initial load

2018-01-10 16:31:49 +00:00
commit ae1a16f94c
33 changed files with 1647 additions and 0 deletions
--- a/catalogue/server.js
+++ b/catalogue/server.js
@@ -0,0 +1,146 @@
+const instana = require('instana-nodejs-sensor');
+const mongoClient = require('mongodb').MongoClient;
+const mongoObjectID = require('mongodb').ObjectID;
+const bodyParser = require('body-parser');
+const express = require('express');
+
+// MongoDB
+var db;
+var collection;
+var mongoConnected = false;
+
+// init tracing
+instana({
+    tracing: {
+        enabled: true
+    }
+});
+
+
+const app = express();
+
+app.use((req, res, next) => {
+    res.set('Timing-Allow-Origin', '*');
+    res.set('Access-Control-Allow-Origin', '*');
+    next();
+});
+
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.json());
+
+app.get('/health', (req, res) => {
+    var stat = {
+        app: 'OK',
+        mongo: mongoConnected
+    };
+    res.json(stat);
+});
+
+// all products
+app.get('/products', (req, res) => {
+    if(mongoConnected) {
+        collection.find({}).toArray().then((products) => {
+            res.json(products);
+        }).catch((e) => {
+            console.log('ERROR', e);
+            res.status(500).send(e);
+        });
+    } else {
+        res.status(500).send('database not avaiable');
+    }
+});
+
+// product by SKU
+app.get('/product/:sku', (req, res) => {
+    if(mongoConnected) {
+        collection.findOne({sku: req.params.sku}).then((product) => {
+            console.log('product', product);
+            if(product) {
+                res.json(product);
+            } else {
+                res.status(404).send('SKU not found');
+            }
+        }).catch((e) => {
+            console.log('ERROR', e);
+            res.status(500).send(e);
+        });
+    } else {
+        res.status(500).send('database not available');
+    }
+});
+
+// products in a category
+app.get('/products/:cat', (req, res) => {
+    if(mongoConnected) {
+        collection.find({ categories: req.params.cat}).toArray().then((products) => {
+            res.json(products);
+        }).catch((e) => {
+            console.log('ERROR', e);
+            res.status(500).send(e);
+        });
+    } else {
+        res.status(500).send('database not avaiable');
+    }
+});
+
+// all categories
+app.get('/categories', (req, res) => {
+    if(mongoConnected) {
+        collection.distinct('categories').then((categories) => {
+            res.json(categories);
+        }).catch((e) => {
+            console.log('ERROR', e);
+            res.status(500).send(e);
+        });
+    } else {
+        res.status(500).send('database not available');
+    }
+});
+
+// search name and description
+app.get('/search/:text', (req, res) => {
+    if(mongoConnected) {
+        collection.find({ '$text': { '$search': req.params.text }}).toArray().then((hits) => {
+            res.json(hits);
+        }).catch((e) => {
+            console.log('ERROR', e);
+            res.status(500).send(e);
+        });
+    } else {
+        res.status(500).send('database not available');
+    }
+});
+
+// set up Mongo
+function mongoConnect() {
+    return new Promise((resolve, reject) => {
+    var mongoURL = process.env.MONGO_URL || 'mongodb://mongodb:27017/catalogue';
+    mongoClient.connect(mongoURL, (error, _db) => {
+        if(error) {
+            reject(error);
+        } else {
+            db = _db;
+            collection = db.collection('products');
+            resolve('connected');
+        }
+    });
+});
+}
+
+function mongoLoop() {
+    mongoConnect().then((r) => {
+        mongoConnected = true;
+        console.log('MongoDB connected');
+    }).catch((e) => {
+        console.error('ERROR', e);
+        setTimeout(mongoLoop, 2000);
+    });
+}
+
+mongoLoop();
+
+// fire it up!
+const port = process.env.CATALOGUE_SERVER_PORT || '8080';
+app.listen(port, () => {
+    console.log('Started on port', port);
+});