ezcontainer_example/lib/ezcontainer_railway/railway.ex

defmodule EzcontainerRailway.Railway do
  alias EzcontainerRailway.GraphqlClient
  def get_projects(token) do
    resp = GraphqlClient.query(
        """
        query {
            projects {
                edges {
                    node {
                        id
                        name
                    }
                }
            }
        }
        """,
        token: token
    ) |> format_response

    case resp do
      {:error, _} -> resp
      {:ok, data} -> {:ok, data["projects"]["edges"]}
    end
  end

  def create_service(container, token) when is_map(container) do
    GraphqlClient.query(
        """
        """,
      variables: container
    )
  end

  def create_project(token) do
    resp = GraphqlClient.query(
        """
        mutation {
            projectCreate(input: {}) {
                id
                name
            }
        }
        """,
      token: token
    )
    |> format_response

    case resp do
      {:error, _} -> resp
      {:ok, data} -> {:ok, data["projectCreate"]["id"]}
    end
  end

  def get_user_id(token) do
    {:ok, resp} = GraphqlClient.query(
        """
        query {
            me {
                id
            }
        }
        """,
      token: token
    )
    |> format_response

    {:ok, resp["me"]["id"]}
  end

  def has_errors?(resp) do
    has_errors_in_array?(resp["errors"])
  end

  defp format_response(resp) when is_map(resp) do
    if has_errors?(resp.body) do
      {:error, resp.body["errors"]}
    else
      {:ok, resp.body["data"]}
    end
  end

  defp has_errors_in_array?([_|_]), do: true
  defp has_errors_in_array?(_), do: false
end