README.md

{
  profile: {
    soma: 20,
    menor: 1
  }
}

After getProperties

{
  'profile.soma': 20,
  'profile.menor': 1
}

index.js

const isObject = (value) => value && typeof value === 'object';

const isFilled = (value) => typeof value === 'string' && value.trim();

const reduceObject = (object, fn) => {
  const entries = Object.entries(object);
  const reduction = entries.reduce(
    (object, entry) => Object.assign({}, object,fn(...entry)),
    {}
  );
  return reduction;
};

const getProperties = (value, parent) => {
  const isValid = isObject(value) || isFilled(parent);

  if (!isValid) {
    throw new Error('Can\'t concat non-object values without parent.');
    return;
  }

  if (!isFilled(parent)) {
    return reduceObject(value, (property, value) => getProperties(value, property));
  }

  if (!isObject(value)) {
    return {
      [parent]: value
    };
  }

  return reduceObject(value, (property, value) => getProperties(value, `${parent}.${property}`));
};

export default getProperties;