优化代码

.vscode/launch.json

@@ -0,0 +1,21 @@
+{
+  // 使用 IntelliSense 了解相关属性。 
+  // 悬停以查看现有属性的描述。
+  // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "name": "vscode-jest-tests",
+      "request": "launch",
+      "args": [
+        "--runInBand"
+      ],
+      "cwd": "${workspaceFolder}",
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "disableOptimisticBPs": true,
+      "program": "${workspaceFolder}/node_modules/jest/bin/jest"
+    }
+  ]
+}

package.json

@@ -37,7 +37,9 @@
   },
   "keywords": [
     "axios",
-    "miniprogram"
+    "miniprogram",
+    "request",
+    "promise"
   ],
   "author": "early-autumn",
   "license": "MIT",

src/adaptive.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-17 12:18:25
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-22 13:24:28
+ * @LastEditTime: 2020-04-23 10:53:50
  */
 import { Adapter, Platform } from './types';
 
@@ -19,24 +19,24 @@ declare let tt: Platform;
 // QQ 小程序
 declare let qq: Platform;
 
-const stack = [
+/**
+ * 自适应当前平台
+ */
+function adaptive(): Adapter | undefined {
+  const stack = [
     () => uni.request,
     () => wx.request,
     () => my.request,
     () => swan.request,
     () => tt.request,
     () => qq.request,
-];
+  ];
 
-/**
- * 自适应当前平台
- */
-function adaptive(): Adapter | undefined {
   let adapter: Adapter | undefined;
 
   while (stack.length !== 0 && adapter === undefined) {
     try {
-      adapter = (stack.shift() as () => Adapter | undefined)();
+      adapter = stack.shift()?.();
     } catch (err) {}
   }
 

src/axios.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-15 12:45:18
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-23 10:44:18
+ * @LastEditTime: 2020-04-24 09:16:56
  */
 import { AxiosRequestConfig, Data, AxiosResponse, AxiosBaseInstance, AxiosInstance } from './types';
 import Axios from './core/Axios';
@@ -16,8 +16,8 @@ import defaults from './defaults';
  *
  * 返回一个 Axios 实例增强
  */
-function createInstance(config: AxiosRequestConfig): AxiosInstance {
+function createInstance(defaults: AxiosRequestConfig = {}): AxiosInstance {
-  const instance = new Axios(config);
+  const instance = new Axios(defaults);
 
   /**
    * 支持重载的 axios 函数
@@ -26,18 +26,16 @@ function createInstance(config: AxiosRequestConfig): AxiosInstance {
     url: AxiosRequestConfig | string,
     config: AxiosRequestConfig = {}
   ): Promise<AxiosResponse<T>> {
-    let requestConfig: AxiosRequestConfig;
-
     // 调用方式一处理请求配置
     if (typeof url !== 'string') {
-      requestConfig = url;
+      config = url;
     }
     // 调用方式二处理请求配置
     else {
-      requestConfig = { ...config, url };
+      config = { ...config, url };
     }
 
-    return instance.request(requestConfig);
+    return instance.request(config);
   }
 
   // instance 的属性合并到 axios 函数中
@@ -54,8 +52,8 @@ function createInstance(config: AxiosRequestConfig): AxiosInstance {
 const axios = createInstance(defaults);
 
 // 添加 create 工厂方法
-axios.create = function create(config: AxiosRequestConfig = {}): AxiosBaseInstance {
+axios.create = function create(defaults: AxiosRequestConfig = {}): AxiosBaseInstance {
-  return createInstance(mergeConfig(axios.defaults, config));
+  return createInstance(mergeConfig(axios.defaults, defaults));
 };
 
 // 添加 Axios 类
@@ -68,3 +66,11 @@ axios.CancelToken = CancelToken;
 axios.isCancel = isCancel;
 
 export default axios;
+
+export type En<T, U> = T extends U ? never : T;
+
+export type Enn = En<number | string, string>;
+
+export type Eni<T, U> = T extends U ? T : never;
+
+export type Enni = Eni<number | string, string>;

src/cancel/Cancel.ts

@@ -2,16 +2,15 @@
  * @Author: early-autumn
  * @Date: 2020-04-13 21:14:53
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-22 17:38:43
+ * @LastEditTime: 2020-04-23 20:56:34
  */
 import { Cancel } from '../types';
 
 export default class CancelStatic implements Cancel {
-  public message?: string;
+  /**
-
+   * @param message 取消信息
-  constructor(message?: string) {
+   */
-    this.message = message;
+  constructor(public message?: string) {}
-  }
 
   public toString() {
     const message = this.message ? `: ${this.message}` : '';

src/cancel/isCancel.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-14 09:23:25
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-20 15:15:27
+ * @LastEditTime: 2020-04-23 22:44:43
  */
 import Cancel from './Cancel';
 
@@ -11,6 +11,6 @@ import Cancel from './Cancel';
  *
  * @param value 判断的值
  */
-export default function isCancel(value: any): boolean {
+export default function isCancel(value: any): value is Cancel {
-  return !!value && value instanceof Cancel;
+  return value instanceof Cancel;
 }

src/core/Axios.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-13 18:00:27
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-23 10:12:56
+ * @LastEditTime: 2020-04-23 23:43:00
  */
 import { Method, Params, Data, Interceptors, AxiosRequestConfig, AxiosResponse, Axios } from '../types';
 import buildURL from '../helpers/buildURL';
@@ -11,26 +11,18 @@ import InterceptorManager from './InterceptorManager';
 import dispatchRequest from './dispatchRequest';
 
 export default class AxiosStatic implements Axios {
-  /**
-   * 默认配置
-   */
-  public defaults: AxiosRequestConfig;
-
   /**
    *  Axios 拦截器
    */
-  public interceptors: Interceptors;
+  public interceptors: Interceptors = {
-
-  /**
-   * @param config 自定义默认配置
-   */
-  constructor(config: AxiosRequestConfig = {}) {
-    this.defaults = config;
-    this.interceptors = {
     request: new InterceptorManager<AxiosRequestConfig>(),
     response: new InterceptorManager<AxiosResponse>(),
   };
-  }
+
+  /**
+   * @param defaults 自定义默认配置
+   */
+  constructor(public defaults: AxiosRequestConfig = {}) {}
 
   /**
    * 根据配置中的 url 和 params 生成一个 URI

src/core/InterceptorManager.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-15 17:50:50
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-23 09:16:23
+ * @LastEditTime: 2020-04-23 20:54:24
  */
 import {
   InterceptorResolved,
@@ -19,17 +19,12 @@ export default class InterceptorManagerStatic<T> implements InterceptorManager<T
   /**
    * 生成拦截器 id
    */
-  private _id: number;
+  private _id = 0;
 
   /**
    * 拦截器集合
    */
-  private _interceptors: Record<number, Interceptor<T>>;
+  private _interceptors: Record<number, Interceptor<T>> = {};
-
-  constructor() {
-    this._id = 0;
-    this._interceptors = {};
-  }
 
   /**
    * 添加拦截器

src/core/createError.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-14 22:23:39
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-23 10:34:18
+ * @LastEditTime: 2020-04-23 23:47:26
  */
 import { AxiosRequestConfig, RequestConfig, AxiosResponse } from '../types';
 
@@ -13,22 +13,7 @@ class AxiosError extends Error {
   /**
    * 是 Axios 错误
    */
-  public isAxiosError: boolean;
+  public isAxiosError = true;
-
-  /**
-   * Axios 请求配置
-   */
-  public config: AxiosRequestConfig;
-
-  /**
-   * 通用请求配置
-   */
-  public request: RequestConfig;
-
-  /**
-   * Axios 响应体
-   */
-  public response?: AxiosResponse;
 
   /**
    * @param message  错误信息
@@ -36,14 +21,14 @@ class AxiosError extends Error {
    * @param request  通用请求配置
    * @param response Axios 响应体
    */
-  constructor(message: string, config: AxiosRequestConfig, request: RequestConfig, response?: AxiosResponse) {
+  constructor(
+    message: string,
+    public config: AxiosRequestConfig,
+    public request: RequestConfig,
+    public response?: AxiosResponse
+  ) {
     super(message);
 
-    this.isAxiosError = true;
-    this.config = config;
-    this.request = request;
-    this.response = response;
-
     // 修复继承系统自带类 prototype 设置失败的问题
     Object.setPrototypeOf(this, AxiosError.prototype);
   }

src/core/mergeConfig.ts

@@ -2,11 +2,31 @@
  * @Author: early-autumn
  * @Date: 2020-04-15 22:48:25
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-21 10:43:39
+ * @LastEditTime: 2020-04-23 23:55:19
  */
 import { AnyObject, AxiosRequestConfig } from '../types';
 import { isPlainObject, deepMerge } from '../helpers/utils';
 
+type OnlyFromConfig2Key = 'url' | 'data';
+type PriorityFromConfig2Key =
+  | 'adapter'
+  | 'baseURL'
+  | 'method'
+  | 'validateStatus'
+  | 'paramsSerializer'
+  | 'transformRequest'
+  | 'transformResponse'
+  | 'errorHandler'
+  | 'cancelToken'
+  | 'dataType'
+  | 'responseType'
+  | 'timeout'
+  | 'enableHttp2'
+  | 'enableQuic'
+  | 'enableCache'
+  | 'sslVerify';
+type DeepMergeConfigKey = 'params' | 'headers';
+
 /**
  * 只取 config2 中的配置
  *
@@ -14,7 +34,7 @@ import { isPlainObject, deepMerge } from '../helpers/utils';
  * @param config
  * @param config2
  */
-function onlyFromConfig2(keys: ['url', 'data'], config: AxiosRequestConfig, config2: AxiosRequestConfig) {
+function onlyFromConfig2(keys: OnlyFromConfig2Key[], config: AxiosRequestConfig, config2: AxiosRequestConfig) {
   keys.forEach((key) => {
     if (config2[key] !== undefined) {
       config[key] = config2[key] as any;
@@ -31,24 +51,7 @@ function onlyFromConfig2(keys: ['url', 'data'], config: AxiosRequestConfig, conf
  * @param config2
  */
 function priorityFromConfig2(
-  keys: [
+  keys: PriorityFromConfig2Key[],
-    'adapter',
-    'baseURL',
-    'method',
-    'validateStatus',
-    'paramsSerializer',
-    'transformRequest',
-    'transformResponse',
-    'errorHandler',
-    'cancelToken',
-    'dataType',
-    'responseType',
-    'timeout',
-    'enableHttp2',
-    'enableQuic',
-    'enableCache',
-    'sslVerify'
-  ],
   config: AxiosRequestConfig,
   config1: AxiosRequestConfig,
   config2: AxiosRequestConfig
@@ -71,7 +74,7 @@ function priorityFromConfig2(
  * @param config2
  */
 function deepMergeConfig(
-  keys: ['headers', 'params'],
+  keys: DeepMergeConfigKey[],
   config: AxiosRequestConfig,
   config1: AxiosRequestConfig,
   config2: AxiosRequestConfig
@@ -96,10 +99,8 @@ export default function mergeConfig(
   config2: AxiosRequestConfig = {}
 ): AxiosRequestConfig {
   const config: AxiosRequestConfig = {};
-
+  const onlyFromConfig2Keys: OnlyFromConfig2Key[] = ['url', 'data'];
-  onlyFromConfig2(['url', 'data'], config, config2);
+  const priorityFromConfig2Keys: PriorityFromConfig2Key[] = [
-  priorityFromConfig2(
-    [
     'adapter',
     'baseURL',
     'method',
@@ -116,12 +117,12 @@ export default function mergeConfig(
     'enableQuic',
     'enableCache',
     'sslVerify',
-    ],
+  ];
-    config,
+  const deepMergeConfigKeys: DeepMergeConfigKey[] = ['headers', 'params'];
-    config1,
+
-    config2
+  onlyFromConfig2(onlyFromConfig2Keys, config, config2);
-  );
+  priorityFromConfig2(priorityFromConfig2Keys, config, config1, config2);
-  deepMergeConfig(['headers', 'params'], config, config1, config2);
+  deepMergeConfig(deepMergeConfigKeys, config, config1, config2);
 
   return config;
 }

src/core/transformData.ts

@@ -2,14 +2,14 @@
  * @Author: early-autumn
  * @Date: 2020-04-16 22:37:44
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-17 13:42:13
+ * @LastEditTime: 2020-04-23 23:09:24
  */
 import { Data, Headers, TransformData } from '../types';
 
 /**
  * 转换数据
  *
- * @param data       请求数据或响应诗句
+ * @param data       请求数据或响应数据
  * @param headers    请求头或响应头
  * @param transforms 请求数据转换函数或响应数据转换函数
  */

src/core/transformRequest.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-17 15:05:43
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-20 13:41:15
+ * @LastEditTime: 2020-04-24 08:53:57
  */
 import { AxiosRequestConfig, RequestConfig } from '../types';
 import { pick } from '../helpers/utils';
@@ -11,17 +11,6 @@ import combineURL from '../helpers/combineURL';
 import buildURL from '../helpers/buildURL';
 import { methodToUppercase } from './transformMethod';
 
-type PickKeys =
-  | 'data'
-  | 'headers'
-  | 'dataType'
-  | 'responseType'
-  | 'timeout'
-  | 'enableHttp2'
-  | 'enableQuic'
-  | 'enableCache'
-  | 'sslVerify';
-
 /**
  * 根据配置中的 baseURL 和 url 和 params 生成完整 URL
  *
@@ -42,9 +31,11 @@ function transformURL(config: AxiosRequestConfig): string {
  * @param config Axios 请求配置
  */
 export default function transformRequest(config: AxiosRequestConfig): RequestConfig {
-  const url = transformURL(config);
+  return {
-  const method = methodToUppercase(config.method);
+    url: transformURL(config),
-  const pickRequest = pick<AxiosRequestConfig, PickKeys>(
+    method: methodToUppercase(config.method),
+    header: config.headers,
+    ...pick(
       config,
       'data',
       'headers',
@@ -55,12 +46,6 @@ export default function transformRequest(config: AxiosRequestConfig): RequestCon
       'enableQuic',
       'enableCache',
       'sslVerify'
-  );
+    ),
-
-  return {
-    url,
-    method,
-    header: config.headers,
-    ...pickRequest,
   } as RequestConfig;
 }

src/core/transformResponse.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-17 14:09:16
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-22 13:06:27
+ * @LastEditTime: 2020-04-24 08:54:42
  */
 import { AxiosRequestConfig, AxiosResponse, Response } from '../types';
 import { pick } from '../helpers/utils';
@@ -26,6 +26,6 @@ export default function transformResponse(response: Response, config: AxiosReque
     statusText,
     headers,
     config,
-    ...pick<Response, 'data' | 'cookies' | 'profile'>(response, 'data', 'cookies', 'profile'),
+    ...pick(response, 'data', 'cookies', 'profile'),
   };
 }

src/helpers/utils.ts

@@ -2,7 +2,7 @@
  * @Author: early-autumn
  * @Date: 2020-04-13 21:55:40
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-22 13:02:06
+ * @LastEditTime: 2020-04-23 22:38:30
  */
 import { AnyObject } from '../types';
 

src/types.ts

@@ -2,13 +2,15 @@
  * @Author: early-autumn
  * @Date: 2020-04-13 15:23:53
  * @LastEditors: early-autumn
- * @LastEditTime: 2020-04-23 10:43:58
+ * @LastEditTime: 2020-04-24 09:00:02
  */
 
 /**
  * 任意值对象
  */
-export declare type AnyObject<T extends any = any> = Record<string, T>;
+export declare interface AnyObject<T extends any = any> {
+  [x: string]: T;
+}
 
 /**
  * 请求方法
@@ -38,52 +40,7 @@ export declare type Data = string | AnyObject | ArrayBuffer;
 /**
  * Axios 头
  */
-export declare interface Headers {
+export declare interface Headers extends Partial<Record<'common' | AliasMethod, AnyObject<string>>> {
-  /**
-   * 通用配置
-   */
-  common?: AnyObject<string>;
-
-  /**
-   * options 请求专用
-   */
-  options?: AnyObject<string>;
-
-  /**
-   * get 请求专用
-   */
-  get?: AnyObject<string>;
-
-  /**
-   * head 请求专用
-   */
-  head?: AnyObject<string>;
-
-  /**
-   * post 请求专用
-   */
-  post?: AnyObject<string>;
-
-  /**
-   * put 请求专用
-   */
-  put?: AnyObject<string>;
-
-  /**
-   * delete 请求专用
-   */
-  delete?: AnyObject<string>;
-
-  /**
-   * trace 请求专用
-   */
-  trace?: AnyObject<string>;
-
-  /**
-   * connect 请求专用
-   */
-  connect?: AnyObject<string>;
-
   /**
    * 自定义配置
    */
@@ -727,7 +684,7 @@ export declare interface AxiosInstance extends AxiosBaseInstance {
    *
    * @param config 自定义默认配置
    */
-  create(config?: AxiosRequestConfig): AxiosBaseInstance;
+  create(defaults?: AxiosRequestConfig): AxiosBaseInstance;
 
   /**
    * Axios 类