Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

UpdateFunction

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.

Request Syntax


PUT /2020-05-31/function/Name HTTP/1.1
If-Match: IfMatch
<?xml version="1.0" encoding="UTF-8"?>
<UpdateFunctionRequest xmlns="http://cloudfront.amazonaws.com/doc/2020-05-31/">
   <FunctionCode>blob</FunctionCode>
   <FunctionConfig>
      <Comment>string</Comment>
      <KeyValueStoreAssociations>
         <Items>
            <KeyValueStoreAssociation>
               <KeyValueStoreARN>string</KeyValueStoreARN>
            </KeyValueStoreAssociation>
         </Items>
         <Quantity>integer</Quantity>
      </KeyValueStoreAssociations>
      <Runtime>string</Runtime>
   </FunctionConfig>
</UpdateFunctionRequest>

URI Request Parameters

The request uses the following URI parameters.

If-Match

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

Required: Yes

Name

The name of the function that you are updating.

Required: Yes

Request Body

The request accepts the following data in XML format.

UpdateFunctionRequest

Root level tag for the UpdateFunctionRequest parameters.

Required: Yes

FunctionCode

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

Type: Base64-encoded binary data object

Length Constraints: Minimum length of 1. Maximum length of 40960.

Required: Yes

FunctionConfig

Configuration information about the function.

Type: FunctionConfig object

Required: Yes

Response Syntax


HTTP/1.1 200
<?xml version="1.0" encoding="UTF-8"?>
<FunctionSummary>
   <FunctionConfig>
      <Comment>string</Comment>
      <KeyValueStoreAssociations>
         <Items>
            <KeyValueStoreAssociation>
               <KeyValueStoreARN>string</KeyValueStoreARN>
            </KeyValueStoreAssociation>
         </Items>
         <Quantity>integer</Quantity>
      </KeyValueStoreAssociations>
      <Runtime>string</Runtime>
   </FunctionConfig>
   <FunctionMetadata>
      <CreatedTime>timestamp</CreatedTime>
      <FunctionARN>string</FunctionARN>
      <LastModifiedTime>timestamp</LastModifiedTime>
      <Stage>string</Stage>
   </FunctionMetadata>
   <Name>string</Name>
   <Status>string</Status>
</FunctionSummary>