如何在Rails中将环境变量嵌入到.coffee文件中？

Question

我看到了这个问题，但没有奏效：How to access environment variable from rails on your javascript?

我有这样的代码

subscriptions.coffee.erb

$ -> 
    # Create a Stripe client 
    stripe = Stripe("<% ENV['STRIPE_PUBLIC'] %>") 

而且我有这样的环境中设置

C:\Users\Chloe\workspace\>echo %STRIPE_PUBLIC% 
pk_test_7aMtxxxxxxxxxxxxx4p3M 

C:\Users\Chloe\workspace\>rails server --bind 0.0.0.0 
=> Booting Puma 

然而，它是产生此JS：

http://localhost:3000/assets/subscriptions.self-dfceb50c7f2eec8201fd3f59a7660a6763333b1e27f564e812f93c8ce9019188.js?body=1 

(function() { 
    $(function() { 
    var card, elements, form, stripe, stripeTokenHandler, style; 
    stripe = Stripe(""); 

Answer 1

没有人对我有任何答案，我不能等待一整天，所以我做了一个不同的方式。

_form.haml

=javascript_include_tag 'https://js.stripe.com/v3/' 
:javascript 
    window.stripe_public = "#{ENV['STRIPE_PUBLIC']}"; 

subscriptions.coffee

$ -> 
    # Create a Stripe client 
    stripe = Stripe(window.stripe_public) 

产量

view-source:http://localhost:3000/users/1/subscriptions/new

<script src="https://js.stripe.com/v3/"></script> 
    <script> 
    window.stripe_public = "pk_test_7xxxxxxxxxxxx4p3M"; 
    </script> 

http://localhost:3000/assets/subscriptions.self-dfceb50c7f2eec8201fd3f59a7660a6763333b1e27f564e812f93c8ce9019188.js?body=1

(function() { 
    $(function() { 
    var card, elements, form, stripe, stripeTokenHandler, style; 
    stripe = Stripe(window.stripe_public); 

Answer 2

的In y我们的模板，您错过了=实际呈现ERB表达式的输出。以下应该工作：

stripe = Stripe("<%= ENV['STRIPE_PUBLIC'] %>") 

请参阅the docs了解更多。