Response AND/OR broadcast?

1

Hello All :wave:

I have a controller that evolved from just responding with turbo streams to now also broadcasting streams (so other page viewers can see changes)

I wonder what is considered the best way to respond now I have a controller that updates the UI in 2 ways :thinking:
Should I respond with only a status code and rely on the broadcast to handle the UI updates… or is there value in responding via turbostream as well as broadcasting?

thanks for any info you can provide :slight_smile:

sample controller to help illustrate what I am talkin about:

  class EntryController < ApplicationController
    def create
      result = AddNew.call(entry_params)
      if result.success?
        component_html = EntryComponent.new(entry: result.entry).render_in(view_context)

        # added line to broadcast here:
        Turbo::StreamsChannel.broadcast_append_to(:entries, target: result.form.entry_slot, html: html)

        # ..should I turbo_stream or just send as possitive status code?
        render turbo_stream: [
          turbo_stream.append(result.form.entry_slot, html: component_html)
        ]
      else
        render(:new, locals: {form: result.form})
      end
    end
  end
2

This is such a good question, I wish there was some guidance here.

1 Like
3

Personally, I would rely on the broadcast for the current user as well as others viewing the page, as doing a turbo-stream in addition to that would be redundant.

4

Apologies for bumping an old thread, but there really isn’t much info on the net about this.

Recently my approach has been to use “broadcasts” to update the pages.
Whilst making the controller action simply return a “turbo_stream” flash message that gets appended to the page.

With this approach, I can notify the user if the action was successful or not.