UpdateFunctionConfiguration
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.
Request Syntax
PUT /2015-03-31/functions/FunctionName
/configuration HTTP/1.1
Content-type: application/json
{
"DeadLetterConfig": {
"TargetArn": "string
"
},
"Description": "string
",
"Environment": {
"Variables": {
"string
" : "string
"
}
},
"Handler": "string
",
"KMSKeyArn": "string
",
"MemorySize": number
,
"Role": "string
",
"Runtime": "string
",
"Timeout": number
,
"TracingConfig": {
"Mode": "string
"
},
"VpcConfig": {
"SecurityGroupIds": [ "string
" ],
"SubnetIds": [ "string
" ]
}
}
URI Request Parameters
The request requires the following URI parameters.
- FunctionName
-
The name of the Lambda function.
You can specify a function name (for example,
Thumbnail
) or you can specify Amazon Resource Name (ARN) of the function (for example,arn:aws:lambda:us-west-2:account-id:function:ThumbNail
). AWS Lambda also allows you to specify a partial ARN (for example,account-id:Thumbnail
). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 character in length.Length Constraints: Minimum length of 1. Maximum length of 140.
Pattern:
(arn:aws:lambda:)?([a-z]{2}-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?
Request Body
The request accepts the following data in JSON format.
- DeadLetterConfig
-
The parent object that contains the target ARN (Amazon Resource Name) of an Amazon SQS queue or Amazon SNS topic.
Type: DeadLetterConfig object
Required: No
- Description
-
A short user-defined function description. AWS Lambda does not use this value. Assign a meaningful description as you see fit.
Type: String
Length Constraints: Minimum length of 0. Maximum length of 256.
Required: No
- Environment
-
The parent object that contains your environment's configuration settings.
Type: Environment object
Required: No
- Handler
-
The function that Lambda calls to begin executing your function. For Node.js, it is the
module-name.export
value in your function.Type: String
Length Constraints: Maximum length of 128.
Pattern:
[^\s]+
Required: No
- KMSKeyArn
-
The Amazon Resource Name (ARN) of the KMS key used to encrypt your function's environment variables. If you elect to use the AWS Lambda default service key, pass in an empty string ("") for this parameter.
Type: String
Pattern:
(arn:aws:[a-z0-9-.]+:.*)|()
Required: No
- MemorySize
-
The amount of memory, in MB, your Lambda function is given. AWS Lambda uses this memory size to infer the amount of CPU allocated to your function. Your function use-case determines your CPU and memory requirements. For example, a database operation might need less memory compared to an image processing function. The default value is 128 MB. The value must be a multiple of 64 MB.
Type: Integer
Valid Range: Minimum value of 128. Maximum value of 3008.
Required: No
- Role
-
The Amazon Resource Name (ARN) of the IAM role that Lambda will assume when it executes your function.
Type: String
Pattern:
arn:aws:iam::\d{12}:role/?[a-zA-Z_0-9+=,.@\-_/]+
Required: No
- Runtime
-
The runtime environment for the Lambda function.
To use the Python runtime v3.6, set the value to "python3.6". To use the Python runtime v2.7, set the value to "python2.7". To use the Node.js runtime v6.10, set the value to "nodejs6.10". To use the Node.js runtime v4.3, set the value to "nodejs4.3". To use the Python runtime v3.6, set the value to "python3.6".
注意
Node v0.10.42 is currently marked as deprecated. You must migrate existing functions to the newer Node.js runtime versions available on AWS Lambda (nodejs4.3 or nodejs6.10) as soon as possible. Failure to do so will result in an invalid parameter error being returned. Note that you will have to follow this procedure for each region that contains functions written in the Node v0.10.42 runtime.
Type: String
Valid Values:
nodejs | nodejs4.3 | nodejs6.10 | java8 | python2.7 | python3.6 | dotnetcore1.0 | nodejs4.3-edge
Required: No
- Timeout
-
The function execution time at which AWS Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.
Type: Integer
Valid Range: Minimum value of 1.
Required: No
- TracingConfig
-
The parent object that contains your function's tracing settings.
Type: TracingConfig object
Required: No
- VpcConfig
-
If your Lambda function accesses resources in a VPC, you provide this parameter identifying the list of security group IDs and subnet IDs. These must belong to the same VPC. You must provide at least one security group and one subnet ID.
Type: VpcConfig object
Required: No
Response Syntax
HTTP/1.1 200
Content-type: application/json
{
"CodeSha256": "string",
"CodeSize": number,
"DeadLetterConfig": {
"TargetArn": "string"
},
"Description": "string",
"Environment": {
"Error": {
"ErrorCode": "string",
"Message": "string"
},
"Variables": {
"string" : "string"
}
},
"FunctionArn": "string",
"FunctionName": "string",
"Handler": "string",
"KMSKeyArn": "string",
"LastModified": "string",
"MasterArn": "string",
"MemorySize": number,
"Role": "string",
"Runtime": "string",
"Timeout": number,
"TracingConfig": {
"Mode": "string"
},
"Version": "string",
"VpcConfig": {
"SecurityGroupIds": [ "string" ],
"SubnetIds": [ "string" ],
"VpcId": "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.
- CodeSha256
-
It is the SHA256 hash of your function deployment package.
Type: String
- CodeSize
-
The size, in bytes, of the function .zip file you uploaded.
Type: Long
- DeadLetterConfig
-
The parent object that contains the target ARN (Amazon Resource Name) of an Amazon SQS queue or Amazon SNS topic.
Type: DeadLetterConfig object
- Description
-
The user-provided description.
Type: String
Length Constraints: Minimum length of 0. Maximum length of 256.
- Environment
-
The parent object that contains your environment's configuration settings.
Type: EnvironmentResponse object
- FunctionArn
-
The Amazon Resource Name (ARN) assigned to the function.
Type: String
Pattern:
arn:aws:lambda:[a-z]{2}-[a-z]+-\d{1}:\d{12}:function:[a-zA-Z0-9-_\.]+(:(\$LATEST|[a-zA-Z0-9-_]+))?
- FunctionName
-
The name of the function. Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 characters in length.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 170.
Pattern:
(arn:aws:lambda:)?([a-z]{2}-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_\.]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?
- Handler
-
The function Lambda calls to begin executing your function.
Type: String
Length Constraints: Maximum length of 128.
Pattern:
[^\s]+
- KMSKeyArn
-
The Amazon Resource Name (ARN) of the KMS key used to encrypt your function's environment variables. If empty, it means you are using the AWS Lambda default service key.
Type: String
Pattern:
(arn:aws:[a-z0-9-.]+:.*)|()
- LastModified
-
The time stamp of the last time you updated the function. The time stamp is conveyed as a string complying with ISO-8601 in this way YYYY-MM-DDThh:mm:ssTZD (e.g., 1997-07-16T19:20:30+01:00). For more information, see Date and Time Formats.
Type: String
- MasterArn
-
Returns the ARN (Amazon Resource Name) of the master function.
Type: String
Pattern:
arn:aws:lambda:[a-z]{2}-[a-z]+-\d{1}:\d{12}:function:[a-zA-Z0-9-_]+(:(\$LATEST|[a-zA-Z0-9-_]+))?
- MemorySize
-
The memory size, in MB, you configured for the function. Must be a multiple of 64 MB.
Type: Integer
Valid Range: Minimum value of 128. Maximum value of 3008.
- Role
-
The Amazon Resource Name (ARN) of the IAM role that Lambda assumes when it executes your function to access any other Amazon Web Services (AWS) resources.
Type: String
Pattern:
arn:aws:iam::\d{12}:role/?[a-zA-Z_0-9+=,.@\-_/]+
- Runtime
-
The runtime environment for the Lambda function.
Type: String
Valid Values:
nodejs | nodejs4.3 | nodejs6.10 | java8 | python2.7 | python3.6 | dotnetcore1.0 | nodejs4.3-edge
- Timeout
-
The function execution time at which Lambda should terminate the function. Because the execution time has cost implications, we recommend you set this value based on your expected execution time. The default is 3 seconds.
Type: Integer
Valid Range: Minimum value of 1.
- TracingConfig
-
The parent object that contains your function's tracing settings.
Type: TracingConfigResponse object
- Version
-
The version of the Lambda function.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 1024.
Pattern:
(\$LATEST|[0-9]+)
- VpcConfig
-
VPC configuration associated with your Lambda function.
Type: VpcConfigResponse object
Errors
- 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 theUpdateFunctionConfiguration
API, that AWS Lambda is unable to assume you will get this exception.HTTP Status Code: 400
- ResourceConflictException
-
The resource already exists.
HTTP Status Code: 409
- ResourceNotFoundException
-
The resource (for example, a Lambda function or access policy statement) 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
-
HTTP Status Code: 429
See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following: