fixed undefined

.gitignore

@@ -1,6 +1,9 @@
 *.min.js
 *.min.css
 
+demo.html
+.httpserver
+
 node_modules/
 dist/
 

Readme.md

@@ -4,7 +4,7 @@
 
 ## 浏览器兼容性
 
-![Chrome](https://raw.github.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png) | ![Firefox](https://raw.github.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png) | ![Safari](https://raw.github.com/alrra/browser-logos/master/src/safari/safari_48x48.png) | ![Opera](https://raw.github.com/alrra/browser-logos/master/src/opera/opera_48x48.png) | ![Edge](https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png) | ![IE](https://raw.githubusercontent.com/alrra/browser-logos/master/src/archive/internet-explorer_9-11/internet-explorer_9-11_48x48.png) |
+![Chrome](https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png) | ![Firefox](https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png) | ![Safari](https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_48x48.png) | ![Opera](https://raw.githubusercontent.com/alrra/browser-logos/master/src/opera/opera_48x48.png) | ![Edge](https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png) | ![IE](https://raw.githubusercontent.com/alrra/browser-logos/master/src/archive/internet-explorer_9-11/internet-explorer_9-11_48x48.png) |
 --- | --- | --- | --- | --- | --- |
 Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | 10+ ✔ |
 
@@ -55,7 +55,7 @@ f1('/get_list', {body: {page: 1}})
 
 ### APIs
 
-#### 1. fetch(url[, options<Object>])
+#### 1. fetch(url[, options`<Object>`])
 > 发起一个网络请求, options的参数如下。 同时支持配置公共域名, 公共参数。
 
   + method`<String>` 默认GET, 可选GET/POST/PUT/DELETE...
@@ -68,7 +68,6 @@ f1('/get_list', {body: {page: 1}})
 
 ```js
 fetch.BASE_URL = '//192.168.1.100'
-fetch.__INIT__ = {headers: {token: 123456}} // 2.x 之后将废弃, 不推荐使用了
 // 1.2.0开始支持注入
 fetch.inject.request(function(conf) {
   // 无需返回值, 但需要注意这是引用类型,不要对带个conf赋值
@@ -82,11 +81,12 @@ fetch.inject.response(function(res) {
 ```
 
 
-#### 2. fetch.create([BASE_URL][, options<Object>])
+#### 2. fetch.create()
-> 创建一个新的fetch实例
+> 创建一个新的fetch实例, 可以无限创建多个实例(用于同一个项目中有多组不同的接口)。
 
 ```js
-var another = fetch.create('//192.168.1.101')
+var another = fetch.create()
+another.BASE_URL = '//192.168.1.101'
 // 新创建的实例, 也支持注入
 another.inject.request(function(conf) {
   conf.headers.token = 123456
@@ -97,3 +97,8 @@ another.inject.response(function(res) {
 })
 
 ```
+
+
+### 旧版本
+
+请查阅 [1.x](./Readme%401.x.md)

Readme@1.x.md

@@ -0,0 +1,99 @@
+## ajax的全新封装
+> 统一走fetch的风格。内置参数处理, 支持多实例。
+
+
+## 浏览器兼容性
+
+![Chrome](https://raw.githubusercontent.com/alrra/browser-logos/master/src/chrome/chrome_48x48.png) | ![Firefox](https://raw.githubusercontent.com/alrra/browser-logos/master/src/firefox/firefox_48x48.png) | ![Safari](https://raw.githubusercontent.com/alrra/browser-logos/master/src/safari/safari_48x48.png) | ![Opera](https://raw.githubusercontent.com/alrra/browser-logos/master/src/opera/opera_48x48.png) | ![Edge](https://raw.githubusercontent.com/alrra/browser-logos/master/src/edge/edge_48x48.png) | ![IE](https://raw.githubusercontent.com/alrra/browser-logos/master/src/archive/internet-explorer_9-11/internet-explorer_9-11_48x48.png) |
+--- | --- | --- | --- | --- | --- |
+Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | 10+ ✔ |
+
+
+### 版本
+> 共有2个版本, 一个传统版本, 基于`XMLHttpRequest`; 另一个是新一代版本, 基于`window.fetch()`。
+
+**`注意:`**
+
+由于`window.fetch()`只支持`http/https`协议, 所以在一些特殊的环境下(如electron等), 请使用传统版。
+
+### 2个版本的区别
+
+1. 超时的返回值不一样。fetch版没有额外处理, 全由原生返回; 传统版为处理过, 统一返回`Response对象`。
+
+2. 缓存参数不一致, 传统版只有传入`no-store`才不会缓存,其他任何值都会缓存, 缓存机制由headers及浏览器机制决定。  fetch版支持完整的参数, 详见原生fetch文档。
+
+3. 验证机制,传参不一样。传统版credentials为布尔值; fetch版本则是支持omit, same-origin, include。
+
+
+### 示例
+
+```js
+import fetch from '//dist.bytedo.org/fetch/dist/index.js'   // 传统版
+// import fetch from '//dist.bytedo.org/fetch/dist/next.js'  // fetch版
+
+
+fetch('/get_list', {body: {page: 1}})
+  .then(r => r.json())
+  .then(list => {
+    console.log(list)
+  })
+
+
+// 创建一个新的fetch实例, 可传入新的基础域名, 和公共参数等
+var f1 = fetch.create('//192.168.1.101', {headers: {token: 123456}})
+
+f1('/get_list', {body: {page: 1}})
+  .then(r => r.json())
+  .then(list => {
+    console.log(list)
+  })
+
+
+```
+
+
+
+### APIs
+
+#### 1. fetch(url[, options`<Object>`])
+> 发起一个网络请求, options的参数如下。 同时支持配置公共域名, 公共参数。
+
+  + method`<String>` 默认GET, 可选GET/POST/PUT/DELETE...
+  + body`<Any>` 要发送的数据, 如果是不允许有`body`的方式, 会被自动拼接到url上
+  + cache`<String>`  是否缓存, 
+  + credentials`<String/Boolean>` 是否校验
+  + signal`<Object>`  网络控制信号, 可用于中断请求
+  + timeout`<Number>`  超时时间, 默认30秒, 单位毫秒
+
+
+```js
+fetch.BASE_URL = '//192.168.1.100'
+fetch.__INIT__ = {headers: {token: 123456}} // 2.x 之后将废弃, 不推荐使用了
+// 1.2.0开始支持注入
+fetch.inject.request(function(conf) {
+  // 无需返回值, 但需要注意这是引用类型,不要对带个conf赋值
+  conf.headers.token = 123456
+})
+
+// 响应注入, 需要有返回值
+fetch.inject.response(function(res) {
+  return res.json()
+})
+```
+
+
+#### 2. fetch.create([BASE_URL][, options<Object>])
+> 创建一个新的fetch实例, 可以无限创建多个实例(用于同一个项目中有多组不同的接口)。
+
+```js
+var another = fetch.create('//192.168.1.101')
+// 新创建的实例, 也支持注入
+another.inject.request(function(conf) {
+  conf.headers.token = 123456
+})
+
+another.inject.response(function(res) {
+  return res.json()
+})
+
+```

package.json

@@ -1,8 +1,8 @@
 {
   "name": "@bytedo/fetch",
-  "version": "1.2.0",
+  "version": "2.1.8",
   "description": "全新的ajax封装。分2个版本, 一个基于XMLHttpRequest, 一个基于window.fetch",
-  "main": "dist/index.js",
+  "main": "dist/next.js",
   "files": [
     "dist/*"
   ],

src/index.js

@@ -4,7 +4,7 @@
  * @date 2020/08/03 17:05:10
  */
 
-import { Format, toS } from './lib/format.js'
+import { Format, getType } from './lib/format.js'
 
 const NOBODY_METHODS = ['GET', 'HEAD']
 const FORM_TYPES = {
@@ -25,7 +25,7 @@ const ERRORS = {
 }
 
 Promise.defer = function () {
-  var _ = {}
+  let _ = {}
   _.promise = new Promise(function (y, n) {
     _.resolve = y
     _.reject = n
@@ -34,7 +34,7 @@ Promise.defer = function () {
 }
 
 class _Request {
-  constructor(url = '', options = {}, { BASE_URL, __INIT__ }, owner) {
+  constructor(url = '', options = {}, owner) {
     if (!url) {
       throw new Error(ERRORS[10001])
     }
@@ -42,9 +42,9 @@ class _Request {
     // url规范化
     url = url.replace(/#.*$/, '')
 
-    if (BASE_URL) {
+    if (owner.BASE_URL) {
       if (!/^([a-z]+:|\/\/)/.test(url)) {
-        url = BASE_URL + url
+        url = owner.BASE_URL + url
       }
     }
 
@@ -56,7 +56,6 @@ class _Request {
 
     this.options = {
       headers: {
-        'X-Requested-With': 'XMLHttpRequest',
         'content-type': FORM_TYPES.form
       },
       body: null,
@@ -67,25 +66,20 @@ class _Request {
     }
 
     if (!options.signal) {
-      var control = new AbortController()
+      let control = new AbortController()
       options.signal = control.signal
     }
     this.defer.promise.abort = function () {
       control.abort()
     }
 
-    let headers = this.options.headers
-
-    if (__INIT__.headers) {
-      Object.assign(headers, __INIT__.headers)
-    }
-
     if (options.headers) {
+      let headers = this.options.headers
       Object.assign(headers, options.headers)
-      delete options.headers
+      options.headers = headers
     }
 
-    Object.assign(this.options, __INIT__, options, { url, headers })
+    Object.assign(this.options, options, { url })
 
     if (owner._inject_req) {
       owner._inject_req(this.options)
@@ -96,11 +90,10 @@ class _Request {
   }
 
   __next__() {
-    var options = this.options
+    let options = this.options
-    var params = null
+    let params = null
-    var hasAttach = false // 是否有附件
+    let hasAttach = false // 是否有附件
-    var crossDomain = false // 是否跨域
+    let noBody = NOBODY_METHODS.includes(options.method)
-    var noBody = NOBODY_METHODS.includes(options.method)
 
     /* ------------------------  1»» 处理signal  ---------------------- */
     options.signal.onabort = _ => {
@@ -110,7 +103,7 @@ class _Request {
 
     /* --------------------------  2»» 请求的内容 --------------------- */
     if (options.body) {
-      var type = typeof options.body
+      let type = typeof options.body
       switch (type) {
         case 'number':
         case 'string':
@@ -118,6 +111,11 @@ class _Request {
           params = options.body
           break
         case 'object':
+          let _type = getType(options.body)
+
+          if (_type === 'ArrayBuffer' || _type === 'Uint8Array') {
+            break
+          }
           // 解析表单DOM
           if (options.body.nodeName === 'FORM') {
             options.method = options.body.method.toUpperCase() || 'POST'
@@ -134,11 +132,19 @@ class _Request {
             params = options.body
           } else {
             for (let k in options.body) {
-              if (toS.call(options.body[k]) === '[object File]') {
+              if (Array.isArray(options.body[k]) || getType(options.body[k]) === 'FileList') {
+                options.body[k] = Array.from(options.body[k])
+                hasAttach = options.body[k].some(
+                  it => getType(it) === 'File' || getType(it) === 'Blob'
+                )
+              } else {
+                if (getType(options.body[k]) === 'File' || getType(options.body[k]) === 'Blob') {
                   hasAttach = true
                   break
                 }
               }
+            }
+
             // 有附件,则改为FormData
             if (hasAttach) {
               if (noBody) {
@@ -150,27 +156,29 @@ class _Request {
             }
           }
       }
+    } else {
+      delete options.headers['content-type']
     }
+
     if (hasAttach) {
       delete options.headers['content-type']
     }
 
     /* --------------------------  3»» 处理跨域  --------------------- */
     try {
+      let crossDomain
       let $a = document.createElement('a')
-      $a.href = options.url
 
+      $a.href = options.url
       crossDomain = location.protocol !== $a.protocol || location.host !== $a.host
       $a = null
-    } catch (err) {}
 
       if (crossDomain) {
         if (options.credentials) {
           this.xhr.withCredentials = true
-      } else {
-        delete options.headers['X-Requested-With']
         }
       }
+    } catch (err) {}
 
     /* ------------- 4»» 根据method类型, 处理表单数据  ---------------- */
 
@@ -178,16 +186,17 @@ class _Request {
     if (noBody) {
       params = Format.param(params)
       if (params) {
-        options.url += (~options.url.indexOf('?') ? '&' : '?') + params
+        options.url += (options.url.includes('?') ? '&' : '?') + params
       }
       if (options.cache === 'no-store') {
-        options.url += (~options.url.indexOf('?') ? '&' : '?') + '_t_=' + Date.now()
+        options.url += (options.url.includes('?') ? '&' : '?') + '_t_=' + Date.now()
       }
     } else {
-      if (!hasAttach) {
+      if (options.body && !hasAttach) {
-        if (~options.headers['content-type'].indexOf('json')) {
+        if (options.headers['content-type'].includes('json')) {
           params = JSON.stringify(params)
-        } else {
+        }
+        if (options.headers['content-type'].includes('form')) {
           params = Format.param(params)
         }
       }
@@ -285,25 +294,31 @@ class _Request {
   }
 
   __success__(isSucc, result) {
-    var { body, status, statusText, headers } = result
+    let { body, status, statusText, headers } = result
-    var response = new Response(body, { status, statusText, headers })
+    let response = new Response(body, { status, statusText, headers })
+    let _type
 
     if (this._owner._inject_res) {
       response = this._owner._inject_res(response)
+      _type = getType(it)(response)
     }
 
     if (isSucc) {
       this.defer.resolve(response)
+    } else {
+      if (_type === 'Promise') {
+        return response.then(_ => this.defer.reject(_)).catch(_ => this.defer.reject(_))
       } else {
         this.defer.reject(response)
       }
+    }
     delete this.xhr
     delete this.options
     delete this.defer
   }
 
   __cancel__(result) {
-    var response = new Response('', {
+    let response = new Response('', {
       status: 0,
       statusText: ERRORS[10100]
     })
@@ -316,7 +331,7 @@ class _Request {
   }
 
   __timeout__(result) {
-    var response = new Response('', {
+    let response = new Response('', {
       status: 504,
       statusText: ERRORS[10504]
     })
@@ -329,18 +344,6 @@ class _Request {
   }
 }
 
-const _fetch = function (url, options) {
-  return new _Request(
-    url,
-    options,
-    {
-      BASE_URL: _fetch.BASE_URL,
-      __INIT__: _fetch.__INIT__ || Object.create(null)
-    },
-    _fetch
-  )
-}
-
 function inject(target) {
   target.inject = {
     request(callback) {
@@ -351,10 +354,13 @@ function inject(target) {
     }
   }
 }
+const _fetch = function (url, options) {
+  return new _Request(url, options, _fetch)
+}
 
-_fetch.create = function (BASE_URL, __INIT__ = Object.create(null)) {
+_fetch.create = function () {
-  var another = function (url, options) {
+  let another = function (url, options) {
-    return new _Request(url, options, { BASE_URL, __INIT__ }, another)
+    return new _Request(url, options, another)
   }
   inject(another)
   return another

src/lib/format.js

@@ -5,15 +5,17 @@
  *
  */
 
-export const toS = Object.prototype.toString
 export const encode = encodeURIComponent
 export const decode = decodeURIComponent
 
+export function getType(val) {
+  return Object.prototype.toString.call(val).slice(8, -1)
+}
 /**
  * 表单序列化
  */
 function serialize(p, obj, query) {
-  var k
+  let k
   if (Array.isArray(obj)) {
     obj.forEach(function (it, i) {
       k = p ? `${p}[${Array.isArray(it) ? i : ''}]` : i
@@ -82,13 +84,17 @@ export const Format = {
   mkFormData(data) {
     let form = new FormData()
     for (let i in data) {
-      let el = data[i]
+      let val = data[i]
-      if (Array.isArray(el)) {
+      if (val === void 0) {
-        el.forEach(function(it) {
+        val = ''
+      }
+
+      if (Array.isArray(val)) {
+        val.forEach(function (it) {
           form.append(i + '[]', it)
         })
       } else {
-        form.append(i, data[i])
+        form.append(i, val)
       }
     }
     return form
@@ -104,8 +110,14 @@ export const Format = {
         return
       }
 
+      if (v === void 0) {
+        v = ''
+      }
+
+      let _type = getType(v)
+
       v = typeof v === 'function' ? v() : v
-      v = toS.call(v) === '[object File]' ? v : encode(v)
+      v = _type === 'File' || _type === 'Blob' ? v : encode(v)
 
       arr.push(encode(k) + '=' + v)
     }

src/next.js

@@ -4,7 +4,7 @@
  * @date 2020/07/31 18:59:47
  */
 
-import { Format, toS } from './lib/format.js'
+import { Format, getType } from './lib/format.js'
 
 const nativeFetch = window.fetch
 const NOBODY_METHODS = ['GET', 'HEAD']
@@ -26,7 +26,7 @@ const ERRORS = {
 }
 
 class _Request {
-  constructor(url = '', options = {}, { BASE_URL, __INIT__ }, owner) {
+  constructor(url = '', options = {}, owner) {
     if (!url) {
       throw new Error(ERRORS[10001])
     }
@@ -34,9 +34,9 @@ class _Request {
     // url规范化
     url = url.replace(/#.*$/, '')
 
-    if (BASE_URL) {
+    if (owner.BASE_URL) {
       if (!/^([a-z]+:|\/\/)/.test(url)) {
-        url = BASE_URL + url
+        url = owner.BASE_URL + url
       }
     }
 
@@ -46,7 +46,6 @@ class _Request {
 
     this.options = {
       headers: {
-        'X-Requested-With': 'XMLHttpRequest',
         'content-type': FORM_TYPES.form
       },
       body: null,
@@ -60,18 +59,13 @@ class _Request {
       options.signal = this.control.signal
     }
 
-    let headers = this.options.headers
-
-    if (__INIT__.headers) {
-      Object.assign(headers, __INIT__.headers)
-    }
-
     if (options.headers) {
+      let headers = this.options.headers
       Object.assign(headers, options.headers)
-      delete options.headers
+      options.headers = headers
     }
 
-    Object.assign(this.options, __INIT__, options, { url, headers })
+    Object.assign(this.options, options, { url })
 
     if (owner._inject_req) {
       owner._inject_req(this.options)
@@ -81,86 +75,88 @@ class _Request {
   }
 
   __next__() {
-    var options = this.options
+    let options = this.options
-    var params = null
+    let hasAttach = false // 是否有附件
-    var hasAttach = false // 是否有附件
+    let noBody = NOBODY_METHODS.includes(options.method)
-    var crossDomain = false // 是否跨域
-    var noBody = NOBODY_METHODS.includes(options.method)
 
     /* --------------------------  1»» 请求的内容 --------------------- */
     if (options.body) {
-      var type = typeof options.body
+      let type = typeof options.body
       switch (type) {
         case 'number':
         case 'string':
           this.__type__('text')
-          params = options.body
           break
         case 'object':
+          let _type = getType(options.body)
+
+          if (_type === 'ArrayBuffer' || _type === 'Uint8Array') {
+            break
+          }
+
           // 解析表单DOM
           if (options.body.nodeName === 'FORM') {
             options.method = options.body.method.toUpperCase() || 'POST'
 
-            params = Format.parseForm(options.body)
+            options.body = Format.parseForm(options.body)
-            hasAttach = params.constructor === FormData
+            hasAttach = options.body.constructor === FormData
 
             // 如果是一个 FormData对象,且为不允许携带body的方法,则直接改为POST
           } else if (options.body.constructor === FormData) {
             hasAttach = true
+            // 修正请求类型
             if (noBody) {
               options.method = 'POST'
             }
-            params = options.body
           } else {
             for (let k in options.body) {
-              if (toS.call(options.body[k]) === '[object File]') {
+              if (Array.isArray(options.body[k]) || getType(options.body[k]) === 'FileList') {
+                options.body[k] = Array.from(options.body[k])
+                hasAttach = options.body[k].some(
+                  it => getType(it) === 'File' || getType(it) === 'Blob'
+                )
+              } else {
+                if (getType(options.body[k]) === 'File' || getType(options.body[k]) === 'Blob') {
                   hasAttach = true
                   break
                 }
               }
+            }
             // 有附件,则改为FormData
             if (hasAttach) {
               if (noBody) {
                 options.method = 'POST'
               }
-              params = Format.mkFormData(options.body)
+              options.body = Format.mkFormData(options.body)
+            }
+          }
+          break
+      }
     } else {
-              params = options.body
+      delete options.headers['content-type']
-            }
-          }
-      }
     }
+
     if (hasAttach) {
       delete options.headers['content-type']
     }
 
     /* --------------------------  2»» 处理跨域  --------------------- */
-    try {
-      let $a = document.createElement('a')
-      $a.href = options.url
-
-      crossDomain = location.protocol !== $a.protocol || location.host !== $a.host
-      $a = null
-    } catch (err) {}
-
-    if (crossDomain && options.credentials === 'omit') {
-      delete options.headers['X-Requested-With']
-    }
 
     /* ------------- 3»» 根据method类型, 处理表单数据  ---------------- */
 
     // 拼接到url上
     if (noBody) {
-      params = Format.param(params)
+      let tmp = Format.param(options.body)
-      if (params) {
+      if (tmp) {
-        options.url += (~options.url.indexOf('?') ? '&' : '?') + params
+        options.url += (options.url.includes('?') ? '&' : '?') + tmp
       }
+      delete options.body
     } else {
-      if (!hasAttach) {
+      if (options.body && !hasAttach) {
-        if (~options.headers['content-type'].indexOf('json')) {
+        if (options.headers['content-type'].includes('json')) {
-          params = JSON.stringify(params)
+          options.body = JSON.stringify(options.body)
-        } else {
+        } else if (options.headers['content-type'].includes('form')) {
-          params = Format.param(params)
+          options.body = Format.param(options.body)
         }
       }
     }
@@ -175,7 +171,7 @@ class _Request {
     }
 
     /* -----------------    5»» 构造请求    ------------------- */
-    var url = options.url
+    let url = options.url
     delete options.url
     for (let k in options) {
       if (options[k] === null || options[k] === undefined || options[k] === '') {
@@ -186,14 +182,20 @@ class _Request {
       .then(r => {
         clearTimeout(this.timer)
         let isSucc = r.status >= 200 && r.status < 400
+        let _type
         if (this._owner._inject_res) {
           r = this._owner._inject_res(r)
+          _type = getType(r)
         }
         if (isSucc) {
           return r
+        } else {
+          if (_type === 'Promise') {
+            return r.then(_ => Promise.reject(_))
           } else {
             return Promise.reject(r)
           }
+        }
       })
       .catch(e => {
         clearTimeout(this.timer)
@@ -210,17 +212,6 @@ class _Request {
   }
 }
 
-const _fetch = function (url, options) {
-  return new _Request(
-    url,
-    options,
-    {
-      BASE_URL: _fetch.BASE_URL,
-      __INIT__: _fetch.__INIT__ || Object.create(null)
-    },
-    _fetch
-  )
-}
 function inject(target) {
   target.inject = {
     request(callback) {
@@ -232,9 +223,13 @@ function inject(target) {
   }
 }
 
-_fetch.create = function (BASE_URL, __INIT__ = Object.create(null)) {
+const _fetch = function (url, options) {
-  var another = function (url, options) {
+  return new _Request(url, options, _fetch)
-    return new _Request(url, options, { BASE_URL, __INIT__ }, another)
+}
+
+_fetch.create = function () {
+  let another = function (url, options) {
+    return new _Request(url, options, another)
   }
   inject(another)
   return another