Running Commands with REST and Json

[ianEve]

Hi Community,

I just installed Kie Workbench and Kie Execeution Server (Version 6.4) on Wildfly 8.x. Now I'd like to try the "Fire-Alert" example taken from Chapter 6 of the documentation. So I put the facts consisting of Room, Sprinkler, Alert and Fire to a jar file and deployed it with Kie Workbench. I also added my DRL-file, validated it and deployed it. So far, everything works fine.

Now I want to run the example with REST by executing a batch command in JSON format. The problem I have is getting the error: "Bad request, no commands to be executed - either wrong format or no data".

The attached picture visuals the REST-Call (executed by Postman).

This is the whole rest command:

POST /kie-server/services/rest/server/containers/instances/BreezePrototype HTTP/1.1
Host: localhost:8080
X-KIE-ContentType: json
Authorization: Basic a2llc2VydmVyOmtpZXNlcnZlcjEh
Accept: application/json
Content-Type: application/json
Cache-Control: no-cache
Postman-Token: 8535c021-519a-57d4-109f-66360efc03cb

{"batch-execution":{"commands":[{"insert":{"out-identifier":"Kitchen_room","return-object":true,"entry-point":"DEFAULT","object":{"de.myPackage.facts.Room":{"name":"kitchen"}}}},{"insert":{"out-identifier":"Kitchen_fire","return-object":true,"entry-point":"DEFAULT","object":{"de.myPackage.facts.Fire":{"room":{"name":"kitchen"}}}}},{"insert":{"out-identifier":"Kitchen_sprinkler","return-object":true,"entry-point":"DEFAULT","object":{"de.myPackage.facts.Sprinkler":{"room":{"name":"kitchen"},"on":true}}}},{"fire-all-rules":""}]}}

Has anybody of you any idea how to solve the problem?

Regards, ian

[Maciej Swiderski]

you use wrong payload, simply remove the batch-execution layer from your json so it starts {“commands”….

Maciej

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<kie_rest_json.png>

[ianEve]

Thanks for your answer. But now I am getting another error with message: Error calling container BreezePrototype: Error unmarshalling input

Do you have any solution for that message?

regards, ian

[ianEve]

OK - I got it.... The default constructor was missing in the facts, so it didn't work

Cheers! ian

[vijay yadav]

hey
would you please elaborate how did you solve this issue?

Thanks

[ASHISH NATHANI]

Hi Michalski,

I have set up kie server and workbench on my system and I am able to fire the rules through rest calls now . But I am facing two major issue and these are  when I update the rule I need to create a new container with new version for that rule and secondly when I create the new container  it is not instantiated and for that I need to restart my server .
Is there any way through which I can update and deploy new / modified rules at run time

Thanks in advance

Regards
Ashish Nathani

On Monday, June 27, 2016 at 6:29:59 PM UTC+5:30, J. Michalski wrote:

[ASHISH NATHANI]

Hi Maciej,

[Abhijit Humbe]

To upgrade rules at runtime you can use KieScanner functionality supported by kie-server. Keep the version of jar(project) same and specify scan interval. Kie-server will keep checking maven repository if updated jar/project is available or not.  When you create new container what exception you encounter while starting container ?

Abhijit Humbe

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[ASHISH NATHANI]

Hi Abhijit,

Thanks for the response.

1) Firstly, I can see that the scanner button is disabled in my workbench's execution server tab. Im not sure how will it get enabled.
2) Secondly when I try to start the scanner using rest call it gives me status 200 ok but in the list of scanned items for a container it doest show up.

Moreover, when I try to hit build and deploy option it always asks for a new version as it says that container is already in use. Also when we create a new container (check box is marked for Start Container), the container starts up(as seen in the execution server tab) but the endpoint says that container is not instantiated.

So I am a bit confused as to why I always need to restart the server to instantiate the new containers.

Task in hand - Is to modify or add new rules and deploy them with the same version so that the rest endpoint doesn't change and new rules start executing.

FYI- Using kieserver(7.1.0Final) kie workbench(7.0.0 Final) on wildfly 10.

Thanks in advance.

Regards,
Ashish