public async Task Invoke(HttpContext httpContext, IValidatorValueInvalidator validatorValueInvalidator)
{
// Use method injection for IValidatorValueInvalidator, as it's a scoped service. Only singleton
// services can be injected via constructor injection when working with middleware
_validatorValueInvalidator = validatorValueInvalidator
?? throw new ArgumentNullException(nameof(validatorValueInvalidator));
var hasHttpCacheIgnoreAttribute = httpContext.GetEndpoint()?.Metadata
.Any(m => m is HttpCacheIgnoreAttribute);
if (hasHttpCacheIgnoreAttribute.HasValue && hasHttpCacheIgnoreAttribute.Value)
{
// continue with the next delegate in line
await _next.Invoke(httpContext);
return;
}
// check request ETag headers & dates
if (await GetOrHeadIndicatesResourceStillValid(httpContext))
{
// don't continue with the next delegate in line, a response (304) has been generated
return;
}
if (await PutOrPostIndicatesResourceHasChanged(httpContext))
{
// don't continue with the next delegate in line, a response (412) has been generated
return;
}
await HandleResponse(httpContext);
}
public StoreManipulationController(
IValidatorValueInvalidator validatorValueInvalidator,
IStoreKeyAccessor storeKeyAccessor)
{
_validatorValueInvalidator = validatorValueInvalidator
?? throw new ArgumentNullException(nameof(validatorValueInvalidator));
_storeKeyAccessor = storeKeyAccessor
?? throw new ArgumentNullException(nameof(storeKeyAccessor));
}
public async Task Invoke(HttpContext httpContext, IValidatorValueInvalidator validatorValueInvalidator)
{
// Use method injection for IValidatorValueInvalidator, as it's a scoped service. Only singleton
// services can be injected via constructor injection when working with middleware
_validatorValueInvalidator = validatorValueInvalidator
?? throw new ArgumentNullException(nameof(validatorValueInvalidator));
// check request ETag headers & dates
if (await GetOrHeadIndicatesResourceStillValid(httpContext))
{
return;
}
if (await PutOrPostIndicatesResourceHasChanged(httpContext))
{
return;
}
await HandleResponse(httpContext);
}
public async Task Invoke(HttpContext httpContext, IValidatorValueInvalidator validatorValueInvalidator)
{
var requestPath = httpContext.Request.Path.Value;
if (!string.IsNullOrWhiteSpace(requestPath))
{
var noCache = _excludedRouteModelOptions.Routes.Any(part =>
requestPath.Contains(part, StringComparison.InvariantCultureIgnoreCase));
if (noCache)
{
// Call the next middleware delegate in the pipeline
await _next.Invoke(httpContext);
return;
}
}
// Use method injection for IValidatorValueInvalidator, as it's a scoped service. Only singleton
// services can be injected via constructor injection when working with middleware
_validatorValueInvalidator = validatorValueInvalidator
?? throw new ArgumentNullException(nameof(validatorValueInvalidator));
// check request ETag headers & dates
if (await GetOrHeadIndicatesResourceStillValid(httpContext))
{
return;
}
// Let backend check precondition
//if (await PutOrPostIndicatesResourceHasChanged(httpContext))
//{
// return;
//}
await HandleResponse(httpContext);
}
