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ExpressJS & Swig: changing route-based template variables?

I am developing an application using MEAN.js and I am trying to fix articles (blog) so that it becomes more social sharing friendly. The problem I ran into is filling in the metadata of the open graph so that it fills in the og: url value with the actual common URL. Here's what the files look like:

express.js

// Setting application local variables, to be rendered in the template variables in layout.server.view.html below.
app.locals.siteName = config.app.siteName;
app.locals.title = config.app.title;
app.locals.description = config.app.description;
app.locals.keywords = config.app.keywords;
app.locals.imageUrl = config.app.imageUrl;
app.locals.facebookAppId = config.facebook.clientID;
app.locals.jsFiles = config.getJavaScriptAssets();
app.locals.cssFiles = config.getCSSAssets();

// Passing the request url to environment locals
app.use(function(req, res, next) {

    // NOTE: This is the line that setting the url on the layout template.
    res.locals.url = req.protocol + '://' + req.headers.host + req.url;
    next();
});

layout.server.view.html

// This is the template being rendered, using Swig as the template engine.
// The variables (e.g. siteName, title, etc.) are being set using the app.locals and req.locals.url variables in the express.js file above.

<!-- Facebook META -->
<meta id="fb-app-id" property="fb:app_id" content="{{facebookAppId}}">
<meta id="fb-site-name" property="og:site_name" content="{{siteName}}">
<meta id="fb-title" property="og:title" content="{{title}}">
<meta id="fb-description" property="og:description" content="{{description}}">
<meta id="fb-url" property="og:url" content="{{url}}">
<meta id="fb-image" property="og:image" content="{{imageUrl}}">
<meta id="fb-type" property="og:type" content="website">

<!-- Twitter META -->
<meta id="twitter-title" name="twitter:title" content="{{title}}">
<meta id="twitter-description" name="twitter:description" content="{{description}}">
<meta id="twitter-url" name="twitter:url" content="{{url}}">
<meta id="twitter-image" name="twitter:image" content="{{imageUrl}}">

articles.server.controller.js

// Accessed only when a user visits one of the 'Articles' (blog) pages.
// When a user visits a url for an Article, this file grabs the article
// from the database and updates the local variables with article-specific
// values. This works for everything EXCEPT the url variable.

exports.articleByUrl = function(req, res, next, id) {
    var url = req.params.articleUrl;
    Article.findOne({urlTitle: url}).populate('user', 'displayName').exec(function(err, article) {
        if (err) return next(err);
        if (!article) return next(new Error('Failed to load article ' + id + ' with friendly URL "' + url + '".'));
        req.app.locals.title = article.title;
        req.app.locals.description = article.summary;

        // This is the line that I'm HOPING will update the url variable in
        // the template file above, but it not working. I've also tried
        // using req.app.locals.url, but that didn't work either.
        res.locals.url = req.protocol + '://' + req.get('host') + '/#!' + req.originalUrl;

        req.app.locals.imageUrl = article.img;
        req.article = article;
        next();
    });
};

Currently, all values ​​are filled in correctly. EXCLUDE the url value - it always shows the root url (i.e. http: // localhost: 3000 on my dev machine). Any help or more reasonable ways to do what I want would REALLY be appreciated. I spent 2 days on it, and my stubbornness is finally heard.

+4
1

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