public async Task<ActionResult<VocabularyCategory>> PostVocabularyCategory(VocabularyCategory vocabularyCategory)
        {
            _context.VocabularyCategories.Add(vocabularyCategory);
            await _context.SaveChangesAsync();

            return CreatedAtAction("GetVocabularyCategory", new { id = vocabularyCategory.Id }, vocabularyCategory);
        }
        public async Task<IActionResult> PutVocabularyCategory(Guid id, VocabularyCategory vocabularyCategory)
        {
            if (id != vocabularyCategory.Id)
            {
                return BadRequest();
            }

            _context.Entry(vocabularyCategory).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!VocabularyCategoryExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return NoContent();
        }