Log In

To log in to your account you could use this GraphQL mutation

mutation {
  account {
    login(
      input: {
        service: Password
        params: {
          password: "YourPassword"
          email: "Yourname@YourCompany.com"
        }
      }
    ) {
      id
    }
  }
}

..which will return this

{
  "data": {
    "account": {
      "login": {
        "id": "123456789123456789"
      }
    }
  }
}