Simple express function to expose the contents of a package.json file to the view engine. This is useful for displaying the software version on a web page without having to update the page every time the version changes in package.json.

npm install --save express-package-json

Parameters:

• pathToPackageJson - path to the package.json file. String. Defaults to ./package.json.
• propertyName - name of property to add to res.locals. String. Defaults to pkg.

Returns:

• express middleware function:
  • middleware function accepts (req, res, next).
  • res.locals[variableName] is set to a JavaScript object containing the parsed package.json.
  • next() is called when complete.

app.js:

"use strict";

var express = require('express');
var expressPackageJson = require('express-package-json');

var app = express();

app.set('view engine', 'hbs');    

app.use(expressPackageJson(path.join(__dirname, 'package.json')));

app.get('/', function (req, res) {
    res.render('index');
});

views/index.hbs:

{{pkg.name}} v{{pkg.version}}

npm test

See LICENSE.md