utils/getOAuthUrl.ts

export function getGoogleOAuthURL() {
  const rootUrl = "https://accounts.google.com/o/oauth2/v2/auth";

  const options = {
    redirect_uri: `${process.env.NEXT_PUBLIC_APP_URL}/oauth/google`,
    client_id: `${process.env.NEXT_PUBLIC_GOOGLE_CLIENT_ID}`,
    access_type: "offline",
    response_type: "code",
    prompt: "consent",
    scope: [
      "https://www.googleapis.com/auth/userinfo.profile",
      "https://www.googleapis.com/auth/userinfo.email",
    ].join(" "),
  };

  const qs = new URLSearchParams(options);

  return `${rootUrl}?${qs.toString()}`;
}

export function getGithubOAuthURL() {
  const rootUrl = "https://github.com/login/oauth/authorize";

  const options = {
    client_id: `${process.env.NEXT_PUBLIC_GITHUB_CLIENT_ID}`,
    redirect_uri: `${process.env.NEXT_PUBLIC_APP_URL}/oauth/github`,
    path: "/",
    scope: "user:email",
  };

  const qs = new URLSearchParams(options);

  return `${rootUrl}?${qs.toString()}`;
}