Struct Headers 

pub struct Headers {
    pub items: Option<Vec<String>>,
    pub quantity: i64,
}

A complex type that specifies the request headers, if any, that you want CloudFront to base caching on for this cache behavior.

For the headers that you specify, CloudFront caches separate versions of a specified object based on the header values in viewer requests. For example, suppose viewer requests for logo.jpg contain a custom product header that has a value of either acme or apex, and you configure CloudFront to cache your content based on values in the product header. CloudFront forwards the product header to the origin and caches the response from the origin once for each header value. For more information about caching based on header values, see How CloudFront Forwards and Caches Headers in the Amazon CloudFront Developer Guide.

Fields

items: Option<Vec<String>>

A list that contains one Name element for each header that you want CloudFront to use for caching in this cache behavior. If Quantity is 0, omit Items.

quantity: i64

The number of different headers that you want CloudFront to base caching on for this cache behavior. You can configure each cache behavior in a web distribution to do one of the following:

• Forward all headers to your origin: Specify 1 for Quantity and * for Name.

  CloudFront doesn't cache the objects that are associated with this cache behavior. Instead, CloudFront sends every request to the origin.

• Forward a whitelist of headers you specify: Specify the number of headers that you want CloudFront to base caching on. Then specify the header names in Name elements. CloudFront caches your objects based on the values in the specified headers.

• Forward only the default headers: Specify 0 for Quantity and omit Items. In this configuration, CloudFront doesn't cache based on the values in the request headers.

Regardless of which option you choose, CloudFront forwards headers to your origin based on whether the origin is an S3 bucket or a custom origin. See the following documentation:

• S3 bucket: See HTTP Request Headers That CloudFront Removes or Updates

• Custom origin: See HTTP Request Headers and CloudFront Behavior

Trait Implementations

impl Clone for Headers

fn clone(&self) -> Headers

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Headers

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Headers

fn default() -> Headers

Returns the “default value” for a type.

impl PartialEq for Headers

fn eq(&self, other: &Headers) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Headers