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metrics.js
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metrics.js
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const client = require('prom-client');
const collectDefaultMetrics = client.collectDefaultMetrics;
const register = new client.Registry();
collectDefaultMetrics({ register });
const successfulWebhooksCounter = new client.Counter({
name: 'successful_webhooks',
help: 'Number of successful webhook calls',
labelNames: ['eventType'],
registers: [register],
});
const failedWebhooksCounter = new client.Counter({
name: 'failed_webhooks',
help: 'Number of failed webhook calls',
registers: [register],
});
function handleSuccessfulWebhook(eventType) {
successfulWebhooksCounter.inc({ eventType });
}
function handleFailedWebhook() {
failedWebhooksCounter.inc();
}
async function getMetrics() {
return await register.metrics();
}
module.exports = {
handleSuccessfulWebhook,
handleFailedWebhook,
getMetrics,
register,
};