HTTP response status code & 206 Partial Content All In One

HTTP response status code & 206 Partial Content All In One

blob & download

206 Partial Content

https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/206

Status Code: 206 Partial Content

Request URL: blob:https://cdn.xgqfrms.xyz/c95955d4-7289-4cf9-ae45-b0f1c63ed1d1
Request Method: GET
Status Code: 206 Partial Content
Referrer Policy: strict-origin-when-cross-origin

Content-Length: 1017536
Content-Range: bytes 0-1017535/1017536
Content-Type: video/mp4

Range

Range: <unit>=<range-start>-
Range: <unit>=<range-start>-<range-end>
Range: <unit>=<range-start>-<range-end>, <range-start>-<range-end>
Range: <unit>=<range-start>-<range-end>, <range-start>-<range-end>, <range-start>-<range-end>
Range: <unit>=-<suffix-length>

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range

Range: bytes=200-1000, 2000-6576, 19000-

Range: bytes=0-499, -500

Content-Range

Content-Range: <unit> <range-start>-<range-end>/<size>
Content-Range: <unit> <range-start>-<range-end>/*
Content-Range: <unit> */<size>

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Range

Content-Type

Content-Type: text/html; charset=UTF-8
Content-Type: multipart/form-data; boundary=something

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type

MIME_type

multipart/form-data, used in the POST method of HTML Forms,
multipart/byteranges, used with 206 Partial Content to send part of a document

https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types#multipart_types

application/octet-stream

'Content-Type': 'application/octet-stream',
// 告诉浏览器这是一个二进制文件，浏览器不需要执行该文件，直接作为附件弹出下载对话框即可 ✅

"use strict";

/**
 *
 * @author xgqfrms
 * @license MIT
 * @copyright xgqfrms
 * @created 2022-04-17
 * @modified
 *
 * @description
 * @augments
 * @example
 * @link
 * @solutions
 *
 *
 */

var fs = require('fs');
var path = require("path");

var express = require("express");
var app = express();


const log = console.log;

app.get("/", function(req,res) {
    var filename = 'logo.png';
    var filepath = path.join(__dirname, `./${filename}`);
    // console.log('__dirname', __dirname);
    // console.log('filepath', filepath);
    fs.readFile(filepath, function(err, data){
      res.set({
        'Content-Type': 'application/octet-stream',
        // 告诉浏览器这是一个二进制文件，浏览器不需要执行该文件，直接作为附件弹出下载对话框即可 ✅
        'Content-Disposition': `attachment; filename=${filename}`,
        // 告诉浏览器这是一个附件要下载是png图片
      });
      // console.log('data =', data);
      res.end(data);
    });
});


const port = 3000;
app.listen(port, function(){
  console.log(`server is running: http://localhost:${port}`);
});



module.export = app;
// export {
//   app,
// };

text/plain

text/css
text/html
text/javascript

image/apng: Animated Portable Network Graphics (APNG)
image/avif : AV1 Image File Format (AVIF)
image/gif: Graphics Interchange Format (GIF)
image/jpeg: Joint Photographic Expert Group image (JPEG)
image/png: Portable Network Graphics (PNG)
image/svg+xml: Scalable Vector Graphics (SVG)
image/webp: Web Picture format (WEBP)

audio/wave audio/wav audio/x-wav audio/x-pn-wav	An audio file in the WAVE container format. The PCM audio codec (WAVE codec "1") is often supported, but other codecs have limited support (if any).
audio/webm	An audio file in the WebM container format. Vorbis and Opus are the codecs officially supported by the WebM specification.
video/webm	A video file, possibly with audio, in the WebM container format. VP8 and VP9 are the most common video codecs; Vorbis and Opus the most common audio codecs.
audio/ogg	An audio file in the Ogg container format. Vorbis is the most common audio codec used in such a container; however, Opus is now supported by Ogg as well.
video/ogg	A video file, possibly with audio, in the Ogg container format. Theora is the usual video codec used within it; Vorbis is the usual audio codec, although Opus is becoming more common.
application/ogg	An audio or video file using the Ogg container format. Theora is the usual video codec used within it; Vorbis is the usual audio codec.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types

https://developer.mozilla.org/en-US/docs/Glossary/MIME_type

demo

Request URL: blob:https://cdn.xgqfrms.xyz/c95955d4-7289-4cf9-ae45-b0f1c63ed1d1
Request Method: GET
Status Code: 206 Partial Content
Referrer Policy: strict-origin-when-cross-origin

Content-Length: 1017536
Content-Range: bytes 0-1017535/1017536
Content-Type: video/mp4

⚠️ Provisional headers are shown
Learn more
Accept-Encoding: identity;q=1, *;q=0
DNT: 1
Range: bytes=0-
Referer
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.4987.0 Safari/537.36

refs

https://developer.mozilla.org/en-US/docs/Web/HTTP/Status

---

---

©xgqfrms 2012-2020

www.cnblogs.com/xgqfrms 发布文章使用：只允许注册用户才可以访问！

原创文章，版权所有©️xgqfrms, 禁止转载 🈲️，侵权必究⚠️！

---