如何在angular (typescript)中从浏览器获取客户端ip地址

function getIP() {
  return new Promise<string>((resolve, reject) => {
    const pc = new RTCPeerConnection();
    pc.createDataChannel("");

    pc.createOffer()
      .then(sdp => {
        pc.setLocalDescription(sdp);
      })
      .catch(error => {
        reject(error);
      });

    pc.onicecandidate = event => {
      if (event && event.candidate && event.candidate.candidate) {
        const ip = event.candidate.candidate.split(" ")[4];
        resolve(ip);
        pc.onicecandidate = null;
      }
    };
  });
}

getIP()
  .then(ip => {
    console.log("客户端IP地址：", ip);
  })
  .catch(error => {
    console.error("获取IP地址失败：", error);
  });