machankura/mempool
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Add logging & syslog support to unfurler

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This commit is contained in:
Mononaut
2022-09-15 18:35:37 +00:00
parent 2cd7e8d870
commit 95362ec19b
6 changed files with 216 additions and 13 deletions
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18
unfurler/src/index.ts
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@@ -7,6 +7,7 @@ import { Cluster } from 'puppeteer-cluster';
import ReusablePage from './concurrency/ReusablePage';
import { parseLanguageUrl } from './language/lang';
import { matchRoute } from './routes';
import logger from './logger';
const puppeteerConfig = require('../puppeteer.config.json');
if (config.PUPPETEER.EXEC_PATH) {
@@ -55,7 +56,7 @@ class Server {
this.server = http.createServer(this.app);
this.server.listen(config.SERVER.HTTP_PORT, () => {
console.log(`Mempool Unfurl Server is running on port ${config.SERVER.HTTP_PORT}`);
logger.info(`Mempool Unfurl Server is running on port ${config.SERVER.HTTP_PORT}`);
});
}
@@ -102,20 +103,23 @@ class Server {
// wait for preview component to initialize
await page.waitForSelector('meta[property="og:preview:loading"]', { timeout: config.PUPPETEER.RENDER_TIMEOUT || 3000 })
let success = false;
let success;
success = await Promise.race([
page.waitForSelector('meta[property="og:preview:ready"]', { timeout: config.PUPPETEER.RENDER_TIMEOUT || 3000 }).then(() => true),
page.waitForSelector('meta[property="og:preview:fail"]', { timeout: config.PUPPETEER.RENDER_TIMEOUT || 3000 }).then(() => false)
])
if (success) {
if (success === true) {
const screenshot = await page.screenshot();
return screenshot;
} else if (success === false) {
logger.warn(`failed to render page preview for ${action} due to client-side error, e.g. requested an invalid txid`);
page.repairRequested = true;
} else {
console.log(`failed to render page preview for ${action} due to client-side error. probably requested an invalid ID`);
logger.warn(`failed to render page preview for ${action} due to puppeteer timeout`);
page.repairRequested = true;
}
} catch (e) {
console.log(`failed to render page for ${action}`, e instanceof Error ? e.message : e);
logger.err(`failed to render page for ${action}` + (e instanceof Error ? e.message : `${e}`));
page.repairRequested = true;
}
}
@@ -150,7 +154,7 @@ class Server {
res.send(img);
}
} catch (e) {
console.log(e);
logger.err(e instanceof Error ? e.message : `${e}`);
res.status(500).send(e instanceof Error ? e.message : e);
}
}
@@ -202,7 +206,7 @@ class Server {
const server = new Server();
process.on('SIGTERM', async () => {
console.info('Shutting down Mempool Unfurl Server');
logger.info('Shutting down Mempool Unfurl Server');
await server.stopServer();
process.exit(0);
});