diff --git a/socketio-draw-board/.gitignore b/socketio-draw-board/.gitignore
new file mode 100644
index 0000000..dc5d4c8
--- /dev/null
+++ b/socketio-draw-board/.gitignore
@@ -0,0 +1,4 @@
+node_modules
+dist
+.DS_Store
+.env
diff --git a/socketio-draw-board/README.md b/socketio-draw-board/README.md
new file mode 100644
index 0000000..8b8b1de
--- /dev/null
+++ b/socketio-draw-board/README.md
@@ -0,0 +1,40 @@
+# Socket.IO Collaborative Draw Board
+
+A Codesphere-ready collaborative drawing board built with Express, Socket.IO, and a browser canvas. Multiple people can join the same room, draw together in real time, clear the board, and export the current canvas as a JPG.
+
+## Features
+
+- Real-time drawing synchronization with Socket.IO
+- Shareable room names through the URL
+- Brush color and size controls
+- Connected-user count
+- Clear-board event shared across the room
+- Download the canvas as `draw-board.jpg`
+- One-workspace Codesphere deployment through `ci.yml`
+
+## Run Locally
+
+```bash
+npm install
+npm start
+```
+
+Open `http://localhost:3000`.
+
+To test collaboration locally, open the same URL in two browser windows. Add a room name with `?room=team-sketch` to isolate a board.
+
+## Deploy On Codesphere
+
+Create a Codesphere workspace from this template and run the included CI pipeline:
+
+1. `prepare` installs dependencies.
+2. `test` validates the server entry point.
+3. `run` starts the Socket.IO app on port `3000`.
+
+Codesphere exposes the app URL for your workspace automatically.
+
+## Customize
+
+- Edit `public/app.js` to add tools such as rectangles, undo, or saved boards.
+- Edit `public/styles.css` to match your brand.
+- Add persistence in `server.js` if rooms should survive server restarts.
diff --git a/socketio-draw-board/ci.yml b/socketio-draw-board/ci.yml
new file mode 100644
index 0000000..0c637c0
--- /dev/null
+++ b/socketio-draw-board/ci.yml
@@ -0,0 +1,14 @@
+prepare:
+ steps:
+ - name: "Install dependencies"
+ command: "npm install"
+
+test:
+ steps:
+ - name: "Validate server"
+ command: "node --check server.js"
+
+run:
+ steps:
+ - name: "Run"
+ command: "npm start"
diff --git a/socketio-draw-board/metadata.json b/socketio-draw-board/metadata.json
new file mode 100644
index 0000000..c9c1c6a
--- /dev/null
+++ b/socketio-draw-board/metadata.json
@@ -0,0 +1,10 @@
+{
+ "Workspace": "free",
+ "Links": {
+ "Socket.IO": "https://socket.io/",
+ "Express": "https://expressjs.com/"
+ },
+ "Categories": ["Application", "Framework"],
+ "Contributors": ["kenproxx"],
+ "Title": "Socket.IO - Collaborative Draw Board"
+}
diff --git a/socketio-draw-board/package-lock.json b/socketio-draw-board/package-lock.json
new file mode 100644
index 0000000..8d6bf2c
--- /dev/null
+++ b/socketio-draw-board/package-lock.json
@@ -0,0 +1,1096 @@
+{
+ "name": "socketio-draw-board",
+ "version": "1.0.0",
+ "lockfileVersion": 3,
+ "requires": true,
+ "packages": {
+ "": {
+ "name": "socketio-draw-board",
+ "version": "1.0.0",
+ "dependencies": {
+ "express": "^5.2.1",
+ "socket.io": "^4.8.1"
+ }
+ },
+ "node_modules/@socket.io/component-emitter": {
+ "version": "3.1.2",
+ "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.2.tgz",
+ "integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA==",
+ "license": "MIT"
+ },
+ "node_modules/@types/cors": {
+ "version": "2.8.19",
+ "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.19.tgz",
+ "integrity": "sha512-mFNylyeyqN93lfe/9CSxOGREz8cpzAhH+E93xJ4xWQf62V8sQ/24reV2nyzUWM6H6Xji+GGHpkbLe7pVoUEskg==",
+ "license": "MIT",
+ "dependencies": {
+ "@types/node": "*"
+ }
+ },
+ "node_modules/@types/node": {
+ "version": "25.7.0",
+ "resolved": "https://registry.npmjs.org/@types/node/-/node-25.7.0.tgz",
+ "integrity": "sha512-z+pdZyxE+RTQE9AcboAZCb4otwcrvgHD+GlBpPgn0emDVt0ohrTMhAwlr2Wd9nZ+nihhYFxO2pThz3C5qSu2Eg==",
+ "license": "MIT",
+ "dependencies": {
+ "undici-types": "~7.21.0"
+ }
+ },
+ "node_modules/@types/ws": {
+ "version": "8.18.1",
+ "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.1.tgz",
+ "integrity": "sha512-ThVF6DCVhA8kUGy+aazFQ4kXQ7E1Ty7A3ypFOe0IcJV8O/M511G99AW24irKrW56Wt44yG9+ij8FaqoBGkuBXg==",
+ "license": "MIT",
+ "dependencies": {
+ "@types/node": "*"
+ }
+ },
+ "node_modules/accepts": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
+ "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-types": "^3.0.0",
+ "negotiator": "^1.0.0"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/base64id": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
+ "integrity": "sha512-lGe34o6EHj9y3Kts9R4ZYs/Gr+6N7MCaMlIFA3F1R2O5/m7K06AxfSeO5530PEERE6/WyEg3lsuyw4GHlPZHog==",
+ "license": "MIT",
+ "engines": {
+ "node": "^4.5.0 || >= 5.9"
+ }
+ },
+ "node_modules/body-parser": {
+ "version": "2.2.2",
+ "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz",
+ "integrity": "sha512-oP5VkATKlNwcgvxi0vM0p/D3n2C3EReYVX+DNYs5TjZFn/oQt2j+4sVJtSMr18pdRr8wjTcBl6LoV+FUwzPmNA==",
+ "license": "MIT",
+ "dependencies": {
+ "bytes": "^3.1.2",
+ "content-type": "^1.0.5",
+ "debug": "^4.4.3",
+ "http-errors": "^2.0.0",
+ "iconv-lite": "^0.7.0",
+ "on-finished": "^2.4.1",
+ "qs": "^6.14.1",
+ "raw-body": "^3.0.1",
+ "type-is": "^2.0.1"
+ },
+ "engines": {
+ "node": ">=18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/bytes": {
+ "version": "3.1.2",
+ "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+ "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/call-bind-apply-helpers": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+ "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+ "license": "MIT",
+ "dependencies": {
+ "es-errors": "^1.3.0",
+ "function-bind": "^1.1.2"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/call-bound": {
+ "version": "1.0.4",
+ "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
+ "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bind-apply-helpers": "^1.0.2",
+ "get-intrinsic": "^1.3.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/content-disposition": {
+ "version": "1.1.0",
+ "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.1.0.tgz",
+ "integrity": "sha512-5jRCH9Z/+DRP7rkvY83B+yGIGX96OYdJmzngqnw2SBSxqCFPd0w2km3s5iawpGX8krnwSGmF0FW5Nhr0Hfai3g==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/content-type": {
+ "version": "1.0.5",
+ "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
+ "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/cookie": {
+ "version": "0.7.2",
+ "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
+ "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/cookie-signature": {
+ "version": "1.2.2",
+ "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.2.2.tgz",
+ "integrity": "sha512-D76uU73ulSXrD1UXF4KE2TMxVVwhsnCgfAyTg9k8P6KGZjlXKrOLe4dJQKI3Bxi5wjesZoFXJWElNWBjPZMbhg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=6.6.0"
+ }
+ },
+ "node_modules/cors": {
+ "version": "2.8.6",
+ "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.6.tgz",
+ "integrity": "sha512-tJtZBBHA6vjIAaF6EnIaq6laBBP9aq/Y3ouVJjEfoHbRBcHBAHYcMh/w8LDrk2PvIMMq8gmopa5D4V8RmbrxGw==",
+ "license": "MIT",
+ "dependencies": {
+ "object-assign": "^4",
+ "vary": "^1"
+ },
+ "engines": {
+ "node": ">= 0.10"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/debug": {
+ "version": "4.4.3",
+ "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
+ "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
+ "license": "MIT",
+ "dependencies": {
+ "ms": "^2.1.3"
+ },
+ "engines": {
+ "node": ">=6.0"
+ },
+ "peerDependenciesMeta": {
+ "supports-color": {
+ "optional": true
+ }
+ }
+ },
+ "node_modules/depd": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+ "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/dunder-proto": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+ "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bind-apply-helpers": "^1.0.1",
+ "es-errors": "^1.3.0",
+ "gopd": "^1.2.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/ee-first": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+ "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
+ "license": "MIT"
+ },
+ "node_modules/encodeurl": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz",
+ "integrity": "sha512-Q0n9HRi4m6JuGIV1eFlmvJB7ZEVxu93IrMyiMsGC0lrMJMWzRgx6WGquyfQgZVb31vhGgXnfmPNNXmxnOkRBrg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/engine.io": {
+ "version": "6.6.7",
+ "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.6.7.tgz",
+ "integrity": "sha512-DgOngfDKM2EviOH3Mr9m7ks1q8roetLy/IMmYthAYzbpInMbYc/GS+fWFA3rl1gvwKVsQrVV61fo5emD1y3OJQ==",
+ "license": "MIT",
+ "dependencies": {
+ "@types/cors": "^2.8.12",
+ "@types/node": ">=10.0.0",
+ "@types/ws": "^8.5.12",
+ "accepts": "~1.3.4",
+ "base64id": "2.0.0",
+ "cookie": "~0.7.2",
+ "cors": "~2.8.5",
+ "debug": "~4.4.1",
+ "engine.io-parser": "~5.2.1",
+ "ws": "~8.18.3"
+ },
+ "engines": {
+ "node": ">=10.2.0"
+ }
+ },
+ "node_modules/engine.io-parser": {
+ "version": "5.2.3",
+ "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.3.tgz",
+ "integrity": "sha512-HqD3yTBfnBxIrbnM1DoD6Pcq8NECnh8d4As1Qgh0z5Gg3jRRIqijury0CL3ghu/edArpUYiYqQiDUQBIs4np3Q==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=10.0.0"
+ }
+ },
+ "node_modules/engine.io/node_modules/accepts": {
+ "version": "1.3.8",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+ "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-types": "~2.1.34",
+ "negotiator": "0.6.3"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/engine.io/node_modules/mime-db": {
+ "version": "1.52.0",
+ "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+ "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/engine.io/node_modules/mime-types": {
+ "version": "2.1.35",
+ "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+ "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-db": "1.52.0"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/engine.io/node_modules/negotiator": {
+ "version": "0.6.3",
+ "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
+ "integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/es-define-property": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
+ "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/es-errors": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
+ "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/es-object-atoms": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+ "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+ "license": "MIT",
+ "dependencies": {
+ "es-errors": "^1.3.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/escape-html": {
+ "version": "1.0.3",
+ "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+ "integrity": "sha512-NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==",
+ "license": "MIT"
+ },
+ "node_modules/etag": {
+ "version": "1.8.1",
+ "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+ "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/express": {
+ "version": "5.2.1",
+ "resolved": "https://registry.npmjs.org/express/-/express-5.2.1.tgz",
+ "integrity": "sha512-hIS4idWWai69NezIdRt2xFVofaF4j+6INOpJlVOLDO8zXGpUVEVzIYk12UUi2JzjEzWL3IOAxcTubgz9Po0yXw==",
+ "license": "MIT",
+ "dependencies": {
+ "accepts": "^2.0.0",
+ "body-parser": "^2.2.1",
+ "content-disposition": "^1.0.0",
+ "content-type": "^1.0.5",
+ "cookie": "^0.7.1",
+ "cookie-signature": "^1.2.1",
+ "debug": "^4.4.0",
+ "depd": "^2.0.0",
+ "encodeurl": "^2.0.0",
+ "escape-html": "^1.0.3",
+ "etag": "^1.8.1",
+ "finalhandler": "^2.1.0",
+ "fresh": "^2.0.0",
+ "http-errors": "^2.0.0",
+ "merge-descriptors": "^2.0.0",
+ "mime-types": "^3.0.0",
+ "on-finished": "^2.4.1",
+ "once": "^1.4.0",
+ "parseurl": "^1.3.3",
+ "proxy-addr": "^2.0.7",
+ "qs": "^6.14.0",
+ "range-parser": "^1.2.1",
+ "router": "^2.2.0",
+ "send": "^1.1.0",
+ "serve-static": "^2.2.0",
+ "statuses": "^2.0.1",
+ "type-is": "^2.0.1",
+ "vary": "^1.1.2"
+ },
+ "engines": {
+ "node": ">= 18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/finalhandler": {
+ "version": "2.1.1",
+ "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-2.1.1.tgz",
+ "integrity": "sha512-S8KoZgRZN+a5rNwqTxlZZePjT/4cnm0ROV70LedRHZ0p8u9fRID0hJUZQpkKLzro8LfmC8sx23bY6tVNxv8pQA==",
+ "license": "MIT",
+ "dependencies": {
+ "debug": "^4.4.0",
+ "encodeurl": "^2.0.0",
+ "escape-html": "^1.0.3",
+ "on-finished": "^2.4.1",
+ "parseurl": "^1.3.3",
+ "statuses": "^2.0.1"
+ },
+ "engines": {
+ "node": ">= 18.0.0"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/forwarded": {
+ "version": "0.2.0",
+ "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
+ "integrity": "sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/fresh": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/fresh/-/fresh-2.0.0.tgz",
+ "integrity": "sha512-Rx/WycZ60HOaqLKAi6cHRKKI7zxWbJ31MhntmtwMoaTeF7XFH9hhBp8vITaMidfljRQ6eYWCKkaTK+ykVJHP2A==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/function-bind": {
+ "version": "1.1.2",
+ "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
+ "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+ "license": "MIT",
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/get-intrinsic": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+ "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bind-apply-helpers": "^1.0.2",
+ "es-define-property": "^1.0.1",
+ "es-errors": "^1.3.0",
+ "es-object-atoms": "^1.1.1",
+ "function-bind": "^1.1.2",
+ "get-proto": "^1.0.1",
+ "gopd": "^1.2.0",
+ "has-symbols": "^1.1.0",
+ "hasown": "^2.0.2",
+ "math-intrinsics": "^1.1.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/get-proto": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+ "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+ "license": "MIT",
+ "dependencies": {
+ "dunder-proto": "^1.0.1",
+ "es-object-atoms": "^1.0.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/gopd": {
+ "version": "1.2.0",
+ "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
+ "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/has-symbols": {
+ "version": "1.1.0",
+ "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+ "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/hasown": {
+ "version": "2.0.3",
+ "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.3.tgz",
+ "integrity": "sha512-ej4AhfhfL2Q2zpMmLo7U1Uv9+PyhIZpgQLGT1F9miIGmiCJIoCgSmczFdrc97mWT4kVY72KA+WnnhJ5pghSvSg==",
+ "license": "MIT",
+ "dependencies": {
+ "function-bind": "^1.1.2"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/http-errors": {
+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.1.tgz",
+ "integrity": "sha512-4FbRdAX+bSdmo4AUFuS0WNiPz8NgFt+r8ThgNWmlrjQjt1Q7ZR9+zTlce2859x4KSXrwIsaeTqDoKQmtP8pLmQ==",
+ "license": "MIT",
+ "dependencies": {
+ "depd": "~2.0.0",
+ "inherits": "~2.0.4",
+ "setprototypeof": "~1.2.0",
+ "statuses": "~2.0.2",
+ "toidentifier": "~1.0.1"
+ },
+ "engines": {
+ "node": ">= 0.8"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/iconv-lite": {
+ "version": "0.7.2",
+ "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.7.2.tgz",
+ "integrity": "sha512-im9DjEDQ55s9fL4EYzOAv0yMqmMBSZp6G0VvFyTMPKWxiSBHUj9NW/qqLmXUwXrrM7AvqSlTCfvqRb0cM8yYqw==",
+ "license": "MIT",
+ "dependencies": {
+ "safer-buffer": ">= 2.1.2 < 3.0.0"
+ },
+ "engines": {
+ "node": ">=0.10.0"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/inherits": {
+ "version": "2.0.4",
+ "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+ "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+ "license": "ISC"
+ },
+ "node_modules/ipaddr.js": {
+ "version": "1.9.1",
+ "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
+ "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.10"
+ }
+ },
+ "node_modules/is-promise": {
+ "version": "4.0.0",
+ "resolved": "https://registry.npmjs.org/is-promise/-/is-promise-4.0.0.tgz",
+ "integrity": "sha512-hvpoI6korhJMnej285dSg6nu1+e6uxs7zG3BYAm5byqDsgJNWwxzM6z6iZiAgQR4TJ30JmBTOwqZUw3WlyH3AQ==",
+ "license": "MIT"
+ },
+ "node_modules/math-intrinsics": {
+ "version": "1.1.0",
+ "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+ "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/media-typer": {
+ "version": "1.1.0",
+ "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-1.1.0.tgz",
+ "integrity": "sha512-aisnrDP4GNe06UcKFnV5bfMNPBUw4jsLGaWwWfnH3v02GnBuXX2MCVn5RbrWo0j3pczUilYblq7fQ7Nw2t5XKw==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/merge-descriptors": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-2.0.0.tgz",
+ "integrity": "sha512-Snk314V5ayFLhp3fkUREub6WtjBfPdCPY1Ln8/8munuLuiYhsABgBVWsozAG+MWMbVEvcdcpbi9R7ww22l9Q3g==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=18"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/sindresorhus"
+ }
+ },
+ "node_modules/mime-db": {
+ "version": "1.54.0",
+ "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz",
+ "integrity": "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/mime-types": {
+ "version": "3.0.2",
+ "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-3.0.2.tgz",
+ "integrity": "sha512-Lbgzdk0h4juoQ9fCKXW4by0UJqj+nOOrI9MJ1sSj4nI8aI2eo1qmvQEie4VD1glsS250n15LsWsYtCugiStS5A==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-db": "^1.54.0"
+ },
+ "engines": {
+ "node": ">=18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/ms": {
+ "version": "2.1.3",
+ "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+ "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+ "license": "MIT"
+ },
+ "node_modules/negotiator": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-1.0.0.tgz",
+ "integrity": "sha512-8Ofs/AUQh8MaEcrlq5xOX0CQ9ypTF5dl78mjlMNfOK08fzpgTHQRQPBxcPlEtIw0yRpws+Zo/3r+5WRby7u3Gg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/object-assign": {
+ "version": "4.1.1",
+ "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+ "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=0.10.0"
+ }
+ },
+ "node_modules/object-inspect": {
+ "version": "1.13.4",
+ "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz",
+ "integrity": "sha512-W67iLl4J2EXEGTbfeHCffrjDfitvLANg0UlX3wFUUSTx92KXRFegMHUVgSqE+wvhAbi4WqjGg9czysTV2Epbew==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/on-finished": {
+ "version": "2.4.1",
+ "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
+ "integrity": "sha512-oVlzkg3ENAhCk2zdv7IJwd/QUD4z2RxRwpkcGY8psCVcCYZNq4wYnVWALHM+brtuJjePWiYF/ClmuDr8Ch5+kg==",
+ "license": "MIT",
+ "dependencies": {
+ "ee-first": "1.1.1"
+ },
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/once": {
+ "version": "1.4.0",
+ "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+ "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
+ "license": "ISC",
+ "dependencies": {
+ "wrappy": "1"
+ }
+ },
+ "node_modules/parseurl": {
+ "version": "1.3.3",
+ "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+ "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/path-to-regexp": {
+ "version": "8.4.2",
+ "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.4.2.tgz",
+ "integrity": "sha512-qRcuIdP69NPm4qbACK+aDogI5CBDMi1jKe0ry5rSQJz8JVLsC7jV8XpiJjGRLLol3N+R5ihGYcrPLTno6pAdBA==",
+ "license": "MIT",
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/proxy-addr": {
+ "version": "2.0.7",
+ "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
+ "integrity": "sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==",
+ "license": "MIT",
+ "dependencies": {
+ "forwarded": "0.2.0",
+ "ipaddr.js": "1.9.1"
+ },
+ "engines": {
+ "node": ">= 0.10"
+ }
+ },
+ "node_modules/qs": {
+ "version": "6.15.1",
+ "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.1.tgz",
+ "integrity": "sha512-6YHEFRL9mfgcAvql/XhwTvf5jKcOiiupt2FiJxHkiX1z4j7WL8J/jRHYLluORvc1XxB5rV20KoeK00gVJamspg==",
+ "license": "BSD-3-Clause",
+ "dependencies": {
+ "side-channel": "^1.1.0"
+ },
+ "engines": {
+ "node": ">=0.6"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/range-parser": {
+ "version": "1.2.1",
+ "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
+ "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/raw-body": {
+ "version": "3.0.2",
+ "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-3.0.2.tgz",
+ "integrity": "sha512-K5zQjDllxWkf7Z5xJdV0/B0WTNqx6vxG70zJE4N0kBs4LovmEYWJzQGxC9bS9RAKu3bgM40lrd5zoLJ12MQ5BA==",
+ "license": "MIT",
+ "dependencies": {
+ "bytes": "~3.1.2",
+ "http-errors": "~2.0.1",
+ "iconv-lite": "~0.7.0",
+ "unpipe": "~1.0.0"
+ },
+ "engines": {
+ "node": ">= 0.10"
+ }
+ },
+ "node_modules/router": {
+ "version": "2.2.0",
+ "resolved": "https://registry.npmjs.org/router/-/router-2.2.0.tgz",
+ "integrity": "sha512-nLTrUKm2UyiL7rlhapu/Zl45FwNgkZGaCpZbIHajDYgwlJCOzLSk+cIPAnsEqV955GjILJnKbdQC1nVPz+gAYQ==",
+ "license": "MIT",
+ "dependencies": {
+ "debug": "^4.4.0",
+ "depd": "^2.0.0",
+ "is-promise": "^4.0.0",
+ "parseurl": "^1.3.3",
+ "path-to-regexp": "^8.0.0"
+ },
+ "engines": {
+ "node": ">= 18"
+ }
+ },
+ "node_modules/safer-buffer": {
+ "version": "2.1.2",
+ "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+ "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+ "license": "MIT"
+ },
+ "node_modules/send": {
+ "version": "1.2.1",
+ "resolved": "https://registry.npmjs.org/send/-/send-1.2.1.tgz",
+ "integrity": "sha512-1gnZf7DFcoIcajTjTwjwuDjzuz4PPcY2StKPlsGAQ1+YH20IRVrBaXSWmdjowTJ6u8Rc01PoYOGHXfP1mYcZNQ==",
+ "license": "MIT",
+ "dependencies": {
+ "debug": "^4.4.3",
+ "encodeurl": "^2.0.0",
+ "escape-html": "^1.0.3",
+ "etag": "^1.8.1",
+ "fresh": "^2.0.0",
+ "http-errors": "^2.0.1",
+ "mime-types": "^3.0.2",
+ "ms": "^2.1.3",
+ "on-finished": "^2.4.1",
+ "range-parser": "^1.2.1",
+ "statuses": "^2.0.2"
+ },
+ "engines": {
+ "node": ">= 18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/serve-static": {
+ "version": "2.2.1",
+ "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-2.2.1.tgz",
+ "integrity": "sha512-xRXBn0pPqQTVQiC8wyQrKs2MOlX24zQ0POGaj0kultvoOCstBQM5yvOhAVSUwOMjQtTvsPWoNCHfPGwaaQJhTw==",
+ "license": "MIT",
+ "dependencies": {
+ "encodeurl": "^2.0.0",
+ "escape-html": "^1.0.3",
+ "parseurl": "^1.3.3",
+ "send": "^1.2.0"
+ },
+ "engines": {
+ "node": ">= 18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/setprototypeof": {
+ "version": "1.2.0",
+ "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+ "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+ "license": "ISC"
+ },
+ "node_modules/side-channel": {
+ "version": "1.1.0",
+ "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz",
+ "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
+ "license": "MIT",
+ "dependencies": {
+ "es-errors": "^1.3.0",
+ "object-inspect": "^1.13.3",
+ "side-channel-list": "^1.0.0",
+ "side-channel-map": "^1.0.1",
+ "side-channel-weakmap": "^1.0.2"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/side-channel-list": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.1.tgz",
+ "integrity": "sha512-mjn/0bi/oUURjc5Xl7IaWi/OJJJumuoJFQJfDDyO46+hBWsfaVM65TBHq2eoZBhzl9EchxOijpkbRC8SVBQU0w==",
+ "license": "MIT",
+ "dependencies": {
+ "es-errors": "^1.3.0",
+ "object-inspect": "^1.13.4"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/side-channel-map": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
+ "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bound": "^1.0.2",
+ "es-errors": "^1.3.0",
+ "get-intrinsic": "^1.2.5",
+ "object-inspect": "^1.13.3"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/side-channel-weakmap": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+ "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bound": "^1.0.2",
+ "es-errors": "^1.3.0",
+ "get-intrinsic": "^1.2.5",
+ "object-inspect": "^1.13.3",
+ "side-channel-map": "^1.0.1"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/socket.io": {
+ "version": "4.8.3",
+ "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.8.3.tgz",
+ "integrity": "sha512-2Dd78bqzzjE6KPkD5fHZmDAKRNe3J15q+YHDrIsy9WEkqttc7GY+kT9OBLSMaPbQaEd0x1BjcmtMtXkfpc+T5A==",
+ "license": "MIT",
+ "dependencies": {
+ "accepts": "~1.3.4",
+ "base64id": "~2.0.0",
+ "cors": "~2.8.5",
+ "debug": "~4.4.1",
+ "engine.io": "~6.6.0",
+ "socket.io-adapter": "~2.5.2",
+ "socket.io-parser": "~4.2.4"
+ },
+ "engines": {
+ "node": ">=10.2.0"
+ }
+ },
+ "node_modules/socket.io-adapter": {
+ "version": "2.5.6",
+ "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.5.6.tgz",
+ "integrity": "sha512-DkkO/dz7MGln0dHn5bmN3pPy+JmywNICWrJqVWiVOyvXjWQFIv9c2h24JrQLLFJ2aQVQf/Cvl1vblnd4r2apLQ==",
+ "license": "MIT",
+ "dependencies": {
+ "debug": "~4.4.1",
+ "ws": "~8.18.3"
+ }
+ },
+ "node_modules/socket.io-parser": {
+ "version": "4.2.6",
+ "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.6.tgz",
+ "integrity": "sha512-asJqbVBDsBCJx0pTqw3WfesSY0iRX+2xzWEWzrpcH7L6fLzrhyF8WPI8UaeM4YCuDfpwA/cgsdugMsmtz8EJeg==",
+ "license": "MIT",
+ "dependencies": {
+ "@socket.io/component-emitter": "~3.1.0",
+ "debug": "~4.4.1"
+ },
+ "engines": {
+ "node": ">=10.0.0"
+ }
+ },
+ "node_modules/socket.io/node_modules/accepts": {
+ "version": "1.3.8",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+ "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-types": "~2.1.34",
+ "negotiator": "0.6.3"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/socket.io/node_modules/mime-db": {
+ "version": "1.52.0",
+ "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+ "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/socket.io/node_modules/mime-types": {
+ "version": "2.1.35",
+ "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+ "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-db": "1.52.0"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/socket.io/node_modules/negotiator": {
+ "version": "0.6.3",
+ "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
+ "integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/statuses": {
+ "version": "2.0.2",
+ "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
+ "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/toidentifier": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+ "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=0.6"
+ }
+ },
+ "node_modules/type-is": {
+ "version": "2.1.0",
+ "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.1.0.tgz",
+ "integrity": "sha512-faYHw0anBbc/kWF3zFTEnxSFOAGUX9GFbOBthvDdLsIlEoWOFOtS0zgCiQYwIskL9iGXZL3kAXD8OoZ4GmMATA==",
+ "license": "MIT",
+ "dependencies": {
+ "content-type": "^2.0.0",
+ "media-typer": "^1.1.0",
+ "mime-types": "^3.0.0"
+ },
+ "engines": {
+ "node": ">= 18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/type-is/node_modules/content-type": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/content-type/-/content-type-2.0.0.tgz",
+ "integrity": "sha512-j/O/d7GcZCyNl7/hwZAb606rzqkyvaDctLmckbxLzHvFBzTJHuGEdodATcP3yIRoDrLHkIATJuvzbFlp/ki2cQ==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=18"
+ },
+ "funding": {
+ "type": "opencollective",
+ "url": "https://opencollective.com/express"
+ }
+ },
+ "node_modules/undici-types": {
+ "version": "7.21.0",
+ "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.21.0.tgz",
+ "integrity": "sha512-w9IMgQrz4O0YN1LtB7K5P63vhlIOvC7opSmouCJ+ZywlPAlO9gIkJ+otk6LvGpAs2wg4econaCz3TvQ9xPoyuQ==",
+ "license": "MIT"
+ },
+ "node_modules/unpipe": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+ "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/vary": {
+ "version": "1.1.2",
+ "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+ "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/wrappy": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+ "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+ "license": "ISC"
+ },
+ "node_modules/ws": {
+ "version": "8.18.3",
+ "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",
+ "integrity": "sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=10.0.0"
+ },
+ "peerDependencies": {
+ "bufferutil": "^4.0.1",
+ "utf-8-validate": ">=5.0.2"
+ },
+ "peerDependenciesMeta": {
+ "bufferutil": {
+ "optional": true
+ },
+ "utf-8-validate": {
+ "optional": true
+ }
+ }
+ }
+ }
+}
diff --git a/socketio-draw-board/package.json b/socketio-draw-board/package.json
new file mode 100644
index 0000000..69b7501
--- /dev/null
+++ b/socketio-draw-board/package.json
@@ -0,0 +1,14 @@
+{
+ "name": "socketio-draw-board",
+ "version": "1.0.0",
+ "private": true,
+ "type": "module",
+ "scripts": {
+ "start": "node server.js",
+ "check": "node --check server.js"
+ },
+ "dependencies": {
+ "express": "^5.2.1",
+ "socket.io": "^4.8.1"
+ }
+}
diff --git a/socketio-draw-board/public/app.js b/socketio-draw-board/public/app.js
new file mode 100644
index 0000000..56e3a23
--- /dev/null
+++ b/socketio-draw-board/public/app.js
@@ -0,0 +1,146 @@
+const socket = io();
+
+const canvas = document.querySelector("#board");
+const ctx = canvas.getContext("2d");
+const colorInput = document.querySelector("#color");
+const sizeInput = document.querySelector("#size");
+const sizeValue = document.querySelector("#sizeValue");
+const clearButton = document.querySelector("#clear");
+const downloadButton = document.querySelector("#download");
+const roomInput = document.querySelector("#room");
+const roomForm = document.querySelector("#roomForm");
+const onlineCount = document.querySelector("#onlineCount");
+
+const params = new URLSearchParams(window.location.search);
+const room = params.get("room") || "main";
+let isDrawing = false;
+let lastPoint = null;
+
+roomInput.value = room;
+
+function resizeCanvas() {
+ const snapshot = document.createElement("canvas");
+ snapshot.width = canvas.width;
+ snapshot.height = canvas.height;
+ snapshot.getContext("2d").drawImage(canvas, 0, 0);
+
+ const rect = canvas.getBoundingClientRect();
+ const ratio = window.devicePixelRatio || 1;
+ canvas.width = Math.floor(rect.width * ratio);
+ canvas.height = Math.floor(rect.height * ratio);
+ ctx.setTransform(ratio, 0, 0, ratio, 0, 0);
+ ctx.lineCap = "round";
+ ctx.lineJoin = "round";
+ ctx.fillStyle = "#fffaf3";
+ ctx.fillRect(0, 0, rect.width, rect.height);
+
+ if (snapshot.width && snapshot.height) {
+ ctx.drawImage(snapshot, 0, 0, rect.width, rect.height);
+ }
+}
+
+function getPoint(event) {
+ const rect = canvas.getBoundingClientRect();
+ const source = event.touches?.[0] || event;
+
+ return {
+ x: source.clientX - rect.left,
+ y: source.clientY - rect.top,
+ };
+}
+
+function drawSegment(segment) {
+ ctx.strokeStyle = segment.color;
+ ctx.lineWidth = segment.size;
+ ctx.beginPath();
+ ctx.moveTo(segment.from.x, segment.from.y);
+ ctx.lineTo(segment.to.x, segment.to.y);
+ ctx.stroke();
+}
+
+function startDrawing(event) {
+ event.preventDefault();
+ isDrawing = true;
+ lastPoint = getPoint(event);
+}
+
+function draw(event) {
+ if (!isDrawing || !lastPoint) {
+ return;
+ }
+
+ event.preventDefault();
+ const nextPoint = getPoint(event);
+ const segment = {
+ room,
+ from: lastPoint,
+ to: nextPoint,
+ color: colorInput.value,
+ size: Number(sizeInput.value),
+ };
+
+ drawSegment(segment);
+ socket.emit("draw", segment);
+ lastPoint = nextPoint;
+}
+
+function stopDrawing() {
+ isDrawing = false;
+ lastPoint = null;
+}
+
+function clearBoard() {
+ const rect = canvas.getBoundingClientRect();
+ ctx.fillStyle = "#fffaf3";
+ ctx.fillRect(0, 0, rect.width, rect.height);
+}
+
+function downloadBoard() {
+ const exportCanvas = document.createElement("canvas");
+ exportCanvas.width = canvas.width;
+ exportCanvas.height = canvas.height;
+ const exportCtx = exportCanvas.getContext("2d");
+
+ exportCtx.fillStyle = "#ffffff";
+ exportCtx.fillRect(0, 0, exportCanvas.width, exportCanvas.height);
+ exportCtx.drawImage(canvas, 0, 0);
+
+ const link = document.createElement("a");
+ link.href = exportCanvas.toDataURL("image/jpeg", 0.92);
+ link.download = "draw-board.jpg";
+ link.click();
+}
+
+canvas.addEventListener("mousedown", startDrawing);
+canvas.addEventListener("mousemove", draw);
+window.addEventListener("mouseup", stopDrawing);
+canvas.addEventListener("touchstart", startDrawing, { passive: false });
+canvas.addEventListener("touchmove", draw, { passive: false });
+window.addEventListener("touchend", stopDrawing);
+
+sizeInput.addEventListener("input", () => {
+ sizeValue.textContent = `${sizeInput.value}px`;
+});
+
+clearButton.addEventListener("click", () => {
+ clearBoard();
+ socket.emit("clear", room);
+});
+
+downloadButton.addEventListener("click", downloadBoard);
+
+roomForm.addEventListener("submit", (event) => {
+ event.preventDefault();
+ const nextRoom = roomInput.value.trim() || "main";
+ window.location.href = `/?room=${encodeURIComponent(nextRoom)}`;
+});
+
+socket.emit("join-room", room);
+socket.on("draw", drawSegment);
+socket.on("clear", clearBoard);
+socket.on("presence", (count) => {
+ onlineCount.textContent = `${count} online`;
+});
+
+window.addEventListener("resize", resizeCanvas);
+resizeCanvas();
diff --git a/socketio-draw-board/public/index.html b/socketio-draw-board/public/index.html
new file mode 100644
index 0000000..5bbbf32
--- /dev/null
+++ b/socketio-draw-board/public/index.html
@@ -0,0 +1,46 @@
+
+
+
+
+
+ Socket.IO Collaborative Draw Board
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/socketio-draw-board/public/styles.css b/socketio-draw-board/public/styles.css
new file mode 100644
index 0000000..d266517
--- /dev/null
+++ b/socketio-draw-board/public/styles.css
@@ -0,0 +1,187 @@
+* {
+ box-sizing: border-box;
+}
+
+body {
+ min-height: 100vh;
+ margin: 0;
+ color: #211915;
+ background: #f2efe8;
+ font-family:
+ Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
+ "Segoe UI", sans-serif;
+}
+
+button,
+input {
+ font: inherit;
+}
+
+.app {
+ display: grid;
+ grid-template-rows: auto auto minmax(0, 1fr);
+ gap: 18px;
+ width: min(1180px, calc(100vw - 28px));
+ min-height: 100vh;
+ margin: 0 auto;
+ padding: 32px 0;
+}
+
+.toolbar {
+ display: grid;
+ grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
+ gap: 24px;
+ align-items: end;
+}
+
+.eyebrow {
+ margin: 0 0 10px;
+ color: #1f7a5b;
+ font-size: 0.82rem;
+ font-weight: 800;
+ letter-spacing: 0;
+ text-transform: uppercase;
+}
+
+h1 {
+ max-width: 720px;
+ margin: 0;
+ font-size: clamp(2.1rem, 5vw, 4.8rem);
+ line-height: 0.98;
+ letter-spacing: 0;
+}
+
+.room,
+.controls {
+ display: flex;
+ align-items: center;
+ gap: 10px;
+}
+
+.room {
+ justify-content: flex-end;
+}
+
+.room label,
+.controls label {
+ display: grid;
+ gap: 6px;
+ color: #62584f;
+ font-size: 0.82rem;
+ font-weight: 800;
+}
+
+.room input {
+ width: min(260px, 45vw);
+ height: 44px;
+ padding: 0 12px;
+ border: 1px solid #d8cec0;
+ border-radius: 6px;
+ background: #fffaf3;
+}
+
+.controls {
+ min-height: 76px;
+ padding: 12px;
+ border: 1px solid #ded3c5;
+ border-radius: 8px;
+ background: #fffaf3;
+ box-shadow: 0 14px 34px rgb(47 35 23 / 8%);
+}
+
+input[type="color"] {
+ width: 52px;
+ height: 36px;
+ padding: 3px;
+ border: 1px solid #d8cec0;
+ border-radius: 6px;
+ background: white;
+}
+
+input[type="range"] {
+ width: 180px;
+}
+
+button {
+ min-height: 42px;
+ padding: 0 14px;
+ border: 1px solid #1f7a5b;
+ border-radius: 6px;
+ color: white;
+ background: #1f7a5b;
+ cursor: pointer;
+ font-weight: 800;
+}
+
+button#clear {
+ color: #2b2118;
+ border-color: #d8cec0;
+ background: #efe4d4;
+}
+
+.presence {
+ margin-left: auto;
+ color: #1f7a5b;
+ font-weight: 800;
+}
+
+.canvas-wrap {
+ min-height: 480px;
+ border: 1px solid #ded3c5;
+ border-radius: 8px;
+ overflow: hidden;
+ background: #fffaf3;
+ box-shadow: 0 24px 50px rgb(47 35 23 / 12%);
+}
+
+canvas {
+ display: block;
+ width: 100%;
+ height: 100%;
+ min-height: 480px;
+ touch-action: none;
+ cursor: crosshair;
+}
+
+@media (max-width: 820px) {
+ .toolbar {
+ grid-template-columns: 1fr;
+ }
+
+ .room {
+ justify-content: flex-start;
+ }
+
+ .controls {
+ flex-wrap: wrap;
+ }
+
+ .presence {
+ margin-left: 0;
+ }
+}
+
+@media (max-width: 560px) {
+ .app {
+ width: min(100vw - 18px, 1180px);
+ padding: 24px 0;
+ }
+
+ h1 {
+ font-size: 2.2rem;
+ }
+
+ .room,
+ .room input,
+ .room button {
+ width: 100%;
+ }
+
+ .room {
+ align-items: stretch;
+ }
+
+ input[type="range"] {
+ width: 140px;
+ }
+}
diff --git a/socketio-draw-board/server.js b/socketio-draw-board/server.js
new file mode 100644
index 0000000..7abb3fb
--- /dev/null
+++ b/socketio-draw-board/server.js
@@ -0,0 +1,60 @@
+import express from "express";
+import { createServer } from "node:http";
+import { fileURLToPath } from "node:url";
+import { dirname, join } from "node:path";
+import { Server } from "socket.io";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const app = express();
+const server = createServer(app);
+const io = new Server(server);
+const port = Number(process.env.PORT || 3000);
+const roomMembers = new Map();
+
+app.use(express.static(join(__dirname, "public")));
+
+function updatePresence(room) {
+ const size = roomMembers.get(room)?.size ?? 0;
+ io.to(room).emit("presence", size);
+}
+
+io.on("connection", (socket) => {
+ let activeRoom = "main";
+
+ socket.on("join-room", (roomName) => {
+ activeRoom = String(roomName || "main").slice(0, 64);
+ socket.join(activeRoom);
+
+ if (!roomMembers.has(activeRoom)) {
+ roomMembers.set(activeRoom, new Set());
+ }
+
+ roomMembers.get(activeRoom).add(socket.id);
+ updatePresence(activeRoom);
+ });
+
+ socket.on("draw", (segment) => {
+ socket.to(segment.room).emit("draw", segment);
+ });
+
+ socket.on("clear", (room) => {
+ socket.to(room).emit("clear");
+ });
+
+ socket.on("disconnect", () => {
+ const members = roomMembers.get(activeRoom);
+
+ if (members) {
+ members.delete(socket.id);
+ if (members.size === 0) {
+ roomMembers.delete(activeRoom);
+ } else {
+ updatePresence(activeRoom);
+ }
+ }
+ });
+});
+
+server.listen(port, () => {
+ console.log(`Socket.IO draw board running on port ${port}`);
+});