rgb-to-hex converter fully implemented

backend/.prettierignore

@@ -0,0 +1,3 @@
+# Ignore artifacts:
+build
+coverage

backend/.prettierrc

@@ -0,0 +1 @@
+{}

backend/package-lock.json

@@ -19,6 +19,7 @@
       },
       "devDependencies": {
         "@types/node": "^22.13.4",
+        "prettier": "3.5.1",
         "ts-node": "^10.9.2",
         "typescript": "^5.7.3"
       }
@@ -758,6 +759,22 @@
       "integrity": "sha512-e906FRY0+tV27iq4juKzSYPbUj2do2X2JX4EzSca1631EB2QJQUqGbDuERal7LCtOpxl6x3+nvo9NPZcmjkiFA==",
       "license": "MIT"
     },
+    "node_modules/prettier": {
+      "version": "3.5.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.5.1.tgz",
+      "integrity": "sha512-hPpFQvHwL3Qv5AdRvBFMhnKo4tYxp0ReXiPn2bxkiohEX6mBeBwEpBSQTkD458RaaDKQMYSp4hX4UtfUTA5wDw==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
     "node_modules/process-warning": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/process-warning/-/process-warning-4.0.1.tgz",

backend/package.json

@@ -22,6 +22,7 @@
   },
   "devDependencies": {
     "@types/node": "^22.13.4",
+    "prettier": "3.5.1",
     "ts-node": "^10.9.2",
     "typescript": "^5.7.3"
   }

backend/server.ts

@@ -1,15 +1,17 @@
 import Fastify from "fastify";
 import cors from "@fastify/cors";
-import multipart from '@fastify/multipart';
+import multipart from "@fastify/multipart";
 import { libreConvert } from "./src/routes/libreconvert.route";
+import { colorConvert } from "./src/routes/colorconvert.route";
 
 const app = Fastify({ logger: true });
 
 app.register(cors, { origin: "*" });
 app.register(multipart);
 app.register(libreConvert);
+app.register(colorConvert);
 
 const PORT = process.env.PORT || 4000;
 app.listen({ port: Number(PORT), host: "0.0.0.0" }, () => {
-    console.log(`🚀Fastify is live on http://localhost:${PORT}`);
-});
+  console.log(`🚀Fastify is live on http://localhost:${PORT}`);
+});

backend/src/routes/colorconvert.route.ts

@@ -0,0 +1,29 @@
+import { FastifyInstance, FastifyReply, FastifyRequest } from "fastify";
+
+interface RequestBody {
+  red: string;
+  green: string;
+  blue: string;
+}
+
+export async function colorConvert(app: FastifyInstance) {
+  app.post(
+    "/api/color-convert",
+    async (
+      request: FastifyRequest<{ Body: RequestBody }>,
+      reply: FastifyReply,
+    ) => {
+      try {
+        const data = request.body;
+        if (!data) {
+          return reply.status(400).send({ error: "No RGB declared!" });
+        }
+        const hex = (`#${(+data.red).toString(16).padStart(2, "0")}${(+data.green).toString(16).padStart(2, "0")}${(+data.blue).toString(16).padStart(2, "0")}`).toUpperCase();
+        reply.header("Content-Type", "application/json").send({ hex: hex });
+      } catch (error) {
+        console.error("Convert error:", error);
+        reply.status(500).send({ error: "Error while converting!" });
+      }
+    },
+  );
+}

backend/src/routes/libreconvert.route.ts

@@ -5,26 +5,29 @@ import { promisify } from "util";
 const libreConvertAsync = promisify(libre.convert);
 
 export async function libreConvert(app: FastifyInstance) {
-  app.post("/api/libre-convert", async (request: FastifyRequest, reply: FastifyReply) => {
-    try {
-      const data = await request.file();
-      if (!data) {
-        return reply.status(400).send({ error: "No file uploaded!" });
-      }
+  app.post(
+    "/api/libre-convert",
+    async (request: FastifyRequest, reply: FastifyReply) => {
+      try {
+        const data = await request.file();
+        if (!data) {
+          return reply.status(400).send({ error: "No file uploaded!" });
+        }
 
-      const ext = ".pdf";
-      const format = ext.substring(1);
-      const fileBuffer = await data.toBuffer();
+        const ext = ".pdf";
+        const format = ext.substring(1);
+        const fileBuffer = await data.toBuffer();
 
-      const pdfBuffer = await libreConvertAsync(fileBuffer, ext, undefined);
+        const pdfBuffer = await libreConvertAsync(fileBuffer, ext, undefined);
 
-      reply
+        reply
           .header("Content-Type", "application/" + format)
           .header("Content-Disposition", "attachment; filename=converted" + ext)
           .send(pdfBuffer);
-    } catch (error) {
-      console.error("Convert error:", error);
-      reply.status(500).send({ error: "Error while converting!" });
-    }
-  });
+      } catch (error) {
+        console.error("Convert error:", error);
+        reply.status(500).send({ error: "Error while converting!" });
+      }
+    },
+  );
 }