Working with [dashing.io](http://dashing.io) to make some awesome dashboards. I understand that dashing was build with ruby and sinatra and uses .erb files in a specific directory to make dashboards.

I have no issues setting up dashing or getting info into my dashboards with the .erb jobs.

What I'm trying to do is use a variable passed from the uri string in one of my dashboard .erb files. The dashboard directory also has a layout.erb file that looks like the template and this is what I'm trying to put:

```
<% group = params["apps"] %>

```

However this gives me an error in sinatra. Ideally I'd like to add a uri parameter to change the dashboard. So I'd like to hit my instance of dashing running at `sample.com:3030/mydashboard` add a uri parameter `sample.com:3030/mydashboard?apps=group1`

```
<li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
    <div data-id="<% group %>" data-view="List" </div>
</li>

```

and use that to dynamically create my erb file as such:

```
<li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
    <div data-id="group1" data-view="List" </div>
</li>

```

I started looking at erb layouts on sinatras docs but with so many different technologies meshed together here, I'm not sure the order of how the page is built and at what point or file I would need to make these changes.

**UPDATE:**

I thought I was making some progress, I forked the gem and altered this line in the app.rb file:

```
get '/:dashboard/' do

```

to

```
get '/:dashboard/group/' do

```

which allows me to use this in my dashboards to get the url parameter `<%= params[:group] %>` but this seems to break the dashboards. Gridster still shows the widget boxes but no data. This seems to be breaking the `view/[widget].html` from being resolvable, as I'm getting a resource not found.