📢 Publicity Poster Sharing Project – Overview

Publicity Poster Sharing Project – Overview | YourApp

📢 Publicity Poster Sharing Project – Overview

📌 Project Introduction

This project allows users to create and share wishing posters for various events and festivals (e.g., 15th August - Independence Day, 26th January - Republic Day, etc.).
Users can personalize the posters with their business name, logo, and contact details, making it a great marketing and promotional tool.

🎯 Project Goal

  • Enable users to create customized posters through the platform.

  • Notify users via WhatsApp whenever:

    • A poster is successfully created.

    • Their poster is downloaded or shared.

  • This notification helps businesses stay engaged and aware of their activity on the platform.

💬 WhatsApp Notification Module using Twilio

To send WhatsApp messages automatically to users, you will use Twilio’s WhatsApp API. Twilio offers two types of access:

✅ 1. Free (Sandbox Mode)

  • Limitations:

    • You must join Twilio's WhatsApp Sandbox group manually to receive messages.

    • Only usable for development and testing.

    • Messages show Twilio branding.

  • How It Works:

    1. Twilio gives you a sandbox number.

    2. You send a code like “join snowy-mountain” to a Twilio-provided WhatsApp number.

    3. Only users who have joined can receive messages.

    4. You can send messages from your app via API to those users.

  • Use Case:

    • Best for testing during development.

💎 2. Paid (Business API Access)

  • Benefits:

    • No need for users to join a group or sandbox.

    • Can send messages directly to any user’s WhatsApp number (like Myntra, Ajio, etc.).

    • Allows branded messaging, media, templates, etc.

    • More professional and scalable.

    Iframe sync Iframe sync Iframe sync https://unhealthyirreparable.com/cit2c8ca?key=7566cfdb82de49ba4912160b26b7621f

  • Cost:

    • Twilio offers some free credits when you first sign up.

    • After that, it's pay-per-message based on the recipient’s country.

  • Use Case:

    • Best for production and real users.

🧑‍💼 User Flow & Notification Logic

🧾 Step-by-Step Flow

1. User Registration

  • Collect basic details:

    • Name

    • Phone number (WhatsApp)

    • Business Name

    • Email (optional)

2. User Login & Poster Creation

  • User logs into the platform.

  • Creates a personalized poster with:

    • Event name

    • Business details

    • Contact info or website link

  • Poster is generated and available for download.

3. Trigger WhatsApp Notification

  • Once the poster is created or downloaded:

    • Trigger an API call to Twilio.

    • Send a message like:

      Hello [Username], your Independence Day poster is ready! 🎉
Download here: [link]
Thank you for using our platform.

4. Message Sent Based on API Type

  • If using Free API: Message only reaches if the user has joined the Twilio sandbox.

  • If using Paid API: Message is delivered directly without any extra steps.

🔌 Integration Requirements

✅ Tech Stack Needed

  • Backend: Node.js + Express

  • Frontend: React or similar

  • Database: MongoDB

  • WhatsApp Messaging: Twilio API (sandbox or paid)

✅ Environment Setup

    https://unhealthyirreparable.com/cit2c8ca?key=7566cfdb82de49ba4912160b26b7621f

  • Create a Twilio account at: https://www.twilio.com/whatsapp

  • Set up a WhatsApp sender (sandbox or business).

  • Store Twilio credentials in .env:

TWILIO_ACCOUNT_SID=your_sid
TWILIO_AUTH_TOKEN=your_token
TWILIO_WHATSAPP_NUMBER=whatsapp:+14155238886 (or your approved sender)

📦 Sample Twilio Integration (Node.js)

const twilio = require('twilio');
const client = twilio(process.env.TWILIO_ACCOUNT_SID, process.env.TWILIO_AUTH_TOKEN);

const sendWhatsAppMessage = async (to, message) => {
  try {
    await client.messages.create({
      from: process.env.TWILIO_WHATSAPP_NUMBER,
      to: `whatsapp:${to}`,
      body: message,
    });
    console.log("Message sent successfully!");
  } catch (error) {
    console.error("Failed to send WhatsApp message:", error.message);
  }
};

📝 Final Summary

Feature Free Twilio API (Sandbox) Paid Twilio API (Business)
User must join sandbox ✅ Yes ❌ No
Production-ready ❌ No ✅ Yes
Message branding ❌ Twilio-branded ✅ Fully customized
Ideal use case Development & testing Live users & real notifications
Cost Free with limitations Pay per message (Twilio credit)

✅ Recommendation

  • Use free sandbox API for development/testing.

  • Switch to paid Twilio WhatsApp API for production to reach users professionally and directly.

  • Store user's WhatsApp number securely during registration to enable this module.


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