---
title: "Alternative approaches to \"push\" notifications without SignalR"  
description: "Alternative approaches to \"push\" notifications without SignalR"  
author: "ICSM Computer"  
published: 2025-06-18  
updated: 2025-06-18  
canonical: https://www.mindstick.com/interview/34258/alternative-approaches-to-push-notifications-without-signalr  
category: "c#"  
tags: ["c#"]  
reading_time: 5 minutes  

---

# Alternative approaches to "push" notifications without SignalR

### Here are alternative approaches to "push" notifications without SignalR:

### 1. Long Polling / AJAX Polling (Simplest)

- The client periodically polls the server (e.g., every 10–30 seconds) asking, *"Any new updates?"*
- If yes, the server returns data (e.g., "Article Approved", "Blog Deleted").

**Pros**:

- Very easy to implement
- Works on all browsers

**Cons**:

- Not real-time
- Wastes resources if nothing new most of the time

**Use if**:

- You want simplicity and semi-live updates (e.g., every 30s)

### 2. Web Push Notifications

- This is the browser-based **push notification system** via the **Push API + Service Workers**.
- You need:

   - HTTPS
   - Service Worker registered in the browser
   - User permission to receive notifications
   - Backend to send a push payload (often using **VAPID** keys)

**Pros**:

- Works even when the user is **not on your site** (if the browser is open)
- Modern and reliable (used by Gmail, Facebook, etc.)

**Cons**:

- Only supported in modern browsers
- Requires client-side setup with service workers
- ASP.NET 4.7 needs a custom library to send Web Push (e.g., using `WebPush.Net`)

**Use if**:

- You want **true push notifications** like mobile apps

### 3. Mobile Push Notifications (FCM, APNs)

If you're building a **mobile or hybrid app**, you can use:

- **Firebase Cloud Messaging (FCM)** – for Android/web
- **Apple Push Notification Service (APNs)** – for iOS

You can send push messages from your ASP.NET 4.7 backend using HTTP API calls to FCM/APNs.

**Use if**:

- Your users are on mobile or you have a mobile app

### 4. Email Notifications

Simple but asynchronous.

- User gets an email for events like article approval, blog deletion, etc.

### 5. In-App Notification System (Database-Based)

This is **not real push**, but works well with polling:

- Store notifications in a DB (`Notifications` table).
- Use AJAX polling to fetch unread notifications.
- Show them in a dropdown or toast.

You can even combine this with SignalR/Web Push later if needed.

## Which Should You Use?

| Goal | Best Option |
| --- | --- |
| Live in-page updates | SignalR (best), else polling |
| Push to desktop browser | Web Push API (with service worker) |
| Push to mobile | Firebase / APNs |
| Simpler fallback | AJAX polling + DB notifications |
| Asynchronous update | Email/SMS/etc. |

### Summary:

Yes, in ASP.NET Framework 4.7, you **can** notify users *without SignalR* using:

- **AJAX polling**
- **Web Push API**
- **Mobile push APIs (FCM/APNs)**
- **Emails or SMS**
- **Database-driven in-app alerts**

## Answers

### Answer by ICSM Computer

### Here are alternative approaches to "push" notifications without SignalR:

### 1. Long Polling / AJAX Polling (Simplest)

- The client periodically polls the server (e.g., every 10–30 seconds) asking, *"Any new updates?"*
- If yes, the server returns data (e.g., "Article Approved", "Blog Deleted").

**Pros**:

- Very easy to implement
- Works on all browsers

**Cons**:

- Not real-time
- Wastes resources if nothing new most of the time

**Use if**:

- You want simplicity and semi-live updates (e.g., every 30s)

### 2. Web Push Notifications

- This is the browser-based **push notification system** via the **Push API + Service Workers**.
- You need:

   - HTTPS
   - Service Worker registered in the browser
   - User permission to receive notifications
   - Backend to send a push payload (often using **VAPID** keys)

**Pros**:

- Works even when the user is **not on your site** (if the browser is open)
- Modern and reliable (used by Gmail, Facebook, etc.)

**Cons**:

- Only supported in modern browsers
- Requires client-side setup with service workers
- ASP.NET 4.7 needs a custom library to send Web Push (e.g., using `WebPush.Net`)

**Use if**:

- You want **true push notifications** like mobile apps

### 3. Mobile Push Notifications (FCM, APNs)

If you're building a **mobile or hybrid app**, you can use:

- **Firebase Cloud Messaging (FCM)** – for Android/web
- **Apple Push Notification Service (APNs)** – for iOS

You can send push messages from your ASP.NET 4.7 backend using HTTP API calls to FCM/APNs.

**Use if**:

- Your users are on mobile or you have a mobile app

### 4. Email Notifications

Simple but asynchronous.

- User gets an email for events like article approval, blog deletion, etc.

### 5. In-App Notification System (Database-Based)

This is **not real push**, but works well with polling:

- Store notifications in a DB (`Notifications` table).
- Use AJAX polling to fetch unread notifications.
- Show them in a dropdown or toast.

You can even combine this with SignalR/Web Push later if needed.

## Which Should You Use?

| Goal | Best Option |
| --- | --- |
| Live in-page updates | SignalR (best), else polling |
| Push to desktop browser | Web Push API (with service worker) |
| Push to mobile | Firebase / APNs |
| Simpler fallback | AJAX polling + DB notifications |
| Asynchronous update | Email/SMS/etc. |

### Summary:

Yes, in ASP.NET Framework 4.7, you **can** notify users *without SignalR* using:

- **AJAX polling**
- **Web Push API**
- **Mobile push APIs (FCM/APNs)**
- **Emails or SMS**
- **Database-driven in-app alerts**


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Original Source: https://www.mindstick.com/interview/34258/alternative-approaches-to-push-notifications-without-signalr

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