4 changed files with 186 additions and 42 deletions
--- a/Readme.md
+++ b/Readme.md
@ -1,5 +1,4 @@
-![downloads](https://img.shields.io/npm/dt/@gm5/response.svg)
-![version](https://img.shields.io/npm/v/@gm5/response.svg)
+![module info](https://nodei.co/npm/@gm5/response.png?downloads=true&downloadRank=true&stars=true)

 # @gm5/response

@ -21,8 +20,181 @@ http
  .createServer((req, res) => {
    let response = new Response(req, res)

-    response.type = 'html'
-    response.body = '<h1>hello world</h1>'
+    // it eq. argument res
+    console.log(response.res)
+
+    response.set('content-type', 'text/html; charset=utf-8')
+    response.end('hello world')
  })
  .listen(3000)
-```
+```
+
+## API
+
+
+### origin
+> 返回原始的 request & response 对象.
+
+
+
+### error(msg[, code])
+
+* msg `<String>`
+* code `<Number>` Http状态码 [可选]
+
+> 在客户端(浏览器)上输出友好的错误信息格式
+
+```javascript
+response.error('This is the error code', 500) //
+response.error(null, 500) // null/empty, it will call the statusText back
+response.error('Page not Found', 404) //
+response.error(new Error('Auth denied'), 401) //
+```
+
+### status(code)
+
+* code `<Number>`
+
+> 设置Http状态码
+
+```javascript
+response.setStatus(501) //
+response.setStatus(200) //
+```
+
+### set(key[, val])
+
+* key `<String>` | `<Object>`
+* code `<String>` | `<Number>`
+
+> 设置响应头, 属性字段名不区分大小写
+
+**相同的字段会被覆盖.**
+**`content-type`如果没有设置编码时, 会自动设置为utf8**
+
+```javascript
+response.set('content-type', 'text/html; charset=utf-8') //
+response.set('content-type', 'text/html') // 等价于上面的
+
+response.set({'content-type', 'text/html', foo: 'bar'[, ...]})
+```
+
+### append(key, val)
+
+* key `<String>`
+* code `<String>` | `<Number>`
+
+> 设置响应头, 属性字段名不区分大小写。与`set()`的区别时, 这个不会覆盖相同的字段, 而是合并输出。
+
+```javascript
+response.append('name', 'foo')
+response.append('name', 'bar') //客户端能同时看到foo和bar这2个值
+```
+
+### get(key)
+
+* key `<String>`
+
+> 获取即将要发送到客户端的头信息。
+
+```javascript
+response.set('name', 'foo')
+response.get('name') // foo
+```
+
+
+### redirect(url[, f])
+
+* url `<String>`
+* f `<Boolean>` 是否永久重定向, 默认否
+
+> 重定向url. 
+
+```javascript
+response.redirect('http://test.com/foo')
+response.redirect('http://test.cn', true)
+```
+
+### location(url)
+
+* url `<String>`
+
+> 重定向url. 但这是使用前端的方式跳转的.
+
+```javascript
+response.location('http://test.com/foo')
+response.location('/foo')
+```
+
+### render(data[, code])
+
+* data `<String>` | `<Buffer>`
+* code `<Number>` Http状态码, 默认200
+
+> 以html形式渲染内容。每次请求只能调用1次。
+
+
+```javascript
+let html = fs.readFileSync('./index.html')
+response.render(html) // send from a html file.
+
+let txt = '<h1>hello world</h1>'
+response.render(txt)
+
+response.render("You're not able to here", 401) 
+```
+
+### sendfile(target, name)
+
+* target `<String>` | `<Buffer>` 可以是文件路径, 可以是文本, 可以是Buffer
+* name `<String>` 要保存的文件名
+
+> 直接以附件形式响应, 作为文件下载功能.
+
+```javascript
+// 不推荐
+let pic = fs.readFileSync('./boy.jpg')
+response.sendfile(pic, 'a-little-boy.jpg') 
+
+// 推荐使用
+response.sendfile('./boy.jpg', 'a-little-boy.jpg') 
+
+response.sendfile('blablabla', 'bb.txt') 
+```
+
+
+
+### send(code[, msg][, data][, callback])
+
+* code `<Number>`  http状态码
+* msg `<String>` 错误信息文本
+* data `<Object>` 响应主体内容, 可以是任意格式
+* callback `<String>` 以jsonp形式返回对应的callback名
+
+> 向客户端输出一个json(p), 支持resful api。
+
+
+```javascript
+response.send(200, 'ok', { foo: 'bar' })
+// client will get the content like
+// '{"code": 200, "msg": "ok", "data": {"foo": "bar"}}'
+
+response.send(200, 'success', { name: 'foo', age: 16 }, 'blabla')
+// client will get the content like
+// 'blabla({"code": 200, "msg": "success", "data": {"name": "foo", "age": 16}})'
+```
+
+### end([data])
+
+* data `<String>` | `<Buffer>` optional
+
+> 向客户端输出内容。
+
+
+### cookie(key, value, options)
+
+* key `<String>`
+* value `<String>` 
+* options `<Object>` 额外配置[可选]
+
+> 向客户端写入cookies。
--- a/index.js
+++ b/index.js
@ -56,15 +56,6 @@ export default class Response {
    this.#res.end(buf)
  }

-  /**
-   * 设置缓存时长, 单位秒
-   */
-  set expires(time = 3600) {
-    let t = new Date(Date.now() + time * 1000)
-    this.set('Expires', t.toGMTString())
-    this.set('Cache-Control', 'max-age=' + time)
-  }
-
  /**
   * [error http 错误显示]
   * @param  {Number} code [http错误码]
@ -117,13 +108,13 @@ export default class Response {
    data += ''
    data = data || STATUS_TEXT[this.status]
    this.type = 'html'
-    this.length = Buffer.byteLength(data)
+    this.set('Content-Length', Buffer.byteLength(data))

    this.body = data
  }

  // 文件下载
-  sendfile(target, filename = 'untitled', expires = 3600) {
+  sendfile(target, filename = 'untitled') {
    if (this.#ended) {
      return
    }
@ -151,8 +142,6 @@ export default class Response {
      }
    }

-    this.expires = expires
-
    if (Buffer.isBuffer(target)) {
      data = target
    } else {
@ -167,7 +156,7 @@ export default class Response {
              size = end - start
            }
          }
-          this.length = size
+          this.set('Content-Length', size)
          return fs.origin
            .createReadStream(target, { start, end })
            .pipe(this.#res)
@ -180,27 +169,10 @@ export default class Response {
      data = data.slice(start, end)
    }

-    this.length = data.length
+    this.set('Content-Length', data.length)
    this.body = data
  }

-  load(file, type, expires = 24 * 3600) {
-    let stat = fs.stat(file)
-    if (stat.isFile()) {
-      let size = stat.size
-
-      let _type = type || file.split('.').pop() || 'stream'
-
-      this.expires = expires
-      this.type = _type
-      this.length = stat.size
-      return fs.origin.createReadStream(file).pipe(this.#res)
-    } else {
-      this.status = 404
-      this.body = null
-    }
-  }
-
  /**
   * [send json格式输出]
   * @param  {Num}        code     [返回码]
@ -224,7 +196,7 @@ export default class Response {
    output = JSON.stringify({ code, msg, data })

    this.type = 'json'
-    this.length = Buffer.byteLength(output)
+    this.set('Content-Length', Buffer.byteLength(output))

    // 只设置200以上的值
    if (code && code >= 200 && code <= 599) {
--- a/lib/cookie.js
+++ b/lib/cookie.js
@ -29,7 +29,7 @@ export function serialize(key, val, opts) {
  if (opts.hasOwnProperty('expires') && opts.expires) {
    // pairs.push('Expires=' + opts.expires.toUTCString())
    // 有效期, 已不建议使用,改用 max-age
-    if (opts.expires instanceof Date) {
+    if (Date.isDate(opts.expires)) {
      opts.maxAge = ~~(opts.expires.getTime() / 1000)
    } else {
      opts.maxAge = +opts.expires
--- a/package.json
+++ b/package.json
@ -1,6 +1,6 @@
 {
  "name": "@gm5/response",
-  "version": "2.1.1",
+  "version": "2.0.0",
  "type": "module",
  "description": "对Http的response进一步封装, 提供常用的API",
  "main": "index.js",
@ -11,8 +11,8 @@
    "http"
  ],
  "dependencies": {
-    "iofs": "^1.5.3"
+    "iofs": "^1.5.0"
  },
-  "repository": "https://git.wkit.fun/gm5/response.git",
+  "repository": "https://github.com/bytedo/gmf.response.git",
  "license": "MIT"
 }