// the find
Johannes4Linux/open62541_example
Some examples for OPC UA server and client with open62541
A minimal OPC UA client/server example in C using the open62541 library, aimed at developers trying to get their first OPC UA node up and running. Three source files, no frills.
Shows the minimal boilerplate needed to stand up an OPC UA server and client side by side, which is genuinely useful since open62541's own docs can be hard to navigate. Vendoring open62541.c/.h as a single-file amalgamation means you can build without hunting down the library install. Separate makefiles for client and server keep the build paths clear.
Abandoned since July 2020 and the vendored open62541 amalgamation is almost certainly out of date — the library has had significant API changes since then. Three stars and no tests means there's no signal this actually works against a modern open62541 version. The README says 'make sure you have the open62541 library installed' while also vendoring it, which is contradictory and suggests the author didn't finish cleaning it up. No coverage of subscriptions, method calls, or security modes — the parts of OPC UA that actually trip people up.