Demo for cross browsers push notifications with server side code
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App_data/jobs/triggered/notify
db
src
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README.md
configured-web-push.js
gulpfile.js
iisnode.yml
index.js
package-lock.json
package.json
web.config

README.md

Web Push Notifications Tutorial

This is a tutorial and demo for web push notifications that work in modern web browsers.

How to use

First, install all Node.js dependencies via npm install.

Note: You will need the necessary tools to compile binaries for node. If you are on a Windows platform the easiest way is to use the windows-build-tools package.

This demo requires access to a mongodb instance for storing push subscription info to send push updates at some other point in time. It also requires specifying a public and private key for identifying your server to the push service's server. These keys, known as VAPID public/private keys, can be generated and printed to the console when first executing the site. The site can be executed by running node index.js which will start a server on port 4000. You'll need to populate those keys as environment variables and execute node index.js again to ensure that push messages can be configured from your server.

If you are using VS Code you can set the environment variables mentioned above in your launch.json file as follows:

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "node",
            "request": "launch",
            "name": "Launch demo",
            "program": "${workspaceFolder}/index.js",
            "env": {
                "DATABASE_CONNECTION_URI": "YOUR CONNECTION STRING",
                "VAPID_PUBLIC_KEY": "YOUR PUBLIC KEY",
                "VAPID_PRIVATE_KEY": "YOUR PRIVATE KEY",
            }
        },
        {
            "type": "node",
            "request": "launch",
            "name": "Job",
            "program": "${workspaceFolder}/App_data/jobs/triggered/notify/index.js",
            "cwd": "${workspaceFolder}/App_data/jobs/triggered/notify",
            "env": {
                "DATABASE_CONNECTION_URI": "YOUR CONNECTION STRING",
                "VAPID_PUBLIC_KEY": "YOUR PUBLIC KEY",
                "VAPID_PRIVATE_KEY": "YOUR PRIVATE KEY",
            }
        }
    ]
}

Alternatively, you can modify configured-web-push.js and db/db.js and set the values there explicitly:

const databaseConnectionURI = process.env.DATABASE_CONNECTION_URI || '';
const vapidPublicKey = process.env.VAPID_PUBLIC_KEY || '';
const vapidPrivateKey = process.env.VAPID_PRIVATE_KEY || '';