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Set /block API cache duration according to block age

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nymkappa 2022-07-11 09:53:32 +02:00
parent b8b50b552e
commit a4641b8480
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1 changed files with 13 additions and 1 deletions
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14
backend/src/routes.ts
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@ -761,7 +761,19 @@ class Routes {
public async getBlock(req: Request, res: Response) { public async getBlock(req: Request, res: Response) {
try { try {
const block = await blocks.$getBlock(req.params.hash); const block = await blocks.$getBlock(req.params.hash);
res.setHeader('Expires', new Date(Date.now() + 1000 * 600).toUTCString());
const blockAge = new Date().getTime() / 1000 - block.timestamp;
const day = 24 * 3600;
let cacheDuration;
if (blockAge > 365 * day) {
cacheDuration = 30 * day;
} else if (blockAge > 30 * day) {
cacheDuration = 10 * day;
} else {
cacheDuration = 600
}
res.setHeader('Expires', new Date(Date.now() + 1000 * cacheDuration).toUTCString());
res.json(block); res.json(block);
} catch (e) { } catch (e) {
res.status(500).send(e instanceof Error ? e.message : e); res.status(500).send(e instanceof Error ? e.message : e);