topic Re: How to use Proxy API in C# in Integration, Extension & APIs

How to use Proxy API in C#

Qiyanlu66 — Mon, 03 Jun 2019 18:40:08 GMT

Hello all,

I am currently working on the Qlik .net SDK and need to delete the Proxy session.

So my question is that how do I use the Proxy REST APIs in .net SDK?

Can some one please tell me how to do it or is there a link of step-by-step tutorial.

Thanks guys.

Re: How to use Proxy API in C#

Qiyanlu66 — Mon, 03 Jun 2019 19:42:51 GMT

So I believe in order to use the Proxy REST API to delete session, I have to Connecting to the QPS API in C# right?
I have look at the documentation for Connecting to the QPS API using certificates
(https://help.qlik.com/en-US/sense-developer/June2018/Subsystems/ProxyServiceAPI/Content/ProxyServiceAPI/ProxyServiceAPI-Example-Connect-API-Certificates.htm)
But I still have no idea where should I start.

Re: How to use Proxy API in C#

Øystein_Kolsrud — Tue, 04 Jun 2019 09:34:45 GMT

I have this little project that might find useful. It's a light-weight SDK for establishing connections to the REST based Qlik Sense services:

https://github.com/kolsrud/qlik_rest_sdk

The dll is available for download from nuget:

https://www.nuget.org/packages/QlikSenseRestClient/

Re: How to use Proxy API in C#

Qiyanlu66 — Tue, 04 Jun 2019 14:26:42 GMT

Thank you very much, the SDK works very well.
Can I ask you one more question about how to delete a Session .
In the Documentation, it has

Path
/qps/{virtual proxy/}session/{id}

Method
DELETE

Description
This deletes the proxy session identified by {id} and performs a teardown of all connections for that session. The Session module is notified. The deleted session is returned as a session struct.

So, for the path /qps/{virtual proxy/}session/{id}
What value should I put for the {virtual Proxy}, I checked the QMC, should I use the description of the central node, or the Perfix, or the Session cookie header name?

Thanks you for your help!

Re: How to use Proxy API in C#

Øystein_Kolsrud — Tue, 04 Jun 2019 15:10:20 GMT

I'm not familiar with that endpoint, but I would guess that you are supposed to use the virtual proxy prefix (if there is any).

Re: How to use Proxy API in C#

Qiyanlu66 — Tue, 04 Jun 2019 17:21:29 GMT

Hey, When I use the following code to send one API request, it seems I can only send on each time ?

var senseServerUrl = "https://100.00.0";
var restClient = new RestClient(senseServerUrl);
var certs = RestClient.LoadCertificateFromStore();
restClient.AsDirectConnection(4243, false, certs);
using (new Qlik.Sense.RestClient.DebugConsole())
{
restClient.Get("/qps/session");
restClient.Delete("/qps/session/18247d");
}

If there is only restClient.Get("/qps/session"); it works fine. But if there are two requests, it will return a error Authentication failed: 503: Service Unavailable

Do you knowhow should I fix it?

Thank you sir.

Re: How to use Proxy API in C#

Øystein_Kolsrud — Wed, 05 Jun 2019 06:53:54 GMT

Where do you get that session id from? Isn't it simply the case that you are deleting the session you are using for your RestClient so that you get logged out and have to reauthenticate?