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https://stackoverflow.com/questions/15463199/how-to-set-custom-favicon-in-express



I recently started working in Node.js and in the app.js file there is this line:

app.use(express.favicon());

Now, how do I set up my own custom favicon.ico?

    up vote188down voteaccepted

    In Express 4

    Install the favicon middleware and then do:

    var favicon = require('serve-favicon');
    
    app.use(favicon(__dirname + '/public/images/favicon.ico'));

    Or better, using the path module:

    app.use(favicon(path.join(__dirname,'public','images','favicon.ico')));

    (note that this solution will work in express 3 apps as well)

    In Express 3

    According to the API, .favicon accepts a location parameter:

    app.use(express.favicon("public/images/favicon.ico")); 

    Most of the time, you might want this (as vsync suggested):

    app.use(express.favicon(__dirname + '/public/images/favicon.ico'));

    Or better yet, use the path module (as Druska suggested):

    app.use(express.favicon(path.join(__dirname, 'public','images','favicon.ico'))); 

      No extra middlewares required. Just use:

      app.use('/favicon.ico', express.static('images/favicon.ico'));

      smiley favicon to prevent error:

       //const fs = require('fs'); 
       //const favicon = fs.readFileSync(__dirname+'/public/favicon.ico'); // read file
       const favicon = new Buffer('AAABAAEAEBAQAAAAAAAoAQAAFgAAACgAAAAQAAAAIAAAAAEABAAAAAAAgAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAA/4QAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEREQAAAAAAEAAAEAAAAAEAAAABAAAAEAAAAAAQAAAQAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAEAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD//wAA//8AAP//AAD8HwAA++8AAPf3AADv+wAA7/sAAP//AAD//wAA+98AAP//AAD//wAA//8AAP//AAD//wAA', 'base64'); 
       app.get("/favicon.ico", function(req, res) {
        res.statusCode = 200;
        res.setHeader('Content-Length', favicon.length);
        res.setHeader('Content-Type', 'image/x-icon');
        res.setHeader("Cache-Control", "public, max-age=2592000");                // expiers after a month
        res.setHeader("Expires", new Date(Date.now() + 2592000000).toUTCString());
        res.end(favicon);
       });

      to change icon in code above

      make an icon maybe here: http://www.favicon.cc/ or here :http://favicon-generator.org

      convert it to base64 maybe here: http://base64converter.com/

      then replace the icon base 64 value

      general information how to create a personalized fav icon

      icons are made using photoshop or inkscape, maybe inkscape then photoshop for vibrance and color correction (in image->adjustments menu).

      for quick icon goto http://www.clker.com/ and pick some Vector Clip Arts, and download as svg. then bring it to inkscape (https://inkscape.org/) and change colors or delete parts, maybe add something from another vector clipart image, then to export select the parts to export and click file>export, pick size like 16x16 for favicon or 32x32. for further edit 128x128 or 256x256. ico package can have several icon sizes inside. it can have along with 16x16 pixel favicon a high quality icons for link for the website.

      then maybe enhance the image in photoshop. like vibrance, bevel effect, round mask, anything.

      then upload this image to one of the websites that generate favicons. there are also programs for windows for editing icons like https://sourceforge.net/projects/variicons/ .

      to add the favicon to website. just put the favicon.ico as a file in the root folder of the domain. for example in node.js in public folder that contains the static files. it doesn't have to be anything special like code above just a simple file.

        app.use(express.favicon(__dirname + '/public/images/favicon.ico')); 

        I had it working locally without the __dirname + but couldn't get it working on my deployed server.

          If you are using Express > 4.0, you could go for serve-favicon

            No need for custom middleware?! In express:

             //you probably have something like this already    
            app.use("/public", express.static('public')); 

            Then put your favicon in public and add the following line in your html's head:

            <link rel="icon" href="/public/favicon.ico">

            If you have you static path set, then just use the <link rel="icon" href="/images/favicon.ico" type="image/x-icon"> in your views. No need for anything else. Please make sure that you have your images folder inside the public folder.

            Install modules serve-favicon and path from npm, update index.js accordingly.

            //import packages
            var favicon = require('serve-favicon'), path = require("path");
            //use favicon icon path to access in application.
            app.use(favicon(path.join(__dirname+'/favicon.ico')));

            The code listed below works:

            var favicon = require('serve-favicon');
            
            app.use(favicon(__dirname + '/public/images/favicon.ico'));

            Just make sure to refresh your browser or clear your cache.

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