Convert a formal query language into the OPC UA Event Filter byte-code encoding — directly in your browser.
OPC UA Event Filters provide powerful constructs for the server-side selection of relevant events, but the feature is underused in practice because of their complexity. Event Filters are expressed in a “byte-code” encoding, and assembling that encoding by hand is difficult and error-prone.
This tool converts a formal query language into that byte-code encoding. The parser runs locally as WebAssembly — nothing is sent to a server.
Read the ETFA 2024 paper