sse => ws

package-lock.json

@@ -13,6 +13,7 @@
         "@fastify/sse": "^0.4.0",
         "@fastify/swagger": "^9.6.1",
         "@fastify/swagger-ui": "^5.2.3",
+        "@fastify/websocket": "^11.2.0",
         "dotenv": "^17.2.2",
         "fastify": "^5.6.2",
         "fastify-axios": "^1.3.0",
@@ -22,6 +23,7 @@
       },
       "devDependencies": {
         "@types/node": "^24.10.1",
+        "@types/ws": "^8.18.1",
         "tsx": "^4.20.6",
         "typescript": "^5.9.3"
       }
@@ -736,6 +738,27 @@
         "yaml": "^2.4.1"
       }
     },
+    "node_modules/@fastify/websocket": {
+      "version": "11.2.0",
+      "resolved": "https://registry.npmjs.org/@fastify/websocket/-/websocket-11.2.0.tgz",
+      "integrity": "sha512-3HrDPbAG1CzUCqnslgJxppvzaAZffieOVbLp1DAy1huCSynUWPifSvfdEDUR8HlJLp3sp1A36uOM2tJogADS8w==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fastify"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/fastify"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "duplexify": "^4.1.3",
+        "fastify-plugin": "^5.0.0",
+        "ws": "^8.16.0"
+      }
+    },
     "node_modules/@isaacs/balanced-match": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/@isaacs/balanced-match/-/balanced-match-4.0.1.tgz",
@@ -782,6 +805,16 @@
         "undici-types": "~7.16.0"
       }
     },
+    "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==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/abstract-logging": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/abstract-logging/-/abstract-logging-2.0.1.tgz",
@@ -990,6 +1023,27 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/duplexify": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-4.1.3.tgz",
+      "integrity": "sha512-M3BmBhwJRZsSx38lZyhE53Csddgzl5R7xGJNk7CVddZD6CcmwMCH8J+7AprIrQKH7TonKxaCjcv27Qmf+sQ+oA==",
+      "license": "MIT",
+      "dependencies": {
+        "end-of-stream": "^1.4.1",
+        "inherits": "^2.0.3",
+        "readable-stream": "^3.1.1",
+        "stream-shift": "^1.0.2"
+      }
+    },
+    "node_modules/end-of-stream": {
+      "version": "1.4.5",
+      "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.5.tgz",
+      "integrity": "sha512-ooEGc6HP26xXq/N+GCGOT0JKCLDGrq2bQUZrQ7gyrJiZANJ/8YDTxTpQBXGMn+WbIQXNVpyWymm7KYVICQnyOg==",
+      "license": "MIT",
+      "dependencies": {
+        "once": "^1.4.0"
+      }
+    },
     "node_modules/es-define-property": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
@@ -1630,6 +1684,15 @@
         "node": ">=14.0.0"
       }
     },
+    "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/openapi-types": {
       "version": "12.1.3",
       "resolved": "https://registry.npmjs.org/openapi-types/-/openapi-types-12.1.3.tgz",
@@ -1724,6 +1787,20 @@
       "integrity": "sha512-tYC1Q1hgyRuHgloV/YXs2w15unPVh8qfu/qCTfhTYamaw7fyhumKa2yGpdSo87vY32rIclj+4fWYQXUMs9EHvg==",
       "license": "MIT"
     },
+    "node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "license": "MIT",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/real-require": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/real-require/-/real-require-0.2.0.tgz",
@@ -1796,6 +1873,26 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
     "node_modules/safe-regex2": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/safe-regex2/-/safe-regex2-5.0.0.tgz",
@@ -1891,6 +1988,21 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/stream-shift": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/stream-shift/-/stream-shift-1.0.3.tgz",
+      "integrity": "sha512-76ORR0DO1o1hlKwTbi/DM3EXWGf3ZJYO8cXX5RJwnul2DEg2oyoZyjLNoQM8WsvZiFKCRfC1O0J7iCvie3RZmQ==",
+      "license": "MIT"
+    },
+    "node_modules/string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
     "node_modules/swagger-themes": {
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/swagger-themes/-/swagger-themes-1.4.3.tgz",
@@ -1968,6 +2080,39 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "license": "MIT"
+    },
+    "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": "8.19.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.19.0.tgz",
+      "integrity": "sha512-blAT2mjOEIi0ZzruJfIhb3nps74PRWTCz1IjglWEEpQl5XS/UNama6u2/rjFkDDouqr4L67ry+1aGIALViWjDg==",
+      "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
+        }
+      }
+    },
     "node_modules/yaml": {
       "version": "2.8.2",
       "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.8.2.tgz",

package.json

@@ -15,9 +15,9 @@
 	"dependencies": {
 		"@dpu/shared": "git+https://git.dariusbag.dev/DarDarBinks/dpu-shared.git",
 		"@fastify/cors": "^11.2.0",
-    "@fastify/sse": "^0.4.0",
 		"@fastify/swagger": "^9.6.1",
 		"@fastify/swagger-ui": "^5.2.3",
+		"@fastify/websocket": "^11.2.0",
 		"dotenv": "^17.2.2",
 		"fastify": "^5.6.2",
 		"fastify-axios": "^1.3.0",
@@ -27,6 +27,7 @@
 	},
 	"devDependencies": {
 		"@types/node": "^24.10.1",
+		"@types/ws": "^8.18.1",
 		"tsx": "^4.20.6",
 		"typescript": "^5.9.3"
 	}

src/index.ts

@@ -19,12 +19,12 @@ import { HomeAssistantService } from "./homeassistant/service.js";
 import { TidalClient } from "./tidal/client.js";
 import { TidalService } from "./tidal/service.js";
 import { tidalRoutes } from "./tidal/routes.js";
-import { sseRoutes } from "./sse/routes.js";
+import { sseRoutes } from "./websocket/routes.js";
 import { SseService } from "@dpu/shared";
 import { HomepageService } from "./homepage/service.js";
 import { homepageRoutes } from "./homepage/routes.js";
-import fastifySSE from "@fastify/sse";
 import fastifyCors from "@fastify/cors";
+import fastifyWebsocket from "@fastify/websocket";
 
 const fastify = Fastify().withTypeProvider<ZodTypeProvider>();
 
@@ -81,7 +81,7 @@ await fastify.register(fastifyAxios, {
 	},
 });
 
-await fastify.register(fastifySSE);
+await fastify.register(fastifyWebsocket);
 
 const haClient = new HomeAssistantClient(fastify.axios.homeassistant);
 const haService = new HomeAssistantService(haClient);

src/websocket/routes.ts

@@ -14,29 +14,26 @@ export async function sseRoutes(
 		"/dpu/events",
 		{
 			schema: {
-				description: "Register for SSE",
+				description: "Register for WebSocket events",
-				tags: ["sse"],
+				tags: ["ws"],
 				hide: true,
 			},
-			sse: true,
+			websocket: true,
 		},
-		async (_request, reply) => {
+		(socket, _request) => {
-			reply.sse.keepAlive();
-
 			const clientId = randomUUID();
 			const sendEvent = (event: SseEvent) => {
-				reply.sse.send({
+				if (socket.readyState === socket.OPEN) {
-					event: event.type,
+					socket.send(JSON.stringify({ event: event.type, data: event.data }));
-					data: JSON.stringify(event.data),
+				}
-				});
 			};
 
 			sseService.addClient({ id: clientId, send: sendEvent });
 
-			await reply.sse.send({ data: "Connected" });
+			socket.send(JSON.stringify({ event: "connected", data: "Connected" }));
 			logInfo(`Connection for client ${clientId} established`);
 
-			reply.sse.onClose(() => {
+			socket.on("close", () => {
 				sseService.removeClient(clientId);
 				logInfo(`Connection for client ${clientId} closed`);
 			});