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TLDR
PubNub offers a publish/subscribe messaging API to build real-time features into applications. Developers can use it to create chat experiences, deliver live updates, and manage IoT device communication. It enables low-latency, scalable data exchange for interactive and connected applications.
Capabilities
Publish/subscribe MessagingEnable real-time data streaming and communication between devices and users. Supports: fan-out, presence, message persistence, message ordering, message filtering.
ChatBuild interactive chat experiences with features like typing indicators, read receipts, and message history. Supports: 1-to-1 chat, group chat, chat rooms, message reactions, file sharing.
PresenceTrack the online/offline status of users and devices in real-time. Supports: user online/offline status, join/leave events, state management.
Functions (serverless)Execute serverless code in response to real-time events, enabling custom business logic and integrations. Supports: event-driven functions, data transformation, third-party integrations.
Access ManagementControl who can publish or subscribe to channels with fine-grained permissions. Supports: authentication, authorization, role-based access control (RBAC).
Push NotificationsSend real-time notifications to mobile devices even when the app is in the background. Supports: APNs (Apple Push Notification service), FCM (Firebase Cloud Messaging).
Storage & PlaybackStore and retrieve historical messages for chat history, auditing, or analytics. Supports: message persistence, message retrieval, time-based playback.
Io T Device CommunicationConnect and manage real-time communication for Internet of Things devices. Supports: device-to-device, device-to-cloud, cloud-to-device messaging.