CODEWITHSUNDEEP
c#.netasp.net-coreocelot
Imesashvili_Irakli
Imesashvili_Irakli

Reputation: 306

Ocelot throwing error in .NET 8 microservice project

I am working on a micro service application - a simple online shop. I am learning micro services and want to use Ocelot as my gateway project, but I have a problem in the project.

Right now this is the ocelot.json file I use where I configured the routes:

{
  "Routes": [
    //"ProductAPI": "https://localhost:7000",
    {
      "DownstreamPathTemplate": "/api/productAPI",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7000
        }
      ],
      "UpstreamPathTemplate": "/api/productAPI",
      "UpstreamHttpMethod": [ "GET" ]
    },
    {
      "DownstreamPathTemplate": "/api/productAPI/{id}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7000
        }
      ],
      "UpstreamPathTemplate": "/api/productAPI/{id}",
      "UpstreamHttpMethod": [ "Get", "DELETE" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/productAPI",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7000
        }
      ],
      "UpstreamPathTemplate": "/api/productAPI",
      "UpstreamHttpMethod": [ "POST", "PUT" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },

    //"CouponAPI": "https://localhost:7001",
    {
      "DownstreamPathTemplate": "/api/couponAPI",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7001
        }
      ],
      "UpstreamPathTemplate": "/api/couponAPI",
      "UpstreamHttpMethod": [ "Get" ]
    },
    {
      "DownstreamPathTemplate": "/api/couponAPI/GetByCode/{code}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7001
        }
      ],
      "UpstreamPathTemplate": "/api/couponAPI/GetByCode/{code}",
      "UpstreamHttpMethod": [ "Get" ]
    },
    {
      "DownstreamPathTemplate": "/api/couponAPI/{id}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7001
        }
      ],
      "UpstreamPathTemplate": "/api/couponAPI/{id}",
      "UpstreamHttpMethod": [ "Get", "DELETE" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/couponAPI",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7001
        }
      ],
      "UpstreamPathTemplate": "/api/couponAPI",
      "UpstreamHttpMethod": [ "POST", "PUT" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },

    //"ShoppingCartAPI": "https://localhost:7003",
    {
      "DownstreamPathTemplate": "/api/cartAPI/GetCart/{id}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7003
        }
      ],
      "UpstreamPathTemplate": "/api/cartAPI/GetCart/{id}",
      "UpstreamHttpMethod": [ "GET" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/cartAPI/RemoveCart",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7003
        }
      ],
      "UpstreamPathTemplate": "/api/cartAPI/RemoveCart",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/cartAPI/CartUpsert",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7003
        }
      ],
      "UpstreamPathTemplate": "/api/cartAPI/CartUpsert",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/cartAPI/EmailCartRequest",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7003
        }
      ],
      "UpstreamPathTemplate": "/api/cartAPI/EmailCartRequest",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/cartAPI/ApplyCoupon",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7003
        }
      ],
      "UpstreamPathTemplate": "/api/cartAPI/ApplyCoupon",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },

    //"OrderAPI": "https://localhost:7004",
    {
      "DownstreamPathTemplate": "/api/orderAPI/GetOrders?userId={id}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/GetOrders/{id}",
      "UpstreamHttpMethod": [ "GET" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/orderAPI/GetOrders?userId=''",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/GetOrders/",
      "UpstreamHttpMethod": [ "GET" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/orderAPI/GetOrder/{id}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/GetOrder/{id}",
      "UpstreamHttpMethod": [ "GET" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/orderAPI/UpdateOrderStatus/{id}",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/UpdateOrderStatus/{id}",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/orderAPI/ValidateStripeSession",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/ValidateStripeSession",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/orderAPI/CreateStripeSession",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/CreateStripeSession",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    },
    {
      "DownstreamPathTemplate": "/api/orderAPI/CreateOrder",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7004
        }
      ],
      "UpstreamPathTemplate": "/api/orderAPI/CreateOrder",
      "UpstreamHttpMethod": [ "POST" ],
      "AuthenticationOptions": {
        "AuthenticationProviderKey": "Bearer"
      }
    }
  ],
  "GlobalConfiguration": {
    "BaseUrl": "https://localhost:7777"
  }
}

This is the program.cs file:

using Ocelot.DependencyInjection;
using Ocelot.Middleware;
using Shop.GatewayProject.Extensions;

var builder = WebApplication.CreateBuilder(args);

builder.AddAppAuthentication();

builder.Configuration.AddJsonFile("ocelot.json", optional: false, reloadOnChange: true);

builder.Services.AddOcelot(builder.Configuration);

var app = builder.Build();

app.MapGet("/", () => "Hello World!");

app.UseOcelot().GetAwaiter().GetResult();

app.Run();

The appsettings.json is basic.

Error:

warn: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
requestId: 0HMVPEQ365DJH:00000001, previousRequestId: No PreviousRequestId, message: 'DownstreamRouteFinderMiddleware setting pipeline errors. IDownstreamRouteFinder returned Error Code: UnableToFindDownstreamRouteError Message: Failed to match Route configuration for upstream path: /, verb: GET.'

warn: Ocelot.Responder.Middleware.ResponderMiddleware[0]
requestId: 0HMVPEQ365DJH:00000001, previousRequestId: No PreviousRequestId, message: 'Error Code: UnableToFindDownstreamRouteError Message: Failed to match Route configuration for upstream path: /, verb: GET. errors found in ResponderMiddleware. Setting error response for request path:/, request method: GET'

I tried checking the routes and all seems fine. In the BaseUrl I have the gateway projects url.

I tried to keep only one route that I know would work for sure but still couldn't manage to fix it.

Upvotes: 0

Views: 702

Answers (1)

Abhishek Vyas
Abhishek Vyas

Reputation: 734

Its not the error, its the warning

warn: Ocelot.DownstreamRouteFinder.Middleware.DownstreamRouteFinderMiddleware[0]
    requestId: 0HMVPEQ365DJH:00000001, previousRequestId: No PreviousRequestId, message: 'DownstreamRouteFinderMiddleware setting pipeline errors. IDownstreamRouteFinder returned Error Code: UnableToFindDownstreamRouteError Message: Failed to match Route configuration for upstream path: /, verb: GET.'

Setting the default route should resolve the warning as shown below

 {
    ......
    ......
    {
      "DownstreamPathTemplate": "/",
      "DownstreamScheme": "https",
      "DownstreamHostAndPorts": [
        {
          "Host": "localhost",
          "Port": 7000
        }
      ],
      "UpstreamPathTemplate": "/",
      "UpstreamHttpMethod": [ "GET" ]
    },
      ......
      ......

Upvotes: 0

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