
handler and runtime properties.
If the deployment package is a .zip file archive,
then
you set the package type to Zip. For a .zip file archive, the code property
specifies the location of
the .zip file. You must also specify the handler and runtime properties. The
code in the deployment package must
be compatible with the target instruction set architecture of the function
(x86-64 or
arm64). If you do not specify the architecture, then the default value is
x86-64.
When you create a function, Lambda provisions an instance of the function and
its supporting
resources. If your function connects to a VPC, this process can take a minute or
so. During this time, you can't
invoke or modify the function. The State, StateReason, and StateReasonCode
fields in the response from GetFunctionConfiguration indicate when the
function is ready to
invoke. For more information, see Lambda function states.
A function has an unpublished version, and can have published versions and
aliases. The unpublished version
changes when you update your function's code and configuration. A published
version is a snapshot of your function
code and configuration that can't be changed. An alias is a named resource that
maps to a version, and can be
changed to map to a different version. Use the Publish parameter to create
version 1 of
your function from its initial configuration.
The other parameters let you configure version-specific and function-level
settings. You can modify
version-specific settings later with UpdateFunctionConfiguration.
Function-level settings apply
to both the unpublished and published versions of the function, and include tags
(TagResource)
and per-function concurrency limits (PutFunctionConcurrency).
You can use code signing if your deployment package is a .zip file archive. To
enable code signing for this
function, specify the ARN of a code-signing configuration. When a user attempts
to deploy a code package with
UpdateFunctionCode, Lambda checks that the code package has a valid signature
from
a trusted publisher. The code-signing configuration includes set of signing
profiles, which define the trusted
publishers for this function.
If another Amazon Web Services account or an Amazon Web Services service invokes
your function, use AddPermission to grant permission by creating a
resource-based Identity and Access Management (IAM) policy. You can grant
permissions at the function level, on a version, or on an alias.
To invoke your function directly, use Invoke. To invoke your function in
response to events
in other Amazon Web Services services, create an event source mapping
(CreateEventSourceMapping),
or configure a function trigger in the other service. For more information, see
Invoking Lambda functions.
create_function_url_config(client, function_name, input, options \\ [])
View SourceCreates a Lambda function URL with the specified configuration parameters.
A function URL is a dedicated HTTP(S) endpoint that you can use to invoke your function.
Deletes a Lambda function alias.
delete_code_signing_config(client, code_signing_config_arn, input, options \\ [])
View SourceDeletes the code signing configuration.
You can delete the code signing configuration only if no function is using it.
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.
Deletes a Lambda function.
To delete a specific function version, use the Qualifier parameter.
Otherwise, all versions and aliases are deleted. This doesn't require the user
to have explicit
permissions for DeleteAlias.
To delete Lambda event source mappings that invoke a function, use
DeleteEventSourceMapping. For Amazon Web Services services and resources that
invoke your function
directly, delete the trigger in the service where you originally configured it.
delete_function_code_signing_config(client, function_name, input, options \\ [])
View SourceRemoves the code signing configuration from the function.
delete_function_concurrency(client, function_name, input, options \\ [])
View SourceRemoves a concurrent execution limit from a function.
delete_function_event_invoke_config(client, function_name, input, options \\ [])
View SourceDeletes the configuration for asynchronous invocation for a function, version, or alias.
To configure options for asynchronous invocation, use
PutFunctionEventInvokeConfig.
delete_function_url_config(client, function_name, input, options \\ [])
View SourceDeletes a Lambda function URL.
When you delete a function URL, you can't recover it. Creating a new function URL results in a different URL address.
delete_layer_version(client, layer_name, version_number, input, options \\ [])
View SourceDeletes a version of an Lambda layer.
Deleted versions can no longer be viewed or added to functions. To avoid breaking functions, a copy of the version remains in Lambda until no functions refer to it.
delete_provisioned_concurrency_config(client, function_name, input, options \\ [])
View SourceDeletes the provisioned concurrency configuration for a function.
Retrieves details about your account's limits and usage in an Amazon Web Services Region.
Returns details about a Lambda function alias.
get_code_signing_config(client, code_signing_config_arn, options \\ [])
View SourceReturns information about the specified code signing configuration.
Returns details about an event source mapping.
You can get the identifier of a mapping from the output of
ListEventSourceMappings.
get_function(client, function_name, qualifier \\ nil, options \\ [])
View SourceReturns information about the function or function version, with a link to download the deployment package that's valid for 10 minutes.
If you specify a function version, only details that are specific to that version are returned.
get_function_code_signing_config(client, function_name, options \\ [])
View SourceReturns the code signing configuration for the specified function.
Returns details about the reserved concurrency configuration for a function.
To set a concurrency limit for a
function, use PutFunctionConcurrency.
get_function_configuration(client, function_name, qualifier \\ nil, options \\ [])
View SourceReturns the version-specific settings of a Lambda function or version.
The output includes only options that
can vary between versions of a function. To modify these settings, use
UpdateFunctionConfiguration.
To get all of a function's details, including function-level settings, use
GetFunction.
get_function_event_invoke_config(client, function_name, qualifier \\ nil, options \\ [])
View SourceRetrieves the configuration for asynchronous invocation for a function, version, or alias.
To configure options for asynchronous invocation, use
PutFunctionEventInvokeConfig.
get_function_recursion_config(client, function_name, options \\ [])
View SourceReturns your function's recursive loop detection configuration.
get_function_url_config(client, function_name, qualifier \\ nil, options \\ [])
View SourceReturns details about a Lambda function URL.
get_layer_version(client, layer_name, version_number, options \\ [])
View SourceReturns information about a version of an Lambda layer, with a link to download the layer archive that's valid for 10 minutes.
Returns information about a version of an Lambda layer, with a link to download the layer archive that's valid for 10 minutes.
get_layer_version_policy(client, layer_name, version_number, options \\ [])
View SourceReturns the permission policy for a version of an Lambda layer.
For more information, see AddLayerVersionPermission.
get_policy(client, function_name, qualifier \\ nil, options \\ [])
View SourceReturns the resource-based IAM policy for a function, version, or alias.
get_provisioned_concurrency_config(client, function_name, qualifier, options \\ [])
View SourceRetrieves the provisioned concurrency configuration for a function's alias or version.
get_runtime_management_config(client, function_name, qualifier \\ nil, options \\ [])
View SourceRetrieves the runtime management configuration for a function's version.
If the runtime update mode is Manual, this includes the ARN of the
runtime version and the runtime update mode. If the runtime update mode is
Auto or Function update,
this includes the runtime update mode and null is returned for the ARN. For
more information, see Runtime updates.
Invokes a Lambda function.
You can invoke a function synchronously (and wait for the response), or
asynchronously. By default, Lambda invokes your function synchronously (i.e.
theInvocationType
is RequestResponse). To invoke a function asynchronously, set InvocationType
to
Event. Lambda passes the ClientContext object to your function for
synchronous invocations only.
For synchronous invocation, details about the function response, including errors, are included in the response body and headers. For either invocation type, you can find more information in the execution log and trace. When an error occurs, your function may be invoked multiple times. Retry behavior varies by error type, client, event source, and invocation type. For example, if you invoke a function asynchronously and it returns an error, Lambda executes the function up to two more times. For more information, see Error handling and automatic retries in Lambda.
For asynchronous invocation, Lambda adds events to a queue before sending them to your function. If your function does not have enough capacity to keep up with the queue, events may be lost. Occasionally, your function may receive the same event multiple times, even if no error occurs. To retain events that were not processed, configure your function with a dead-letter queue.
The status code in the API response doesn't reflect function errors. Error codes
are reserved for errors that
prevent your function from executing, such as permissions errors,
quota errors, or issues with your function's code and
configuration. For example, Lambda returns TooManyRequestsException if running
the
function would cause you to exceed a concurrency limit at either the account
level
(ConcurrentInvocationLimitExceeded) or function level
(ReservedFunctionConcurrentInvocationLimitExceeded).
For functions with a long timeout, your client might disconnect during synchronous invocation while it waits for a response. Configure your HTTP client, SDK, firewall, proxy, or operating system to allow for long connections with timeout or keep-alive settings.
This operation requires permission for the lambda:InvokeFunction action. For details on how to set up permissions for cross-account invocations, see Granting function access to other accounts.
For asynchronous function invocation, use Invoke.
Invokes a function asynchronously.
If you do use the InvokeAsync action, note that it doesn't support the use of X-Ray active tracing. Trace ID is not propagated to the function, even if X-Ray active tracing is turned on.
invoke_with_response_stream(client, function_name, input, options \\ [])
View SourceConfigure your Lambda functions to stream response payloads back to clients.
For more information, see Configuring a Lambda function to stream responses.
This operation requires permission for the lambda:InvokeFunction action. For details on how to set up permissions for cross-account invocations, see Granting function access to other accounts.
list_aliases(client, function_name, function_version \\ nil, marker \\ nil, max_items \\ nil, options \\ [])
View SourceReturns a list of aliases for a Lambda function.
list_code_signing_configs(client, marker \\ nil, max_items \\ nil, options \\ [])
View SourceReturns a list of code signing configurations.
A request returns up to 10,000 configurations per
call. You can use the MaxItems parameter to return fewer configurations per
call.
list_event_source_mappings(client, event_source_arn \\ nil, function_name \\ nil, marker \\ nil, max_items \\ nil, options \\ [])
View SourceLists event source mappings.
Specify an EventSourceArn to show only event source mappings for a
single event source.
list_function_event_invoke_configs(client, function_name, marker \\ nil, max_items \\ nil, options \\ [])
View SourceRetrieves a list of configurations for asynchronous invocation for a function.
To configure options for asynchronous invocation, use
PutFunctionEventInvokeConfig.
list_function_url_configs(client, function_name, marker \\ nil, max_items \\ nil, options \\ [])
View SourceReturns a list of Lambda function URLs for the specified function.
list_functions(client, function_version \\ nil, marker \\ nil, master_region \\ nil, max_items \\ nil, options \\ [])
View SourceReturns a list of Lambda functions, with the version-specific configuration of each.
Lambda returns up to 50 functions per call.
Set FunctionVersion to ALL to include all published versions of each
function in
addition to the unpublished version.
The ListFunctions operation returns a subset of the FunctionConfiguration
fields.
To get the additional fields (State, StateReasonCode, StateReason,
LastUpdateStatus, LastUpdateStatusReason,
LastUpdateStatusReasonCode, RuntimeVersionConfig) for a function or version, use
GetFunction.
list_functions_by_code_signing_config(client, code_signing_config_arn, marker \\ nil, max_items \\ nil, options \\ [])
View SourceList the functions that use the specified code signing configuration.
You can use this method prior to deleting a code signing configuration, to verify that no functions are using it.
list_layer_versions(client, layer_name, compatible_architecture \\ nil, compatible_runtime \\ nil, marker \\ nil, max_items \\ nil, options \\ [])
View SourceLists the versions of an Lambda layer.
Versions that have been deleted aren't listed. Specify a runtime identifier to list only versions that indicate that they're compatible with that runtime. Specify a compatible architecture to include only layer versions that are compatible with that architecture.
list_layers(client, compatible_architecture \\ nil, compatible_runtime \\ nil, marker \\ nil, max_items \\ nil, options \\ [])
View SourceLists Lambda layers and shows information about the latest version of each.
Specify a runtime identifier to list only layers that indicate that they're compatible with that runtime. Specify a compatible architecture to include only layers that are compatible with that instruction set architecture.
list_provisioned_concurrency_configs(client, function_name, marker \\ nil, max_items \\ nil, options \\ [])
View SourceRetrieves a list of provisioned concurrency configurations for a function.
Returns a function, event source mapping, or code signing configuration's tags.
You can
also view function tags with GetFunction.
list_versions_by_function(client, function_name, marker \\ nil, max_items \\ nil, options \\ [])
View SourceReturns a list of versions, with the version-specific configuration of each.
Lambda returns up to 50 versions per call.
Creates an Lambda layer from a ZIP archive.
Each time you call PublishLayerVersion with the same
layer name, a new version is created.
Add layers to your function with CreateFunction or
UpdateFunctionConfiguration.
Creates a version from the current code and configuration of a function.
Use versions to create a snapshot of your function code and configuration that doesn't change.
Lambda doesn't publish a version if the function's configuration and code
haven't changed since the last
version. Use UpdateFunctionCode or UpdateFunctionConfiguration to update the
function before publishing a version.
Clients can invoke versions directly or with an alias. To create an alias, use
CreateAlias.
put_function_code_signing_config(client, function_name, input, options \\ [])
View SourceUpdate the code signing configuration for the function.
Changes to the code signing configuration take effect the next time a user tries to deploy a code package to the function.
put_function_concurrency(client, function_name, input, options \\ [])
View SourceSets the maximum number of simultaneous executions for a function, and reserves capacity for that concurrency level.
Concurrency settings apply to the function as a whole, including all published
versions and the unpublished
version. Reserving concurrency both ensures that your function has capacity to
process the specified number of
events simultaneously, and prevents it from scaling beyond that level. Use
GetFunction to see
the current setting for a function.
Use GetAccountSettings to see your Regional concurrency limit. You can reserve
concurrency
for as many functions as you like, as long as you leave at least 100
simultaneous executions unreserved for
functions that aren't configured with a per-function limit. For more
information, see Lambda function scaling.
put_function_event_invoke_config(client, function_name, input, options \\ [])
View SourceConfigures options for asynchronous invocation on a function, version, or alias.
If a configuration already exists for a function, version,
or alias, this operation overwrites it. If you exclude any settings, they are
removed. To set one option without
affecting existing settings for other options, use
UpdateFunctionEventInvokeConfig.
By default, Lambda retries an asynchronous invocation twice if the function
returns an error. It retains
events in a queue for up to six hours. When an event fails all processing
attempts or stays in the asynchronous
invocation queue for too long, Lambda discards it. To retain discarded events,
configure a dead-letter queue with
UpdateFunctionConfiguration.
To send an invocation record to a queue, topic, S3 bucket, function, or event bus, specify a destination. You can configure separate destinations for successful invocations (on-success) and events that fail all processing attempts (on-failure). You can configure destinations in addition to or instead of a dead-letter queue.
S3 buckets are supported only for on-failure destinations. To retain records of successful invocations, use another destination type.
put_function_recursion_config(client, function_name, input, options \\ [])
View SourceSets your function's recursive loop detection configuration.
When you configure a Lambda function to output to the same service or resource that invokes the function, it's possible to create an infinite recursive loop. For example, a Lambda function might write a message to an Amazon Simple Queue Service (Amazon SQS) queue, which then invokes the same function. This invocation causes the function to write another message to the queue, which in turn invokes the function again.
Lambda can detect certain types of recursive loops shortly after they occur.
When Lambda detects a recursive loop and your
function's recursive loop detection configuration is set to Terminate, it
stops your function being invoked and notifies
you.
put_provisioned_concurrency_config(client, function_name, input, options \\ [])
View SourceAdds a provisioned concurrency configuration to a function's alias or version.
put_runtime_management_config(client, function_name, input, options \\ [])
View SourceSets the runtime management configuration for a function's version.
For more information, see Runtime updates.
remove_layer_version_permission(client, layer_name, statement_id, version_number, input, options \\ [])
View SourceRemoves a statement from the permissions policy for a version of an Lambda layer.
For more information, see
AddLayerVersionPermission.
remove_permission(client, function_name, statement_id, input, options \\ [])
View SourceRevokes function-use permission from an Amazon Web Services service or another Amazon Web Services account.
You
can get the ID of the statement from the output of GetPolicy.
Adds tags to a function, event source mapping, or code signing configuration.
Removes tags from a function, event source mapping, or code signing configuration.
Updates the configuration of a Lambda function alias.
update_code_signing_config(client, code_signing_config_arn, input, options \\ [])
View SourceUpdate the code signing configuration.
Changes to the code signing configuration take effect the next time a user tries to deploy a code package to the function.
Updates an event source mapping.
You can change the function that Lambda invokes, or pause invocation and resume later from the same location.
For details about how to configure different event sources, see the following topics.
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The following error handling options are available only for DynamoDB and Kinesis event sources:
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BisectBatchOnFunctionError – If the function returns an error, split the batch
in two and retry.
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MaximumRecordAgeInSeconds – 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
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MaximumRetryAttempts – 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.
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ParallelizationFactor – Process multiple batches from each shard concurrently.
For stream sources (DynamoDB, Kinesis, Amazon MSK, and self-managed Apache Kafka), the following option is also available:
*
DestinationConfig – Send discarded records to an Amazon SQS queue, Amazon SNS
topic, or
Amazon S3 bucket.
For information about which configuration parameters apply to each event source, see the following topics.
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Updates a Lambda function's code.
If code signing is enabled for the function, the code package must be signed by a trusted publisher. For more information, see Configuring code signing for Lambda.
If the function's package type is Image, then you must specify the code
package in
ImageUri as the URI of a container image in the
Amazon ECR registry.
If the function's package type is Zip, then you must specify the deployment
package as a .zip file archive.
Enter the Amazon S3 bucket and key of the code .zip file location. You can also
provide
the function code inline using the ZipFile field.
The code in the deployment package must be compatible with the target
instruction set architecture of the
function (x86-64 or arm64).
The function's code is locked when you publish a version. You can't modify the code of a published version, only the unpublished version.
For a function defined as a container image, Lambda resolves the image tag to an image digest. In Amazon ECR, if you update the image tag to a new image, Lambda does not automatically update the function.
update_function_configuration(client, function_name, input, options \\ [])
View SourceModify the version-specific settings of a Lambda function.
When you update a function, Lambda provisions an instance of the function and
its supporting
resources. If your function connects to a VPC, this process can take a minute.
During this time, you can't modify
the function, but you can still invoke it. The LastUpdateStatus,
LastUpdateStatusReason,
and LastUpdateStatusReasonCode fields in the response from
GetFunctionConfiguration
indicate when the update is complete and the function is processing events with
the new configuration. For more
information, see Lambda function
states.
These settings can vary between versions of a function and are locked when you publish a version. You can't modify the configuration of a published version, only the unpublished version.
To configure function concurrency, use PutFunctionConcurrency. To grant invoke
permissions
to an Amazon Web Services account or Amazon Web Services service, use
AddPermission.
update_function_event_invoke_config(client, function_name, input, options \\ [])
View SourceUpdates the configuration for asynchronous invocation for a function, version, or alias.
To configure options for asynchronous invocation, use
PutFunctionEventInvokeConfig.
update_function_url_config(client, function_name, input, options \\ [])
View SourceUpdates the configuration for a Lambda function URL.