[Help Needed] I need to know how to do HTTP POST requests specifically to Reddit :)

const authData = Buffer.from(`${clientId}:${clientSecret}`).toString(
    "base64"
  );
  const loginUrl = "https://www.reddit.com/api/v1/access_token";
  try {
    const response = await Request(loginUrl, {
      method: "POST",
      proxy,
      headers: {
        Authorization: `Basic ${authData}`,
        "Content-Type": "application/x-www-form-urlencoded",
      },
      body: {
        grant_type: "password",
        username: username,
        password: password,
      },
    });
const { access_token } = response.data;

const sendMessageUrl = "https://oauth.reddit.com/api/compose";
  let response: any = "";
  try {
    response = await Request(sendMessageUrl, {
      method: "POST",
      proxy,
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "Content-Type": "application/x-www-form-urlencoded",
        "User-Agent":
          "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/601.3.9 (KHTML, like Gecko) Version/9.0.2 Safari/601.3.9",
      },
      body: {
        api_type: "json",
        subject: subject,
        text: message,
        to: recipient,
      },
    });

https://www.reddit.com/dev/api/