server.js

const jsonServer = require("json-server");
const data = require("./db.json");
const Hangul = require("hangul-js");
const cors = require("cors");

const server = jsonServer.create();
const router = jsonServer.router("db.json");
const middlewares = jsonServer.defaults();

server.use(middlewares);
server.use(cors());

// Custom API endpoint
server.get("/search", (req, res) => {
  const { key } = req.query;
  if (!key) {
    return res.status(400).send("검색어를 입력해주세요.");
  }
  const initialsResult = data.products.filter((product) => {
    const words = product.split(" ");
    const initials = words.map((word) =>
      Hangul.disassemble(word)
        .map((char) => Hangul.assemble(char.charAt(0)))
        .join("")
    );

    const searchInitial = Hangul.disassemble(key)
      .map((char) => Hangul.assemble(char.charAt(0)))
      .join("");

    return initials.some((initial) => initial.startsWith(searchInitial));
  });

  const wordsResult = data.products.filter((product) => {
    return product.includes(key);
  });

  const result = [...new Set([...initialsResult, ...wordsResult])];

  if (result.length === 0) {
    return res.status(404).send("검색 결과가 없습니다.");
  }

  return res.json(result);
});

server.use(router);

server.listen(3000, () => {
  console.log("JSON Server is running");
});