done purchases remove, ocr scan, read image

express-server/node_modules/streamifier/lib/index.js

@@ -0,0 +1,28 @@
+'use strict';
+
+var util = require('util');
+var stream = require('stream');
+
+module.exports.createReadStream = function (object, options) {
+  return new MultiStream (object, options);
+};
+
+var MultiStream = function (object, options) {
+  if (object instanceof Buffer || typeof object === 'string') {
+    options = options || {};
+    stream.Readable.call(this, {
+      highWaterMark: options.highWaterMark,
+      encoding: options.encoding
+    });
+  } else {
+    stream.Readable.call(this, { objectMode: true });
+  }
+  this._object = object;
+};
+
+util.inherits(MultiStream, stream.Readable);
+
+MultiStream.prototype._read = function () {
+  this.push(this._object);
+  this._object = null;
+};