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Create AE via MQTT Binding [message #1764634] Thu, 01 June 2017 05:12 Go to next message
teak jin kim is currently offline teak jin kimFriend
Messages: 3
Registered: June 2017
Junior Member
Hi.

I already did Create AE via HTTP (REST API) following OM2M HTTP binding Wiki.

There were many examples like create AE , Create DESCRIPTOR container so on..

But I don't know How to send a message via MQTT binding.

Is Anyone know How to do this?

I need a topic and payload that can follow to do this.

Also If you have a example like under method plz tell me.

1. Create a application
2. Create a DESCRIPTOR container
3. Create a description contentInstance
4. Create a DATA container
5. Create a data contentInstance

Is anyone know how to do this reply me.!

Thanks

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Re: Create AE via MQTT Binding [message #1764829 is a reply to message #1764634] Fri, 02 June 2017 13:48 Go to previous messageGo to next message
Maite Bezunartea is currently offline Maite BezunarteaFriend
Messages: 3
Registered: April 2017
Junior Member
Hello,

There is an example on how to create a container in the MQTT Binding tutorial:

https://wiki.eclipse.org/OM2M/one/MQTT_Binding

You can use tools such as MQTTLens to test this.

Cheers!

[Updated on: Fri, 02 June 2017 13:49]

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Re: Create AE via MQTT Binding [message #1764955 is a reply to message #1764829] Sun, 04 June 2017 23:59 Go to previous messageGo to next message
teak jin kim is currently offline teak jin kimFriend
Messages: 3
Registered: June 2017
Junior Member
Thank you for your reply.

I tried Create Container via MQTT and it responsed 'there is no parent AE'

So I tried to make Application for and here is my topic and json.

topic : /oneM2M/req/MY-SENSOR/in-cse/json
payload :
{
"m2m:rqp" : {
"fr" : "MY-SENSOR",
"to" : "/in-cse",
"op" : 1,
"rqi": 123456,
"pc": {
"m2m:ae" : {
"rn": "MY-SENSOR",
"rr": "false"

}
},
"ty": 2
}
}

But still not working So Can you give me a example to make AE?

like https://wiki.eclipse.org/OM2M/REST_API page

Create a "MY_SENSOR" application >> This API to MQTT

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Re: Create AE via MQTT Binding [message #1765050 is a reply to message #1764955] Tue, 06 June 2017 08:04 Go to previous messageGo to next message
Maite Bezunartea is currently offline Maite BezunarteaFriend
Messages: 3
Registered: April 2017
Junior Member
Hello,

This works for me:

Topic: /oneM2M/req/MY-SENSOR/in-cse/json

Payload:
{
"m2m:rqp": {
"fr" : "admin:admin",
"to" : "/in-cse/in-name",
"op" : 1,
"rqi": 123456,
"pc": {
"m2m:ae" : {
"api": "app-sensor",
"rr": "false",
"rn": "MY-SENSOR"
}
},
"ty": 2
}
}

I hope it helps.
Cheers!

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Re: Create AE via MQTT Binding [message #1776824 is a reply to message #1764829] Wed, 22 November 2017 05:15 Go to previous messageGo to next message
hieu tran is currently offline hieu tranFriend
Messages: 19
Registered: November 2017
Junior Member
Topic: /oneM2M/req/MY-SENSOR/in-cse/json

What is MY-SENSOR ? Can i understand it is Client ID of mqttlen

And, when you publish into Topic: /oneM2M/req/MY-SENSOR/in-cse/json
Have any response ? Could you show me it ?

[Updated on: Wed, 22 November 2017 14:41]

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Re: Create AE via MQTT Binding [message #1778805 is a reply to message #1764634] Thu, 21 December 2017 16:01 Go to previous messageGo to next message
Gordian Zomer is currently offline Gordian ZomerFriend
Messages: 5
Registered: December 2017
Junior Member
Whenever I throw a correctly formatted JSON object at the MQTT broker, I get the following error in in-cse: 

[INFO] - org.eclipse.om2m.core.router.Router
OM2M exception caught in Router: No Operation provided


I followed examples provided here, in "Test MQTT blinding in OM2M" and in the MQTT bindings section. Nothing seems to work.

The part which says "No operation provided", does it refer to "op" field in "m2m:rqp"?

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Re: Create AE via MQTT Binding [message #1778840 is a reply to message #1764634] Fri, 22 December 2017 11:35 Go to previous messageGo to next message
Gordian Zomer is currently offline Gordian ZomerFriend
Messages: 5
Registered: December 2017
Junior Member
I started to do some debugging through the MQTT request process. It turns out that an MQTT request is caught by the MqttRequestHelper and send to the method stringToObj in datamapping/jaxb/Mapper for un-marshalling. The string representation seems to be valid, but un-marshalling returns an empty object?

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Re: Create AE via MQTT Binding [message #1778841 is a reply to message #1764634] Fri, 22 December 2017 11:36 Go to previous messageGo to next message
Gordian Zomer is currently offline Gordian ZomerFriend
Messages: 5
Registered: December 2017
Junior Member
I started to do some debugging through the MQTT request process. It turns out that an MQTT request is caught by the MqttRequestHelper and send to the method stringToObj in datamapping/jaxb/Mapper for un-marshalling. The string representation seems to be valid, but un-marshalling returns an empty object?

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Re: Create AE via MQTT Binding [message #1778843 is a reply to message #1778841] Fri, 22 December 2017 11:41 Go to previous messageGo to next message
hieu tran is currently offline hieu tranFriend
Messages: 19
Registered: November 2017
Junior Member
I found in Router.java the exception: - line 130
code]if(request.getOperation() == null){
throw new BadRequestException("No Operation provided");
}[[/code]
The code seem not to read the "op" filed.
Do you have any idea to fix these problem ?

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Re: Create AE via MQTT Binding [message #1778848 is a reply to message #1778843] Fri, 22 December 2017 13:13 Go to previous messageGo to next message
Gordian Zomer is currently offline Gordian ZomerFriend
Messages: 5
Registered: December 2017
Junior Member
hieu tran wrote on Fri, 22 December 2017 11:41
I found in Router.java the exception: - line 130
code]if(request.getOperation() == null){
throw new BadRequestException("No Operation provided");
}[[/code]
The code seem not to read the "op" filed.
Do you have any idea to fix these problem ?


The exception is not the problem. It seems that the request is empty (and therefore the operation is null), which means that the incoming MQTT request is not parsed. I think the un-marshaller is broken.

[Updated on: Fri, 22 December 2017 13:15]

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Re: Create AE via MQTT Binding [message #1778849 is a reply to message #1778843] Fri, 22 December 2017 13:13 Go to previous messageGo to next message
Gordian Zomer is currently offline Gordian ZomerFriend
Messages: 5
Registered: December 2017
Junior Member
double post

[Updated on: Fri, 22 December 2017 13:14]

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Re: Create AE via MQTT Binding [message #1778960 is a reply to message #1778849] Tue, 26 December 2017 14:47 Go to previous messageGo to next message
Hung Nguyen is currently offline Hung NguyenFriend
Messages: 1
Registered: December 2017
Junior Member
Anyone can fix "op" problem?
I have same problem that No operation provided.
Any idea to fix that?

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Re: Create AE via MQTT Binding [message #1782331 is a reply to message #1778960] Thu, 22 February 2018 05:31 Go to previous messageGo to next message
Muhammad Kamran is currently offline Muhammad KamranFriend
Messages: 18
Registered: November 2017
Junior Member
Hi everyone, I am also getting same response, anybody can help to fix that? dms.stringToObj (payload) returns an empty object.

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Re: Create AE via MQTT Binding [message #1783210 is a reply to message #1782331] Fri, 09 March 2018 08:45 Go to previous messageGo to next message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
Hi, I am facing the same issue. Here is the request I send and the respond I get :

            {
                "m2m:rqp": {
                    "fr": "SENSOR2",
                    "to": "/mn-cse/RSU/SENSOR2/DATA",
		    "op": 1,
                    "rqi": 179,
                    "pc": {
                        "m2m:cin": {
                        "cnf": "dht2",
                        "con": "24.60_25.60"
                        }
                    },
                    "ty": 4
                }
            }
            
{
   "m2m:rsp" : {
      "m2m:rsc" : 4000,
      "m2m:pc" : "No Operation provided",
      "m2m:fr" : "/mn-cse"
   }
}


If someone know how I can fix it, I could use some help.

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Re: Create AE via MQTT Binding [message #1783217 is a reply to message #1783210] Fri, 09 March 2018 10:03 Go to previous messageGo to next message
Muhammad Kamran is currently offline Muhammad KamranFriend
Messages: 18
Registered: November 2017
Junior Member
send request as below:

{
"m2m:rqp": {
"m2m:fr": "SENSOR2",
"m2m:to": "/mn-cse/RSU/SENSOR2/DATA",
"m2m:op": 1,
"m2m:rqi": 179,
"m2m:pc": {
"m2m:cin": {
"cnf": "dht2",
"con": "24.60_25.60"
}
},
"m2m:ty": 4
}
}


Regards
Kamran

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Re: Create AE via MQTT Binding [message #1783223 is a reply to message #1783217] Fri, 09 March 2018 10:59 Go to previous messageGo to next message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
Ok, first, thank you for your quick answer.
I tried your solution and I now have a different issue : 

{
   "m2m:rsp" : {
      "m2m:rsc" : 4004,
      "m2m:rqi" : "4",
      "m2m:pc" : "Cannot find parent resource",
      "m2m:to" : "SENSOR2",
      "m2m:fr" : "/mn-cse"
   }
}

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Re: Create AE via MQTT Binding [message #1783230 is a reply to message #1783223] Fri, 09 March 2018 12:35 Go to previous messageGo to next message
Muhammad Kamran is currently offline Muhammad KamranFriend
Messages: 18
Registered: November 2017
Junior Member
Have you created AE and Container?


Regards
Kamran

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Re: Create AE via MQTT Binding [message #1783236 is a reply to message #1783230] Fri, 09 March 2018 13:10 Go to previous messageGo to next message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
Are you referring to the 3 JSON shown in the MQTT Binding tutorial ? If so yes, at least I tried. Here are the messages I send and receive : 
{
   "m2m:rqp": {
      "m2m:fr": "SENSOR2",
      "m2m:to": "/mn-cse",
      "m2m:op": 2,
      "m2m:rqi": 1111111
   }
}
    

{
    "m2m:rqp" : {
        "m2m:fr" : "SENSOR2",
        "m2m:to" : "/mn-cse/mn-name/SENSOR2",
        "m2m:op" : 1,
        "m2m:rqi": 123456,
        "m2m:pc": {
            "m2m:cnt" : {
                "rn": "DATA"
            }
        },
        "m2m:ty": 3
    }
}

{
   "m2m:rsp" : {
      "m2m:rsc" : 2000,
      "m2m:rqi" : "1111111",
      "m2m:pc" : {
         "m2m:cb" : {
            "rn" : "mn-name",
            "ty" : 5,
            "ri" : "/mn-cse",
            "ct" : "20180308T164949",
            "lt" : "20180308T164949",
            "acpi" : [ "/mn-cse/acp-207203953" ],
            "cst" : 1,
            "csi" : "mn-cse",
            "srt" : [ 1, 2, 3, 4, 5, 9, 14, 15, 16, 17, 23, 28 ],
            "poa" : [ "http://127.0.0.1:8282/" ]
         }
      },
      "m2m:to" : "SENSOR2",
      "m2m:fr" : "/mn-cse"
   }
}
{
   "m2m:rsp" : {
      "m2m:rsc" : 4004,
      "m2m:rqi" : "123456",
      "m2m:pc" : "Resource not found",
      "m2m:to" : "SENSOR2",
      "m2m:fr" : "/mn-cse"
   }
}
            {
                "m2m:rqp": {
                    "m2m:fr": "SENSOR2",
                    "m2m:to": "/mn-cse/mn-name/SENSOR2/DATA",
                    "m2m:op": 1,
                    "m2m:rqi": "0",
                    "m2m:pc": {
                        "m2m:cin": {
                            "cnf": "dht2",
                            "con": "25.30_28.40"
                        }
                    },
                    "m2m:ty": 4
                }
            }
            
{
   "m2m:rsp" : {
      "m2m:rsc" : 4004,
      "m2m:rqi" : "0",
      "m2m:pc" : "Resource not found",
      "m2m:to" : "SENSOR2",
      "m2m:fr" : "/mn-cse"
   }
}

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Re: Create AE via MQTT Binding [message #1783239 is a reply to message #1783236] Fri, 09 March 2018 13:40 Go to previous messageGo to next message
Muhammad Kamran is currently offline Muhammad KamranFriend
Messages: 18
Registered: November 2017
Junior Member
It seems that AE is not created.

Create AE i.e. "SENSOR2" through request as below:

{
"m2m:rqp": {
"m2m:fr" : "admin:admin",
"m2m:to" : "/in-cse/in-name",
"m2m:op" : 1,
"m2m:rqi": 123456,
"m2m:pc": {
"m2m:ae": {
"api": "123",
"rr": "true",
"rn": "SENSOR2"
}
},
"m2m:ty": 2
}
}


Regards
Kamran

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Re: Create AE via MQTT Binding [message #1783242 is a reply to message #1783239] Fri, 09 March 2018 14:11 Go to previous messageGo to next message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
I added the creation of the AE and now I have this kind of error :
{
   "m2m:rsp" : {
      "m2m:rsc" : 4105,
      "m2m:rqi" : "2222222",
      "m2m:pc" : "Name already present in the parent collection.",
      "m2m:to" : "admin:admin",
      "m2m:fr" : "/mn-cse"
   }
}
{
   "m2m:rsp" : {
      "m2m:rsc" : 4103,
      "m2m:rqi" : "123456",
      "m2m:pc" : "Unknown or unauthorized originator",
      "m2m:to" : "SENSOR2",
      "m2m:fr" : "/mn-cse"
   }
}


The error I have when I try to update the container is the same : "Resource not found "

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Re: Create AE via MQTT Binding [message #1783243 is a reply to message #1783223] Fri, 09 March 2018 14:21 Go to previous messageGo to next message
hieu tran is currently offline hieu tranFriend
Messages: 19
Registered: November 2017
Junior Member
Thanks for your helping.
Can you tell me how you know it ?
Did you find in source code or other document ? Can you share with me ?

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Re: Create AE via MQTT Binding [message #1783244 is a reply to message #1783243] Fri, 09 March 2018 14:41 Go to previous messageGo to next message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
There is nothing to do with the source code.
To come to this point I followed those tutorials, bu I assume you have already look at those :
https://www.eclipse.org/forums/index.php/t/1090165/
https://wiki.eclipse.org/OM2M/one/MQTT_Binding

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Re: Create AE via MQTT Binding [message #1783324 is a reply to message #1783242] Mon, 12 March 2018 05:30 Go to previous messageGo to next message
Muhammad Kamran is currently offline Muhammad KamranFriend
Messages: 18
Registered: November 2017
Junior Member
Can you show me three requests and their corresponding responses?

1. AE creation
2. Container Creation
3. Content instance creation


Regards
Kamran

[Updated on: Mon, 12 March 2018 05:32]

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Re: Create AE via MQTT Binding [message #1783334 is a reply to message #1783324] Mon, 12 March 2018 07:38 Go to previous messageGo to next message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
Hi, I am not so sure of what I am doing but to me the requests are the following :

1. AE creation 
{
        "m2m:rqp": {
                "m2m:fr" : "admin:admin",
                "m2m:to" : "/mn-cse/mn-name",
                "m2m:op" : 1,
                "m2m:rqi": 2222222,
                "m2m:pc": {
                        "m2m:ae": {
                        "api": "123",
                        "rr": "true",
                        "rn": "SENSOR2"
                        }
                },
                "m2m:ty": 2
                }
}


2.Container Creation
{
    "m2m:rqp" : {
        "m2m:fr" : "SENSOR2",
        "m2m:to" : "/mn-cse/mn-name/SENSOR2",
        "m2m:op" : 1,
        "m2m:rqi": 123456,
        "m2m:pc": {
            "m2m:cnt" : {
                "rn": "DATA"
            }
        },
        "m2m:ty": 3
    }
}


3. Content instance creation 
 {
                "m2m:rqp": {
                    "m2m:fr": "SENSOR2",
                    "m2m:to": "/mn-cse/mn-name/SENSOR2/DATA",
                    "m2m:op": 1,
                    "m2m:rqi": "%s",
                    "m2m:pc": {
                        "m2m:cin": {
                            "cnf": "dht2",
                            "con": "%s"
                        }
                    },
                    "m2m:ty": 4
                }
            }

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Re: Create AE via MQTT Binding [message #1783335 is a reply to message #1783334] Mon, 12 March 2018 07:48 Go to previous messageGo to next message
Muhammad Kamran is currently offline Muhammad KamranFriend
Messages: 18
Registered: November 2017
Junior Member
Modify container and content instance request as follow

"m2m:fr" : "admin:admin"

It seems that AE has been created but Container not created due to unauthorized originator, as "m2m:fr" parameter is not properly defined.

Regards
Kamran

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Re: Create AE via MQTT Binding [message #1783337 is a reply to message #1783335] Mon, 12 March 2018 08:28 Go to previous message
Loula Beck is currently offline Loula BeckFriend
Messages: 12
Registered: March 2018
Junior Member
It is now working fine !
Thank you for the help (:

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