modularizing server and introduce cli example.

.jshintrc

@@ -0,0 +1,18 @@
+{
+  "bitwise": true,
+  "curly": true,
+  "eqeqeq": true,
+  "esnext": true,
+  "freeze": true,
+  "immed": true,
+  "indent": 2,
+  "latedef": "nofunc",
+  "newcap": true,
+  "node": true,
+  "noarg": true,
+  "quotmark": "single",
+  "strict": true,
+  "trailing": true,
+  "undef": true,
+  "unused": true
+}

README.md

@@ -1,88 +1,109 @@
-gcloud-node-todos
-=================
+# gcloud-node-todos
+>  [TodoMVC](http://todomvc.com) backend using [gcloud-node](//github.com/GoogleCloudPlatform/gcloud-node).
 
 [![Build Status](https://travis-ci.org/GoogleCloudPlatform/gcloud-node-todos.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/gcloud-node-todos)
 
-TodoMVC backend using [gcloud-node](//github.com/GoogleCloudPlatform/gcloud-node).
+## Examples
 
-# API
+- [Command Line](//github.com/GoogleCloudPlatform/gcloud-node-todos/cli)
 
-- Insert a todo
+Have an idea for a new implementation? Please [raise an issue](//github.com/GoogleCloudPlatform/gcloud-node-todos/issues/new).
 
-        curl -X POST -d '{text: "do this"}' http://localhost:8080/todos
+## API
 
-- Get a todo
+#### Insert a todo
+```sh
+$ curl -X POST -H "Content-Type: application/json" -d '{"text": "do this"}' http://localhost:8080/todos
+```
 
-        curl -X GET http://localhost:8080/todos/{{todo id}}
+#### Get a todo
+```sh
+$ curl -X GET http://localhost:8080/todos/{{todo id}}
+```
 
-- Mark a todo as done
+#### Mark a todo as done
+```sh
+$ curl -X PUT -H "Content-Type: application/json" -d '{"text": "do this", "done": true}' http://localhost:8080/todos/{{todo id}}
+```
 
-        curl -X PUT -d '{text: "do this", "done": true}' http://localhost:8080/todos/{{todo id}}
+#### Delete a todo
+```sh
+$ curl -X DELETE http://localhost:8080/todos/{{todo id}}
+```
 
-- Delete a todo
+#### Get all todos
+```sh
+$ curl -X GET http://localhost:8080/todos
+```
 
-        curl -X DELETE http://localhost:8080/todos/{{todo id}}
+#### Clear all `done` todos
+```sh
+$ curl -X DELETE http://localhost:8080/todos
+```
 
-- Get all todos
-
-        curl -X GET http://localhost:8080/todos
+## Prerequisites
 
-- Clear all `done` todos
+1. Create a new cloud project on [console.developers.google.com](http://console.developers.google.com)
+2. [Enable](https://console.developers.google.com/flows/enableapi?apiid=datastore) the [Google Cloud Datastore API](https://developers.google.com/datastore)
+3. Create a new service account and copy the JSON credentials to `key.json`
+4. Export your project id:
+    ```sh
+    $ export PROJECT_ID=<project id>
+    ```
 
-        curl -X DELETE http://localhost:8080/todos
+## Running
 
-# Prerequisites
+#### Locally
+```sh
+# Set your default Dataset
+$ export DATASET_ID=$PROJECT_ID
 
-  - Create a new cloud project on [console.developers.google.com](http://console.developers.google.com)
-  - [Enable](https://console.developers.google.com/flows/enableapi?apiid=datastore) the [Google Cloud Datastore API](https://developers.google.com/datastore)
-  - Create a new service account and copy the `JSON` credentials to `key.json`
-  - Export your project id
-
-        export PROJECT_ID=<project id>
+# Install the dependencies
+$ npm install
 
-# Run locally
+# Start the server
+$ npm start
 
-    # set your default dataset
-    export DATASET_ID=$PROJECT_ID
-    # fetch the dependencies
-    npm install
-    # start the app
-    npm start
-    # run acceptance test
-    dredd todos.apib http://localhost:8080 --hookfiles test_hooks.js
+# Run acceptance test
+$ npm test
+```
 
-# Run in docker
+#### [Docker](https://docker.com)
+```sh
+# Check that Docker is running
+$ boot2docker up
+$ export DOCKER_HOST=$(boot2docker shellinit)
 
-    # check that docker is running
-    boot2docker up
-    export DOCKER_HOST=$(boot2docker shellinit)
+# Build your Docker image
+$ docker build -t app .
 
-    # build your docker image
-    docker build -t app .
-    # start a new docker container
-    docker run -e DATASET_ID=$PROJECT_ID -p 8080:8080 app 
+# Start a new Docker container
+$ docker run -e DATASET_ID=$PROJECT_ID -p 8080:8080 app
 
-    # test the app
-    curl -X GET http://$(boot2docker ip):8080
+# Test the app
+$ curl -X GET http://$(boot2docker ip):8080
+```
 
-# Run w/ [Managed VMs](https://developers.google.com/appengine/docs/managed-vms/)
+#### [Managed VMs](https://developers.google.com/appengine/docs/managed-vms/)
+```sh
+# Get gcloud
+$ curl https://sdk.cloud.google.com | bash
 
-    # get gcloud
-    curl https://sdk.cloud.google.com | bash
-    # authorize gcloud and set your default project
-    gcloud auth login
-    gcloud config set project $PROJECT_ID
+# Authorize gcloud and set your default project
+$ gcloud auth login
+$ gcloud config set project $PROJECT_ID
 
-    # get managed vms component
-    gcloud components update app-engine-managed-vms
+# Get Managed VMs component
+$ gcloud components update app-engine-managed-vms
 
-    # check that docker is running
-    boot2docker up
+# Check that Docker is running
+$ boot2docker up
 
-    # run the app locally
-    gcloud preview app run .
-    curl -X GET http://localhost:8080
+# Run the app locally
+$ gcloud preview app run .
+$ curl -X GET http://localhost:8080
 
-    # deploy the app to production
-    gcloud preview app deploy .
-    curl -X GET http://$PROJECT_ID.appspot.com
+# Deploy the app to production
+$ gcloud preview app deploy .
+$ curl -X GET http://$PROJECT_ID.appspot.com
+```

cli/cli.js

@@ -0,0 +1,176 @@
+#! /usr/bin/env node
+
+//
+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+'use strict';
+
+var todos = require('../todos.js');
+
+var inquirer = require('inquirer');
+var actions = {
+  add: add,
+  deleteCompleted: deleteCompleted,
+  displayTodos: displayTodos,
+  displayTodosAndDelete: displayTodosAndDelete,
+  exit: process.kill
+};
+
+// Start the prompts.
+init();
+
+function init() {
+  inquirer.prompt([
+    {
+      message: 'What would you like to do?',
+      name: 'action',
+      type: 'list',
+      choices: [
+        {
+          name: 'List Todos',
+          value: 'displayTodos'
+        },
+        {
+          name: 'Add a Todo',
+          value: 'add'
+        },
+        {
+          name: 'Delete Todos',
+          value: 'displayTodosAndDelete'
+        },
+        {
+          name: 'Delete Completed Todos',
+          value: 'deleteCompleted'
+        },
+        new inquirer.Separator(),
+        {
+          name: 'Exit',
+          value: 'exit'
+        }
+      ]
+    }
+  ], function(answers) {
+    actions[answers.action](answers);
+  });
+}
+
+function add() {
+  inquirer.prompt({
+    message: 'What do you need to do?',
+    name: 'text'
+  }, function(answers) {
+    todos.insert({
+      text: answers.text
+    }, function(err) {
+      if (err) {
+        throw err;
+      }
+      init();
+    });
+  });
+}
+
+function displayTodos() {
+  todos.getAll(function(err, entities) {
+    if (err) {
+      throw err;
+    }
+    if (entities.length === 0) {
+      console.log('There are no todos!\n');
+      init();
+      return;
+    }
+    inquirer.prompt({
+      message: 'What have you completed?',
+      name: 'completed',
+      type: 'checkbox',
+      choices: entities.map(function(entity) {
+        return {
+          name: entity.text,
+          checked: entity.done,
+          value: entity
+        };
+      })
+    }, function(answers) {
+      // Update entities model.
+      entities = entities.map(function(entity) {
+        if (answers.completed.some(function(completed) {
+          return completed.id === entity.id;
+        })) {
+          entity.done = true;
+        } else {
+          entity.done = false;
+        }
+        return entity;
+      });
+
+      var updated = 0;
+      entities.forEach(function(entity) {
+        var id = entity.id;
+        delete entity.id;
+        todos.update(id, entity, function(err) {
+          if (err) {
+            throw err;
+          }
+          if (++updated === entities.length) {
+            init();
+          }
+        });
+      });
+    });
+  });
+}
+
+function displayTodosAndDelete() {
+  todos.getAll(function(err, entities) {
+    if (err) {
+      throw err;
+    }
+    inquirer.prompt({
+      message: 'What would you like to delete?',
+      name: 'completed',
+      type: 'checkbox',
+      choices: entities.map(function(entity) {
+        return {
+          name: entity.text,
+          checked: false,
+          value: entity
+        };
+      })
+    }, function(answers) {
+      var deleted = 0;
+      answers.completed.forEach(function(todo) {
+        todos.delete(todo.id, function(err) {
+          if (err) {
+            throw err;
+          }
+          if (++deleted === answers.completed.length) {
+            init();
+          }
+        });
+      });
+    });
+  });
+}
+
+function deleteCompleted() {
+  todos.deleteCompleted(function(err) {
+    if (err) {
+      throw err;
+    }
+    init();
+  });
+}