RE: Hydra W3C Community Group Telecon Minutes for 2017-09-04

Awesome! Thanks Akshay

 

I really loved the way Chris live coded the server yesterday. Do you guys think you could record a YouTube video of that and/or put together a blog post describing that? That would be a great way to promote the work you did.

 

 

Thanks,

Markus

 

 

 

From: Akshay dahiya [mailto:xadahiya@gmail.com] 
Sent: Monday, September 4, 2017 10:22 PM
To: Markus Lanthaler <markus.lanthaler@gmx.net>
Cc: public-hydra@w3.org
Subject: Re: Hydra W3C Community Group Telecon Minutes for 2017-09-04

 

Hi Markus,

 

I've updated the simulation server, now the simulation is being reset every 2 hours, should be good enough for demo purposes. Please let me know if there's anything else.

 

Simulation GUI Link - http://104.197.234.187:5000/

Central Controller Link - http://104.197.234.187:8080/api/

 

Drones - http://104.197.234.187:8081/api/ , http://104.197.234.187:8082/api/, http://104.197.234.187:8083/api/, http://104.197.234.187:8084/

 

Greetings

Akshay

 

 

On Sep 5, 2017 12:45 AM, "Markus Lanthaler" <markus.lanthaler@gmx.net <mailto:markus.lanthaler@gmx.net> > wrote:

Thanks Chris and Akshay for the presentation in the telecon today and the
awesome work during Google Summer of Code. Thanks also to Pavlik for
scribing. The minutes from this week's telecon are now available at

   http://www.hydra-cg.com/minutes/2017-09-04/

The full text of the discussion is below, including a link to the audio
transcript.


-------------------------------------------------------------------
Hydra W3C Community Group Telecon Minutes for 2017-09-04

Agenda:
  https://www.w3.org/community/hydra/wiki/Conference_Calls
Topics:
  1. Hydra Python Google Summer of Code
  2. Follow-up on action items
Chair:
  Markus Lanthaler
Scribe:
  elf Pavlik
Present:
  elf Pavlik, Markus Lanthaler, Akshay Dahiya, Chris Andrew,
  Lorenzo Moriondo
Audio:
  http://www.hydra-cg.org/minutes/2017-09-04/audio.mp3


Chris Andrew: Here is the presentation I will be using in the
  call today

https://docs.google.com/presentation/d/1NLbRM4M5boVY1d0aTMP9uXomIamClN0k5l9X <https://docs.google.com/presentation/d/1NLbRM4M5boVY1d0aTMP9uXomIamClN0k5l9X4pInRIU/edit?usp=sharing> 
4pInRIU/edit?usp=sharing
elf Pavlik: Hello, Lorenzo will you also join the voice call ?
Markus Lanthaler: Lorenzo, will you be able to dial in?
elf Pavlik is scribing.

Topic: Hydra Python Google Summer of Code

Chris Andrew:  I will screenshare slidedeck linked above
Markus Lanthaler:

https://docs.google.com/presentation/d/1NLbRM4M5boVY1d0aTMP9uXomIamClN0k5l9X <https://docs.google.com/presentation/d/1NLbRM4M5boVY1d0aTMP9uXomIamClN0k5l9X4pInRIU/edit?usp=sharing> 
4pInRIU/edit?usp=sharing
Chris Andrew:  Hydrus uses HTTP Authorization header
  ... we use triples but we modified them a bit
  ... instance predicates ans abstract predicates
Chris Andrew:  I'll show you how to setup server using Hydrus
  ... first we setup connection to the database (sqlalchemy)
  ... now we need to create all the models hydrus needs
  ... then we use hydrus doc_maker to create api documentation
  ... hydrus app factory returns flask object with routes
  ... remember that we basically get flask application
Markus Lanthaler:  does this server also supports CRUD operations
  ?
Chris Andrew:  you have to specify those operations in api
  documentation
Markus Lanthaler:  so POST will also resolve in new item?
  ... I see you use schema.org <http://schema.org>  action types
Chris Andrew:  you can specify whatever type you want over there
Akshay Dahiya:

https://docs.google.com/presentation/d/1GlN7URXyVFl8UufjBf3SUyG8PVSKTHHljg4n <https://docs.google.com/presentation/d/1GlN7URXyVFl8UufjBf3SUyG8PVSKTHHljg4n4LiWETw/edit?usp=sharing> 
4LiWETw/edit?usp=sharing
Akshay Dahiya:  we wanted to demonstrate it in some interesting
  way
  ... we created simulation of drones which detect fires in some
  geo area
  ... central controler - hydrus instance, all drones send their
  data to it
  ... demo of the GUI of Hydra Flock Demo
Akshay Dahiya: http://104.197.234.187:5000/
Markus Lanthaler:  how often do the drones check api
  documentation
  ... if during operation it changes would they figure it out?
Akshay Dahiya:  i don't think you can change it during operation
  they get it during initialization
Markus Lanthaler:  do you plan to write a blog post about it?
Chris Andrew:
  https://gsocchrizandr.wordpress.com/the-book-of-hydrus/
Akshay Dahiya: xadahiya.github.io <http://xadahiya.github.io> 
elf Pavlik:  Thanks for the demo [scribe assist by Markus
  Lanthaler]
  ... do you consider to have a live public demo so that people
  from the CG can go and play with it
  ... without having to set up anything
Chris Andrew:  We actually set up a AWS server but it needs some
  config [scribe assist by Markus Lanthaler]
elf Pavlik:  Right, that's what I meant. Set it up with this demo
  [scribe assist by Markus Lanthaler]
Chris Andrew:  Yeah, we could do that [scribe assist by Markus
  Lanthaler]
elf Pavlik:  Are the properties in the EntryPoint instances of
  hydra:Link? [scribe assist by Markus Lanthaler]
Akshay Dahiya:  So you are asking how the client discovers the
  various endpoints? [scribe assist by Markus Lanthaler]
elf Pavlik:  yes [scribe assist by Markus Lanthaler]
elf Pavlik:  How do you link from the entry point to the anomaly
  collection? [scribe assist by Markus Lanthaler]
Akshay Dahiya:  Here you see the properties, they are instances
  of hydra:Link [scribe assist by Markus Lanthaler]
Lorenzo Moriondo:  Is this the correct way to do it? [scribe
  assist by Markus Lanthaler]
elf Pavlik:  yes [scribe assist by Markus Lanthaler]
Lorenzo Moriondo:  great job, well done. I'm really proud [scribe
  assist by Markus Lanthaler]
Markus Lanthaler:  I agree, please share it more broadly
  ... i'll tweet about it
Akshay Dahiya:  we use sqlite but i plan to change it to
  postgresql
  ... this will support larger quantities of loads
Markus Lanthaler:  i hope we can have public demo running
  somewhere

Topic: Follow-up on action items

Markus Lanthaler:  Pavlik, do you have an update? [scribe assist
  by Markus Lanthaler]
https://github.com/HydraCG/Specifications/pull/136
Akshay Dahiya: http://xadahiya.github.io/
elf Pavlik:  I created a first PR.. waiting for feedback [scribe
  assist by Markus Lanthaler]
Markus Lanthaler:  sorry, slipped under my radar [scribe assist
  by Markus Lanthaler]
Markus Lanthaler:  anything else for today? any questions
  comments...
Chris Andrew:  for authorization / authentication we used
  Authorization header
  ... does any other ways to support auth in APIs ?
Markus Lanthaler:  currently hydra doesn't have anything specific
  to authorization
Chris Andrew:  what we currently do not secure unless we use TLS
  ... HTTP Authorization header
Markus Lanthaler:  thanks a lot again for the awesome demo!
Lorenzo Moriondo: Thanks guys. See you next time!