Observability

Logger

Usage

import { App } from 'https://deno.land/x/toruk/mod.ts'
import { logger } from 'https://deno.land/x/toruk/middlewares/mod.ts'

new App({
  routes: [ /* ... */ ],
  use: [
    logger(),
  ]
}).serve()

Output

[GET]	/	200 OK	5ms
[POST]	/	200 OK	1ms
[DELETE]	/	200 OK	3ms
[GET]	/users	404 Not Found	0ms
[OPTIONS]	/users	404 Not Found	0ms
[DELETE]	/users/1	404 Not Found	0ms

Timing

The Server-Timing middleware provides performance metrics in the response headers.

🚧 WIP

This feature is under development.

Usage

import { App } from 'https://deno.land/x/toruk/mod.ts'
import { timing } from 'https://deno.land/x/toruk/middlewares/mod.ts'

new App({
  routes: [{
    path: '/',
    handler: ({ timing: { startTime, endTime, setMetric } }) => {

      // Start a timer
      startTime('db')
      const data = await db.findMany(/* ... */)
      endTime('db')

      // Set a custom metric
      setMetric('region', 'europe-west3')

      // Custom metrics measured in milliseconds
      setMetric('custom', 23.8, 'My custom Metric')

      return Response.json({ data })
    }
  }],
  use: [
    timing(),
  ]
}).serve()

Output

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