GetAll.cs

public async Task<IActionResult> GetAll([FromQuery]PaginationQuery paginationQuery)
{
    var pagination = _mapper.Map<PaginationFilter>(paginationQuery);
    var posts = await _postService.GetPostsAsync(pagination);
    var postsResponse = _mapper.Map<List<PostResponse>>(posts);

    if (pagination == null || pagination.PageNumber < 1 || pagination.PageSize < 1)
    {
        return Ok(new PagedResponse<PostResponse>(postsResponse));
    }

    var paginationResponse = PaginationHelpers.CreatePaginatedResponse(_uriService, pagination, postsResponse);
    return Ok(paginationResponse);
}