Overview
WebSocketPro opens ws:// and wss:// connections, optionally with custom headers, and exchanges text/JSON. It manages a context and one or more socket objects.
Fork note Module
WebSocket was renamed to WebSocketPro for UE 4.27–5.0+ (carefully scoped so the engine's libWebSockets dependency was untouched); a header-map connect and URL helpers were added.Disabled by default This plugin ships the bundled third-party library
libwebsockets and is shipped with "EnabledByDefault": false. Enable it from Edit → Plugins (or set the flag in its .uplugin) once the library builds on your target platform.Requirements
| Requirement | Details |
|---|---|
| Unreal Engine | 4.27–5.0+ |
| Bundled library | libwebsockets (in Source/ThirdParty) |
| Language | Blueprints and/or C++ |
| Platforms | Win64 · Android |
Installation
- Copy the
WebSocketProfolder into your project'sPlugins/directory. - C++ projects: regenerate project files and build. Blueprint-only projects can launch the editor directly.
- Open Edit → Plugins and confirm WebSocketPro is enabled (it is off by default — turn it on).
Library API
| Node | Type | Description |
|---|---|---|
| Create Context | Callable | Create a WebSocket context with options. |
| Connect / Connect With Header Map | Callable | Open a connection, optionally with custom headers. |
| Json To Object / Object To Json | Callable | Convert between JSON strings and UObjects/structs. |
| Is Secure WebSocket Url / Is Valid WebSocket Url | Pure | URL checks (wss:// / well-formed). |
| Build WebSocket Url | Pure | Assemble ws(s)://host:port/path. |
Utility node pack
General-purpose networking utilities added to UWebSocketProBlueprintLibrary — available from Blueprints and C++.
| Node | Type | Description |
|---|---|---|
| CRC32 Of Bytes | Pure | CRC32 checksum of a byte array. |
| MD5 Of String / SHA1 Of String | Pure | Hex digests of a UTF-8 string. |
| Make Guid String | Pure | New random GUID (hyphenated). |
| Now Unix Seconds | Pure | Current UTC time as Unix seconds. |
| Unix Seconds To ISO8601 | Pure | Unix seconds → ISO-8601 UTC string. |
| Format Byte Size | Pure | Human-readable size, e.g. 1536 → 1.5 KB. |
| Random Token | Pure | Random alphanumeric token (ids, nonces). |
| XOR Bytes With Key | Pure | XOR bytes with a repeating key (obfuscation, not encryption). |
| Is Valid Hostname | Pure | RFC-952/1123-style hostname validation. |
Credits
© Alpha XP — alphaxp.net. Developed and maintained for UE 4.27–5.0+.