# CreateCachePolicy
<a name="API_CreateCachePolicy"></a>

Creates a cache policy.

After you create a cache policy, you can attach it to one or more cache behaviors. When it's attached to a cache behavior, the cache policy determines the following:
+ The values that CloudFront includes in the *cache key*. These values can include HTTP headers, cookies, and URL query strings. CloudFront uses the cache key to find an object in its cache that it can return to the viewer.
+ The default, minimum, and maximum time to live (TTL) values that you want objects to stay in the CloudFront cache.
**Important**  
If your minimum TTL is greater than 0, CloudFront will cache content for at least the duration specified in the cache policy's minimum TTL, even if the `Cache-Control: no-cache`, `no-store`, or `private` directives are present in the origin headers.

The headers, cookies, and query strings that are included in the cache key are also included in requests that CloudFront sends to the origin. CloudFront sends a request when it can't find an object in its cache that matches the request's cache key. If you want to send values to the origin but *not* include them in the cache key, use `OriginRequestPolicy`.

For more information about cache policies, see [Controlling the cache key](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/controlling-the-cache-key.html) in the *Amazon CloudFront Developer Guide*.

## Request Syntax
<a name="API_CreateCachePolicy_RequestSyntax"></a>

```
POST /2020-05-31/cache-policy HTTP/1.1
<?xml version="1.0" encoding="UTF-8"?>
<CachePolicyConfig xmlns="http://cloudfront.amazonaws.com/doc/2020-05-31/">
   <Comment>string</Comment>
   <DefaultTTL>long</DefaultTTL>
   <MaxTTL>long</MaxTTL>
   <MinTTL>long</MinTTL>
   <Name>string</Name>
   <ParametersInCacheKeyAndForwardedToOrigin>
      <CookiesConfig>
         <CookieBehavior>string</CookieBehavior>
         <Cookies>
            <Items>
               <Name>string</Name>
            </Items>
            <Quantity>integer</Quantity>
         </Cookies>
      </CookiesConfig>
      <EnableAcceptEncodingBrotli>boolean</EnableAcceptEncodingBrotli>
      <EnableAcceptEncodingGzip>boolean</EnableAcceptEncodingGzip>
      <HeadersConfig>
         <HeaderBehavior>string</HeaderBehavior>
         <Headers>
            <Items>
               <Name>string</Name>
            </Items>
            <Quantity>integer</Quantity>
         </Headers>
      </HeadersConfig>
      <QueryStringsConfig>
         <QueryStringBehavior>string</QueryStringBehavior>
         <QueryStrings>
            <Items>
               <Name>string</Name>
            </Items>
            <Quantity>integer</Quantity>
         </QueryStrings>
      </QueryStringsConfig>
   </ParametersInCacheKeyAndForwardedToOrigin>
</CachePolicyConfig>
```

## URI Request Parameters
<a name="API_CreateCachePolicy_RequestParameters"></a>

The request does not use any URI parameters.

## Request Body
<a name="API_CreateCachePolicy_RequestBody"></a>

The request accepts the following data in XML format.

 ** [CachePolicyConfig](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-CachePolicyConfig"></a>
Root level tag for the CachePolicyConfig parameters.  
Required: Yes

 ** [Comment](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-Comment"></a>
A comment to describe the cache policy. The comment cannot be longer than 128 characters.  
Type: String  
Required: No

 ** [DefaultTTL](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-DefaultTTL"></a>
The default amount of time, in seconds, that you want objects to stay in the CloudFront cache before CloudFront sends another request to the origin to see if the object has been updated. CloudFront uses this value as the object's time to live (TTL) only when the origin does *not* send `Cache-Control` or `Expires` headers with the object. For more information, see [Managing How Long Content Stays in an Edge Cache (Expiration)](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Expiration.html) in the *Amazon CloudFront Developer Guide*.  
The default value for this field is 86400 seconds (one day). If the value of `MinTTL` is more than 86400 seconds, then the default value for this field is the same as the value of `MinTTL`.  
Type: Long  
Required: No

 ** [MaxTTL](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-MaxTTL"></a>
The maximum amount of time, in seconds, that objects stay in the CloudFront cache before CloudFront sends another request to the origin to see if the object has been updated. CloudFront uses this value only when the origin sends `Cache-Control` or `Expires` headers with the object. For more information, see [Managing How Long Content Stays in an Edge Cache (Expiration)](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Expiration.html) in the *Amazon CloudFront Developer Guide*.  
The default value for this field is 31536000 seconds (one year). If the value of `MinTTL` or `DefaultTTL` is more than 31536000 seconds, then the default value for this field is the same as the value of `DefaultTTL`.  
Type: Long  
Required: No

 ** [MinTTL](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-MinTTL"></a>
The minimum amount of time, in seconds, that you want objects to stay in the CloudFront cache before CloudFront sends another request to the origin to see if the object has been updated. For more information, see [Managing How Long Content Stays in an Edge Cache (Expiration)](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/Expiration.html) in the *Amazon CloudFront Developer Guide*.  
Type: Long  
Required: Yes

 ** [Name](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-Name"></a>
A unique name to identify the cache policy.  
Type: String  
Required: Yes

 ** [ParametersInCacheKeyAndForwardedToOrigin](#API_CreateCachePolicy_RequestSyntax) **   <a name="cloudfront-CreateCachePolicy-request-ParametersInCacheKeyAndForwardedToOrigin"></a>
The HTTP headers, cookies, and URL query strings to include in the cache key. The values included in the cache key are also included in requests that CloudFront sends to the origin.  
Type: [ParametersInCacheKeyAndForwardedToOrigin](API_ParametersInCacheKeyAndForwardedToOrigin.md) object  
Required: No

## Response Syntax
<a name="API_CreateCachePolicy_ResponseSyntax"></a>

```
HTTP/1.1 201
<?xml version="1.0" encoding="UTF-8"?>
<CachePolicy>
   <CachePolicyConfig>
      <Comment>string</Comment>
      <DefaultTTL>long</DefaultTTL>
      <MaxTTL>long</MaxTTL>
      <MinTTL>long</MinTTL>
      <Name>string</Name>
      <ParametersInCacheKeyAndForwardedToOrigin>
         <CookiesConfig>
            <CookieBehavior>string</CookieBehavior>
            <Cookies>
               <Items>
                  <Name>string</Name>
               </Items>
               <Quantity>integer</Quantity>
            </Cookies>
         </CookiesConfig>
         <EnableAcceptEncodingBrotli>boolean</EnableAcceptEncodingBrotli>
         <EnableAcceptEncodingGzip>boolean</EnableAcceptEncodingGzip>
         <HeadersConfig>
            <HeaderBehavior>string</HeaderBehavior>
            <Headers>
               <Items>
                  <Name>string</Name>
               </Items>
               <Quantity>integer</Quantity>
            </Headers>
         </HeadersConfig>
         <QueryStringsConfig>
            <QueryStringBehavior>string</QueryStringBehavior>
            <QueryStrings>
               <Items>
                  <Name>string</Name>
               </Items>
               <Quantity>integer</Quantity>
            </QueryStrings>
         </QueryStringsConfig>
      </ParametersInCacheKeyAndForwardedToOrigin>
   </CachePolicyConfig>
   <Id>string</Id>
   <LastModifiedTime>timestamp</LastModifiedTime>
</CachePolicy>
```

## Response Elements
<a name="API_CreateCachePolicy_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 201 response.

The following data is returned in XML format by the service.

 ** [CachePolicy](#API_CreateCachePolicy_ResponseSyntax) **   <a name="cloudfront-CreateCachePolicy-response-CachePolicy"></a>
Root level tag for the CachePolicy parameters.  
Required: Yes

 ** [CachePolicyConfig](#API_CreateCachePolicy_ResponseSyntax) **   <a name="cloudfront-CreateCachePolicy-response-CachePolicyConfig"></a>
The cache policy configuration.  
Type: [CachePolicyConfig](API_CachePolicyConfig.md) object

 ** [Id](#API_CreateCachePolicy_ResponseSyntax) **   <a name="cloudfront-CreateCachePolicy-response-Id"></a>
The unique identifier for the cache policy.  
Type: String

 ** [LastModifiedTime](#API_CreateCachePolicy_ResponseSyntax) **   <a name="cloudfront-CreateCachePolicy-response-LastModifiedTime"></a>
The date and time when the cache policy was last modified.  
Type: Timestamp

## Errors
<a name="API_CreateCachePolicy_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDenied **   
Access denied.  
HTTP Status Code: 403

 ** CachePolicyAlreadyExists **   
A cache policy with this name already exists. You must provide a unique name. To modify an existing cache policy, use `UpdateCachePolicy`.  
HTTP Status Code: 409

 ** InconsistentQuantities **   
The value of `Quantity` and the size of `Items` don't match.  
HTTP Status Code: 400

 ** InvalidArgument **   
An argument is invalid.  
HTTP Status Code: 400

 ** TooManyCachePolicies **   
You have reached the maximum number of cache policies for this AWS account. For more information, see [Quotas](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cloudfront-limits.html) (formerly known as limits) in the *Amazon CloudFront Developer Guide*.  
HTTP Status Code: 400

 ** TooManyCookiesInCachePolicy **   
The number of cookies in the cache policy exceeds the maximum. For more information, see [Quotas](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cloudfront-limits.html) (formerly known as limits) in the *Amazon CloudFront Developer Guide*.  
HTTP Status Code: 400

 ** TooManyHeadersInCachePolicy **   
The number of headers in the cache policy exceeds the maximum. For more information, see [Quotas](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cloudfront-limits.html) (formerly known as limits) in the *Amazon CloudFront Developer Guide*.  
HTTP Status Code: 400

 ** TooManyQueryStringsInCachePolicy **   
The number of query strings in the cache policy exceeds the maximum. For more information, see [Quotas](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/cloudfront-limits.html) (formerly known as limits) in the *Amazon CloudFront Developer Guide*.  
HTTP Status Code: 400

## See Also
<a name="API_CreateCachePolicy_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/cloudfront-2020-05-31/CreateCachePolicy) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudfront-2020-05-31/CreateCachePolicy)