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test/imaps/node_modules/base64-stream/README.md

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+# Introduction
+
+While Node.js has built-in support for Base64 data, it does not come with the ability to encode / decode data in a stream.
+
+This library contains a streaming Base64 encoder and a streaming Base64 decoder for use with Node.js. These classes are written using the Node.js [stream interfaces](http://nodejs.org/api/stream.html) and are well covered with unit tests.
+
+# Usage
+
+## Installation
+
+To install base64-stream
+
+    npm install base64-stream
+    
+## Examples
+This example encodes an image and pipes it to stdout.
+
+```javascript
+var http = require('http');
+var {Base64Encode} = require('base64-stream');
+
+var img = 'http://farm3.staticflickr.com/2433/3973241798_86ddfa642b_o.jpg';
+http.get(img, function(res) {
+    if (res.statusCode === 200)
+        res.pipe(new Base64Encode()).pipe(process.stdout);
+});
+```
+
+This example takes in Base64 encoded data on stdin, decodes it, an pipes it to stdout.
+```javascript
+var {Base64Encode} = require('base64-stream');
+process.stdin.pipe(new Base64Encode()).pipe(process.stdout);
+```
+
+## options:
+
+`Base64Encode` can take an optional object `{lineLength: number, prefix: string}`  
+The prefix is useful for prepending for example `data:image/png;base64,` to make a base64 URL.  
+This example proxies an image url, and send the base64 string in response.
+
+```
+app.get('/i/*', function(req, res){ // using express for example
+	fetch(req.params[0]) // using node-fetch
+	.then(r=>r.body.pipe(new Base64Encode({prefix:`data:${r.headers.get('content-type')};base64,`})).pipe(res))
+	.catch(console.error);
+});
+```
+
+# Requirements
+
+This module currently requires Node 6.0.0 or higher.
+
+# Testing
+
+To run the unit tests
+
+    npm test
+
+# License
+MIT