# Read Receipts & Delivery Status Module
## Overview
The **Read Receipts & Delivery Status** module provides a robust solution for tracking the delivery and visibility of messages within communication systems. This module is designed to offer real-time feedback on message statuses, ensuring that both senders and recipients can monitor the effectiveness of their communications.
## Purpose
The primary purpose of this module is to confirm whether a message has been successfully delivered to the recipient's device and whether it has been viewed. By tracking these metrics, developers can integrate essential communication features into their applications, such as email clients, messaging apps, or notification systems. This functionality enhances user experience by providing transparency and reliability in message transmission.
## Benefits
1. **Real-Time Tracking**: The module offers real-time updates on the status of each message, allowing users to know immediately whether their messages have been delivered.
2. **Read Receipts**: It provides confirmation when a recipient has viewed a message, which is particularly useful for critical or time-sensitive communications.
3. **Enhanced Communication Logging**: By maintaining logs of delivery and read statuses, developers can analyze communication patterns and troubleshoot issues efficiently.
4. **Simplified Integration**: The module abstracts the complexity of tracking message status, enabling developers to focus on core application logic without additional overhead.
## Usage Scenarios
1. **Email Notifications**: Developers can integrate this module into email clients or notification services to confirm that emails have been delivered and opened, ensuring that users are aware of their messages' reach.
2. **Messaging Applications**: In chat applications, read receipts provide immediate feedback, enhancing user interaction by showing when messages have been viewed.
3. **System Notifications**: For system-level notifications (e.g., server alerts), this module ensures that recipients know they've received critical updates, improving operational efficiency.
By leveraging the Read Receipts & Delivery Status module, developers can build more reliable and user-friendly communication systems, ensuring that every message sent is accounted for.
# Read Receipts & Delivery Status Module Documentation
This module provides functionalities to track the delivery and viewing status of messages within the application.
## Feature Name: Delivery Confirmation
The module confirms when a message reaches the recipient's device. This feature ensures that senders are notified upon successful delivery, enhancing communication reliability.
## Feature Name: Read Receipts
Tracks whether a message has been read by the recipient, capturing this data to provide senders with confirmation of message visibility.
## Feature Name: Message Status Tracking
Enables monitoring of message states such as sent, delivered, and read. This feature offers comprehensive insights into each message's journey from sender to receiver.
## Feature Name: Time Stamping
Records exact times for each status change, allowing precise tracking and analysis of message delivery and viewing activities.
## Feature Name: Status Storage
Manages the storage of message statuses in a structured format within databases or logs, ensuring data persistence and accessibility for future reference.
## Feature Name: Integration with Notifications
Works seamlessly with notification systems to alert users about updates in message status, enhancing user experience by providing real-time feedback.
Here's a detailed technical documentation for the Read Receipts & Delivery Status module:
### 1. Module Overview
The Read Receipts & Delivery Status module is designed to track the status of messages sent through the system. It provides functionality to:
- Confirm when a message is delivered
- Track when a message is read by the recipient
- Store delivery and read timestamps
This module integrates with both the sender's and recipient's interfaces to provide real-time status updates.
---
### 2. Key Functionality
#### **Message Status Tracking**
- Messages are tracked from the moment they are sent until they are either delivered or expire.
- Each message has:
- `delivery_status`: "sent", "delivered", "failed"
- `read_status`: "unread", "read"
#### **Timestamps**
- `created_at`: When the message was created
- `sent_at`: When the message was sent to the queue
- `delivered_at`: When the message was delivered to the recipient
- `read_at`: When the message was read by the recipient
---
### 3. API Endpoints (FastAPI Example)
#### **Create Message Endpoint**
```python
@app.post("/api/messages")
async def send_message(
recipient_id: str = Path(...),
message_data: SendMessageRequest = Body(...)
):
# Validate input
if not validate_recipient(recipient_id):
raise HTTPException(status_code=400, detail="Invalid recipient ID")
# Create new message
db.create_message(
recipient_id=recipient_id,
content=message_data.message,
delivery_status="sent",
read_status=False,
created_at=datetime.now()
)
return {"status": "success", "message_id": str(uuid.uuid4())}
4. React UI Snippet (Message Status Display)
import { useState, useEffect } from 'react';
function MessageStatus() {
const [messages, setMessages] = useState([]);
useEffect(() => {
fetch('/api/messages/status')
.then((res) => res.json())
.then((data) => setMessages(data));
}, []);
return (
<div className="message-status-container">
{messages.map((msg) => (
<div key={msg.id} className={`message-item ${msg.read_status}`}>
<div className="message-info">
<h3>Message ID: {msg.id}</h3>
<p>Recipient: {msg.recipient_id}</p>
<p>Status:
{msg.delivery_status === "delivered" && msg.read_status ? (
"Delivered and Read"
) : msg.delivery_status === "delivered" ? (
"Delivered but Unread"
) : (
"Message is being sent..."
)}
</p>
<div className="timestamps">
<p>Sent: {msg.created_at}</p>
<p>Delivered: {msg.delivered_at || "-"}</p>
<p>Read: {msg.read_at || "-"}</p>
</div>
</div>
</div>
))}
</div>
);
}
export default MessageStatus;
5. Data Schema (Pydantic Model)
from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime
class Message(BaseModel):
id: str = Field(..., description="Unique message ID")
recipient_id: str = Field(..., description="Recipient user ID")
content: str = Field(..., description="Message content", max_length=500)
delivery_status: Literal["sent", "delivered", "failed"] = Field(
default="sent", description="Current delivery status"
)
read_status: bool = Field(default=False, description="Whether message was read")
created_at: datetime = Field(..., description="When the message was created")
delivered_at: Optional[datetime] = Field(None, description="When the message was delivered")
read_at: Optional[datetime] = Field(None, description="When the message was read")
class MessageResponse(Message):
sender_id: str = Field(..., description="Sender user ID")
status_details: dict = Field(
...,
description="Additional status details (e.g., delivery attempts)"
)
6. Example Usage
Sending a Message
curl -X POST \
http://localhost:8000/api/messages/5 \
-H "Content-Type: application/json" \
-d '{"message": "Hello, this is a test message."}'
Checking Delivery Status
// In React component:
const response = await fetch('/api/messages/status');
const data = await response.json();
console.log('Message status:', data);
7. Notes for Developers
- Database Design: Use a relational database (e.g., PostgreSQL) to store message metadata and timestamps.
- Error Handling: Implement retry logic for failed deliveries and handle network errors gracefully.
- WebSockets: Consider adding WebSocket support for real-time status updates without polling.
- Message Expiration: Messages should expire after a certain period (e.g., 30 days) to prevent database bloat.
This documentation provides a foundation for implementing read receipts and delivery status tracking in your application.
Module Name: Read Receipts & Delivery Status
Category: Communication
Summary:
This module provides functionality to confirm when a message is delivered and seen by the recipient. It ensures end-to-end visibility of message status and acknowledges successful delivery.
Related Modules:
- Message Queue: Handles the storage and retrieval of messages before they are sent.
- Notification Service: Manages alerts and notifications for message statuses.
- User Preferences: Stores user-specific settings, such as opting in or out of read receipts.
- Audit Logging: Tracks message delivery attempts and status changes.
Use Cases:
1. Real-Time Delivery Confirmation
- When a message is sent, the module updates the sender with the delivery status (e.g., “Message delivered” or “Message failed to deliver”).
- Example: An email service provider confirming email delivery to the sender.
2. End-User Status Tracking
- Recipients can view the status of incoming messages within their interface (e.g., “Seen,” “Delivered,” or “Failed”).
- Example: A messaging app showing message statuses in a conversation thread.
3. Retry and Resend Mechanism
- If a message fails to deliver, the module attempts to resend it after a specified interval.
- Example: SMS gateways retrying failed text messages.
Integration Tips:
- Message Tracking: Ensure that each message has a unique identifier for tracking delivery status.
- Error Handling: Implement retry logic and fallback mechanisms for failed deliveries.
- Configuration Management: Use environment-specific configurations for features like read receipts or delivery notifications.
- Asynchronous Processing: Handle delivery statuses asynchronously to avoid blocking the main application thread.
- Security: Encrypt sensitive data such as message IDs and status updates when transmitting over insecure channels.
Configuration Options:
| Parameter | Description | Default Value |
|---|---|---|
enable_read_receipts | Enables read receipts for messages | true |
max_retries | Maximum number of retry attempts for failed messages | 3 |
delivery_status_interval | Time interval (in seconds) to check delivery status | 60 |
enable_audit_logging | Enables logging of message delivery attempts | false |
notification_enabled | Sends notifications for undelivered messages | true |
Notes:
- This module integrates seamlessly with existing messaging systems and third-party services.
- For more details, refer to the API documentation or contact support.