Log request details

Edgio Q&A
1

To debug my router, I’d like to console log all request details.

The example from:

https://docs.layer0.co/guides/debugging#section_cloud


  .get('/p/:productId', ({ cache }) => {
    proxy('origin', {
      // The presence of transformRequest and transformResponse ensure that proxying is done in serverless, not at the edge.
      transformRequest: (req) => {
        console.log('Request ID', req.headers['x-request-id'])
        // Log request properties that you want to troubleshoot.
      },
      transformResponse: (res, req) => {
        console.log('Response for request ID', req.headers['x-request-id'], 'status code', res.statusCode)
        // Log response properties that you want to troubleshoot.
      }
    })
  })

Looks powerful and close to what I need, but I’d like to avoid having to add the console.log to every route.

How can I log the request object without adding console.logs to every route?

2

If the different routes you want to log are similar in signature (eg proxying from the same origin), you can just define the handler as a function to reuse on the different routes:

const debugHandler = ({ proxy }) => {
    proxy('origin', {
      // The presence of transformRequest and transformResponse ensure that proxying is done in serverless, not at the edge.
      transformRequest: (req) => {
        console.log('Request ID', req.headers['x-request-id'])
        // Log request properties that you want to troubleshoot.
      },
      transformResponse: (res, req) => {
        console.log('Response for request ID', req.headers['x-request-id'], 'status code', res.statusCode)
        // Log response properties that you want to troubleshoot.
      }
    })
  }

...

.get('/p/:productId', debugHandler)
.get('/c/:categoryId', debugHandler)

This will run everything through serverless instead of at the edge so surcharges will accrue. I would advise only doing it on the individual route you wish to debug as a temporary measure.