com.amazonaws.services.lambda

Interface AWSLambda

All Known Subinterfaces:

AWSLambdaAsync

All Known Implementing Classes:

AbstractAWSLambda, AbstractAWSLambdaAsync, AWSLambdaAsyncClient, AWSLambdaClient

public interface AWSLambda

Interface for accessing AWS Lambda.

AWS Lambda

Overview

This is the AWS Lambda API Reference. The AWS Lambda Developer Guide provides additional information. For the service overview, go to What is AWS Lambda, and for information about how the service works, go to AWS Lambda: How it Works in the AWS Lambda Developer Guide.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ENDPOINT_PREFIX The region metadata service name for computing region endpoints.

Method Summary

Modifier and Type	Method and Description
AddPermissionResult	addPermission(AddPermissionRequest addPermissionRequest) Adds a permission to the resource policy associated with the specified AWS Lambda function.
CreateAliasResult	createAlias(CreateAliasRequest createAliasRequest) Creates an alias that points to the specified Lambda function version.
CreateEventSourceMappingResult	createEventSourceMapping(CreateEventSourceMappingRequest createEventSourceMappingRequest) Identifies a stream as an event source for a Lambda function.
CreateFunctionResult	createFunction(CreateFunctionRequest createFunctionRequest) Creates a new Lambda function.
DeleteAliasResult	deleteAlias(DeleteAliasRequest deleteAliasRequest) Deletes the specified Lambda function alias.
DeleteEventSourceMappingResult	deleteEventSourceMapping(DeleteEventSourceMappingRequest deleteEventSourceMappingRequest) Removes an event source mapping.
DeleteFunctionResult	deleteFunction(DeleteFunctionRequest deleteFunctionRequest) Deletes the specified Lambda function code and configuration.
GetAliasResult	getAlias(GetAliasRequest getAliasRequest) Returns the specified alias information such as the alias ARN, description, and function version it is pointing to.
ResponseMetadata	getCachedResponseMetadata(AmazonWebServiceRequest request) Returns additional metadata for a previously executed successful request, typically used for debugging issues where a service isn't acting as expected.
GetEventSourceMappingResult	getEventSourceMapping(GetEventSourceMappingRequest getEventSourceMappingRequest) Returns configuration information for the specified event source mapping (see CreateEventSourceMapping).
GetFunctionResult	getFunction(GetFunctionRequest getFunctionRequest) Returns the configuration information of the Lambda function and a presigned URL link to the .zip file you uploaded with CreateFunction so you can download the .zip file.
GetFunctionConfigurationResult	getFunctionConfiguration(GetFunctionConfigurationRequest getFunctionConfigurationRequest) Returns the configuration information of the Lambda function.
GetPolicyResult	getPolicy(GetPolicyRequest getPolicyRequest) Returns the resource policy associated with the specified Lambda function.
InvokeResult	invoke(InvokeRequest invokeRequest) Invokes a specific Lambda function.
InvokeAsyncResult	invokeAsync(InvokeAsyncRequest invokeAsyncRequest) Deprecated.
ListAliasesResult	listAliases(ListAliasesRequest listAliasesRequest) Returns list of aliases created for a Lambda function.
ListEventSourceMappingsResult	listEventSourceMappings() Simplified method form for invoking the ListEventSourceMappings operation.
ListEventSourceMappingsResult	listEventSourceMappings(ListEventSourceMappingsRequest listEventSourceMappingsRequest) Returns a list of event source mappings you created using the CreateEventSourceMapping (see CreateEventSourceMapping).
ListFunctionsResult	listFunctions() Simplified method form for invoking the ListFunctions operation.
ListFunctionsResult	listFunctions(ListFunctionsRequest listFunctionsRequest) Returns a list of your Lambda functions.
ListVersionsByFunctionResult	listVersionsByFunction(ListVersionsByFunctionRequest listVersionsByFunctionRequest) List all versions of a function.
PublishVersionResult	publishVersion(PublishVersionRequest publishVersionRequest) Publishes a version of your function from the current snapshot of $LATEST.
RemovePermissionResult	removePermission(RemovePermissionRequest removePermissionRequest) You can remove individual permissions from an resource policy associated with a Lambda function by providing a statement ID that you provided when you added the permission.
void	setEndpoint(String endpoint) Overrides the default endpoint for this client ("lambda.us-east-1.amazonaws.com").
void	setRegion(Region region) An alternative to setEndpoint(String), sets the regional endpoint for this client's service calls.
void	shutdown() Shuts down this client object, releasing any resources that might be held open.
UpdateAliasResult	updateAlias(UpdateAliasRequest updateAliasRequest) Using this API you can update the function version to which the alias points and the alias description.
UpdateEventSourceMappingResult	updateEventSourceMapping(UpdateEventSourceMappingRequest updateEventSourceMappingRequest) You can update an event source mapping.
UpdateFunctionCodeResult	updateFunctionCode(UpdateFunctionCodeRequest updateFunctionCodeRequest) Updates the code for the specified Lambda function.
UpdateFunctionConfigurationResult	updateFunctionConfiguration(UpdateFunctionConfigurationRequest updateFunctionConfigurationRequest) Updates the configuration parameters for the specified Lambda function by using the values provided in the request.

Field Detail

ENDPOINT_PREFIX

static final String ENDPOINT_PREFIX

The region metadata service name for computing region endpoints. You can use this value to retrieve metadata (such as supported regions) of the service.

See Also:

RegionUtils.getRegionsForService(String), Constant Field Values

Method Detail

setEndpoint

void setEndpoint(String endpoint)

Overrides the default endpoint for this client ("lambda.us-east-1.amazonaws.com"). Callers can use this method to control which AWS region they want to work with.

Callers can pass in just the endpoint (ex: "lambda.us-east-1.amazonaws.com") or a full URL, including the protocol (ex: "lambda.us-east-1.amazonaws.com"). If the protocol is not specified here, the default protocol from this client's ClientConfiguration will be used, which by default is HTTPS.

For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available endpoints for all AWS services, see: http://developer.amazonwebservices.com/connect/entry.jspa?externalID= 3912

This method is not threadsafe. An endpoint should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.

Parameters:

endpoint - The endpoint (ex: "lambda.us-east-1.amazonaws.com") or a full URL, including the protocol (ex: "lambda.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will communicate with.

setRegion

void setRegion(Region region)

An alternative to setEndpoint(String), sets the regional endpoint for this client's service calls. Callers can use this method to control which AWS region they want to work with.

By default, all service endpoints in all regions use the https protocol. To use http instead, specify it in the ClientConfiguration supplied at construction.

This method is not threadsafe. A region should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.

Parameters:

region - The region this client will communicate with. See Region.getRegion(com.amazonaws.regions.Regions) for accessing a given region. Must not be null and must be a region where the service is available.

See Also:

Region.getRegion(com.amazonaws.regions.Regions), Region.createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration), Region.isServiceSupported(String)

addPermission

AddPermissionResult addPermission(AddPermissionRequest addPermissionRequest)

Adds a permission to the resource policy associated with the specified AWS Lambda function. You use resource policies to grant permissions to event sources that use push model. In a push model, event sources (such as Amazon S3 and custom applications) invoke your Lambda function. Each permission you add to the resource policy allows an event source, permission to invoke the Lambda function.

For information about the push model, see AWS Lambda: How it Works.

If you are using versioning, the permissions you add are specific to the Lambda function version or alias you specify in the AddPermission request via the Qualifier parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:AddPermission action.

Parameters:

addPermissionRequest -

Returns:

Result of the AddPermission operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

ResourceConflictException - The resource already exists.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

PolicyLengthExceededException - Lambda function access policy is limited to 20 KB.

TooManyRequestsException

createAlias

CreateAliasResult createAlias(CreateAliasRequest createAliasRequest)

Creates an alias that points to the specified Lambda function version. For more information, see Introduction to AWS Lambda Aliases.

Alias names are unique for a given function. This requires permission for the lambda:CreateAlias action.

Parameters:

createAliasRequest -

Returns:

Result of the CreateAlias operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

ResourceConflictException - The resource already exists.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

createEventSourceMapping

CreateEventSourceMappingResult createEventSourceMapping(CreateEventSourceMappingRequest createEventSourceMappingRequest)

Identifies a stream as an event source for a Lambda function. It can be either an Amazon Kinesis stream or an Amazon DynamoDB stream. AWS Lambda invokes the specified function when records are posted to the stream.

This association between a stream source and a Lambda function is called the event source mapping.

This event source mapping is relevant only in the AWS Lambda pull model, where AWS Lambda invokes the function. For more information, go to AWS Lambda: How it Works in the AWS Lambda Developer Guide.

You provide mapping information (for example, which stream to read from and which Lambda function to invoke) in the request body.

Each event source, such as an Amazon Kinesis or a DynamoDB stream, can be associated with multiple AWS Lambda function. A given Lambda function can be associated with multiple AWS event sources.

If you are using versioning, you can specify a specific function version or an alias via the function name parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:CreateEventSourceMapping action.

Parameters:

createEventSourceMappingRequest -

Returns:

Result of the CreateEventSourceMapping operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

ResourceConflictException - The resource already exists.

TooManyRequestsException

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

createFunction

CreateFunctionResult createFunction(CreateFunctionRequest createFunctionRequest)

Creates a new Lambda function. The function metadata is created from the request parameters, and the code for the function is provided by a .zip file in the request body. If the function name already exists, the operation will fail. Note that the function name is case-sensitive.

If you are using versioning, you can also publish a version of the Lambda function you are creating using the Publish parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:CreateFunction action.

Parameters:

createFunctionRequest -

Returns:

Result of the CreateFunction operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

ResourceConflictException - The resource already exists.

TooManyRequestsException

CodeStorageExceededException - You have exceeded your maximum total code size per account. Limits

deleteAlias

DeleteAliasResult deleteAlias(DeleteAliasRequest deleteAliasRequest)

Deletes the specified Lambda function alias. For more information, see Introduction to AWS Lambda Aliases.

This requires permission for the lambda:DeleteAlias action.

Parameters:

deleteAliasRequest -

Returns:

Result of the DeleteAlias operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

deleteEventSourceMapping

DeleteEventSourceMappingResult deleteEventSourceMapping(DeleteEventSourceMappingRequest deleteEventSourceMappingRequest)

Removes an event source mapping. This means AWS Lambda will no longer invoke the function for events in the associated source.

This operation requires permission for the lambda:DeleteEventSourceMapping action.

Parameters:

deleteEventSourceMappingRequest -

Returns:

Result of the DeleteEventSourceMapping operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

deleteFunction

DeleteFunctionResult deleteFunction(DeleteFunctionRequest deleteFunctionRequest)

Deletes the specified Lambda function code and configuration.

If you are using the versioning feature and you don't specify a function version in your DeleteFunction request, AWS Lambda will delete the function, including all its versions, and any aliases pointing to the function versions. To delete a specific function version, you must provide the function version via the Qualifier parameter. For information about function versioning, see AWS Lambda Function Versioning and Aliases.

When you delete a function the associated resource policy is also deleted. You will need to delete the event source mappings explicitly.

This operation requires permission for the lambda:DeleteFunction action.

Parameters:

deleteFunctionRequest -

Returns:

Result of the DeleteFunction operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

TooManyRequestsException

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

ResourceConflictException - The resource already exists.

getAlias

GetAliasResult getAlias(GetAliasRequest getAliasRequest)

Returns the specified alias information such as the alias ARN, description, and function version it is pointing to. For more information, see Introduction to AWS Lambda Aliases.

This requires permission for the lambda:GetAlias action.

Parameters:

getAliasRequest -

Returns:

Result of the GetAlias operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

getEventSourceMapping

GetEventSourceMappingResult getEventSourceMapping(GetEventSourceMappingRequest getEventSourceMappingRequest)

Returns configuration information for the specified event source mapping (see CreateEventSourceMapping).

This operation requires permission for the lambda:GetEventSourceMapping action.

Parameters:

getEventSourceMappingRequest -

Returns:

Result of the GetEventSourceMapping operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

getFunction

GetFunctionResult getFunction(GetFunctionRequest getFunctionRequest)

Returns the configuration information of the Lambda function and a presigned URL link to the .zip file you uploaded with CreateFunction so you can download the .zip file. Note that the URL is valid for up to 10 minutes. The configuration information is the same information you provided as parameters when uploading the function.

Using the optional Qualifier parameter, you can specify a specific function version for which you want this information. If you don't specify this parameter, the API uses unqualified function ARN which return information about the $LATEST version of the Lambda function. For more information, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:GetFunction action.

Parameters:

getFunctionRequest -

Returns:

Result of the GetFunction operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

TooManyRequestsException

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

getFunctionConfiguration

GetFunctionConfigurationResult getFunctionConfiguration(GetFunctionConfigurationRequest getFunctionConfigurationRequest)

Returns the configuration information of the Lambda function. This the same information you provided as parameters when uploading the function by using CreateFunction.

If you are using the versioning feature, you can retrieve this information for a specific function version by using the optional Qualifier parameter and specifying the function version or alias that points to it. If you don't provide it, the API returns information about the $LATEST version of the function. For more information about versioning, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:GetFunctionConfiguration operation.

Parameters:

getFunctionConfigurationRequest -

Returns:

Result of the GetFunctionConfiguration operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

TooManyRequestsException

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

getPolicy

GetPolicyResult getPolicy(GetPolicyRequest getPolicyRequest)

Returns the resource policy associated with the specified Lambda function.

If you are using the versioning feature, you can get the resource policy associated with the specific Lambda function version or alias by specifying the version or alias name using the Qualifier parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases.

For information about adding permissions, see AddPermission.

You need permission for the lambda:GetPolicy action.

Parameters:

getPolicyRequest -

Returns:

Result of the GetPolicy operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

TooManyRequestsException

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

invoke

InvokeResult invoke(InvokeRequest invokeRequest)

Invokes a specific Lambda function.

If you are using the versioning feature, you can invoke the specific function version by providing function version or alias name that is pointing to the function version using the Qualifier parameter in the request. If you don't provide the Qualifier parameter, the $LATEST version of the Lambda function is invoked. Invocations occur at least once in response to an event and functions must be idempotent to handle this. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:InvokeFunction action.

Parameters:

invokeRequest -

Returns:

Result of the Invoke operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidRequestContentException - The request body could not be parsed as JSON.

RequestTooLargeException - The request payload exceeded the Invoke request body JSON input limit. For more information, see Limits.

UnsupportedMediaTypeException - The content type of the Invoke request body is not JSON.

TooManyRequestsException

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

EC2UnexpectedException - AWS Lambda received an unexpected EC2 client exception while setting up for the Lambda function.

SubnetIPAddressLimitReachedException - AWS Lambda was not able to set up VPC access for the Lambda function because one or more configured subnets has no available IP addresses.

ENILimitReachedException - AWS Lambda was not able to create an Elastic Network Interface (ENI) in the VPC, specified as part of Lambda function configuration, because the limit for network interfaces has been reached.

EC2ThrottledException - AWS Lambda was throttled by Amazon EC2 during Lambda function initialization using the execution role provided for the Lambda function.

EC2AccessDeniedException

InvalidSubnetIDException - The Subnet ID provided in the Lambda function VPC configuration is invalid.

InvalidSecurityGroupIDException - The Security Group ID provided in the Lambda function VPC configuration is invalid.

InvalidZipFileException - AWS Lambda could not unzip the function zip file.

invokeAsync

@Deprecated
InvokeAsyncResult invokeAsync(InvokeAsyncRequest invokeAsyncRequest)

Deprecated.

This API is deprecated. We recommend you use Invoke API (see Invoke).

Submits an invocation request to AWS Lambda. Upon receiving the request, Lambda executes the specified function asynchronously. To see the logs generated by the Lambda function execution, see the CloudWatch Logs console.

This operation requires permission for the lambda:InvokeFunction action.

Parameters:

invokeAsyncRequest -

Returns:

Result of the InvokeAsync operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidRequestContentException - The request body could not be parsed as JSON.

listAliases

ListAliasesResult listAliases(ListAliasesRequest listAliasesRequest)

Returns list of aliases created for a Lambda function. For each alias, the response includes information such as the alias ARN, description, alias name, and the function version to which it points. For more information, see Introduction to AWS Lambda Aliases.

This requires permission for the lambda:ListAliases action.

Parameters:

listAliasesRequest -

Returns:

Result of the ListAliases operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

listEventSourceMappings

ListEventSourceMappingsResult listEventSourceMappings(ListEventSourceMappingsRequest listEventSourceMappingsRequest)

Returns a list of event source mappings you created using the CreateEventSourceMapping (see CreateEventSourceMapping).

For each mapping, the API returns configuration information. You can optionally specify filters to retrieve specific event source mappings.

If you are using the versioning feature, you can get list of event source mappings for a specific Lambda function version or an alias as described in the FunctionName parameter. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:ListEventSourceMappings action.

Parameters:

listEventSourceMappingsRequest -

Returns:

Result of the ListEventSourceMappings operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

listEventSourceMappings

ListEventSourceMappingsResult listEventSourceMappings()

Simplified method form for invoking the ListEventSourceMappings operation.

See Also:

listEventSourceMappings(ListEventSourceMappingsRequest)

listFunctions

ListFunctionsResult listFunctions(ListFunctionsRequest listFunctionsRequest)

Returns a list of your Lambda functions. For each function, the response includes the function configuration information. You must use GetFunction to retrieve the code for your function.

This operation requires permission for the lambda:ListFunctions action.

If you are using versioning feature, the response returns list of $LATEST versions of your functions. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

Parameters:

listFunctionsRequest -

Returns:

Result of the ListFunctions operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

TooManyRequestsException

listFunctions

ListFunctionsResult listFunctions()

Simplified method form for invoking the ListFunctions operation.

See Also:

listFunctions(ListFunctionsRequest)

listVersionsByFunction

ListVersionsByFunctionResult listVersionsByFunction(ListVersionsByFunctionRequest listVersionsByFunctionRequest)

List all versions of a function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

Parameters:

listVersionsByFunctionRequest -

Returns:

Result of the ListVersionsByFunction operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

publishVersion

PublishVersionResult publishVersion(PublishVersionRequest publishVersionRequest)

Publishes a version of your function from the current snapshot of $LATEST. That is, AWS Lambda takes a snapshot of the function code and configuration information from $LATEST and publishes a new version. The code and configuration cannot be modified after publication. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

Parameters:

publishVersionRequest -

Returns:

Result of the PublishVersion operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

CodeStorageExceededException - You have exceeded your maximum total code size per account. Limits

removePermission

RemovePermissionResult removePermission(RemovePermissionRequest removePermissionRequest)

You can remove individual permissions from an resource policy associated with a Lambda function by providing a statement ID that you provided when you added the permission.

If you are using versioning, the permissions you remove are specific to the Lambda function version or alias you specify in the AddPermission request via the Qualifier parameter. For more information about versioning, see AWS Lambda Function Versioning and Aliases.

Note that removal of a permission will cause an active event source to lose permission to the function.

You need permission for the lambda:RemovePermission action.

Parameters:

removePermissionRequest -

Returns:

Result of the RemovePermission operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

updateAlias

UpdateAliasResult updateAlias(UpdateAliasRequest updateAliasRequest)

Using this API you can update the function version to which the alias points and the alias description. For more information, see Introduction to AWS Lambda Aliases.

This requires permission for the lambda:UpdateAlias action.

Parameters:

updateAliasRequest -

Returns:

Result of the UpdateAlias operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

updateEventSourceMapping

UpdateEventSourceMappingResult updateEventSourceMapping(UpdateEventSourceMappingRequest updateEventSourceMappingRequest)

You can update an event source mapping. This is useful if you want to change the parameters of the existing mapping without losing your position in the stream. You can change which function will receive the stream records, but to change the stream itself, you must create a new mapping.

If you are using the versioning feature, you can update the event source mapping to map to a specific Lambda function version or alias as described in the FunctionName parameter. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

If you disable the event source mapping, AWS Lambda stops polling. If you enable again, it will resume polling from the time it had stopped polling, so you don't lose processing of any records. However, if you delete event source mapping and create it again, it will reset.

This operation requires permission for the lambda:UpdateEventSourceMapping action.

Parameters:

updateEventSourceMappingRequest -

Returns:

Result of the UpdateEventSourceMapping operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

ResourceConflictException - The resource already exists.

updateFunctionCode

UpdateFunctionCodeResult updateFunctionCode(UpdateFunctionCodeRequest updateFunctionCodeRequest)

Updates the code for the specified Lambda function. This operation must only be used on an existing Lambda function and cannot be used to update the function configuration.

If you are using the versioning feature, note this API will always update the $LATEST version of your Lambda function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:UpdateFunctionCode action.

Parameters:

updateFunctionCodeRequest -

Returns:

Result of the UpdateFunctionCode operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

CodeStorageExceededException - You have exceeded your maximum total code size per account. Limits

updateFunctionConfiguration

UpdateFunctionConfigurationResult updateFunctionConfiguration(UpdateFunctionConfigurationRequest updateFunctionConfigurationRequest)

Updates the configuration parameters for the specified Lambda function by using the values provided in the request. You provide only the parameters you want to change. This operation must only be used on an existing Lambda function and cannot be used to update the function's code.

If you are using the versioning feature, note this API will always update the $LATEST version of your Lambda function. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.

This operation requires permission for the lambda:UpdateFunctionConfiguration action.

Parameters:

updateFunctionConfigurationRequest -

Returns:

Result of the UpdateFunctionConfiguration operation returned by the service.

Throws:

ServiceException - The AWS Lambda service encountered an internal error.

ResourceNotFoundException - The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

InvalidParameterValueException - One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

TooManyRequestsException

shutdown

void shutdown()

Shuts down this client object, releasing any resources that might be held open. This is an optional method, and callers are not expected to call it, but can if they want to explicitly release any open resources. Once a client has been shutdown, it should not be used to make any more requests.

getCachedResponseMetadata

ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)

Returns additional metadata for a previously executed successful request, typically used for debugging issues where a service isn't acting as expected. This data isn't considered part of the result data returned by an operation, so it's available through this separate, diagnostic interface.

Response metadata is only cached for a limited period of time, so if you need to access this extra diagnostic information for an executed request, you should use this method to retrieve it as soon as possible after executing a request.

Parameters:

request - The originally executed request.

Returns:

The response metadata for the specified request, or null if none is available.