ProxyCacheContent

**Table 1** ProxyCacheContent
Parameter	Mandatory	Type	Description
cache_key	No	PluginProxyCacheKey object	The configuration parameter is used as the value of the cache proxy key. cache_key is mandatory. Therefore, at least one of the system_params, parameters, and headers parameters needs to be configured.
cache_http_status_and_ttl	No	Array of PluginProxyCacheHttpStatusTtl objects	HTTP status codes that can be cached and the cache duration.
client_cache_control	No	PluginProxyCacheClientCacheControl object	Allows the client to use the Cache-Control header to affect the cache policy.
cacheable_headers	No	Array of strings	Backend headers that can be cached. By default, only the Content-Type, Content-Encoding, and Content-Language headers are cached. A maximum of 20 parameters are supported. The value is a string of 1 to 64 characters. System response headers (such as x-apig-* and x-request-id) added by APIG cannot be added.

**Table 2** PluginProxyCacheKey
Parameter	Mandatory	Type	Description
system_params	No	Array of strings	The built-in system parameter of the gateway is used as the value of the cache proxy key. The gateway parameters are as follows: $context.sourceIp: source IP address of the API caller $context.stage: deployment environment in which the API is called $context.apiId: API ID $context.appId: ID of the app used by the API caller $context.requestId: request ID generated when the API is called. $context.serverAddr: address of the gateway server $context.serverName: name of the gateway server $context.handleTime: processing time of the API request $context.providerAppId: ID of the app used by the API owner (not supported) $context.apiName: API name, which can be used only after the API is published $context.appName: name of the credential used for calling the API
parameters	No	Array of strings	The request query parameter is used as the value of the cache proxy key.
headers	No	Array of strings	The request header is used as the value of the cache proxy key.

**Table 3** PluginProxyCacheHttpStatusTtl
Parameter	Mandatory	Type	Description
http_status	No	Array of integers	Determines whether to cache content based on the HTTP response code.
ttl	No	Integer	Cache expiration time, in seconds.

**Table 4** PluginProxyCacheClientCacheControl
Parameter	Mandatory	Type	Description
mode	No	String	Mode in which the client is allowed to affect the cache policy. Options: off: rejects all requests. all: allows all requests. apps: The value of App ID can be in the datas list.
datas	No	Array of strings	If mode is set to apps, values of App ID in the following table are allowed.