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Update web.rb to allow external device access and update README #62

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10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -10,6 +10,16 @@ This is a simple [Sinatra](http://www.sinatrarb.com/) webapp that you can use to
ℹ️ You also need to obtain your Stripe **secret, test mode** API Key, available in the [Dashboard](https://dashboard.stripe.com/account/apikeys). Note that you must use your secret key, not your publishable key, to set up the backend. For more information on the differences between **secret** and publishable keys, see [API Keys](https://stripe.com/docs/keys). For more information on **test mode**, see [Test and live modes](https://stripe.com/docs/keys#test-live-modes).

## Running the app
If you are testing this application on a device other than `localhost` (such as a mobile phone or a Stripe card reader), you need to modify the Sinatra configuration to bind the server to all available IP addresses. By default, Sinatra only binds to `localhost`, which means that only your computer can access the app.

### Steps to Modify the Configuration:
1. Open the `web.rb` file in the project.
2. Add or modify the following line to bind the server to `0.0.0.0`, allowing external devices to connect:

```ruby
configure do
set :bind, '0.0.0.0' # Bind to all available network interfaces
end

### Running on Render

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3 changes: 2 additions & 1 deletion web.rb
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Expand Up @@ -8,7 +8,8 @@
# https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
# This enables the requires CORS headers to allow the browser to make the requests from the JS Example App.
configure do
enable :cross_origin
set :bind, '0.0.0.0' # Bind to all available network interfaces (important for testing with external devices)
enable :cross_origin # Already present in your code
end

before do
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