node-opcua-transport
Version:
pure nodejs OPCUA SDK - module transport
79 lines • 3.73 kB
JavaScript
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/*!
* The MIT License (MIT)
* Copyright (c) 2022-2025 Sterfive SAS - 833264583 RCS ORLEANS - France (https://www.sterfive.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*/
/**
* @module node-opcua-transport/browser
*
* Browser-safe subset of `node-opcua-transport`. Selected automatically by
* bundlers (esbuild, webpack, vite, rollup) via the `"browser"` condition in
* this package's `exports` map.
*
* Excludes Node-only modules whose top-level `import "node:net" | "node:os"`
* statements would otherwise crash a `platform: "browser"` bundle even though
* the runtime never reaches them:
* - `client_tcp_transport` — opens a `net.Socket`
* - `default_client_transport_factory` — instantiates `ClientTCP_transport`
* - `server_tcp_transport` — Node-side server endpoint
*
* Browser-side OPC UA transports (e.g. `ClientWS_transport` from
* `node-opcua-client-browser`) extend `ClientTransportBase` from this entry,
* implement their own `connect()`, and inherit the inherited HEL/ACK,
* packet-assembly, and lifecycle machinery.
*
* ## Bundler configuration required
*
* Several files still re-exported here import `node:events` (e.g.
* `tcp_transport.ts`, `message_builder_base.ts`). Browser bundlers do not
* auto-polyfill `node:`-prefixed built-ins; consumers must alias them to
* polyfill packages. Example (esbuild):
*
* alias: {
* "node:events": "events",
* "node:util": "util",
* "node:buffer": "buffer"
* }
*
* Transitively, `node-opcua-debug` and `node-opcua-utils` also need these
* aliases. We deliberately do not declare the polyfills as dependencies of
* the transport package — Node consumers would pay the install cost for no
* benefit, and Node would prefer the npm port over its own built-in.
*/
__exportStar(require("./AcknowledgeMessage"), exports);
__exportStar(require("./client_transport_base"), exports);
__exportStar(require("./HelloMessage"), exports);
__exportStar(require("./i_client_transport"), exports);
__exportStar(require("./i_hello_ack_limits"), exports);
__exportStar(require("./message_builder_base"), exports);
__exportStar(require("./status_codes"), exports);
__exportStar(require("./TCPErrorMessage"), exports);
__exportStar(require("./tcp_transport"), exports);
__exportStar(require("./tools"), exports);
__exportStar(require("./utils"), exports);
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