export function isPresent(val: any) {
  return val !== undefined && val !== null;
}

export function base64Encode(str: string) {
  return Buffer.from(str).toString('base64');
}

export function encodeObjectForUrlParams(data: any): string {
  if (!data) {
    return '';
  }

  return Object.keys(data)
    .map((key) => {
      const snakeKey = camelToSnakeCase(key);

      return [snakeKey, data[key]].map(encodeURIComponent).join('=');
    })
    .join('&');
}

export function camelToSnakeCase(str: string): string {
  return str.replace(/([A-Z])/g, function($1) {
    return '_' + $1.toLowerCase();
  });
}