send/server/routes/exists.js

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const storage = require('../storage');
function validateID(route_id) {
return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
}
module.exports = async (req, res) => {
const id = req.params.id;
if (!validateID(id)) {
return res.sendStatus(404);
}
try {
await storage.exists(id);
res.sendStatus(200);
} catch (e) {
res.sendStatus(404);
}
};