public IActionResult Get()
{
var responseHeaders = Response.GetTypedHeaders();
responseHeaders.CacheControl = new CacheControlHeaderValue
{
SharedMaxAge = TimeSpan.FromSeconds(120)
};
responseHeaders.LastModified = DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(10));
var etag = new ETag("backend2", isWeak: false);
responseHeaders.ETag = etag.ToETagHeaderValue();
var conditionalDirective = Request.ReadConditionalReqeustDirective();
var status = conditionalDirective.ShouldPerformRequest(CurrentRepresentation.Existing(responseHeaders.LastModified.Value, etag)) ? StatusCodes.Status200OK : StatusCodes.Status304NotModified;
return BuildBackendResult(status);
}
public IActionResult Get()
{
var conditionalDirective = Request.ReadConditionalReqeustDirective();
var responseHeaders = Response.GetTypedHeaders();
var maxAge = TimeSpan.FromMinutes(10);
responseHeaders.CacheControl = new CacheControlHeaderValue
{
NoCache = true,
MaxAge = maxAge,
SharedMaxAge = TimeSpan.FromMinutes(3),
};
var lastModified = DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(30));
var etag = new ETag("backend1", isWeak: false);
responseHeaders.ETag = etag.ToETagHeaderValue();
responseHeaders.LastModified = lastModified;
responseHeaders.Expires = DateTimeOffset.UtcNow + maxAge;
Response.Headers[HeaderNames.Age] = 30.ToString();
var status = conditionalDirective.ShouldPerformRequest(CurrentRepresentation.Existing(lastModified, etag)) ? StatusCodes.Status200OK : StatusCodes.Status304NotModified;
return BuildBackendResult(status);
}