[jira] [Created] (IGNITE-6750) Return "wrong command" error in http rest api

[Alexander Belyak (JIRA)]

Alexander Belyak created IGNITE-6750:
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             Summary: Return "wrong command" error in http rest api
                 Key: IGNITE-6750
                 URL: https://issues.apache.org/jira/browse/IGNITE-6750
             Project: Ignite
          Issue Type: Bug
      Security Level: Public (Viewable by anyone)
          Components: general
    Affects Versions: 2.2, 2.1, 2.0, 1.9
            Reporter: Alexander Belyak
            Priority: Minor
             Fix For: 2.4


If I make mistake in command name, for example

curl "http://localhost:8080/ignite?cmd=wrongcmd";

<no output here>

I get no error message and nothing will be logged in ignite log (even in 
IGNITE_QUIET=false mode) and only by getting response code

curl -I "http://localhost:8080/ignite?cmd=wrongcmd";

HTTP/1.1 400 Bad Request
Date: Wed, 25 Oct 2017 10:03:06 GMT
Content-Type: application/json; charset=UTF-8
Content-Length: 0
Server: Jetty(9.2.11.v20150529)

I can see something, but without root cause.
We need:
1) return error text

curl "http://localhost:8080/ignite?cmd=wrongcmd";

{"successStatus":1,"sessionToken":null,"error":"Failed to handle request: 
[req=UNKNOWN, err=Failed to find command: wrongcmd]","response":null}

 as usual:

curl "http://localhost:8080/ignite?cmd=get";

{"successStatus":1,"sessionToken":null,"error":"Failed to handle request: 
[req=CACHE_GET, err=Failed to find mandatory parameter in request: 
key]","response":null}

2)  set status code in http response to 400 ( 
http://www.restapitutorial.com/httpstatuscodes.html )



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