GetFunction
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.
Request Syntax
GET /2015-03-31/functions/FunctionName?Qualifier=Qualifier HTTP/1.1URI Request Parameters
The request uses the following URI parameters.
- FunctionName
The name or ARN of the Lambda function, version, or alias.
Name formats
Function name –
my-function(name-only),my-function:v1(with alias).Function ARN –
arn:aws:lambda:us-west-2:123456789012:function:my-function.Partial ARN –
123456789012:function:my-function.
You can append a version number or alias to any of the formats. The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.
Length Constraints: Minimum length of 1. Maximum length of 170.
Pattern:
(arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}(-gov)?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_\.]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?Required: Yes
- Qualifier
Specify a version or alias to get details about a published version of the function.
Length Constraints: Minimum length of 1. Maximum length of 128.
Pattern:
(|[a-zA-Z0-9$_-]+)
Request Body
The request does not have a request body.
Response Syntax
HTTP/1.1 200Content-type: application/json{ "Code":{ "ImageUri": "string", "Location": "string", "RepositoryType": "string", "ResolvedImageUri": "string", "SourceKMSKeyArn": "string" }, "Concurrency":{ "ReservedConcurrentExecutions":number }, "Configuration":{ "Architectures": [ "string" ], "CodeSha256": "string", "CodeSize":number, "DeadLetterConfig":{ "TargetArn": "string" }, "Description": "string", "Environment":{ "Error":{ "ErrorCode": "string", "Message": "string" }, "Variables":{ "string" : "string" } }, "EphemeralStorage":{ "Size":number }, "FileSystemConfigs": [{ "Arn": "string", "LocalMountPath": "string" } ], "FunctionArn": "string", "FunctionName": "string", "Handler": "string", "ImageConfigResponse":{ "Error":{ "ErrorCode": "string", "Message": "string" }, "ImageConfig":{ "Command": [ "string" ], "EntryPoint": [ "string" ], "WorkingDirectory": "string" } }, "KMSKeyArn": "string", "LastModified": "string", "LastUpdateStatus": "string", "LastUpdateStatusReason": "string", "LastUpdateStatusReasonCode": "string", "Layers": [{ "Arn": "string", "CodeSize":number, "SigningJobArn": "string", "SigningProfileVersionArn": "string" } ], "LoggingConfig":{ "ApplicationLogLevel": "string", "LogFormat": "string", "LogGroup": "string", "SystemLogLevel": "string" }, "MasterArn": "string", "MemorySize":number, "PackageType": "string", "RevisionId": "string", "Role": "string", "Runtime": "string", "RuntimeVersionConfig":{ "Error":{ "ErrorCode": "string", "Message": "string" }, "RuntimeVersionArn": "string" }, "SigningJobArn": "string", "SigningProfileVersionArn": "string", "SnapStart":{ "ApplyOn": "string", "OptimizationStatus": "string" }, "State": "string", "StateReason": "string", "StateReasonCode": "string", "Timeout":number, "TracingConfig":{ "Mode": "string" }, "Version": "string", "VpcConfig":{ "Ipv6AllowedForDualStack":boolean, "SecurityGroupIds": [ "string" ], "SubnetIds": [ "string" ], "VpcId": "string" } }, "Tags":{ "string" : "string" }, "TagsError":{ "ErrorCode": "string", "Message": "string" }}Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
- Code
The deployment package of the function or version.
Type:FunctionCodeLocation object
- Concurrency
The function'sreserved concurrency.
Type:Concurrency object
- Configuration
The configuration of the function or version.
Type:FunctionConfiguration object
- Tags
The function'stags. Lambda returns tag data only if you have explicit allow permissions forlambda:ListTags.
Type: String to string map
- TagsError
An object that contains details about an error related to retrieving tags.
Type:TagsError object
Errors
For information about the errors that are common to all actions, seeCommon Errors.
- InvalidParameterValueException
One of the parameters in the request is not valid.
HTTP Status Code: 400
- ResourceNotFoundException
The resource specified in the request does not exist.
HTTP Status Code: 404
- ServiceException
The AWS Lambda service encountered an internal error.
HTTP Status Code: 500
- TooManyRequestsException
The request throughput limit was exceeded. For more information, seeLambda quotas.
HTTP Status Code: 429
See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
