UpstreamHost not working

[nrllhylmz]

Hi,

I upgraded ocelot. (18.0.0 -> 22.0.1)
"UpstreamHost" worked without problems in the old version but it doesn't work in the latest version.
Ocelot failed to match routes.
I deleted this feature. Routes matched. But i want to seperate host(UpstreamHost).

Thanks

[raman-m]

UpstreamHost not working

Why do you think so? Our unit & acceptance tests are green! 😉

---

I upgraded ocelot. (18.0.0 -> 22.0.1)

Maybe something wrong with the upgrade process...

---

Ocelot failed to match routes.

Wow! Please provide more details: ocelot.json file, logs with errors info, and etc.
Which routes? We don't see them! 😉

---

I deleted this feature. Routes matched. But i want to seperate host(UpstreamHost).

Sorry? What have you deleted and how?

[raman-m]

@nrllhylmz What's your full name?
Please upload complete solution to your GitHub account for verification and review by our team!

[nrllhylmz]

Ocelot 18.0.0 working but Ocelot 22.0.1 not working.
Deleted UpstreamHost. Working. But i want to seperate upstreamhost.

Warnings;

requestId: 0HN0MJFAEUU8F:00000009, previousRequestId: No PreviousRequestId, 
message: 'Error Code: UnableToFindDownstreamRouteError 
Message: Failed to match Route configuration for upstream path: /test/WeatherForecast, verb: GET.
errors found in ResponderMiddleware.
Setting error response for request path:/test/WeatherForecast, request method: GET'
 
requestId: 0HN0MJFAEUU8F:00000009, previousRequestId: No PreviousRequestId, 
message: 'DownstreamRouteFinderMiddleware setting pipeline errors. IDownstreamRouteFinder returned Error Code: UnableToFindDownstreamRouteError 
Message: Failed to match Route configuration for upstream path: /test/WeatherForecast, verb: GET.'

My ocelot.json 👉

{
  "Routes": [
    {
      "DownstreamPathTemplate": "/{everything}",
      "UpstreamPathTemplate": "/test/{everything}",
      "UpstreamHttpMethod": [
      ],
      "DownstreamHttpMethod": null,
      "AddHeadersToRequest": {
      },
      "UpstreamHeaderTransform": {
      },
      "DownstreamHeaderTransform": {
      },
      "AddClaimsToRequest": {
      },
      "RouteClaimsRequirement": {
      },
      "AddQueriesToRequest": {
      },
      "ChangeDownstreamPathTemplate": {
      },
      "RequestIdKey": null,
     "FileCacheOptions": {
        "TtlSeconds": 0,
        "Region": null
      },
      "RouteIsCaseSensitive": false,
      "ServiceName": null,
      "ServiceNamespace": null,
      "DownstreamScheme": "https",
      "QoSOptions": {
        "ExceptionsAllowedBeforeBreaking": 0,
        "DurationOfBreak": 0,
        "TimeoutValue": 0
      },
      "LoadBalancerOptions": {
        "Type": null,
        "Key": null,
        "Expiry": 0
      },
      "RateLimitOptions": {
        "ClientWhitelist": [
        ],
        "EnableRateLimiting": false,
        "Period": null,
        "PeriodTimespan": 0.0,
        "Limit": 0
      },
      "AuthenticationOptions": {
        "AuthenticationProviderKey": null,
        "AllowedScopes": [
        ]
      },
      "HttpHandlerOptions": {
        "AllowAutoRedirect": false,
        "UseCookieContainer": false,
        "UseTracing": false,
        "UseProxy": true,
        "MaxConnectionsPerServer": 2147483647
      },
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7071
        }
      ],
      "UpstreamHost": "localhost:6001",
      "Key": null,
      "DelegatingHandlers": [
      ],
      "Priority": 1,
      "Timeout": 0,
      "DangerousAcceptAnyServerCertificateValidator": false,
      "SecurityOptions": {
        "IPAllowedList": [
        ],
        "IPBlockedList": [
        ]
      },
      "DownstreamHttpVersion": null
    }
  ],
  "DynamicRoutes": [
  ],
  "Aggregates": [
  ],
  "GlobalConfiguration": {
    "RequestIdKey": null,
    "ServiceDiscoveryProvider": {
      "Scheme": null,
      "Host": null,
      "Port": 0,
      "Type": null,
      "Token": null,
      "ConfigurationKey": null,
      "PollingInterval": 0,
      "Namespace": null
    },
    "RateLimitOptions": {
      "ClientIdHeader": "ClientId",
      "QuotaExceededMessage": null,
      "RateLimitCounterPrefix": "ocelot",
      "DisableRateLimitHeaders": false,
      "HttpStatusCode": 429
    },
    "QoSOptions": {
      "ExceptionsAllowedBeforeBreaking": 0,
      "DurationOfBreak": 0,
      "TimeoutValue": 0
    },
    "BaseUrl": "https://localhost:6001",
    "LoadBalancerOptions": {
      "Type": null,
      "Key": null,
      "Expiry": 0
    },
    "DownstreamScheme": null,
    "HttpHandlerOptions": {
      "AllowAutoRedirect": false,
      "UseCookieContainer": false,
      "UseTracing": false,
      "UseProxy": true,
      "MaxConnectionsPerServer": 2147483647
    },
    "DownstreamHttpVersion": null
  }
}

[nrllhylmz]

I delete "UpstreamHost":"localhost:6001" and it worked.
I want to use "UpstreamHost"

[raman-m]

@nrllhylmz commented on Jan 16:

---

I delete "UpstreamHost":"localhost:6001" and it worked.
I want to use "UpstreamHost"

But why do you need to use UpstreamHost if you have single route in development environment?
Maybe some firewall tool will help you? 😄

Read UpstreamHost docs and you will get that feature is based on Host header! You just cannot make request from Ocelot instance app to itself!

---

Your very zipped JSON

{
  "Routes": [
    {
      "DownstreamPathTemplate": "/{everything}",
      "UpstreamPathTemplate": "/test/{everything}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost", "Port": 7071
        }
      ],
      "UpstreamHost": "localhost:6001",
    }
  ],
  "GlobalConfiguration": {
    "BaseUrl": "https://localhost:6001",
    "DownstreamHttpVersion": null
  }
}

Don't you see the issue?
You cannot use "UpstreamHost" with value localhost:6001 because "BaseUrl" is https://localhost:6001 !!!
You cannot make requests from Ocelot instance to itself!
"UpstreamHost" property is used to filter incoming requests from various domains in DNS form but not from Base URL of Ocelot host & port! It is impossible!
That is why you have error: Failed to match Route configuration for upstream path: /test/WeatherForecast which says that Ocelot cannot find route!

What are you doing? 🤯

[raman-m]

Nurullah Yılmaz!

I recommend you to

• start reading Ocelot docs from very beginning.
• start using DNS and dev & test API tools like Postman

I see misconfiguration problem which should be fixed by your own.
Our all tests are green and UpstreamHost feature should not be broken.
For invalid configs the feature can be broken.

[nrllhylmz]

Dear @raman-m
I created a sample project for you.

---

My ocelot.json

{
	"Routes": [
		{
			"UpstreamHost": "localhost:6001",
			"UpstreamPathTemplate": "/test/{everything}",
			"DownstreamPathTemplate": "/{everything}",
			"DownstreamHostAndPorts": [
				{
					"Host": "localhost",
					"Port": 7071
				}
			]
		},
		{
			"UpstreamHost": "localhost:6002",
			"UpstreamPathTemplate": "/test/{everything}",
			"DownstreamPathTemplate": "/{everything}",
			"DownstreamHostAndPorts": [
				{
					"Host": "localhost",
					"Port": 7072
				}
			]
		}
	],
	"GlobalConfiguration": {
		"BaseUrl": "https://localhost:6001"
	}
}

---

Projects started

Ocelot18.Api(version 18.0.0) => https://localhost:6001;
			 => https://localhost:6002, 
Test1.Api => https://localhost:7071,
Test2.Api => https://localhost:7072

https://localhost:6001/test/WeatherForecast route matched
https://localhost:6002/test/WeatherForecast route matched

Projects stop

---

Projects started

Ocelot22.Api (version 22.0.1) => https://localhost:6001;
			 => https://localhost:6002, 
Test1.Api => https://localhost:7071,
Test2.Api => https://localhost:7072

https://localhost:6001/test/WeatherForecast route not found
https://localhost:6002/test/WeatherForecast route not found

Projects stop

Repository link: https://github.com/nrllhylmz/Example

Thanks.

[raman-m]

Your next created #1926 will be checked by our QA engineer... You can talk to him.