Debugging

Debugging Auth.js starts with enabling the debug option in your main Auth.js configuration.

import NextAuth from "next-auth"
 
export const { handlers, auth } = NextAuth({
  debug: true,
})

This will use the console methods to log out many details about the authentication process, including requests, responses, errors, and database requests and responses.

Logging

You can customize the logging output by providing your own logger. This is useful if you want to send logs to a logging service, or if you want to customize the format of the logs.

import log from "logging-service"
export const { handlers, auth } = NextAuth({
  logger: {
    error(code, ...message) {
      log.error(code, message)
    },
    warn(code, ...message) {
      log.warn(code, message)
    },
    debug(code, ...message) {
      log.debug(code, message)
    },
  },
})

When logger options are set, the debug option is ignored