[SR-Users] Kamailio KEMI Framework Tutorial

Samuel F. samuel_is_kewl at hotmail.com
Fri Nov 24 13:43:52 CET 2017


Hey,


Just tested and it seems to work well! I compared the output to the output from app_lua to run some type of sanity check and it seems to show the same information.


However, there is one issue with the rpc app_lua.api_list, when running the RPC command it returns the result set twice so you get a msize of twice the msize of app_python and duplicated data.


// Samuel

________________________________
From: Daniel-Constantin Mierla <miconda at gmail.com>
Sent: Thursday, November 23, 2017 12:52:24 PM
To: Samuel F.; Kamailio (SER) - Users Mailing List
Subject: Re: [SR-Users] Kamailio KEMI Framework Tutorial


Hello,


I just pushed the rpc command app_python.api_list to master branch. Can you test and see if works? If all ok, then I will push it to branch 5.1 as well.


Cheers,
Daniel

On 23.11.17 08:31, Daniel-Constantin Mierla wrote:

Hello,

On 22.11.17 19:47, Samuel F. wrote:

Hi again,


Regarding RPC list: I do not think it is implemented for python?

it is not, indeed, I just looked at the code. I am not much into python myself, so it was overlooked -- I just added kemi support for it on top of the previous app_python.


I checked the source and couldn't find anything that would handle the RPC call:

kamctl rpc app_python.api_list

Regarding the documentation:
I didn't mean to document in the source code, sorry for not expressing myself clearly,

That was a proposal on the IRC devel meeting to add doxygen docs for kemi function, which is good to have anyhow, but for something with more details and examples, doxygen can become a mess.

 I ment to generate the Kemi function list documentation from the source code automatically via a script instead of updating it manually (so the documentation doesn't become stale). One example could be to run the RPC api_list and take that list to generate a documentation file that shows all available functions. I tried to check that out now but couldn't get it working for python because I think the command is missing (v5.0.4).

So to condense my proposal on how we could structure the KEMI docs I would suggest:
- General documentation about how KEMI works: As it is now, great
- Document special functions that are only implemented in KEMI /or differs from the original module implementation: As it is now, great
- Not have sections for each and every module, just one section with a long list of exported KEMI functions with a link to the original documentation

I'm happy to take a shot at generating a script for this but would need help to understand how I can export the python API list.

I am going to add the rpc command to app_python, then you can try to build your tool for it.

Cheers,
Daniel


// Samuel

________________________________
From: Daniel-Constantin Mierla <miconda at gmail.com><mailto:miconda at gmail.com>
Sent: Tuesday, November 21, 2017 3:20:21 PM
To: Samuel F.; Kamailio (SER) - Users Mailing List
Subject: Re: [SR-Users] Kamailio KEMI Framework Tutorial


Hello,

On 21.11.17 10:20, Samuel F. wrote:

Hi Daniel,


First, I'd just like to say thanks and let you know we are very grateful for the KEMI framework. We have developed three small applications running on python KEMI in production serving calls every day successfully without any issues at all. The development process was very smooth and quick.

thanks for the feedback, really appreciated! It is good to know that KEMI is being used in production and also it shows its potential for various needs.



I reviewed the documentation and think it's great that the KEMI framework gets an extensive documentation.


One thought I had regarding documenting the exported functions is that I think it's good if they are exported to the docs automatically from the source code. My opinion is that it is better to have documentation that reflects the current state of the source code rather than having stale/out-of-date documentation.


Perhaps having a parser that locates all the exported functions, lists them in appropriate modules with the return value and then a link to the actual modules documentation?

There is an RPC command that lists the exported KEMI functions for a running Kamailio. It reflects exactly what functions are available from the kemi framework internal structure. This is like an auto discovery, it is done automatically.

Addition docs can be added in the code using doxygen, however, while that is good for short descriptions, I don't find it good to add extensive docs and especially usage examples in the code. Also, from past experiences, non-developer users tend not to look at the code, therefore the improvements to docs in code from general users are very low.

Anyhow, this tutorial was started with the initial goal of covering the KEMI framework in general, and the special functions. For the functions exported by modules I added only the acc as an example (which is also a skeleton at this moment).

As I said, I am open for suggestions on how to do the docs for kemi functions from modules. Your proposal with using somehow the code is not like being dismissed, I just expressed my opinions based. Contributions to parse the code and extract prototypes are of course welcome.

Cheers,
Daniel




// Samuel

________________________________
From: sr-users <sr-users-bounces at lists.kamailio.org><mailto:sr-users-bounces at lists.kamailio.org> on behalf of Daniel-Constantin Mierla <miconda at gmail.com><mailto:miconda at gmail.com>
Sent: Monday, November 20, 2017 4:11:54 PM
To: Kamailio (SER) - Users Mailing List; Kamailio (SER) - Devel Mailing List
Subject: [SR-Users] Kamailio KEMI Framework Tutorial

Hello,

I started a tutorial for Kamailio KEMI Framework written in markdown
format targeting use of mkdocs. It is published on github as part of
kamailio-docs repository:

  *
https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fkamailio%2Fkamailio-docs%2Ftree%2Fmaster%2Fkamailio-kemi-framework&data=02%7C01%7Csamuel_is_kewl%40hotmail.com%7C226fe2242ed4436c13fa08d53029444d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636467876150276887&sdata=MuTy1ZgjcDEbQdHTGA2LpO1sKUDAxxo%2BupwGr%2BBspCE%3D&reserved=0

The mkdocs build (to browse and read) is online at:

  * https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fkamailio.org%2Fdocs%2Ftutorials%2Fdevel%2Fkamailio-kemi-framework%2F&data=02%7C01%7Csamuel_is_kewl%40hotmail.com%7C226fe2242ed4436c13fa08d53029444d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636467876150276887&sdata=FHJ1zANtLQI6o2%2F1wFPFYfu1B94JlQ%2FHTLDbaVp7dUg%3D&reserved=0

It is work in progress and contributions from the community are more
than welcome -- doing push requests on github project is the recommended
way for contributions:

  * https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fkamailio%2Fkamailio-docs%2F&data=02%7C01%7Csamuel_is_kewl%40hotmail.com%7C226fe2242ed4436c13fa08d53029444d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636467876150276887&sdata=utRI9tOvpEuyBWFU70KaBaod6URNk0ju4rTSQl%2FhO3I%3D&reserved=0

The main goal is document the role of KEMI, its benefits and how it can
be used. It addition it should cover the list of functions exported to
KEMI by core as well as special KEMI functions.

Regarding the functions exported by kamailio modules to KEMI I added as
an skeleton the ones exported by acc module. However, I am not sure if
we should do it there or add them to the existing docs of the modules.
Opinions on this?!?

Cheers,
Daniel

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