public static async Task Handler(HttpContext context)
{
context.Response.StatusCode = 500;
context.Response.ContentType = "application/json";
var exceptionHandlerPathFeature =
context.Features.Get <IExceptionHandlerPathFeature>();
switch (exceptionHandlerPathFeature.Error)
{
case null:
return;
case SunViewException sunViewException:
await context.Response.WriteAsync(SunJson.Serialize(sunViewException.ErrorView));
break;
default:
ErrorView errorView = ErrorView.ServerError(exceptionHandlerPathFeature.Error);
await context.Response.WriteAsync(SunJson.Serialize(errorView));
break;
}
}
public async Task <IActionResult> CacheContentAsync <T>(
ComponentServerCached component,
IEnumerable <int> categoryIds,
Func <Task <T> > dataLoader,
int?page = null)
{
if (!cachePolicy.CanCache(component, page))
{
return(Json(await dataLoader()));
}
var key = keyGenerator.ContentGenerateKey(component.Name, categoryIds, page);
string json;
if (!string.IsNullOrEmpty(json = contentCache.GetContent(key)))
{
return(JsonString(json));
}
var content = await dataLoader();
json = SunJson.Serialize(content);
contentCache.CacheContent(key, json);
return(JsonString(json));
}
protected async Task <IActionResult> CacheContentAsync <T>(
CategoryCached category,
string key,
Func <Task <T> > dataLoader,
int?page)
{
if (!cachePolicy.CanCache(category, new RequestOptions()
{
PageNumber = page
}))
{
return(Json(await dataLoader()));
}
string json;
if (!string.IsNullOrEmpty(json = contentCache.GetContent(key)))
{
return(JsonString(json));
}
var content = await dataLoader();
json = SunJson.Serialize(content);
contentCache.CacheContent(key, json);
return(JsonString(json));
}
public async Task Invoke(HttpContext context)
{
try
{
await next(context);
}
catch (SunViewException e)
{
logger.LogError(e.ToString());
context.Response.StatusCode = 500;
await context.Response.WriteAsync(SunJson.Serialize(e.ErrorView ?? ErrorView.ServerError()));
}
catch (Exception e)
{
logger.LogError(e.ToString());
context.Response.StatusCode = 500;
ErrorView errorView = ErrorView.ServerError(e);
await context.Response.WriteAsync(SunJson.Serialize(errorView));
}
}
public bool CacheContent(string key, object content, out string convertedContent)
{
convertedContent = SunJson.Serialize(content);
return(CacheContent(key, convertedContent));
}
