Features are sets of capabilities provided by the Diffusion™ API. Some features are not supported or not fully supported in some SDKs.

The Diffusion Cloud libraries also provide capabilities that are not exposed through their APIs. Some of these capabilities can be configured.

Connection and reconnection

Asynchronous connection
Synchronous connection
Transport types
Connect via websockets (WS)
Connect via secure websockets (WSS)
Connect via HTTP long polling (XHR)
Connect via secure HTTP long polling (XHRS)
Cascade connection through multiple transports
Reconnection
Reconnection on disconnection or fail over
Resynchronize message streams on reconnect
Maintain a message recovery buffer for reconnection

Core functionality

Ping Diffusion Cloud
Request-response messaging
Subscribe to a topic or set of topics
Query time series topics

Topic management

Topic creation
Topic removal
Time series topic update and edit
Topic update
Stateless
Conditional
Partial
Update streams

Topic data wrangling

Topic views
Session Trees

Monitoring

Client session events connected to Diffusion Cloud
Client session events connected across a Diffusion Cloud cluster
Client queue events
Missing topic notifications
Metric alerts
Metric collectors

Server configuration

Remote Servers
Session authentication and role management
Roles permission management

Client control

Authentication handler
Subscribe or unsubscribe other client sessions
Close a client session
Conflate and throttle client sessions
Session properties
Retrieve from client sessions
Update user-defined session properties