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config.action_cable.url in development is being overwritten somewhere #115

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tambakoo opened this issue Feb 12, 2020 · 5 comments
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config.action_cable.url in development is being overwritten somewhere #115

tambakoo opened this issue Feb 12, 2020 · 5 comments

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@tambakoo
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Environment
ruby 2.5.0p0
Rails 6.0.0.rc2
AnyCable v0.6.4
anycable-rails (0.6.5)
grpc (1.27.0)

I set up anycable using the official documentation but I kept getting a
ActionController::RoutingError (No route matches [GET] "/cable"):. The url being knocked on was ws://localhost:3000/cable while the anycable-go websocket server is running on port 3334.
I use webpacker on this app.
This routing error is only fixed when in the app/javascript/channels/consumer.js I use

import { createConsumer } from "@rails/actioncable"
export default createConsumer('ws://localhost:3334/cable')

that is, explicitly declare the url while creating the consumer.

It does not matter if I remove the config.action_cable_url from development.rb which is very weird. This is clearly a case of overwritten configuration.

This error was not resolved by #88 or #41.
Does this look like a webpacker problem ? Please tell me what files will be relevant to debug this.
@tambakoo tambakoo changed the title config.action_cable.url in development is being overwritten somewhere config.action_cable.url in development is being overwritten somewhere Feb 12, 2020
@palkan palkan mentioned this issue Feb 12, 2020
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@palkan
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palkan commented Feb 12, 2020

Hey!

Do you use the action_cable_meta_tag helper in your HTML? And if yes, is it called before the JS script is loaded?

Action Cable uses meta tags (set by action_cable_meta_tag) to get the value of config.action_cable.url (NOTE: it is action_cable.url not action_cable_url).

@tambakoo
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tambakoo commented Feb 12, 2020 •
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Hey!

Do you use the action_cable_meta_tag helper in your HTML? And if yes, is it called before the JS script is loaded?

Action Cable uses meta tags (set by action_cable_meta_tag) to get the value of config.action_cable.url (NOTE: it is action_cable.url not action_cable_url).

  1. This is how my application.html.erb looks like -
<!DOCTYPE html>
<html>
  <head>
    <title>CapApi</title>
    <%= action_cable_meta_tag %>
    <%= csrf_meta_tags %>
    <%= csp_meta_tag %>

    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
  </head>

  <body>
    <%= yield %>
  </body>
</html>
  1. My bad, I meant action_cable.url. It's written correctly on the code.

@palkan
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palkan commented Feb 12, 2020

Thanks!

And what do you see in the rendered HTML then? Does it contain the valid link (localhost:3334)?

@tambakoo
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Thanks!

And what do you see in the rendered HTML then? Does it contain the valid link (localhost:3334)?

yes there is a <meta name="action-cable-url" content="ws://localhost:3334/cable"> on the rendered HTML.

@palkan
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palkan commented Feb 13, 2020

The only suggestion is to debug the JS createConsumer function and see where it gets the URL from if it’s not provided. It should be from the meta tag 🤷🏻‍♂️

@palkan palkan mentioned this issue Apr 27, 2020
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@kerbong kerbong mentioned this issue Jul 19, 2021
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@palkan @tambakoo