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ThreeMammals / Ocelot

.NET API Gateway
https://www.nuget.org/packages/Ocelot
MIT License
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Ocelot.Errors.Middleware.ExceptionHandlerMiddleware #995

Closed ToeToeAung closed 4 years ago

ToeToeAung commented 5 years ago

I am getting error in ocelot and consul api gateway. Please take a look. Ocelot.Errors.Middleware.ExceptionHandlerMiddleware[0] requestId: 0HLP7RAM3DIPM:00000002, previousRequestId: no previous request id, message: Exception caught in global error handler, exception message: No such host is known, exception stack: at System.Net.Http.ConnectHelper.ConnectAsync(String host, Int32 port, CancellationToken cancellationToken) at System.Threading.Tasks.ValueTask`1.get_Result()

ToeToeAung commented 5 years ago

1.Consul Service Discovery

image

2.API

API is working well. image

  1. API Gateway

API call in postman : http://localhost:7000/api/getnerateconfigservice/GetClientID

{ "ReRoutes": [ { "DownstreamPathTemplate": "/api/{everything}", "DownstreamScheme": "http", "DownstreamPort": 7104, "ServiceName": "generateconfigservice", "UpstreamPathTemplate": "/api/{everything}", "UpstreamHttpMethod": [ "Get" ] } ], "GlobalConfiguration": { "ServiceDiscoveryProvider": { "Host": "consul", "Port": 8500, "Type": "Consul" } } }

Error encountered

image

djrhodes commented 5 years ago

What is ‘consul’ in the Host? Is that in you hostfile? If I’m running consul locally i’ll point to localhost or 127.0.0.1

On Sat, 24 Aug 2019 at 04:35, ToeToeAung notifications@github.com wrote:

1.Consul Service Discovery

[image: image] https://user-images.githubusercontent.com/5344377/63632097-f752bc80-c662-11e9-8d77-544700c7b036.png

2.API

API is working well.

[image: image] https://user-images.githubusercontent.com/5344377/63632102-02a5e800-c663-11e9-9746-433ad50ab263.png

  1. API Gateway

API call in postman : http://localhost:7000/api/getnerateconfigservice/GetClientID

{ "ReRoutes": [ { "DownstreamPathTemplate": "/api/{everything}", "DownstreamScheme": "http", "DownstreamPort": 7104, "ServiceName": "generateconfigservice", "UpstreamPathTemplate": "/api/{everything}", "UpstreamHttpMethod": [ "Get" ] } ], "GlobalConfiguration": { "ServiceDiscoveryProvider": { "Host": "consul", "Port": 8500, "Type": "Consul" } } }

Error encountered

[image: image] https://user-images.githubusercontent.com/5344377/63632109-12253100-c663-11e9-9c12-e28e20f93a17.png

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ToeToeAung commented 5 years ago

Hi @djrhodes ,

I have tried with localhost & 127.0.0.1 as well, It is still getting error.
I am following the sample as https://medium.com/@paulius.juozelskis/api-gateway-using-net-core-ocelot-and-consul-f0adea97f57

ToeToeAung commented 5 years ago

Hi @TomPallister,

Could you take a look this. Thanks in advance.

winlj commented 5 years ago

ocelot version is 13.5.2???

ToeToeAung commented 5 years ago

Yes. @winlj I tried test with 13.5.2 and 13.5.0.

winlj commented 5 years ago

13.5.1 ok

you try

ToeToeAung commented 5 years ago

Is it because of json file and client call? http://localhost:7000/generateconfigservice/apiname

{ "ReRoutes": [ { "DownstreamPathTemplate": "/api/{everything}", "DownstreamScheme": "http", "DownstreamPort": 7104,
"UseServiceDiscovery": true, "LoadBalancerOptions": { "Type": "RoundRobin" }, "ServiceName": "generateconfigservice", "UpstreamPathTemplate": "/api/generateconfigservice/{everything}", "UpstreamHttpMethod": [ "Get" ], "ReRoutesCaseSensitive": false

    }
],
"GlobalConfiguration": {    
    "ServiceDiscoveryProvider": {
        "Host": "localhost",
        "Port": 8500,
        "Type": "Consul",
        "PollingInterval": 100
    }
}

}

    [HttpGet]
    [Route("api/generateconfigservice/GetClientID")]
    [Produces("application/json")]
    public string GetClientID()
ToeToeAung commented 5 years ago

7000 port is the for the base Url

ToeToeAung commented 5 years ago

Yes. Now I am trying with 13.5.1 and still getting error.

winlj commented 5 years ago

o my god

ToeToeAung commented 5 years ago

Any issue?

djrhodes commented 5 years ago

Hi, sorry you’re still having issues with this. A couple of things don’t seem right. Firstly, the address in your service instance config in Consul is pointing to generateconfigservice:80 (but looks like you’re running the downstream service on localhost:7104)? Though it looks healthy in consul so wouldn’t expect an error. Can you post your consul config including the healthcheck endpoint?

Secondly, as you’re using service discovery you shouldn’t need to specify DownstreamPort in the re route config. Not sure if this causes a problem, but worth taking out anyway.

John Sent from my iPhone

On 26 Aug 2019, at 09:00, ToeToeAung notifications@github.com wrote:

Any issue?

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ToeToeAung commented 5 years ago

Hi djrhodes,

How can we made a call service using service name?

On Mon, Aug 26, 2019 at 5:02 PM djrhodes notifications@github.com wrote:

Hi, sorry you’re still having issues with this. A couple of things don’t seem right. Firstly, the address in your service instance config in Consul is pointing to generateconfigservice:80 (but looks like you’re running the downstream service on localhost:7104)? Though it looks healthy in consul so wouldn’t expect an error. Can you post your consul config including the healthcheck endpoint?

Secondly, as you’re using service discovery you shouldn’t need to specify DownstreamPort in the re route config. Not sure if this causes a problem, but worth taking out anyway.

John Sent from my iPhone

On 26 Aug 2019, at 09:00, ToeToeAung notifications@github.com wrote:

Any issue?

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ToeToeAung commented 5 years ago

http://localhost:7000/generateconfigservice/apiname. is it correct way to call?

djrhodes commented 5 years ago

Looking at your route config, assuming your gateway is on localhost:7000 it would be http://localhost:7000/api/generateconfigservice/getconfigid

On Tue, 27 Aug 2019 at 04:26, ToeToeAung notifications@github.com wrote:

http://localhost:7000/generateconfigservice/apiname. is it correct way to call?

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daisen commented 4 years ago

@ToeToeAung this error is because of new pull request(#909 ) for ssl failure which changing address to node name

ToeToeAung commented 4 years ago

Sorry for late reply. This issue has been solved.

ToeToeAung commented 4 years ago

I have fixed by using with correct service registry with specific port and call that service from ocelot api gateway.

sumit79sahu commented 1 year ago

hii can u please share the ocelotconfig.json file

shubhamjainy commented 1 month ago

I am also facing this issue.