HTTP 缓存
HTTP 缓存与条件请求：ETag / If-None-Match（304）、If-Match（412 / 428）、Last-Modified / If-Modified-Since、各种 Cache-Control 以及 Vary。
你的账号已解锁这些端点。在每个端点的页面上用 Try it 发送请求。
- GETHEAD
https://api.testingapis.com/api/cache/etagReturns the versioned document with its ETagReturns the versioned document with its ETag. - PUT
https://api.testingapis.com/api/cache/etagUpdates the document only if the client's ETag is currentUpdates the document only if the client's ETag is current. - POST
https://api.testingapis.com/api/cache/etag/resetResets the ETag document to version 1 and its default contentResets the ETag document to version 1 and its default content. - GETHEAD
https://api.testingapis.com/api/cache/last-modifiedReturns a resource with a fixed Last-Modified dateReturns a resource with a fixed Last-Modified date. - GET
https://api.testingapis.com/api/cache/max-age/{seconds}Returns a response that clients may cache for the given number of secondsReturns a response that clients may cache for the given number of seconds. - GET
https://api.testingapis.com/api/cache/no-storeReturns a response that must never be cachedReturns a response that must never be cached. - GET
https://api.testingapis.com/api/cache/varyReturns a greeting in the language chosen by Accept-LanguageReturns a greeting in the language chosen by Accept-Language.
请求示例
Returns the versioned document with its ETag. 完整参考和 Send 按钮（英文）.
cURL
curl -X GET "https://api.testingapis.com/api/cache/etag"响应 · 200 OK
{
"id": 1,
"version": 1,
"title": "TestingAPIs cached document",
"content": "Send If-None-Match to get a 304, and If-Match on PUT to make a conditional update.",
"updatedAt": "2025-01-01T00:00:00Z",
"etag": "\"doc-v1\""
}