const requiredEnvVars = [
  'PORT'
] as const;

const getEnvVar = (key: typeof requiredEnvVars[number]): string => {
  const value = process.env[key];
  if (!value) {
    throw new Error(`Missing ${key} env var`);
  }
  return value;
};

export interface Config {
  port: number;
}

export const configs: Config = {
  port: parseInt(getEnvVar('PORT'))
}