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Change-Id: Iccb9a69a29ce96d618762c5c852c8ec43d9b78df
79 lines
2.5 KiB
JavaScript
79 lines
2.5 KiB
JavaScript
/* eslint-env node, es2020 */
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'use strict';
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const express = require('express');
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const client = require('prom-client');
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const app = express();
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app.use(express.json());
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// ---------------------------------------------------------------------------
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// Prometheus metrics
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// ---------------------------------------------------------------------------
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const register = new client.Registry();
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client.collectDefaultMetrics({ register });
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// ---------------------------------------------------------------------------
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// In-memory store
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// ---------------------------------------------------------------------------
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let nextId = 1;
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const store = new Map();
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// ---------------------------------------------------------------------------
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// Health
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// ---------------------------------------------------------------------------
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app.get('/health', (_req, res) => res.json({ status: 'UP' }));
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// ---------------------------------------------------------------------------
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// Metrics
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// ---------------------------------------------------------------------------
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app.get('/metrics', async (_req, res) => {
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res.set('Content-Type', register.contentType);
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res.end(await register.metrics());
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});
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// ---------------------------------------------------------------------------
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// Items CRUD
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// ---------------------------------------------------------------------------
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app.get('/api/items', (_req, res) => {
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res.json([...store.values()]);
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});
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app.post('/api/items', (req, res) => {
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const { name = 'unnamed', description = '' } = req.body ?? {};
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const item = { id: nextId++, name, description };
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store.set(item.id, item);
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res.status(201).json(item);
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});
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app.get('/api/items/:id', (req, res) => {
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const item = store.get(Number(req.params.id));
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if (!item) return res.status(404).json({ error: 'Not found' });
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res.json(item);
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});
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app.put('/api/items/:id', (req, res) => {
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const id = Number(req.params.id);
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const existing = store.get(id);
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if (!existing) return res.status(404).json({ error: 'Not found' });
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const updated = { ...existing, ...req.body, id };
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store.set(id, updated);
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res.json(updated);
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});
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app.delete('/api/items/:id', (req, res) => {
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const id = Number(req.params.id);
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store.delete(id);
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res.json({ deleted: id });
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});
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// ---------------------------------------------------------------------------
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// Start
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// ---------------------------------------------------------------------------
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const PORT = Number(process.env.PORT ?? 3000);
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app.listen(PORT, () => {
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console.log('test-micro-alex-stable-1 listening on :' + PORT);
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});
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module.exports = app; // for testing
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