使用 fetch 发送 HTTP 请求

const response = await fetch("https://bun.com");
const html = await response.text(); // HTML 字符串

const response = await fetch("https://bun.com/api", {
  method: "POST",
  body: JSON.stringify({ message: "Hello from Bun!" }),
  headers: { "Content-Type": "application/json" },
});

const body = await response.json();