Add service for sticker popularity tracking and Flickr searches

.vscode/launch.json

@@ -66,6 +66,15 @@
             "localRoot": "${workspaceRoot}/sessionService",
             "remoteRoot": "/app/",
             "restart": true
+        },
+        {
+            "type": "node",
+            "request": "attach",
+            "name": "Attach (sticker service)",
+            "port": 5959,
+            "localRoot": "${workspaceRoot}/stickerService/",
+            "remoteRoot": "/app/",
+            "restart": true
         }
     ]
 }

stickerService/Dockerfile.dev

@@ -0,0 +1,5 @@
+FROM node:7.9.0-alpine
+RUN npm install -g nodemon
+WORKDIR /app
+ADD package.json .
+RUN npm install

stickerService/debug.env

@@ -0,0 +1,9 @@
+KAFKA_HOST=zookeeper:2181
+KAFKA_TOPIC=TrendingStickers
+MONGO_URL=mongodb://mongo:27017/getStickersDemo
+NODE_ENV=development
+PORT=2000
+REDIS_HOST=redis
+REDIS_PORT=6379
+REDIS_PASSWORD=
+REDIS_TLS=

stickerService/docker-compose.dev.yml

@@ -0,0 +1,49 @@
+version: '2'
+
+services:
+  mongo-stickers:
+    image: mongo:3.5.5
+    ports:
+    - 27017:27017
+
+  sticker-service:
+    depends_on:
+    - kafka
+    - mongo-stickers
+    - redis
+    build:
+      context: ${PROJECT_ROOT}/stickerService
+      dockerfile: Dockerfile.dev
+    container_name: sticker-service
+    env_file:
+    - debug.env
+    command: nodemon --debug=0.0.0.0:5959 --legacy-watch index.js
+    ports:
+    - 2000:2000
+    - 5959:5959
+    volumes:
+    - ${PROJECT_ROOT}/stickerService:/app:ro
+    - /app/node_modules
+
+  zookeeper:
+    image: wurstmeister/zookeeper
+    ports:
+    - 2181:2181
+
+  kafka:
+    depends_on:
+    - zookeeper
+    image: wurstmeister/kafka
+    ports:
+    - 9092:9092
+    environment:
+      KAFKA_ADVERTISED_HOST_NAME: kafka
+      KAFKA_CREATE_TOPICS: TrendingStickers:1:1
+      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
+    volumes:
+    - /var/run/docker.sock:/var/run/docker.sock
+
+  redis:
+    image: redis:3.2.8-alpine
+    ports:
+    - 6379:6379

stickerService/index.js

@@ -0,0 +1,43 @@
+'use strict';
+
+const express = require('express');
+const app = express();
+const server = require('http').createServer(app);
+const io = require('socket.io')(server);
+const itemPopularity = require('./itemPopularity');
+
+const search = require('./routes/search');
+const stickers = require('./routes/stickers');
+const top = require('./routes/top');
+
+if (app.get('env') === 'development') {
+    const db = require('./mongodb');
+    const path = require('path');
+    const test = require('./routes/test');
+
+    // give the db some time to get ready, then initialize it with some data
+    // TODO use the gulp task for this (in an init container perhaps)
+    setTimeout(() => db.initializeDatabaseAsync()
+        .then(console.log('db initialized with seed data')), 20000);
+
+    app.use(express.static(path.join(__dirname, 'test')));
+    app.use('/test', test);
+}
+
+app.use('/search', search);
+app.use('/stickers', stickers);
+app.use('/top', top);
+
+// websocket stuff: send the current top items to all new connections,
+// and update everyone when the top items change
+io.on('connection', function sendTrendingItems(socket) {
+    console.log(`new socket ${socket.id} connected from ${socket.client.conn.remoteAddress}`);
+    itemPopularity.topKAsync(5)
+        .then(top5 => socket.send(top5))
+        .catch(error => console.log(`sending top items failed: ${error}`));
+});
+itemPopularity.on('newTopItems', topItems => io.send(topItems));
+
+server.listen(process.env.PORT, () => {
+    console.log(`Sticker service listening on ${server.address().port}`);
+});

stickerService/initial-data.js

@@ -0,0 +1,170 @@
+module.exports = [
+
+    {
+        id: '1',
+        tags: [ 'Deployment' ],
+        name: 'Docker',
+        description: 'The Docker container-based platform deployment system',
+        author: 'Docker',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/docker.png'
+    }, {
+        id: '2',
+        tags: [ 'Service' ],
+        name: 'Trello',
+        description: 'The Trello project management service',
+        author: 'Trello',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/trello.png'
+    }, {
+        id: '3',
+        tags: [ 'Framework' ],
+        name: 'Ember',
+        description: 'The Ember JavaScript framework',
+        author: 'Ember',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/ember.png'
+    }, {
+        id: '4',
+        tags: [ 'Language' ],
+        name: 'Go',
+        description: 'The Go programming langauge',
+        author: 'Google',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/go.png'
+    }, {
+        id: '5',
+        tags: [ 'Language' ],
+        name: 'TypeScript',
+        description: 'The TypeScript programming langauge',
+        author: 'Microsoft',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/typescript.png'
+    }, {
+        id: '6',
+        tags: [ 'Tooling' ],
+        name: 'Git',
+        description: 'The Git version control system',
+        author: 'Git',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/git.png'
+    }, {
+        id: '7',
+        tags: [ 'Language' ],
+        name: 'Markdown',
+        description: 'The Markdown document language',
+        author: 'Markdown',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/markdown.png'
+    }, {
+        id: '8',
+        tags: [ 'Deployment' ],
+        name: 'Travis CI',
+        description: 'The Travis CI integration service',
+        author: 'Travis CI',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/travisci.png'
+    }, {
+        id: '9',
+        tags: [ 'Deployment' ],
+        name: 'Kubernetes',
+        description: 'The Kubernetes container deployment system',
+        author: 'Kubernetes',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/kubernetes.png'
+    }, {
+        id: '10',
+        tags: [ 'Protocol' ],
+        name: 'OAuth',
+        description: 'The OAuth authentication protocol',
+        author: 'OAuth',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/oauth.png'
+    }, {
+        id: '11',
+        tags: [ 'Service' ],
+        name: 'MailChimp',
+        description: 'MailChimp provides email marketing services',
+        author: 'MailChimp',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/mailchimp.png'
+    }, {
+        id: '12',
+        tags: [ 'Framework' ],
+        name: 'Bootstrap',
+        description: 'The Bootstrap CSS client framework',
+        author: 'Twitter',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/bootstrap.png'
+    }, {
+        id: '13',
+        tags: [ 'Language' ],
+        name: 'Rust',
+        description: 'The Rust programming langauge',
+        author: 'Mozilla',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/rust.png'
+    }, {
+        id: '14',
+        tags: [ 'Service' ],
+        name: 'Open Source Initiative',
+        description: 'The Open Source Initiative non-profit foundation',
+        author: 'OSI',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/osi.png'
+    }, {
+        id: '15',
+        tags: [ 'Language' ],
+        name: 'Ruby',
+        description: 'The Ruby programming langauge',
+        author: 'Ruby Community',
+        size: {
+            width: '2in',
+            height: '2in'
+        },
+        image: '/img/logo/ruby.png'
+    }
+
+];