making thunk work

[mustmodify]

Help us help you! Please choose one:

• My app crashes with react-rails, so I've included the stack trace and the exact steps which make it crash.
• My app doesn't crash, but I'm getting unexpected behavior. So, I've described the unexpected behavior and suggested a new behavior.
• I'm trying to use react-rails with another library, but I'm having trouble. I've described my JavaScript management setup (eg, Sprockets, Webpack...), how I'm trying to use this other library, and why it's not working.
• I have another issue to discuss.

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This doesn't EXACTLY fit under my other ticket (#813) about a discussion of the asset pipeline vs npm but you might find some inspriation here for that content.

Due to a ton of dependency issues, I'm currently stuck with Rails 3.2 and react-rails 0.13.0.0.

I want to add redux.

I tried looking for a gem that had it. No luck. Again, dependency issues. I have another rails app working with react-on-rails, but due to my current ruby version on this app, I guess that's a non-starter. So I need something that isn't gem-or-ruby dependent.

In a last-ditch effort to avoid more infrastructure on the server (node, etc) I am trying to include redux via a CDN:

=javascript_include_tag 'https://cdnjs.cloudflare.com/ajax/libs/redux/3.7.2/redux.min
.js'

but in my js files, which are included after that, I don't have access to applyMiddleware or createStore. In my react-on-rails app, I must import everything; but whenever I try that, I get:

Error: Parse Error: Line 1: Illegal import declaration

so, am I stuck? I guess I must use NPM? Why can't I use import? Why can't I get access to thunk? It should be available...

[BookOfGreg]

I assume you are using Sprockets.
What dependency is stopping you go from React-rails 0.13 to 2.4?

I'll try spin up a version of my example app with redux and see if I can get it going.

I just started a quick google along the lines of sprockets redux and came across this blogpost using Rails 3.2 + react-rails + redux so I'm hopeful I should be able to help you with this soon.

http://www.lampesberger.net/blog/2016/03/16/react-slash-redux-with-rails-3-dot-2-and-sprockets/

[BookOfGreg]

I only recently realised that recent versions of Sprockets actually load in node_modules, would it help you to yarn add redux and load it in your app.js?

[mustmodify]

So I now have react-rails 2.4.4 working... not sure why it wasn't that way in the Gemfile before.

So now it's:
rails: 3.2.13
react_rails 2.4.4
ruby: 2.2.9

According to the instructions, I should be able to:

$ bundle install
$ bundle exec rake webpacker:install
$ bundle exec rake webpacker:install:react
$ rails generate react:install

Turns out webpacker requires rails >= 4.2, so I'll have to configure webpacker myself or use react_on_rails, which is working for another Rails 3.2 app. What should I do? Manual or switch to react_on_rails?

[BookOfGreg]

http://guides.rubyonrails.org/maintenance_policy.html
Rails 3.x is now unsupported for even security fixes so I don't recommend anything that keeps you on that version. My preference would be upgrade to 4.2 and Webpacker. If React_on_rails supports Rails 3.2 then they aren't being very security minded.

react-rails as recently as v2.4.3 worked with Rails 3.2 on sprockets, you could use this with sprockets if you are locked back on other dependencies.
https://github.com/reactjs/react-rails#use-with-asset-pipeline

abfc1fc#diff-354f30a63fb0907d4ad57269548329e3L22

[alkesh26]

@mustmodify any updates from your side? Closing the issue now. Feel free to reopen this if you are still facing the problem.