Roughing out the demo app

node_modules/lowdb/lib/common.js

@@ -0,0 +1,41 @@
+'use strict';
+
+var isPromise = require('is-promise');
+
+var init = function init(db, key, adapter) {
+  db.read = function () {
+    var r = adapter.read();
+
+    return isPromise(r) ? r.then(db.plant) : db.plant(r);
+  };
+
+  db.write = function () {
+    var value = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : db.getState();
+
+    var w = adapter.write(db.getState());
+
+    return isPromise(w) ? w.then(function () {
+      return value;
+    }) : value;
+  };
+
+  db.plant = function (state) {
+    db[key] = state;
+    return db;
+  };
+
+  db.getState = function () {
+    return db[key];
+  };
+
+  db.setState = function (state) {
+    db.plant(state);
+    return db;
+  };
+
+  return db.read();
+};
+
+module.exports = {
+  init
+};