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* feat: add metrics * chore: move metrics from the wrong folder * chore: disable powered by express header * chore: add custom metrics
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| import init, { client } from '@snapshot-labs/snapshot-metrics'; | ||
| import { Express } from 'express'; | ||
| import db from './mysql'; | ||
|
|
||
| export default function initMetrics(app: Express) { | ||
| init(app, { | ||
| normalizedPath: [['^/api/messages/.+', '/api/messages/#hash']], | ||
| whitelistedPath: [/^\/$/, /^\/api$/, /^\/api\/msg$/, /^\/api\/messages\/.+$/] | ||
| }); | ||
| } | ||
|
|
||
| new client.Gauge({ | ||
| name: 'messages_per_network_count', | ||
| help: 'Total number of messages per network', | ||
| labelNames: ['network'], | ||
| async collect() { | ||
| const results = await db.queryAsync( | ||
| 'SELECT COUNT(*) as count, network FROM messages GROUP BY network' | ||
| ); | ||
|
|
||
| results.forEach(result => { | ||
| this.set({ network: result.network }, result.count); | ||
| }); | ||
| } | ||
| }); | ||
|
|
||
| export const timeMessageProcess = new client.Histogram({ | ||
| name: 'message_process_duration_seconds', | ||
| help: 'Duration in seconds of each batch messages process', | ||
| labelNames: ['network'] | ||
| }); |
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