public async Task <IActionResult> GetArticleByArticleId(Guid articleId, string fields,
[FromHeader(Name = "Accept")] string mediaType)//获取媒体类型的数值
{
//解析媒体资源类型
if (!MediaTypeHeaderValue.TryParse(mediaType, out MediaTypeHeaderValue parseMediaType))
{
return(BadRequest());
}
//确认是否存在该字段
if (!_propertyCheckService.TypeHasProperties <ArticleDetailsViewModel>(fields))
{
return(BadRequest());
}
var article = await _articleService.GetArticleDetailsByArticleIdAsync(articleId);
if (article.Id == Guid.Empty)
{
return(NotFound());
}
//expandoObject实质上是一个字典
var result = article.ShapeData(fields) as IDictionary <string, object>;
//判断媒体类型并返回不同的结果
if (parseMediaType.MediaType == "application/vnd.company.hateoas+json")
{
var link = CreateLinksForArticle(articleId, fields);
result.Add("links", link);
return(Ok(result));
}
return(Ok(result));
}
public async Task <ActionResult> Get(int autoId, [FromQuery] GasLogResourceParameters resourceParameters)
{
//var userId = User.Claims.FirstOrDefault(c => c.Type == "sub")?.Value;
//if (userId == null)
//{
// var errorMsg = "Cannot get author information with null user id";
// Log.Error(errorMsg);
// return BadRequest(errorMsg);
//}
//var user = _userManager.GetEntities().FirstOrDefault(u => u.Id == Guid.Parse(userId));
//if (user == null)
//{
// return OK(new List<ApiGasLog>());
//}
if (!string.IsNullOrEmpty(resourceParameters.OrderBy))
{
if (!_propertyMappingService.ValidMappingExistsFor <ApiGasLog, GasLog>(resourceParameters.OrderBy))
{
return(BadRequest(new ApiBadRequestResponse(_propertyMappingService.ProcessingResult.GetWholeMessage())));
}
var mapDictionary = _propertyMappingService.GetPropertyMapping <ApiGasLog, GasLog>();
resourceParameters.OrderBy = resourceParameters.OrderBy.GetMappedSortClause(mapDictionary);
}
if (!string.IsNullOrEmpty(resourceParameters.Fields))
{
if (!_propertyCheckService.TypeHasProperties <ApiGasLog>(resourceParameters.Fields))
{
return(BadRequest(new ApiBadRequestResponse(_propertyMappingService.ProcessingResult.GetWholeMessage())));
}
}
var gasLogs = await _gasLogManager.GetGasLogsAsync(autoId, resourceParameters);
if (!gasLogs.Any())
{
return(NotFound());
}
return(Ok(gasLogs));
}
[HttpHead] //httphead返回body,但状态码也是200
//public async Task<ActionResult<IEnumerable<CompanyDto>>> GetCompanies(
public async Task <IActionResult> GetCompanies([FromQuery] CompanyParameters parameters)
//IActionResult可以用具体的实现类ActionResult<T>,返回的类型明确
{
//return 400
if (!_propertyMappingService.ValidMappingExistsFor <CompanyDto, Company>(parameters.OrderBy))
{
return(BadRequest());
}
//return 400
if (!_propertyCheckService.TypeHasProperties <CompanyDto>(parameters.Fields))
{
return(BadRequest());
}
var companies = await _companyRepository.GetCompaniesAsync(parameters);
//var previousLink = companies.HasPrevious
// ? CreateCompaniesRessourceUri(parameters, ResourceUriType.PreviousPage)
// : null;
//var nextLink = companies.HasNext
// ? CreateCompaniesRessourceUri(parameters, ResourceUriType.NextPage)
// : null;
var paginationMetaData = new
{
totalCount = companies.TotalCount,
pageSize = companies.PageSize,
currentPage = companies.CurrentPage,
totalPages = companies.TotalPages,
//previousPageLink =previousLink,
//nextPageLink =nextLink
};
Response.Headers.Add("X-Pagination", JsonSerializer.Serialize(paginationMetaData,
new JsonSerializerOptions
{
Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping //不 转义
}));
//var companiesDto = new List<CompanyDto>();
//replaced by Linq
//foreach (var company in companies)
//{
// companiesDto.Add(new CompanyDto
// {
// Id=company.Id,
// Name = company.Name
// });
//}
//companies.ToList().ForEach(company=>companiesDto.Add(new CompanyDto
//{
// Id = company.Id,
// CompanyName = company.Name
//}));
//Auto mapper
var companiesDtos = _mapper.Map <IEnumerable <CompanyDto> >(companies);
var shapedData = companiesDtos.ShapeData(parameters.Fields);
// return new JsonResult(companies); //return Json
var links = CreateLinksForCompany(parameters, companies.HasPrevious,
companies.HasNext);
//对于集合资源，返回对象有这些属性
//{value:[xxx]集合,links
var shapedCompaniesWithLinks = shapedData.Select(c =>
{
var companyDict = c as IDictionary <string, object>;
var companyLinks = CreateLinksForCompany(
(Guid)companyDict["Id"],
null);
companyDict.Add("links", companyLinks);
return(companyDict);
});
var linkedCollectionResource = new
{
value = shapedCompaniesWithLinks,
paging = links
};
return(Ok(linkedCollectionResource));
}
