Error when used with Consul as service discovery provider

[Reintjuu]

With Consul up and running (available through port 8500), I'm not able to use this library to access an individual service's swagger documentation.

The Example service is configured as follows:

public void ConfigureServices(IServiceCollection services)
{
    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo { Title = "Example Service", Version = "v1" });
    });
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    app.UseSwagger();
}

And my ocelot.json:

{
  "ReRoutes": [
    {
      "DownstreamPathTemplate": "/api/{everything}",
      "ServiceName": "example",
      "UpstreamPathTemplate": "/api/example/{everything}",
      "SwaggerKey": "example"
    }
  ],
  "SwaggerEndPoints": [
    {
      "Key": "example",
      "Config": [
        {
          "Name": "Example",
          "Version": "v1",
          "Service": {
            "Name": "example",
            "Path": "/swagger/v1/swagger.json"
          }
        }
      ]
    }
  ],
  "GlobalConfiguration": {
    "ServiceDiscoveryProvider": {
      "Host": "consul",
      "Port": 8500,
      "Type": "Consul"
    }
  }
}

The services are accessible directly (by creating a simple API controller with a HttpGet method) but don't seem to be through swagger. I'm getting the following error in the logs:

System.InvalidOperationException: An invalid request URI was provided. The request URI must either be an absolute URI or BaseAddress must be set.
   at System.Net.Http.HttpClient.PrepareRequestMessage(HttpRequestMessage request)
   at System.Net.Http.HttpClient.SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken)
   at System.Net.Http.HttpClient.GetStringAsync(String requestUri)
   at MMLib.SwaggerForOcelot.Middleware.SwaggerForOcelotMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.MiddlewareAnalysis.AnalysisMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Builder.Extensions.MapMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.MiddlewareAnalysis.AnalysisMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.MiddlewareAnalysis.AnalysisMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.MiddlewareAnalysis.AnalysisMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
   at Microsoft.AspNetCore.MiddlewareAnalysis.AnalysisMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.MiddlewareAnalysis.AnalysisMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

[Burgyn]

Hi,

I never test this scenario. Because I have no experience with this service.

This library generally uses Service Discovery from Ocelot. It is possible that there is only a small problem, unfortunately I have no way to find it out (I do not have a ready environment). If you had any other information that could help me, that would be nice. For example, some adition info from a given exception. It would be ideal if you could connect this project directly to yours and debug what the problem is.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically closed because it has not had recent activity. Thank you for your contributions.

[raga70]

I had the same issue and added support for Consul in my fork:https://github.com/raga70/MMLib.SwaggerForOcelot/tree/ConsulSupport

also made a pull request, so by the time you are reading this, it might already be in the main code base