Use GetFunctionConfiguration with an Amazon SDK or CLI

To retrieve the version-specific settings of a Lambda function

The following get-function-configuration example displays the settings for version 2 of the my-function function.

aws lambda get-function-configuration \
    --function-name  my-function:2

Output:

{
    "FunctionName": "my-function",
    "LastModified": "2019-09-26T20:28:40.438+0000",
    "RevisionId": "e52502d4-9320-4688-9cd6-152a6ab7490d",
    "MemorySize": 256,
    "Version": "2",
    "Role": "arn:aws:iam::123456789012:role/service-role/my-function-role-uy3l9qyq",
    "Timeout": 3,
    "Runtime": "nodejs10.x",
    "TracingConfig": {
        "Mode": "PassThrough"
    },
    "CodeSha256": "5tT2qgzYUHaqwR716pZ2dpkn/0J1FrzJmlKidWoaCgk=",
    "Description": "",
    "VpcConfig": {
        "SubnetIds": [],
        "VpcId": "",
        "SecurityGroupIds": []
    },
    "CodeSize": 304,
    "FunctionArn": "arn:aws:lambda:us-west-2:123456789012:function:my-function:2",
    "Handler": "index.handler"
}

For more information, see Amazon Lambda Function Configuration in the Amazon Lambda Developer Guide.

Example 1: This example returns the version specific configuration of a Lambda Function.

Get-LMFunctionConfiguration -FunctionName "MylambdaFunction123" -Qualifier "PowershellAlias"

Output:

CodeSha256                 : uWOW0R7z+f0VyLuUg7+/D08hkMFsq0SF4seuyUZJ/R8=
CodeSize                   : 1426
DeadLetterConfig           : Amazon.Lambda.Model.DeadLetterConfig
Description                : Verson 3 to test Aliases
Environment                : Amazon.Lambda.Model.EnvironmentResponse
FunctionArn                : arn:aws:lambda:us-east-1:123456789012:function:MylambdaFunction123
                             :PowershellAlias
FunctionName               : MylambdaFunction123
Handler                    : lambda_function.launch_instance
KMSKeyArn                  : 
LastModified               : 2019-12-25T09:52:59.872+0000
LastUpdateStatus           : Successful
LastUpdateStatusReason     : 
LastUpdateStatusReasonCode : 
Layers                     : {}
MasterArn                  : 
MemorySize                 : 128
RevisionId                 : 5d7de38b-87f2-4260-8f8a-e87280e10c33
Role                       : arn:aws:iam::123456789012:role/service-role/lambda
Runtime                    : python3.8
State                      : Active
StateReason                : 
StateReasonCode            : 
Timeout                    : 600
TracingConfig              : Amazon.Lambda.Model.TracingConfigResponse
Version                    : 4
VpcConfig                  : Amazon.Lambda.Model.VpcConfigDetail