| [wakaama-dev] restful APIs |
Hi
I was trying to make REST call with curl, to a web server.(but unsuccessful as of now)
Is there any plan to make such an API as part of Wakaama.
Thanks
Subhash
Hi again Achim ,Thanks a lot for clarifying in such a detailed manner. I guess I was looking at a very old draft and hence I couldnt spot the changes. My apologies for that ! Sorry for such a rookie mistake. I now got the point.Thanks to David too for pointing out initailly.Thanks again , CheersHariOn Tue, May 5, 2015 at 2:06 PM, Kraus Achim (INST/ESY4) <Achim.Kraus@xxxxxxxxxxxx> wrote:Hi Hari,
maybe you update the LWM2M-TS to „OMA-TS-LightweightM2M-V1_0-20150422-D.doc“, which is the current draft. In that version of LWM2M-TS section c5.1.1 is about „attributes“.
The “Name” you want, is the name of the resource. Clear. But I can’t see something in the LWM2M-TS that describes how a LWM2M client transfers this resource name to the LWM2M server. Do you see something? If not, a LWM2M client seems not to be responsible for the name of a resource displayed by the LWM2M server.
So for leshan (LWM2M server displaying the resource names), see Juliens answer.
Mit freundlichen Grüßen / Best regards
Achim Kraus
Bosch Software Innovations GmbH
Communications (INST/ESY4)
Stuttgarter Straße 130
71332 Waiblingen
GERMANY
Registered office: Berlin, Register court: Amtsgericht Charlottenburg, HRB 148411 B
Executives: Dr.-Ing. Rainer Kallenbach; Michael Hahn
Von: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx] Im Auftrag von Hari
Gesendet: Dienstag, 5. Mai 2015 10:17
An: Wakaama developer discussions
Betreff: Re: [wakaama-dev] Small help required in wakama test client
Hi Achim,
Just to clarify , by 'Name' i mean the 'SMS Tx Counter' under the Connectivity Statistics
. But if you see the Object 1024(which is test object) , its resource does not have the name , instead it is just mentioned as Resource 1 , Resource 3. So this is the name i am talking about.
Now where is the one which you had mentioned in TS 5.1.1 mentions about Bootstrap information.I think i am looking at the wrong place.Cheers
Hari
On Tue, May 5, 2015 at 12:50 PM, Kraus Achim (INST/ESY4) <Achim.Kraus@xxxxxxxxxxxx> wrote:
Hi Hari,
the „name“ mentioned in TS 5.1 .1 seems for me to be the name of the attribute e.g. „Greater Than“, not the resource.
I can’t see, how the name of the resource is transferred in LWM2M. So the „(yet)“ may be for a „little“ longer : - ) …
Mit freundlichen Grüßen / Best regards
Achim Kraus
Bosch Software Innovations GmbH
Communications (INST/ESY4)
Stuttgarter Straße 130
71332 Waiblingen
GERMANY
Registered office: Berlin, Register court: Amtsgericht Charlottenburg, HRB 148411 B
Executives: Dr.-Ing. Rainer Kallenbach; Michael Hahn
Von: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx] Im Auftrag von Hari
Gesendet: Dienstag, 5. Mai 2015 09:09
An: Wakaama developer discussions
Betreff: Re: [wakaama-dev] Small help required in wakama test client
Hi Achim ,
Thanks for the hint. Yes now I got the question cleared about the Name attribute. So as of now waakama does not support it (yet) and changing of the json will help me. But let me see how that works.
As for the second, yea now i understood as to how the system works. I will try implementing it from the client code. I actually dont want to monitor the system time. i was just trying to create a dynamic resource for testing and the easiest one was the sys time and hence used that.
I will get back with the updates !!
Thanks a lot people :)
Cheers
Hari
On Tue, May 5, 2015 at 11:47 AM, Kraus Achim (INST/ESY4) <Achim.Kraus@xxxxxxxxxxxx> wrote:
Hi Hari,
your first question is related to leshan, not wakaama. So just a hint:
There is a json file, containing the definitions of the supported objects.
/leshan-core/src/main/resources/oma-objects-spec.json
Add your definition accordingly. May be Julien can help you more.
Your second question:
The wakaama core implements the communication, the resource are intended
to be implemented in the client, and wakaama includes a „test“ client for that.
Though the client maintains the resources, the client is responsible to inform
the wakaama core of changes (e.g. sensor values) as David explained.
According that, you may call lwm2m_resource_value_changed for the system time
every second, if your application want really to observe the system time. But I’m not
sure, if you really want to spend your CPU power and bandwidth for observing the
system time.
Mit freundlichen Grüßen / Best regards
Achim Kraus
Bosch Software Innovations GmbH
Communications (INST/ESY4)
Stuttgarter Straße 130
71332 Waiblingen
GERMANY
Tel. +49 711 811-58139
Registered office: Berlin, Register court: Amtsgericht Charlottenburg, HRB 148411 B
Executives: Dr.-Ing. Rainer Kallenbach; Michael Hahn
Von: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx] Im Auftrag von Hari
Gesendet: Montag, 4. Mai 2015 19:48
An: Wakaama developer discussions
Betreff: Re: [wakaama-dev] Small help required in wakama test client
Hi David ,
Thanks for the warm welcome and the quick reply. Really appreciate it. :) Now let me briefly explain what I am trying to do.
My server is a slightly modified Leshan java server . For the client I am using waakama. I have a added a test resource based on the template of object_device.c. So tell what i meant by the first question is that , when the other resources which are defined according to LWM2M specs , they are shown with the name in place of Resource 1 , Resource 2 etc.. The test objects /1024 have instances and resources. Here the resource does not have a name and just shows Resource 1. So i was thinking how could one change this name.The battery level change is being done normally. But for instance u have to observe a particular resource and in that case how will u dynamically do it ?
PS: Sorry for the rookie type questions. I am learning.
Thanks in advance !
On Mon, May 4, 2015 at 7:28 PM, Navarro, David <david.navarro@xxxxxxxxx> wrote:
Hi Hari and welcome,
I’m not sure to understand your first question. If you are talking about the “Name” attribute (LWM2M TS §5.1), wakaama does not support it (yet). Otherwise Resources in LWM2M Objects are identified by a 16-bit unisigned integer.
When a Resource value changes, you need to call lwm2m_resource_value_changed(lwm2m_context_t * contextP, lwm2m_uri_t * uriP); with the URI of the resource, its instance or its object. The core will then send notifications to any server monitoring this resource.
If you look at the test client code, when the battery level is updated or when the user enter the command-line command “change”, the function handle_value_changed() is called. This function calls lwm2m_value_changed() at line 180.
Regards,
David Navarro
From: wakaama-dev-bounces@xxxxxxxxxxx [mailto:wakaama-dev-bounces@xxxxxxxxxxx] On Behalf Of Hari
Sent: Monday, 4 May, 2015 12:03
To: wakaama-dev@xxxxxxxxxxx
Subject: [wakaama-dev] Small help required in wakama test client
Dear All ,
It is wonderful to see wakama developed. I have been following it right from the days when it was called 'liblwm2m'. I have been trying to port it to embedded devices like the Arduino , Open Picus and others.
Great to see the wakama project up and running with observable properties too. I am in a process of creating a custom object with some static and dynamic resources and have a few questions on. Please help me with those. here are the problems that i am facing :
- I have created a custom test object. But however I am not able to label the resource name like in the case of the OMA specified objects. How do i give a name for my resource ?
- Also if i make a resource observable then its value should change. So let me take a case of getting the current time. If i make it observable , then there should be a function that is autmatically getting the current time and putting it in the resource and hence i will be able to see the time changed. As of now , only the battery level changed and that too in the client , it s called. Is there any provision to make a function call once we make a resource observable ?
Please let me know about these two
Thanks and regards
Hari Raghav
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