class RestApiService < ApplicationService
  private

  def base_url
    raise NotImplementedError
  end

  def headers
    raise NotImplementedError
  end

  def endpoint_url(path)
    "#{base_url}/#{path.gsub(/^\//, '')}"
  end

  def get(path, params = {})
    res = Faraday.get endpoint_url(path), params, headers
    # TODO handle unsuccessful responses with no valid JSON body
    JSON.parse(res.body)
  end

  def post(path, payload)
    res = Faraday.post endpoint_url(path), payload.to_json, headers
    # TODO handle unsuccessful responses with no valid JSON body
    JSON.parse(res.body)
  end
end