I was wondering if there's an option to create a Gatsby page with optional URL parameters of sort. Let's say that I've got listing of articles with an URL set to /articles/:articleID - this works really well, but the /articles page is just blank, without errors or anything and I'd like to create a handler page for that, maybe a 404 or a list of all articles, for example.
AFAIK Gatsby uses React-Router, so I changed my URLs to /articles/:articleID?, but it still doesn't work.
I'm creating all these pages with createPages API, like this:
    // ...
    createPage({
      path: page.url,
      matchPath: `${page.url}${pageParams}`, 
      component: path.resolve(`./src/templates/${page.template}.js`),
      context: {
        ...page.props,
      }
    });
where page is a simple object that contains data like url, template and stuff. 
pageParams is just a string that looks like this: /:articleID?.
Any tips on how to handle the page without any parameters? Because the template isn't loaded, but there is also no error for that page.