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Lambda

Client

AsyncLambdaClient 

AsyncLambdaClient(config: AsyncLambdaConfig | None = None, plugins: list[Plugin] | None = None)

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

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.

Parameters:

Name Type Description Default
config AsyncLambdaConfig | None

Optional configuration for the client. Here you can set things like the endpoint for HTTP services or auth credentials.

 None
plugins list[Plugin] | None

A list of callables applied once to the client's base configuration. Their changes are inherited by every operation invocation.

 None

close async 

close() -> None

Close this client and any resources held by its transport.

Operations

Configuration

AsyncLambdaConfig dataclass 

AsyncLambdaConfig()

Bases: AsyncAwsConfig

Lambda configuration (async-resolved).

Attributes

auth_scheme_resolver class-attribute instance-attribute 
auth_scheme_resolver: HTTPAuthSchemeResolver | None = None

An auth scheme resolver that determines the auth scheme for each operation.

auth_schemes class-attribute instance-attribute 
auth_schemes: dict[ShapeID, AuthScheme[Any, Any, Any, Any]] | None = None

A map of auth scheme ids to auth schemes.

aws_access_key_id class-attribute instance-attribute 
aws_access_key_id: str | None = None

The identifier for a secret access key.

aws_credentials_identity_resolver class-attribute instance-attribute 
aws_credentials_identity_resolver: IdentityResolver[AWSCredentialsIdentity, AWSIdentityProperties] | None = None

Resolves AWS Credentials. Required for operations that use Sigv4 Auth.

aws_secret_access_key class-attribute instance-attribute 
aws_secret_access_key: str | None = None

A secret access key that can be used to sign requests.

aws_session_token class-attribute instance-attribute 
aws_session_token: str | None = None

The session token used with temporary AWS credentials.

endpoint_resolver class-attribute instance-attribute 
endpoint_resolver: EndpointResolver | None = None

The endpoint resolver used to resolve the final endpoint per-operation based on the configuration.

interceptors class-attribute instance-attribute 
interceptors: list[_ServiceInterceptor] = field(default_factory=lambda: [])

The list of interceptors, which are hooks that are called during the execution of a request.

protocol class-attribute instance-attribute 
protocol: ClientProtocol[Any, Any] | None = None

The protocol to serialize and deserialize requests with.

region class-attribute instance-attribute 
region: str | None = None

The AWS region to connect to. The configured region is used to determine the service endpoint.

sdk_ua_app_id class-attribute instance-attribute 
sdk_ua_app_id: str | None = None

A unique and opaque application ID that is appended to the User-Agent header.

user_agent_extra class-attribute instance-attribute 
user_agent_extra: str | None = None

Additional suffix to be added to the User-Agent header.

Methods:

resolve async classmethod 
resolve(*, profile: str | None = None, fs: FileSystem | None = None, config_file_path: str | None = None, credentials_file_path: str | None = None, **overrides: Unpack[_AsyncLambdaConfigOverrides]) -> Self

Resolve config from environment, config files, defaults, and explicit overrides.

set_auth_scheme 
set_auth_scheme(scheme: AuthScheme[Any, Any, Any, Any]) -> None

Set an auth scheme implementation using its scheme ID. :param scheme: The auth scheme to add or replace.

Plugin module-attribute 

Plugin: TypeAlias = Callable[[AsyncLambdaConfig], None]

A callable that customizes a client configuration. Service-level plugins are applied once to the base configuration inherited by every operation. Operation-level plugins apply only to a single operation invocation.

Structures

Errors

Unions

Enums