RPC & ZMQ bridge

Renderer → flow-bg-server (http://127.0.0.1:56486, routes under /api/* and /rpc/*) → NayaCore ZMQ REP (127.0.0.1:56500, JSON payloads) → device.

Generic ZMQ bridge (live-proven)

POST /rpc/send-nayacore-zmq-message
{"messages": ["command", "<event>", "", "<json-string>"]}

i.e. messages = [topic, event, ...frames]. Server replies {"status": "message sent"} — that only means the bridge forwarded it; watch the NayaCore log for the real verdict.

Observed live messages (from logs/flow/NayaFlow-bg-*.log, Sending ZMQ message to NayaCore: %+v):

[command update_create_fw  ]
[command create_pairing_start  {"target_device_left":"<usb-serial-left>","target_device_right":"<usb-serial-right>"}]
[command clear_data  {"targetDevices":[]}]
[command repair_flash  {"target_devices":[],"target_partitions":[]}]
[command clear_ble_devices  {...}]

Note the casing drift (targetDevices vs target_devices) — match the exact form per command.

Dispatch whitelist (15 events — static, installed binary)

flash_keymap, update_keymap, start_device_manager, close_device_manager, force_touch_start, force_tune_start, force_track_start, create_pairing_start, update_module_fw, update_create_fw, update_fw_files, repair_flash, clear_data, clear_ble_devices, set_handshake_frequency.

Anything else → Unknown command event: invalid_command_event (Error 4). In particular clear_all_data is NOT dispatchable: the full si_clearAllData_req_source → … → doClearAllDataOperations chain exists in the binary (17 ZMQ slots incl. clearAllData), but the event string never routes to it — the 'clear_all_data' string is a log/ProcessID tag inside the unreachable function. The device-side op is reachable directly on the wire instead: 30/10ca.

Other bridge routes (binary strings): /factory-reset (present in binary, 404 on the live mux as bare GET/POST/OPTIONS — registration unknown), /naya-core-zmq, /naya-core-device-info, /naya-core-naya-devices, /export-user-data/, /import-user-data/, /import-userdata-beta/, /list-userdata-backups/, /module-settings/, /actions/:symbol, /open-log-folder, plus sse: streams (device_list, message-stream, flash-keymap-state, device-info-stream, naya-devices-stream).