update_function

update_function(**kwargs)

Updates a CloudFront function.

You can update a function's code or the comment that describes the function. You cannot update a function's name.

To update a function, you provide the function's name and version ( ETag value) along with the updated function code. To get the name and version, you can use ListFunctions and DescribeFunction .

See also: AWS API Documentation

Request Syntax

response = client.update_function(
    Name='string',
    IfMatch='string',
    FunctionConfig={
        'Comment': 'string',
        'Runtime': 'cloudfront-js-1.0'
    },
    FunctionCode=b'bytes'
)

Parameters

• Name (string) --

  [REQUIRED]

  The name of the function that you are updating.

• IfMatch (string) --

  [REQUIRED]

  The current version ( ETag value) of the function that you are updating, which you can get using DescribeFunction .

• FunctionConfig (dict) --

  [REQUIRED]

  Configuration information about the function.

  • Comment (string) -- [REQUIRED]

    A comment to describe the function.

  • Runtime (string) -- [REQUIRED]

    The function's runtime environment. The only valid value is cloudfront-js-1.0 .

• FunctionCode (bytes) --

  [REQUIRED]

  The function code. For more information about writing a CloudFront function, see Writing function code for CloudFront Functions in the Amazon CloudFront Developer Guide .

Return type

dict

Returns

Response Syntax

{
    'FunctionSummary': {
        'Name': 'string',
        'Status': 'string',
        'FunctionConfig': {
            'Comment': 'string',
            'Runtime': 'cloudfront-js-1.0'
        },
        'FunctionMetadata': {
            'FunctionARN': 'string',
            'Stage': 'DEVELOPMENT'|'LIVE',
            'CreatedTime': datetime(2015, 1, 1),
            'LastModifiedTime': datetime(2015, 1, 1)
        }
    },
    'ETag': 'string'
}

Response Structure

• (dict) --

  • FunctionSummary (dict) --

    Contains configuration information and metadata about a CloudFront function.

    • Name (string) --

      The name of the CloudFront function.

    • Status (string) --

      The status of the CloudFront function.

    • FunctionConfig (dict) --

      Contains configuration information about a CloudFront function.

      • Comment (string) --

        A comment to describe the function.

      • Runtime (string) --

        The function's runtime environment. The only valid value is cloudfront-js-1.0 .

    • FunctionMetadata (dict) --

      Contains metadata about a CloudFront function.

      • FunctionARN (string) --

        The Amazon Resource Name (ARN) of the function. The ARN uniquely identifies the function.

      • Stage (string) --

        The stage that the function is in, either DEVELOPMENT or LIVE .

        When a function is in the DEVELOPMENT stage, you can test the function with TestFunction , and update it with UpdateFunction .

        When a function is in the LIVE stage, you can attach the function to a distribution's cache behavior, using the function's ARN.

      • CreatedTime (datetime) --

        The date and time when the function was created.

      • LastModifiedTime (datetime) --

        The date and time when the function was most recently updated.

  • ETag (string) --

    The version identifier for the current version of the CloudFront function.

Exceptions

• CloudFront.Client.exceptions.InvalidArgument
• CloudFront.Client.exceptions.InvalidIfMatchVersion
• CloudFront.Client.exceptions.NoSuchFunctionExists
• CloudFront.Client.exceptions.PreconditionFailed
• CloudFront.Client.exceptions.FunctionSizeLimitExceeded
• CloudFront.Client.exceptions.UnsupportedOperation