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 the versioning feature, you can list all of your functions or only $LATEST versions. For information about the versioning feature, see AWS Lambda Function Versioning and Aliases.
GET /2015-03-31/functions/?FunctionVersion=FunctionVersion&Marker=Marker&MasterRegion=MasterRegion&MaxItems=MaxItems HTTP/1.1
The request requires the following URI parameters.
** FunctionVersion **
Set to ALL to list all published versions. If not specified, only the latest unpublished version ARN is returned.
Valid Values: ALL
** Marker **
Optional string. An opaque pagination token returned from a previous ListFunctions operation. If present, indicates where to continue the listing.
** MasterRegion **
Specify a region (e.g. us-east-2) to only list functions that were created in that region, or ALL to include functions replicated from any region. If specified, you also must specify the FunctionVersion.
Pattern: ALL|[a-z]{2}(-gov)?-[a-z]+-\d{1}
** MaxItems **
Optional integer. Specifies the maximum number of AWS Lambda functions to return in response. This parameter value must be greater than 0. The absolute maximum of AWS Lambda functions that can be returned is 50.
Valid Range: Minimum value of 1. Maximum value of 10000.
The request does not have a request body.
HTTP/1.1 200
Content-type: application/json
{
"[Functions](#SSS-ListFunctions-response-Functions)": [
{
"[CodeSha256](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-CodeSha256)": "string",
"[CodeSize](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-CodeSize)": number,
"[DeadLetterConfig](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-DeadLetterConfig)": {
"[TargetArn](API_DeadLetterConfig.md#SSS-Type-DeadLetterConfig-TargetArn)": "string"
},
"[Description](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Description)": "string",
"[Environment](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Environment)": {
"[Error](API_EnvironmentResponse.md#SSS-Type-EnvironmentResponse-Error)": {
"[ErrorCode](API_EnvironmentError.md#SSS-Type-EnvironmentError-ErrorCode)": "string",
"[Message](API_EnvironmentError.md#SSS-Type-EnvironmentError-Message)": "string"
},
"[Variables](API_EnvironmentResponse.md#SSS-Type-EnvironmentResponse-Variables)": {
"string" : "string"
}
},
"[FunctionArn](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-FunctionArn)": "string",
"[FunctionName](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-FunctionName)": "string",
"[Handler](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Handler)": "string",
"[KMSKeyArn](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-KMSKeyArn)": "string",
"[LastModified](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-LastModified)": "string",
"[Layers](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Layers)": [
{
"[Arn](API_Layer.md#SSS-Type-Layer-Arn)": "string",
"[CodeSize](API_Layer.md#SSS-Type-Layer-CodeSize)": number
}
],
"[MasterArn](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-MasterArn)": "string",
"[MemorySize](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-MemorySize)": number,
"[RevisionId](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-RevisionId)": "string",
"[Role](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Role)": "string",
"[Runtime](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Runtime)": "string",
"[Timeout](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Timeout)": number,
"[TracingConfig](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-TracingConfig)": {
"[Mode](API_TracingConfigResponse.md#SSS-Type-TracingConfigResponse-Mode)": "string"
},
"[Version](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-Version)": "string",
"[VpcConfig](API_FunctionConfiguration.md#SSS-Type-FunctionConfiguration-VpcConfig)": {
"[SecurityGroupIds](API_VpcConfigResponse.md#SSS-Type-VpcConfigResponse-SecurityGroupIds)": [ "string" ],
"[SubnetIds](API_VpcConfigResponse.md#SSS-Type-VpcConfigResponse-SubnetIds)": [ "string" ],
"[VpcId](API_VpcConfigResponse.md#SSS-Type-VpcConfigResponse-VpcId)": "string"
}
}
],
"[NextMarker](#SSS-ListFunctions-response-NextMarker)": "string"
}
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
** Functions **
A list of Lambda functions.
Type: Array of FunctionConfiguration objects
** NextMarker **
A string, present if there are more functions.
Type: String
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.
HTTP Status Code: 400
ServiceException
The AWS Lambda service encountered an internal error.
HTTP Status Code: 500
TooManyRequestsException
Request throughput limit exceeded
HTTP Status Code: 429
For more information about using this API in one of the language-specific AWS SDKs, see the following: