Custom or add more property to logger in logRequestCompleted

[lytaitruong]

I've looked at the library and found can't be edit or format custom log in events 'response' when logRequestCompleted: true
log when a request completed

I try to add more field in request.raw.res but in HAPI docs say "not recommend to do it"

request.logger.info(
        {
          payload: options.logPayload ? request.payload : undefined,
          queryParams: options.logQueryParams ? request.query : undefined,
          tags: options.logRouteTags ? request.route.settings.tags : undefined,
          // note: pino doesnt support unsetting a key, so this next line
          // has the effect of setting it or "leaving it as it was" if it was already added via child bindings
          req: shouldLogRequestStart(request) ? undefined : request,
          res: request.raw.res,
          responseTime: (info.completed !== undefined ? info.completed : info.responded) - info.received
          myCustomField: myValue
        },
        'request completed'
      )

Why I need it: When I using ELK to trace the issue, I need to add x-request-id to know the flow of the request so it makes me terrible. So if I can add more property like errorCode or errorMessage in the only request completed to trace easier

Thank for support.

[mcollina]

I'm not really a Hapi user anymore, can't really help.

[felixheck]

Hey @lytaitruong,
it might help to look at the source code of laabr — a wrapper around hapi-pino to make customizations to all kind of logs easier.