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