How to store in localStorage in Javascript from Ruby variable

Question

I try to store a token in my localstorage from a ruby variable, As I understood, you can only set LocalStorage with Javascript, So here is my question, how can I pass my variable from Ruby to Javascript ? I saw some answers with script tag in the view, but is there any solution to do it directly in the app.js folder ?

So here is my Controller :

 @token = HTTParty.post('https://test.pro/2.0/auth/token/access', 
      body: {
          client_id: XXX,
          client_secret: "YYYYYYYYYYYYYY",
          code: LLLLLL
      }
  )

And in my view if I do a <%= @token %>, I have the following result :

{"access_token": "1VwCAjhsfCsdEoBoQs1G9kLHKoWOcJjamyj1s8_NQPrHeGNagzYYFrXKp_VlY", "token_type": "Bearer"}

Thanks for your help !

Mark · Accepted Answer · 2019-12-05 13:38:05Z

2

If you want to perform javascript from within a ruby file you can use a javascript_tag:

https://apidock.com/rails/ActionView/Helpers/JavaScriptHelper/javascript_tag

An example of how to use it:

Accessing Ruby objects in javascript

In your case, something in your view like:

<% javascript_tag do %>
   localStorage.setItem('accessToken', <%= @token["access_token"] %>);
   localStorage.setItem('tokenType', <%= @token["access_token"] %>);
<% end %>

Should do the trick

answered Dec 5, 2019 at 13:38

Mark

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