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How to use OSS gzip?

Last Updated: May 23, 2019

OSS gzips the static contents of common webpages (HTML, Javascript, XML, and JSON) by adding Accept-Encoding to the header of the Get request, but the following conditions must be met:

  • File size must be equal to or greater than 1 KB.
  • Content-Type must be text/cache-manifest, text/xml, text/plain, text/css, application/javascript, application/x-javascript, application/rss+xml, application/json, or text/json.

API Reference

Request example:

  1. GET /ossutil.txt HTTP/1.1
  2. Host: agent-test1.oss-cn-qingdao.aliyuncs.com
  3. User-Agent: curl/7.47.0
  4. Accept: */*
  5. Accept-Encoding: gzip

Response example:

  1. HTTP/1.1 200 OK
  2. Server: AliyunOSS
  3. Date: Thu, 23 May 2019 02:03:39 GMT
  4. Content-Type: text/plain; charset=utf-8
  5. Transfer-Encoding: chunked
  6. Connection: keep-alive
  7. Vary: Accept-Encoding
  8. x-oss-request-id: 5CE5FF7BFEC931F2900F9F2A
  9. Last-Modified: Thu, 23 May 2019 02:01:11 GMT
  10. x-oss-object-type: Normal
  11. x-oss-hash-crc64ecma: 3161812495027039701
  12. x-oss-storage-class: Standard
  13. Content-MD5: XSpWpgD//mzytMaVJCE77w==
  14. x-oss-server-time: 0
  15. Content-Encoding: gzip
  16. [965 bytes data]