🔧 Basic configuration files for sqlite/express app

express_defaults/city_stats_min/README.md

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+This directory contains a very basic set up for sqlite, express, and express
+router.

express_defaults/city_stats_min/db/sqlite.js

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+'use strict'
+// Database Configuration and Initialization
+const sqlite3 = require('sqlite3').verbose()
+const sdb = require('./states.json')
+const cdb = require('./cities.json')
+const { createStmts, insertStmts } = require('../utils/sql.js')
+
+const db = new sqlite3.Database(
+    './db/metro_stats.db',
+    sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE,
+    err => {
+        if (err) return console.error(err.message)
+        console.log('connected to in-memory sqlite database.')
+    },
+)
+
+db.serialize(() => {
+    createStmts.forEach(stmt => db.run(stmt))
+    insertStmts.populateStates(sdb, db)
+    insertStmts.populateCities(cdb, db)
+})
+
+module.exports = db

express_defaults/city_stats_min/logs/citystats.conf

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+/var/log/citystats/log.json {
+	size 100K
+	rotate 5 
+	delaycompress
+	compress
+	notifempty
+	maxsize 100K
+}

express_defaults/city_stats_min/package.json

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+{
+  "name": "city_stats_min",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "/usr/bin/touch ./db/metro_stats ; /usr/bin/rm ./db/metro_stats.db ; nodemon ./server/index.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cors": "^2.8.5",
+    "dotenv": "^16.0.3",
+    "express": "^4.18.2",
+    "nodemon": "^2.0.22",
+    "pino": "^8.11.0",
+    "pino-http": "^8.3.3",
+    "sqlite3": "^5.1.6"
+  }
+}

express_defaults/city_stats_min/routes/index.js

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+'use strict'
+const router = require('express').Router()
+const { routes } = require('../routes/routes.js')
+const { handle404Error } = require('../utils/utils.js')
+
+router.get('/:table?/:query?/:field?/:index?/:subindex?', (req, res) => {
+    routes.mainRouter(req, res)
+})
+
+router.get('*', ([], res) => handle404Error(res))
+
+module.exports = router

express_defaults/city_stats_min/server/app.js

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+'use strict'
+// Server Configuration
+const app = require('express')()
+// const json = require('express').json
+// const cors = require('cors')
+// const bodyParser = require('body-parser')
+const router = require('../routes/')
+
+// Logger configuration
+const pino = require('pino')
+const logger = require('pino-http')({
+    logger: pino(pino.destination('/var/log/citystats/log.json')),
+})
+
+// App configuration
+const port = process.env.PORT || 5000
+// app.use(
+    // cors({
+        // origin: '*',
+        // methods: 'GET',
+        // credentials: true,
+    // }),
+// )
+// app.use(bodyParser.urlencoded({ extended: false }))
+// app.use(json())
+app.use(logger)
+
+// Main routes
+app.use('/', router)
+
+// Initialize Server...
+const server = app.listen(port, () =>
+    console.log(`serving sqlite database as JSON on port: ${port}`))
+
+module.exports = server

express_defaults/city_stats_min/server/index.js

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+'use strict'
+// Server Connection
+const server = require('./app.js')
+
+let connections = []
+server.on('connection', connection => {
+    connections.push(connection)
+    connection.on('close', () => 
+        (connections = connections.filter(curr => 
+            curr !== connection)),
+    )
+})
+
+const shutDown = () => {
+    server.close(() => {
+        console.log('closing server with exit code 0...')
+        process.exit(0)
+    })
+    setTimeout(() => {
+        console.error('failure to close server properly...')
+        console.error('exit code 1...')
+        process.exit(1)
+    }, 10000)
+    connections.forEach(curr => curr.end())
+    setTimeout(() => 
+        connections.forEach(curr => 
+            curr.destroy()), 5000)
+}
+
+process.on('SIGTERM', shutDown)
+process.on('SIGINT', shutDown)