53 lines
1.2 KiB
JavaScript
53 lines
1.2 KiB
JavaScript
const express = require('express');
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const { Level } = require('level');
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const {
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createHash,
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} = require('node:crypto');
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require('dotenv').config();
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const app = express();
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const port = process.env.PORT || 3000;
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const dataDir = process.env.DATA_DIR || 'data';
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const db = new Level(`${dataDir}/forum`, { valueEncoding: 'json' });
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app.use(express.json());
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app.post('/write', async (req, res) => {
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const { body: data } = req;
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// TODO: Require author signature
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// Compute content hash
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const hash = createHash('sha256').update(JSON.stringify(data)).digest('base64url');
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console.log('write', hash);
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// Store content
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db.put(hash, data);
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// Return hash
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res.send(hash);
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});
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app.get('/read/:hash', async (req, res) => {
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// Fetch content
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const { hash } = req.params;
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let data;
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try {
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data = await db.get(req.params.hash);
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} catch (e) {
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console.log('read error:', e.message, hash);
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res.status(e.status).end();
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return;
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}
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console.log('read', hash);
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// Return content
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res.json(data);
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});
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app.get('*', (req, res) => {
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console.log(`req.path: ${req.path}`);
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res.send('Hello World!');
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});
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app.listen(port, () => {
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console.log(`Listening on port ${port}`);
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});
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