API Reference

The public C++ API, organised by module and generated from the documented headers in sdk/interface.

Hand-written built-in OPC UA types: NodeId, Variant, StatusCode, DataValue, and more.

The node/reference graph model, instantiation engine, and conditions.

Client-side API: sessions, subscriptions, and service calls.

Server entry point, endpoints, services, and auth hooks.

Cryptography, certificates, and security policies.

TCP transport: connections, acceptors, connectors, and framing.

UA Binary and XML encoders and decoders.

Stream and memory-buffer abstractions used by the codecs.

Strand, on-strand helper, trampoline, timer, and registry utilities.

Shared utilities: results, error detail, logging, and helpers.

Application-description and bootstrap types shared by client and server.

The engine that answers HistoryRead and HistoryUpdate, the store interface behind it, and the SQLite store that implements one.

Generated namespace-0 data types: service messages, structures, enumerations, and unions.

Generated well-known NodeId identifiers (DataTypeId, ObjectId, …) and StatusCode constants.

Generated ObjectType, VariableType, and event-type instance handles for the address space.