Hi,
> Is there some sort of documentation where I can get all VPP methods avaible
> for API purpose.
>
> For example, he you used two methods - api.show_version and connect :
>
>> r = vpp.connect('papi-example')
>> rv = vpp.api.show_version()
>
> How can I be able to take a outlook of what methods are avaiable in order to
> build my own API?
You can look around the developer documentation, e.g.
https://docs.fd.io/vpp/21.01/df/dbb/api_lang_doc.html
Look at the doxygen generated documentation for the API files:
https://docs.fd.io/vpp/21.01/de/d94/gre_8api.html
Or just look at the .api files directly in the repo.
There are also language bindings for Python, Go, C (high and low level) and C++.
Best regards,
Ole
> -----Mensagem original-----
> De: Marcos - Mgiga <[email protected]>
> Enviada em: sexta-feira, 6 de novembro de 2020 12:56
> Para: 'Ole Troan' <[email protected]>
> Cc: 'vpp-dev' <[email protected]>
> Assunto: RES: RES: [vpp-dev] VPP API
>
> Thanks!
>
> -----Mensagem original-----
> De: [email protected] <[email protected]> Em nome de Ole Troan Enviada
> em: sexta-feira, 6 de novembro de 2020 04:51
> Para: Marcos - Mgiga <[email protected]>
> Cc: vpp-dev <[email protected]>
> Assunto: Re: RES: [vpp-dev] VPP API
>
> Hi,
>
>> It worked just fine, I decided to install a whole new OS and build VPP
>> once again and everything ran as expected.
>>
>> If I update Python version that is installed on system is it possible
>> that I will have any problem?
>
> I don't believe so. I use Python 3.8 on most systems.
>
> Cheers,
> Ole
>
>
>>
>> Best Regards
>>
>> -----Mensagem original-----
>> De: Marcos - Mgiga <[email protected]> Enviada em: quarta-feira, 4
>> de novembro de 2020 10:23
>> Para: '[email protected]' <[email protected]>
>> Cc: 'vpp-dev' <[email protected]>
>> Assunto: RES: [vpp-dev] VPP API
>>
>> Hello ,
>>
>> Thank you very much for help me out.
>>
>> I don't know if I gonna say something wrong, but by default VPP
>> installs Python 2.7, so I thought I wansn't able to choose which
>> version I would work with.
>>
>> About VPP I'm using V 20.09.
>>
>> Best Regards.
>> Marcos
>>
>> -----Mensagem original-----
>> De: [email protected] <[email protected]> Enviada em:
>> quarta-feira, 4 de novembro de 2020 05:02
>> Para: Marcos - Mgiga <[email protected]>
>> Cc: vpp-dev <[email protected]>
>> Assunto: Re: [vpp-dev] VPP API
>>
>> Hi Marcos,
>>
>> You can simplify the example a bit.
>> E.g. JSON files should be found in the default install directory.
>>
>> Which Python and VPP version are you using?
>>
>> I have not seen the logger issue you see.
>> Presumably you can work around it with import logging
>> logging.basicConfig()
>>
>>
>> If you have a source view, it should be possible to run the following
>> if you cd to src/vpp-api/python
>>
>> #!/usr/bin/env python3
>> from vpp_papi import VPP
>> vpp = VPP()
>> r = vpp.connect('papi-example')
>> rv = vpp.api.show_version()
>> print(f'VPP version = {rv}')
>> for intf in vpp.api.sw_interface_dump():
>> print(intf.interface_name)
>> r = vpp.disconnect()
>> exit(r)
>>
>>
>> Cheers,
>> Ole
>>
>>
>>> On 3 Nov 2020, at 21:22, Marcos - Mgiga <[email protected]> wrote:
>>>
>>> Hello There,
>>>
>>> I intend to start building a VPP API in order to make easier the
>>> processo
>> of managing VPP. So in order to take my first step I tried this tutorial:
>>> https://haryachyy.wordpress.com/2019/12/24/learning-vpp-python-api/
>>>
>>> It shows the following script which was supposed to show vpp
>> version,interfaces, etc:
>>>
>>> #!/bin/env python
>>>
>>>
>>>
>>> from __future__ import print_function
>>>
>>> import os
>>>
>>> import fnmatch
>>>
>>> import time
>>>
>>> from vpp_papi import VPP
>>>
>>>
>>>
>>> def papi_event_handler(msgname, result):
>>>
>>> print(msgname)
>>>
>>> print(result)
>>>
>>> vpp_json_dir = '/usr/share/vpp/api/'
>>>
>>> jsonfiles = []
>>>
>>> for root, dirnames, filenames in os.walk(vpp_json_dir):
>>>
>>> for filename in fnmatch.filter(filenames, '*.api.json'):
>>>
>>> jsonfiles.append(os.path.join(vpp_json_dir, filename))
>>>
>>> if not jsonfiles:
>>>
>>> print('Error: no json api files found')
>>>
>>> exit(-1)
>>>
>>> vpp = VPP(jsonfiles)
>>>
>>> r = vpp.connect('papi-example')
>>>
>>>
>>>
>>> rv = vpp.api.show_version()
>>>
>>> print('VPP version =', rv.version.decode().rstrip('\0x00'))
>>>
>>>
>>>
>>> for intf in vpp.api.sw_interface_dump():
>>>
>>> print(intf.interface_name.decode())
>>>
>>>
>>>
>>> async=True
>>
>>>
>>> r=vpp.register_event_callback(papi_event_handler)
>>>
>>> pid=os.getpid()
>>>
>>> sw_ifs = [2]
>>>
>>> r = vpp.api.want_per_interface_simple_stats(enable_disable=True,
>>> sw_ifs=sw_ifs, num=len(sw_ifs), pid=pid)
>>>
>>> print(r)
>>>
>>>
>>
>>>
>>> time.sleep(60)
>>>
>>> r = vpp.api.want_per_interface_simple_stats(enable_disable=False)
>>>
>>> r = vpp.disconnect()
>>>
>>> exit(r)
>>>
>>> But everytime I run it I only get the following error:
>>> No handlers could be found for logger "vpp_papi.vpp_papi.VPPApiClient"
>>> Traceback (most recent call last):
>>>
>>> Do you have any suggestion ?
>>>
>>> Best Regards
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
>
>
>
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