Rails: Turn Off Error Display

Rails: Turn off error display

Try this:

• run a server in production $ rails s -e production

• remove ActionDispatch::DebugExceptions middleware

  config.middleware.delete(ActionDispatch::DebugExceptions)

• set config.consider_all_requests_local = false in your environment config

How to turn off the red/grey error help page tool in rails development environment?

Try to the following

# config/environments/development.rb
config.consider_all_requests_local = false

By default, this value is true because of the need to debug code on development environment that's why, if you change value with false then will show the error page which is designed default.

If you need to generate and design custom then the follow this tutorial.

Hope to help

Rails: hide errors errors in production environment

Make sure the following setting is set to false in your config/environment/production.rb file:

config.consider_all_requests_local = false

How to enable error reporting when running a rails app in production mode?

If you add this to your config/environments/production.rb:

config.consider_all_requests_local = true

You will see the same errors as in development, but it will also disable the caching for the production app etc.

I would rather suggest you look into /log/production.log . The same errors are posted there as are normally shown on screen.

Disable stack trace display in Rails console

The important thing is that rails console use irb, and has access to the range of irb config options

$ rails c
Loading development environment (Rails 4.2.0)
>> conf
=> conf.ap_name="irb"
conf.auto_indent_mode=false
conf.back_trace_limit=16
.
.
.

And there it is: conf.back_trace_limit. So:

conf.back_trace_limit = 0

will effectively disable the backtrace for the current session, and output will be nice and concise:

>> MyModel.gnu
NoMethodError: undefined method `gnu' for MyModel:Class

or

>> obj.do_defective_math
ZeroDivisionError: divided by 0

To make things a bit more convenient, a function can be defined in ~/.irbrc. Something like:

def toggle_trace
  if conf.back_trace_limit > 0
    conf.back_trace_limit = 0
  else
    conf.back_trace_limit = IRB.conf[:BACK_TRACE_LIMIT]
  end
end

which can be called a console session to disable or enable the back trace as needed

Disable all html exception rendering in rails

What you want is exceptions_app.

Rails exceptions_app is basically a configuration option for rails which defaults to the middleware PublicExceptions in ActionDispatch.

This is pretty much what exceptions_app defaults to if none provided:

PublicExceptions

This is the public_exceptions middleware that handles displaying the public 500.html and 400.html

https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/middleware/public_exceptions.rb

Show Exceptions

This is part of the middleware that shows exceptions on development/production

https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/middleware/show_exceptions.rb#L26

Defaults

Here's what it defaults to when you initialize an application

https://github.com/rails/rails/blob/master/railties/lib/rails/application.rb#L391-L393

You can exchange it for an app or route it to your own rails apps like this:

config/application.rb

config.exceptions_app = self.routes

Then in your routes you would match routes like this

routes.rb

match "/500" => "errors#exception"
match "/404" => "errors#not_found"

So you would then have a ErrorsController that would have these actions and handle the response to them.

errors_controller.rb

class ErrorsController < ApiController

  def exception
    render json: {error: "Internal Error"}, status: 500
  end

  def not_found
    render json: {error: "Not Found"}, status: 404
  end
end

Rails - error in production mode

In config/environments/production.rb

temporally change

  config.consider_all_requests_local       = false

to

  config.consider_all_requests_local       = true

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