Merge branch 'example'

examples/image-downloader/README.md

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+# image-downloader
+
+Download random `cat` image from https://giphy.com/ to 'out.gif'.
+
+## Usage
+
+```
+$ npm i
+$ npm start
+```

examples/image-downloader/index.js

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+var fs = require('fs');
+var Nightmare = require('nightmare');
+var download = require('download');
+
+// Search 'cat' images from GIPHY
+const urls = await Nightmare({ show: true, loadTimeout: 5000, executionTimeout: 5000 })
+  .goto('https://giphy.com/')
+  .type('#search-box', 'cat')
+  .click('#search-button')
+  .wait('#gif-results')
+  .evaluate(() => {
+    const images = Array.from(document.querySelectorAll('[data-gif] img'));
+    return images.map(i => i.src);
+  })
+  .end();
+
+// Pick one of the images
+const url = urls[Math.floor(Math.random() * urls.length)]
+
+// Convert GIF url
+const imageUrl = url.replace(/^.*\/(media\/\w*)\/.*$/, 'https://media.giphy.com/$1/giphy.gif');
+
+// Download image
+const image = await download(imageUrl);
+
+// Save image to out.gif
+fs.writeFileSync(`out.gif`, image);
+
+console.log('>> DONE!');

examples/image-downloader/package.json

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+{
+  "name": "image-downloader",
+  "version": "0.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "$(npm bin)/async-node index.js"
+  },
+  "keywords": [],
+  "author": "fand <fand@gmork.in>",
+  "license": "MIT",
+  "dependencies": {
+    "@fand/async-node": "^0.1.0",
+    "download": "^5.0.3",
+    "nightmare": "^2.10.0"
+  }
+}