feat: modern rewrite and refactoring

.browserslistrc

@@ -0,0 +1,5 @@
+# Browsers that we support
+
+> 1%
+last 2 versions
+ie 9

.dist.babelrc

@@ -0,0 +1,10 @@
+{
+  "presets": [
+    ["@babel/env", {
+      "targets": {
+        "browsers": [ "> 1%", "last 2 versions", "ie 9" ]
+      }
+    }]
+  ],
+  "plugins": [ "@babel/transform-runtime" ]
+}

.dist.eslintrc

@@ -0,0 +1,33 @@
+{
+  "extends": ["eslint:recommended"],
+  "env": {
+    "node": true,
+    "browser": true,
+    "amd": true,
+    "es6": true
+  },
+  "plugins": ["compat"],
+  "rules": {
+    "compat/compat": "error",
+    "no-console": "off",
+    "no-empty": "off",
+    "no-extra-semi": "off",
+    "no-func-assign": "off",
+    "no-undef": "off",
+    "no-unused-vars": "off",
+    "no-useless-escape": "off",
+    "no-cond-assign": "off"
+  },
+  "globals": {
+    "regeneratorRuntime": "writable"
+  },
+  "settings": {
+    "polyfills": [
+      "Promise",
+      "Array.from",
+      "Symbol",
+      "Object.getOwnPropertySymbols",
+      "Object.setPrototypeOf"
+    ]
+  }
+}

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.gitattributes

@@ -0,0 +1 @@
+* text=auto

.gitignore

@@ -9,4 +9,9 @@ components
 test/node/fixtures/tmp.json
 .idea
 superagent.js
-package-lock.json
+package-lock.json
+*.log
+coverage
+.nyc_output
+lib
+dist

.lib.babelrc

@@ -0,0 +1,9 @@
+{
+  "presets": [
+    ["@babel/env", {
+      "targets": {
+        "node": "6.4.0"
+      }
+    }]
+  ]
+}

.lib.eslintrc

@@ -0,0 +1,18 @@
+{
+  "extends": ["eslint:recommended", "plugin:node/recommended"],
+  "rules": {
+    "node/no-deprecated-api": "off",
+    "no-console": "off",
+    "no-unused-vars": "off",
+    "no-empty": "off"
+  },
+  "overrides": [
+    {
+      "files": [ "lib/client.js" ],
+      "env": { "browser": true },
+      "globals": {
+        "ActiveXObject": "readable"
+      }
+    }
+  ]
+}

.npmignore

@@ -5,3 +5,8 @@ examples
 lib-cov
 coverage.html
 bower.json
+coverage
+src
+.travis.yml
+.nojekyll
+.nyc_output

.remarkignore

@@ -0,0 +1,3 @@
+CONTRIBUTING.md
+HISTORY.md
+docs

.travis.yml

@@ -4,12 +4,12 @@ node_js:
   - "10"
   - "8"
   - "6"
-
+after_success:
+  npm run coverage
 env:
   global:
     - SAUCE_USERNAME='shtylman-superagent'
     - SAUCE_ACCESS_KEY='39a45464-cb1d-4b8d-aa1f-83c7c04fa673'
-
 matrix:
   include:
     - node_js: "9"

.zuul.yml

@@ -13,5 +13,4 @@ browsers:
 browserify:
   - transform:
       name: babelify
-      presets:
-        - [ babel-preset-es2015, { loose: true } ]
+      configFile: './.dist.babelrc'

README.md

@@ -0,0 +1,243 @@
+# superagent
+
+[![build status](https://img.shields.io/travis/visionmedia/superagent.svg)](https://travis-ci.org/visionmedia/superagent)
+[![code coverage](https://img.shields.io/codecov/c/github/visionmedia/superagent.svg)](https://codecov.io/gh/visionmedia/superagent)
+[![code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)
+[![styled with prettier](https://img.shields.io/badge/styled_with-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
+[![made with lass](https://img.shields.io/badge/made_with-lass-95CC28.svg)](https://lass.js.org)
+[![license](https://img.shields.io/github/license/visionmedia/superagent.svg)](LICENSE)
+
+> Small progressive client-side HTTP request library, and Node.js module with the same API, sporting many high-level HTTP client features
+
+
+## Table of Contents
+
+* [Install](#install)
+* [Usage](#usage)
+  * [Node](#node)
+  * [Browser](#browser)
+* [Supported Platforms](#supported-platforms)
+  * [Required Browser Features](#required-browser-features)
+* [Plugins](#plugins)
+* [Upgrading from previous versions](#upgrading-from-previous-versions)
+* [Contributors](#contributors)
+* [License](#license)
+
+
+## Install
+
+[npm][]:
+
+```sh
+npm install superagent
+```
+
+[yarn][]:
+
+```sh
+yarn add superagent
+```
+
+
+## Usage
+
+### Node
+
+```js
+const superagent = require('superagent');
+
+superagent
+  .post('/api/pet')
+  .send({ name: 'Manny', species: 'cat' }) // sends a JSON post body
+  .set('X-API-Key', 'foobar')
+  .set('accept', 'json')
+  .end((err, res) => {
+    // Calling the end function will send the request
+  });
+```
+
+### Browser
+
+**The browser-ready, minified version of `superagent` is only 19 KB!**
+
+Browser-ready versions of this module are available via [jsdelivr][], [unpkg][], and also in the `node_modules/superagent/dist` folder in downloads of the `superagent` package.
+
+> Note that we also provide unminified versions with `.js` instead of `.min.js` file extensions.
+
+#### VanillaJS
+
+This is the solution for you if you're just using `<script>` tags everywhere!
+
+```html
+<script src="https://cdn.jsdelivr.net/npm/superagent"></script>
+<!-- if you wish to use unpkg.com instead: -->
+<!-- <script src="https://unpkg.com/superagent"></script> -->
+<script type="text/javascript">
+  (function() {
+    // superagent is exposed as `window.superagent`
+    // if you wish to use "request" instead please
+    // uncomment the following line of code:
+    // `window.request = superagent;`
+    superagent
+      .post('/api/pet')
+      .send({ name: 'Manny', species: 'cat' }) // sends a JSON post body
+      .set('X-API-Key', 'foobar')
+      .set('accept', 'json')
+      .end((err, res) => {
+        // Calling the end function will send the request
+      });
+  })();
+</script>
+```
+
+#### Bundler
+
+If you are using [browserify][], [webpack][], [rollup][], or another bundler, then you can follow the same usage as [Node](#node) above.
+
+
+## Supported Platforms
+
+* Node: v6.x+
+* Browsers (see [.browserslistrc](.browserslistrc)):
+
+  ```sh
+  npx browserslist
+  ```
+
+  ```sh
+  and_chr 71
+  and_ff 64
+  and_qq 1.2
+  and_uc 11.8
+  android 67
+  android 4.4.3-4.4.4
+  baidu 7.12
+  bb 10
+  bb 7
+  chrome 73
+  chrome 72
+  chrome 71
+  edge 18
+  edge 17
+  firefox 66
+  firefox 65
+  ie 11
+  ie 10
+  ie 9
+  ie_mob 11
+  ie_mob 10
+  ios_saf 12.0-12.1
+  ios_saf 11.3-11.4
+  op_mini all
+  op_mob 46
+  op_mob 12.1
+  opera 58
+  opera 57
+  safari 12
+  safari 11.1
+  samsung 8.2
+  samsung 7.2-7.4
+  ```
+
+### Required Browser Features
+
+* IE9 requires a polyfill for `window.FormData` (we recommend [formdata-polyfill][])
+
+
+## Plugins
+
+SuperAgent is easily extended via plugins.
+
+```js
+const nocache = require('superagent-no-cache');
+const superagent = require('superagent');
+const prefix = require('superagent-prefix')('/static');
+
+superagent
+  .get('/some-url')
+  .query({ action: 'edit', city: 'London' }) // query string
+  .use(prefix) // Prefixes *only* this request
+  .use(nocache) // Prevents caching of *only* this request
+  .end((err, res) => {
+    // Do something
+  });
+```
+
+Existing plugins:
+
+* [superagent-no-cache](https://github.com/johntron/superagent-no-cache) - prevents caching by including Cache-Control header
+* [superagent-prefix](https://github.com/johntron/superagent-prefix) - prefixes absolute URLs (useful in test environment)
+* [superagent-suffix](https://github.com/timneutkens1/superagent-suffix) - suffix URLs with a given path
+* [superagent-mock](https://github.com/M6Web/superagent-mock) - simulate HTTP calls by returning data fixtures based on the requested URL
+* [superagent-mocker](https://github.com/shuvalov-anton/superagent-mocker) — simulate REST API
+* [superagent-cache](https://github.com/jpodwys/superagent-cache) - A global SuperAgent patch with built-in, flexible caching
+* [superagent-cache-plugin](https://github.com/jpodwys/superagent-cache-plugin) - A SuperAgent plugin with built-in, flexible caching
+* [superagent-jsonapify](https://github.com/alex94puchades/superagent-jsonapify) - A lightweight [json-api](http://jsonapi.org/format/) client addon for superagent
+* [superagent-serializer](https://github.com/zzarcon/superagent-serializer) - Converts server payload into different cases
+* [superagent-httpbackend](https://www.npmjs.com/package/superagent-httpbackend) - stub out requests using AngularJS' $httpBackend syntax
+* [superagent-throttle](https://github.com/leviwheatcroft/superagent-throttle) - queues and intelligently throttles requests
+* [superagent-charset](https://github.com/magicdawn/superagent-charset) - add charset support for node's SuperAgent
+* [superagent-verbose-errors](https://github.com/jcoreio/superagent-verbose-errors) - include response body in error messages for failed requests
+
+Please prefix your plugin with `superagent-*` so that it can easily be found by others.
+
+For SuperAgent extensions such as couchdb and oauth visit the [wiki](https://github.com/visionmedia/superagent/wiki).
+
+
+## Upgrading from previous versions
+
+Our breaking changes are mostly in rarely used functionality and from stricter error handling.
+
+* [4.x to 5.x](https://github.com/visionmedia/superagent/releases/tag/v5.0.0):
+  * Ensure you're running Node 8.8.1 or later.
+  * We've implemented the build setup of [Lass](https://lass.js.org) to simplify our stack and linting
+  * Browserified build size has been reduced from 48KB to 19KB (via `tinyify` and the latest version of Babel using `@babel/preset-env` and `.browserslistrc`)
+  * Linting support has been added using `caniuse-lite` and `eslint-plugin-compat`
+  * We can now target what versions of Node we wish to support more easily using `.babelrc`
+* [3.x to 4.x](https://github.com/visionmedia/superagent/releases/tag/v4.0.0-alpha.1):
+  * Ensure you're running Node 6 or later. We've dropped support for Node 4.
+  * We've started using ES6 and for compatibility with Internet Explorer you may need to use Babel.
+  * We suggest migrating from `.end()` callbacks to `.then()` or `await`.
+* [2.x to 3.x](https://github.com/visionmedia/superagent/releases/tag/v3.0.0):
+  * Ensure you're running Node 4 or later. We've dropped support for Node 0.x.
+  * Test code that calls `.send()` multiple times. Invalid calls to `.send()` will now throw instead of sending garbage.
+* [1.x to 2.x](https://github.com/visionmedia/superagent/releases/tag/v2.0.0):
+  * If you use `.parse()` in the _browser_ version, rename it to `.serialize()`.
+  * If you rely on `undefined` in query-string values being sent literally as the text "undefined", switch to checking for missing value instead. `?key=undefined` is now `?key` (without a value).
+  * If you use `.then()` in Internet Explorer, ensure that you have a polyfill that adds a global `Promise` object.
+* 0.x to 1.x:
+  * Instead of 1-argument callback `.end(function(res){})` use `.then(res => {})`.
+
+
+## Contributors
+
+| Name                |
+| ------------------- |
+| **Kornel Lesiński** |
+| **Peter Lyons**     |
+| **Hunter Loftis**   |
+| **Nick Baugh**      |
+
+
+## License
+
+[MIT](LICENSE) © TJ Holowaychuk
+
+
+## 
+
+[npm]: https://www.npmjs.com/
+
+[yarn]: https://yarnpkg.com/
+
+[formdata-polyfill]: https://www.npmjs.com/package/formdata-polyfill
+
+[jsdelivr]: https://www.jsdelivr.com/
+
+[unpkg]: https://unpkg.com/
+
+[browserify]: https://github.com/browserify/browserify
+
+[webpack]: https://github.com/webpack/webpack
+
+[rollup]: https://github.com/rollup/rollup