Ably Pub/Sub is a cloud-based, fully managed publish/subscribe messaging service that uses WebSocket technology to deliver realtime data between publishers and subscribers. It provides flexible APIs to build low-latency, scalable, and reliable realtime applications, decoupling publishers from subscribers through named channels. Ably handles message delivery, ordering, and integrity, allowing developers to focus on application logic rather than infrastructure management.

Key Features

WebSocket-based Pub/Sub Messaging Enables realtime data exchange between publishers and subscribers via channels.

• High throughput and low latency.
• Supports billions of messages and millions of concurrent connections.

Flexible APIs and SDKs Provides client libraries for various languages and platforms.

• Easy integration with web, mobile, and IoT applications.
• Supports JavaScript, Python, Java, and more.

Channel-based Architecture Messages are organized into named channels for topic-based communication.

• Decouples publishers and subscribers.
• Enables targeted message delivery.

Scalability and Reliability Built for global scale with automatic failover and data integrity.

• Multi-region support for high availability.
• Guarantees message ordering and exactly-once delivery.

Composability with Other Ably Products Integrates with features like live chat, asset tracking, and collaborative tools.

• Combine with Ably Spaces, LiveSync, and LiveObjects for richer experiences.

Presence and Message History Supports presence detection and message history retrieval.

• Enables collaborative and interactive features.
• Maintains state and context across sessions.

Benefits

Rapid Development of Realtime Applications Abstracts the complexity of realtime messaging infrastructure.

• Developers can focus on core functionality.
• Reduces time-to-market for realtime features.

Highly Reliable and Secure Data Delivery Ensures robust message delivery with integrity guarantees.

• Minimizes risk of data loss or duplication.
• Secure authentication and access control.

Global Scalability Handles large-scale, global user bases with elastic scaling.

• Suitable for applications with millions of users.
• No need to manage WebSocket servers or cloud infrastructure