Class: Aws::Lambda::Client
- Inherits:
-
Seahorse::Client::Base
- Object
- Seahorse::Client::Base
- Aws::Lambda::Client
- Includes:
- ClientStubs
- Defined in:
- gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb
Overview
An API client for Lambda. To construct a client, you need to configure a :region
and :credentials
.
client = Aws::Lambda::Client.new(
region: region_name,
credentials: credentials,
# ...
)
For details on configuring region and credentials see the developer guide.
See #initialize for a full list of supported configuration options.
Instance Attribute Summary
Attributes inherited from Seahorse::Client::Base
API Operations collapse
-
#add_layer_version_permission(params = {}) ⇒ Types::AddLayerVersionPermissionResponse
Adds permissions to the resource-based policy of a version of an [AWS Lambda layer][1].
-
#add_permission(params = {}) ⇒ Types::AddPermissionResponse
Grants an AWS service or another account permission to use a function.
-
#create_alias(params = {}) ⇒ Types::AliasConfiguration
Creates an [alias][1] for a Lambda function version.
-
#create_code_signing_config(params = {}) ⇒ Types::CreateCodeSigningConfigResponse
Creates a code signing configuration.
-
#create_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Creates a mapping between an event source and an AWS Lambda function.
-
#create_function(params = {}) ⇒ Types::FunctionConfiguration
Creates a Lambda function.
-
#delete_alias(params = {}) ⇒ Struct
Deletes a Lambda function [alias][1].
-
#delete_code_signing_config(params = {}) ⇒ Struct
Deletes the code signing configuration.
-
#delete_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Deletes an [event source mapping][1].
-
#delete_function(params = {}) ⇒ Struct
Deletes a Lambda function.
-
#delete_function_code_signing_config(params = {}) ⇒ Struct
Removes the code signing configuration from the function.
-
#delete_function_concurrency(params = {}) ⇒ Struct
Removes a concurrent execution limit from a function.
-
#delete_function_event_invoke_config(params = {}) ⇒ Struct
Deletes the configuration for asynchronous invocation for a function, version, or alias.
-
#delete_layer_version(params = {}) ⇒ Struct
Deletes a version of an [AWS Lambda layer][1].
-
#delete_provisioned_concurrency_config(params = {}) ⇒ Struct
Deletes the provisioned concurrency configuration for a function.
-
#get_account_settings(params = {}) ⇒ Types::GetAccountSettingsResponse
Retrieves details about your account's [limits][1] and usage in an AWS Region.
-
#get_alias(params = {}) ⇒ Types::AliasConfiguration
Returns details about a Lambda function [alias][1].
-
#get_code_signing_config(params = {}) ⇒ Types::GetCodeSigningConfigResponse
Returns information about the specified code signing configuration.
-
#get_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Returns details about an event source mapping.
-
#get_function(params = {}) ⇒ Types::GetFunctionResponse
Returns information about the function or function version, with a link to download the deployment package that's valid for 10 minutes.
-
#get_function_code_signing_config(params = {}) ⇒ Types::GetFunctionCodeSigningConfigResponse
Returns the code signing configuration for the specified function.
-
#get_function_concurrency(params = {}) ⇒ Types::GetFunctionConcurrencyResponse
Returns details about the reserved concurrency configuration for a function.
-
#get_function_configuration(params = {}) ⇒ Types::FunctionConfiguration
Returns the version-specific settings of a Lambda function or version.
-
#get_function_event_invoke_config(params = {}) ⇒ Types::FunctionEventInvokeConfig
Retrieves the configuration for asynchronous invocation for a function, version, or alias.
-
#get_layer_version(params = {}) ⇒ Types::GetLayerVersionResponse
Returns information about a version of an [AWS Lambda layer][1], with a link to download the layer archive that's valid for 10 minutes.
-
#get_layer_version_by_arn(params = {}) ⇒ Types::GetLayerVersionResponse
Returns information about a version of an [AWS Lambda layer][1], with a link to download the layer archive that's valid for 10 minutes.
-
#get_layer_version_policy(params = {}) ⇒ Types::GetLayerVersionPolicyResponse
Returns the permission policy for a version of an [AWS Lambda layer][1].
-
#get_policy(params = {}) ⇒ Types::GetPolicyResponse
Returns the [resource-based IAM policy][1] for a function, version, or alias.
-
#get_provisioned_concurrency_config(params = {}) ⇒ Types::GetProvisionedConcurrencyConfigResponse
Retrieves the provisioned concurrency configuration for a function's alias or version.
-
#invoke(params = {}) ⇒ Types::InvocationResponse
Invokes a Lambda function.
-
#invoke_async(params = {}) ⇒ Types::InvokeAsyncResponse
For asynchronous function invocation, use Invoke.
-
#list_aliases(params = {}) ⇒ Types::ListAliasesResponse
Returns a list of [aliases][1] for a Lambda function.
-
#list_code_signing_configs(params = {}) ⇒ Types::ListCodeSigningConfigsResponse
Returns a list of [code signing configurations][1].
-
#list_event_source_mappings(params = {}) ⇒ Types::ListEventSourceMappingsResponse
Lists event source mappings.
-
#list_function_event_invoke_configs(params = {}) ⇒ Types::ListFunctionEventInvokeConfigsResponse
Retrieves a list of configurations for asynchronous invocation for a function.
-
#list_functions(params = {}) ⇒ Types::ListFunctionsResponse
Returns a list of Lambda functions, with the version-specific configuration of each.
-
#list_functions_by_code_signing_config(params = {}) ⇒ Types::ListFunctionsByCodeSigningConfigResponse
List the functions that use the specified code signing configuration.
-
#list_layer_versions(params = {}) ⇒ Types::ListLayerVersionsResponse
Lists the versions of an [AWS Lambda layer][1].
-
#list_layers(params = {}) ⇒ Types::ListLayersResponse
Lists [AWS Lambda layers][1] and shows information about the latest version of each.
-
#list_provisioned_concurrency_configs(params = {}) ⇒ Types::ListProvisionedConcurrencyConfigsResponse
Retrieves a list of provisioned concurrency configurations for a function.
-
#list_tags(params = {}) ⇒ Types::ListTagsResponse
Returns a function's [tags][1].
-
#list_versions_by_function(params = {}) ⇒ Types::ListVersionsByFunctionResponse
Returns a list of [versions][1], with the version-specific configuration of each.
-
#publish_layer_version(params = {}) ⇒ Types::PublishLayerVersionResponse
Creates an [AWS Lambda layer][1] from a ZIP archive.
-
#publish_version(params = {}) ⇒ Types::FunctionConfiguration
Creates a [version][1] from the current code and configuration of a function.
-
#put_function_code_signing_config(params = {}) ⇒ Types::PutFunctionCodeSigningConfigResponse
Update the code signing configuration for the function.
-
#put_function_concurrency(params = {}) ⇒ Types::Concurrency
Sets the maximum number of simultaneous executions for a function, and reserves capacity for that concurrency level.
-
#put_function_event_invoke_config(params = {}) ⇒ Types::FunctionEventInvokeConfig
Configures options for [asynchronous invocation][1] on a function, version, or alias.
-
#put_provisioned_concurrency_config(params = {}) ⇒ Types::PutProvisionedConcurrencyConfigResponse
Adds a provisioned concurrency configuration to a function's alias or version.
-
#remove_layer_version_permission(params = {}) ⇒ Struct
Removes a statement from the permissions policy for a version of an [AWS Lambda layer][1].
-
#remove_permission(params = {}) ⇒ Struct
Revokes function-use permission from an AWS service or another account.
-
#tag_resource(params = {}) ⇒ Struct
Adds [tags][1] to a function.
-
#untag_resource(params = {}) ⇒ Struct
Removes [tags][1] from a function.
-
#update_alias(params = {}) ⇒ Types::AliasConfiguration
Updates the configuration of a Lambda function [alias][1].
-
#update_code_signing_config(params = {}) ⇒ Types::UpdateCodeSigningConfigResponse
Update the code signing configuration.
-
#update_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Updates an event source mapping.
-
#update_function_code(params = {}) ⇒ Types::FunctionConfiguration
Updates a Lambda function's code.
-
#update_function_configuration(params = {}) ⇒ Types::FunctionConfiguration
Modify the version-specific settings of a Lambda function.
-
#update_function_event_invoke_config(params = {}) ⇒ Types::FunctionEventInvokeConfig
Updates the configuration for asynchronous invocation for a function, version, or alias.
Instance Method Summary collapse
-
#initialize(options) ⇒ Client
constructor
A new instance of Client.
-
#wait_until(waiter_name, params = {}, options = {}) {|w.waiter| ... } ⇒ Boolean
Polls an API operation until a resource enters a desired state.
Methods included from ClientStubs
#api_requests, #stub_data, #stub_responses
Methods inherited from Seahorse::Client::Base
add_plugin, api, clear_plugins, define, new, #operation_names, plugins, remove_plugin, set_api, set_plugins
Methods included from Seahorse::Client::HandlerBuilder
#handle, #handle_request, #handle_response
Constructor Details
#initialize(options) ⇒ Client
Returns a new instance of Client.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 324 def initialize(*args) super end |
Instance Method Details
#add_layer_version_permission(params = {}) ⇒ Types::AddLayerVersionPermissionResponse
Adds permissions to the resource-based policy of a version of an AWS Lambda layer. Use this action to grant layer usage permission to other accounts. You can grant permission to a single account, all AWS accounts, or all accounts in an organization.
To revoke permission, call RemoveLayerVersionPermission with the statement ID that you specified when you added it.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 413 def (params = {}, = {}) req = build_request(:add_layer_version_permission, params) req.send_request() end |
#add_permission(params = {}) ⇒ Types::AddPermissionResponse
Grants an AWS service or another account 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.
To grant permission to another account, specify the account ID as the
Principal
. For AWS services, the principal is a domain-style
identifier defined by the service, like s3.amazonaws.com
or
sns.amazonaws.com
. For AWS 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 action adds a statement to a resource-based permissions policy for the function. For more information about function policies, see Lambda Function Policies.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 556 def (params = {}, = {}) req = build_request(:add_permission, params) req.send_request() end |
#create_alias(params = {}) ⇒ Types::AliasConfiguration
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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 662 def create_alias(params = {}, = {}) req = build_request(:create_alias, params) req.send_request() end |
#create_code_signing_config(params = {}) ⇒ Types::CreateCodeSigningConfigResponse
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).
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 716 def create_code_signing_config(params = {}, = {}) req = build_request(:create_code_signing_config, params) req.send_request() end |
#create_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Creates a mapping between an event source and an AWS Lambda function. Lambda reads items from the event source and triggers the function.
For details about each event source type, see the following topics.
The following error handling options are only available for stream sources (DynamoDB and Kinesis):
BisectBatchOnFunctionError
- If the function returns an error, split the batch in two and retry.DestinationConfig
- Send discarded records to an Amazon SQS queue or Amazon SNS topic.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 expiresMaximumRetryAttempts
- 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.ParallelizationFactor
- Process multiple batches from each shard concurrently.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 995 def create_event_source_mapping(params = {}, = {}) req = build_request(:create_event_source_mapping, params) req.send_request() end |
#create_function(params = {}) ⇒ Types::FunctionConfiguration
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 AWS services, such as Amazon CloudWatch Logs for log streaming and AWS X-Ray for request tracing.
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 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 set of signing profiles, which define the trusted publishers for this function.
If another account or an AWS service invokes your function, use AddPermission to grant permission by creating a resource-based 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 AWS services, create an event source mapping (CreateEventSourceMapping), or configure a function trigger in the other service. For more information, see Invoking Functions.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1385 def create_function(params = {}, = {}) req = build_request(:create_function, params) req.send_request() end |
#delete_alias(params = {}) ⇒ Struct
Deletes a Lambda function alias.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1437 def delete_alias(params = {}, = {}) req = build_request(:delete_alias, params) req.send_request() end |
#delete_code_signing_config(params = {}) ⇒ Struct
Deletes the code signing configuration. You can delete the code signing configuration only if no function is using it.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1460 def delete_code_signing_config(params = {}, = {}) req = build_request(:delete_code_signing_config, params) req.send_request() end |
#delete_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1566 def delete_event_source_mapping(params = {}, = {}) req = build_request(:delete_event_source_mapping, params) req.send_request() end |
#delete_function(params = {}) ⇒ Struct
Deletes a Lambda function. To delete a specific function version, use
the Qualifier
parameter. Otherwise, all versions and aliases are
deleted.
To delete Lambda event source mappings that invoke a function, use DeleteEventSourceMapping. For AWS services and resources that invoke your function directly, delete the trigger in the service where you originally configured it.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1624 def delete_function(params = {}, = {}) req = build_request(:delete_function, params) req.send_request() end |
#delete_function_code_signing_config(params = {}) ⇒ Struct
Removes the code signing configuration from the function.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1658 def delete_function_code_signing_config(params = {}, = {}) req = build_request(:delete_function_code_signing_config, params) req.send_request() end |
#delete_function_concurrency(params = {}) ⇒ Struct
Removes a concurrent execution limit from a function.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1701 def delete_function_concurrency(params = {}, = {}) req = build_request(:delete_function_concurrency, params) req.send_request() end |
#delete_function_event_invoke_config(params = {}) ⇒ Struct
Deletes the configuration for asynchronous invocation for a function, version, or alias.
To configure options for asynchronous invocation, use PutFunctionEventInvokeConfig.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1756 def delete_function_event_invoke_config(params = {}, = {}) req = build_request(:delete_function_event_invoke_config, params) req.send_request() end |
#delete_layer_version(params = {}) ⇒ Struct
Deletes a version of an AWS 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1798 def delete_layer_version(params = {}, = {}) req = build_request(:delete_layer_version, params) req.send_request() end |
#delete_provisioned_concurrency_config(params = {}) ⇒ Struct
Deletes the provisioned concurrency configuration for a function.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1847 def delete_provisioned_concurrency_config(params = {}, = {}) req = build_request(:delete_provisioned_concurrency_config, params) req.send_request() end |
#get_account_settings(params = {}) ⇒ Types::GetAccountSettingsResponse
Retrieves details about your account's limits and usage in an AWS Region.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1901 def get_account_settings(params = {}, = {}) req = build_request(:get_account_settings, params) req.send_request() end |
#get_alias(params = {}) ⇒ Types::AliasConfiguration
Returns details about a Lambda function alias.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 1979 def get_alias(params = {}, = {}) req = build_request(:get_alias, params) req.send_request() end |
#get_code_signing_config(params = {}) ⇒ Types::GetCodeSigningConfigResponse
Returns information about the specified code signing configuration.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2013 def get_code_signing_config(params = {}, = {}) req = build_request(:get_code_signing_config, params) req.send_request() end |
#get_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Returns details about an event source mapping. You can get the identifier of a mapping from the output of ListEventSourceMappings.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2119 def get_event_source_mapping(params = {}, = {}) req = build_request(:get_event_source_mapping, params) req.send_request() end |
#get_function(params = {}) ⇒ Types::GetFunctionResponse
Returns 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.
The following waiters are defined for this operation (see #wait_until for detailed usage):
- function_exists
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2281 def get_function(params = {}, = {}) req = build_request(:get_function, params) req.send_request() end |
#get_function_code_signing_config(params = {}) ⇒ Types::GetFunctionCodeSigningConfigResponse
Returns the code signing configuration for the specified function.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2323 def get_function_code_signing_config(params = {}, = {}) req = build_request(:get_function_code_signing_config, params) req.send_request() end |
#get_function_concurrency(params = {}) ⇒ Types::GetFunctionConcurrencyResponse
Returns details about the reserved concurrency configuration for a function. To set a concurrency limit for a function, use PutFunctionConcurrency.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2379 def get_function_concurrency(params = {}, = {}) req = build_request(:get_function_concurrency, params) req.send_request() end |
#get_function_configuration(params = {}) ⇒ Types::FunctionConfiguration
Returns 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.
The following waiters are defined for this operation (see #wait_until for detailed usage):
- function_active
- function_updated
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2555 def get_function_configuration(params = {}, = {}) req = build_request(:get_function_configuration, params) req.send_request() end |
#get_function_event_invoke_config(params = {}) ⇒ Types::FunctionEventInvokeConfig
Retrieves the configuration for asynchronous invocation for a function, version, or alias.
To configure options for asynchronous invocation, use PutFunctionEventInvokeConfig.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2640 def get_function_event_invoke_config(params = {}, = {}) req = build_request(:get_function_event_invoke_config, params) req.send_request() end |
#get_layer_version(params = {}) ⇒ Types::GetLayerVersionResponse
Returns information about a version of an AWS Lambda layer, with a link to download the layer archive that's valid for 10 minutes.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2725 def get_layer_version(params = {}, = {}) req = build_request(:get_layer_version, params) req.send_request() end |
#get_layer_version_by_arn(params = {}) ⇒ Types::GetLayerVersionResponse
Returns information about a version of an AWS Lambda layer, with a link to download the layer archive that's valid for 10 minutes.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2803 def get_layer_version_by_arn(params = {}, = {}) req = build_request(:get_layer_version_by_arn, params) req.send_request() end |
#get_layer_version_policy(params = {}) ⇒ Types::GetLayerVersionPolicyResponse
Returns the permission policy for a version of an AWS Lambda layer. For more information, see AddLayerVersionPermission.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2842 def get_layer_version_policy(params = {}, = {}) req = build_request(:get_layer_version_policy, params) req.send_request() end |
#get_policy(params = {}) ⇒ Types::GetPolicyResponse
Returns the resource-based IAM policy for a function, version, or alias.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 2911 def get_policy(params = {}, = {}) req = build_request(:get_policy, params) req.send_request() end |
#get_provisioned_concurrency_config(params = {}) ⇒ Types::GetProvisionedConcurrencyConfigResponse
Retrieves the provisioned concurrency configuration for a function's alias or version.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3005 def get_provisioned_concurrency_config(params = {}, = {}) req = build_request(:get_provisioned_concurrency_config, params) req.send_request() end |
#invoke(params = {}) ⇒ Types::InvocationResponse
Invokes a Lambda function. You can invoke a function synchronously
(and wait for the response), or asynchronously. To invoke a function
asynchronously, set InvocationType
to Event
.
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 Retry Behavior.
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, limit errors, or issues
with your function's code and configuration. For example, Lambda
returns TooManyRequestsException
if executing 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 be disconnected 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3171 def invoke(params = {}, = {}) req = build_request(:invoke, params) req.send_request() end |
#invoke_async(params = {}) ⇒ Types::InvokeAsyncResponse
For asynchronous function invocation, use Invoke.
Invokes a function asynchronously.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3232 def invoke_async(params = {}, = {}) req = build_request(:invoke_async, params) req.send_request() end |
#list_aliases(params = {}) ⇒ Types::ListAliasesResponse
Returns a list of aliases for a Lambda function.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3335 def list_aliases(params = {}, = {}) req = build_request(:list_aliases, params) req.send_request() end |
#list_code_signing_configs(params = {}) ⇒ Types::ListCodeSigningConfigsResponse
Returns 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.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3385 def list_code_signing_configs(params = {}, = {}) req = build_request(:list_code_signing_configs, params) req.send_request() end |
#list_event_source_mappings(params = {}) ⇒ Types::ListEventSourceMappingsResponse
Lists event source mappings. Specify an EventSourceArn
to only show
event source mappings for a single event source.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3509 def list_event_source_mappings(params = {}, = {}) req = build_request(:list_event_source_mappings, params) req.send_request() end |
#list_function_event_invoke_configs(params = {}) ⇒ Types::ListFunctionEventInvokeConfigsResponse
Retrieves a list of configurations for asynchronous invocation for a function.
To configure options for asynchronous invocation, use PutFunctionEventInvokeConfig.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3599 def list_function_event_invoke_configs(params = {}, = {}) req = build_request(:list_function_event_invoke_configs, params) req.send_request() end |
#list_functions(params = {}) ⇒ Types::ListFunctionsResponse
Returns 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. To get more
information about a function or version, use GetFunction.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3761 def list_functions(params = {}, = {}) req = build_request(:list_functions, params) req.send_request() end |
#list_functions_by_code_signing_config(params = {}) ⇒ Types::ListFunctionsByCodeSigningConfigResponse
List 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.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3805 def list_functions_by_code_signing_config(params = {}, = {}) req = build_request(:list_functions_by_code_signing_config, params) req.send_request() end |
#list_layer_versions(params = {}) ⇒ Types::ListLayerVersionsResponse
Lists the versions of an AWS 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.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3897 def list_layer_versions(params = {}, = {}) req = build_request(:list_layer_versions, params) req.send_request() end |
#list_layers(params = {}) ⇒ Types::ListLayersResponse
Lists AWS 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.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 3982 def list_layers(params = {}, = {}) req = build_request(:list_layers, params) req.send_request() end |
#list_provisioned_concurrency_configs(params = {}) ⇒ Types::ListProvisionedConcurrencyConfigsResponse
Retrieves a list of provisioned concurrency configurations for a function.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4074 def list_provisioned_concurrency_configs(params = {}, = {}) req = build_request(:list_provisioned_concurrency_configs, params) req.send_request() end |
#list_tags(params = {}) ⇒ Types::ListTagsResponse
Returns a function's tags. You can also view tags with GetFunction.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4125 def (params = {}, = {}) req = build_request(:list_tags, params) req.send_request() end |
#list_versions_by_function(params = {}) ⇒ Types::ListVersionsByFunctionResponse
Returns a list of versions, with the version-specific configuration of each. Lambda returns up to 50 versions per call.
The returned response is a pageable response and is Enumerable. For details on usage see PageableResponse.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4298 def list_versions_by_function(params = {}, = {}) req = build_request(:list_versions_by_function, params) req.send_request() end |
#publish_layer_version(params = {}) ⇒ Types::PublishLayerVersionResponse
Creates an AWS 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4430 def publish_layer_version(params = {}, = {}) req = build_request(:publish_layer_version, params) req.send_request() end |
#publish_version(params = {}) ⇒ Types::FunctionConfiguration
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.
AWS 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4622 def publish_version(params = {}, = {}) req = build_request(:publish_version, params) req.send_request() end |
#put_function_code_signing_config(params = {}) ⇒ Types::PutFunctionCodeSigningConfigResponse
Update 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4670 def put_function_code_signing_config(params = {}, = {}) req = build_request(:put_function_code_signing_config, params) req.send_request() end |
#put_function_concurrency(params = {}) ⇒ Types::Concurrency
Sets 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 Managing Concurrency.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4746 def put_function_concurrency(params = {}, = {}) req = build_request(:put_function_concurrency, params) req.send_request() end |
#put_function_event_invoke_config(params = {}) ⇒ Types::FunctionEventInvokeConfig
Configures 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, 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4881 def put_function_event_invoke_config(params = {}, = {}) req = build_request(:put_function_event_invoke_config, params) req.send_request() end |
#put_provisioned_concurrency_config(params = {}) ⇒ Types::PutProvisionedConcurrencyConfigResponse
Adds a provisioned concurrency configuration to a function's alias or version.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 4960 def put_provisioned_concurrency_config(params = {}, = {}) req = build_request(:put_provisioned_concurrency_config, params) req.send_request() end |
#remove_layer_version_permission(params = {}) ⇒ Struct
Removes a statement from the permissions policy for a version of an AWS Lambda layer. For more information, see AddLayerVersionPermission.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5013 def (params = {}, = {}) req = build_request(:remove_layer_version_permission, params) req.send_request() end |
#remove_permission(params = {}) ⇒ Struct
Revokes function-use permission from an AWS service or another account. You can get the ID of the statement from the output of GetPolicy.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5078 def (params = {}, = {}) req = build_request(:remove_permission, params) req.send_request() end |
#tag_resource(params = {}) ⇒ Struct
Adds tags to a function.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5123 def tag_resource(params = {}, = {}) req = build_request(:tag_resource, params) req.send_request() end |
#untag_resource(params = {}) ⇒ Struct
Removes tags from a function.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5165 def untag_resource(params = {}, = {}) req = build_request(:untag_resource, params) req.send_request() end |
#update_alias(params = {}) ⇒ Types::AliasConfiguration
Updates the configuration of a Lambda function alias.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5280 def update_alias(params = {}, = {}) req = build_request(:update_alias, params) req.send_request() end |
#update_code_signing_config(params = {}) ⇒ Types::UpdateCodeSigningConfigResponse
Update 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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5332 def update_code_signing_config(params = {}, = {}) req = build_request(:update_code_signing_config, params) req.send_request() end |
#update_event_source_mapping(params = {}) ⇒ Types::EventSourceMappingConfiguration
Updates an event source mapping. You can change the function that AWS Lambda invokes, or pause invocation and resume later from the same location.
The following error handling options are only available for stream sources (DynamoDB and Kinesis):
BisectBatchOnFunctionError
- If the function returns an error, split the batch in two and retry.DestinationConfig
- Send discarded records to an Amazon SQS queue or Amazon SNS topic.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 expiresMaximumRetryAttempts
- 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.ParallelizationFactor
- Process multiple batches from each shard concurrently.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5554 def update_event_source_mapping(params = {}, = {}) req = build_request(:update_event_source_mapping, params) req.send_request() end |
#update_function_code(params = {}) ⇒ Types::FunctionConfiguration
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.
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.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 5760 def update_function_code(params = {}, = {}) req = build_request(:update_function_code, params) req.send_request() end |
#update_function_configuration(params = {}) ⇒ Types::FunctionConfiguration
Modify 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 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 account or AWS service, use AddPermission.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 6056 def update_function_configuration(params = {}, = {}) req = build_request(:update_function_configuration, params) req.send_request() end |
#update_function_event_invoke_config(params = {}) ⇒ Types::FunctionEventInvokeConfig
Updates the configuration for asynchronous invocation for a function, version, or alias.
To configure options for asynchronous invocation, use PutFunctionEventInvokeConfig.
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 6177 def update_function_event_invoke_config(params = {}, = {}) req = build_request(:update_function_event_invoke_config, params) req.send_request() end |
#wait_until(waiter_name, params = {}, options = {}) {|w.waiter| ... } ⇒ Boolean
Polls an API operation until a resource enters a desired state.
Basic Usage
A waiter will call an API operation until:
- It is successful
- It enters a terminal state
- It makes the maximum number of attempts
In between attempts, the waiter will sleep.
# polls in a loop, sleeping between attempts
client.wait_until(waiter_name, params)
Configuration
You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. You can pass configuration as the final arguments hash.
# poll for ~25 seconds
client.wait_until(waiter_name, params, {
max_attempts: 5,
delay: 5,
})
Callbacks
You can be notified before each polling attempt and before each
delay. If you throw :success
or :failure
from these callbacks,
it will terminate the waiter.
started_at = Time.now
client.wait_until(waiter_name, params, {
# disable max attempts
max_attempts: nil,
# poll for 1 hour, instead of a number of attempts
before_wait: -> (attempts, response) do
throw :failure if Time.now - started_at > 3600
end
})
Handling Errors
When a waiter is unsuccessful, it will raise an error. All of the failure errors extend from Waiters::Errors::WaiterFailed.
begin
client.wait_until(...)
rescue Aws::Waiters::Errors::WaiterFailed
# resource did not enter the desired state in time
end
Valid Waiters
The following table lists the valid waiter names, the operations they call,
and the default :delay
and :max_attempts
values.
waiter_name | params | :delay | :max_attempts |
---|---|---|---|
function_active | #get_function_configuration | 5 | 60 |
function_exists | #get_function | 1 | 20 |
function_updated | #get_function_configuration | 5 | 60 |
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# File 'gems/aws-sdk-lambda/lib/aws-sdk-lambda/client.rb', line 6289 def wait_until(waiter_name, params = {}, = {}) w = waiter(waiter_name, ) yield(w.waiter) if block_given? # deprecated w.wait(params) end |