blog-static-flake/build/katexserver.js

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const katex = require('katex');
const express = require('express');
const bodyParser = require('body-parser');
app = express();
app.use(bodyParser.json());
app.post('/render', (req, res) => {
res.send(req.body.equations.map(eq =>
katex.renderToString(eq.str, { throwOnError: false, displayMode: eq.display })));
});
app.listen(8000);