[Fiware-tech-help] Queries related to SmartCity Project using Fiware

[Juanjo Hierro]

Dear Krishan,

   Thank you for your interest in FIWARE.

   I hope some of my colleagues will come with a detailed answer 
regarding the issue with FIWARE Lab credentials you raised.   I just 
pretend here to respond some of the other questions.

   You don't need to deploy all the GEs you list in order to setup a 
complete operational "Powered by FIWARE" IoT-enabled platform architecture.

   It should be enough to have:

  * Orion Context Broker (this is the core component you are required to
    have in a platform to actually claim it is "Powered by FIWARE")
  * Backend Device Management IDAS - here you have two options:
      o either some of the already existing IDAS IoT Agents works for
        your scenarios
      o or you have to develop a new IoT Agent using the IDAS Framework
        for development of IDAS IoT Agents

   With this approach, it should be enough.

   Of course, there are other components of FIWARE you may want to use 
to configure a more complete "Powered by FIWARE" Smart City platform.  
As an example, I mention here some examples:

  * CKAN extensions to support right-time open data: these are a number
    of plug-ins for CKAN (most widely open data publication platform
    adopted by many cities worldwide and particularly in Europe)
    enabling the publication of query resources on the Orion Context
    Broker as right-time open data resources.
  * Cygnus, in order to transfer history of Context Data managed by
    Orion into multiple data sinks (e.g., a Hadoop BigData system to
    perform bigdata analysis on Context history).
  * Perseo, in order to perform Complex Event Processing on top of
    Context data
  * etc

   If you wish, we can setup a confcall so that we can explain to you 
the reference architecture for "Powered by FIWARE" Smart City platforms 
and opportunities for collaboration.

   Hope it helps,

   Cheers,

   Juanjo


On 18/01/2018 10:33, Krishan Babbar wrote:
>
> Hi All,
>
> I am working with FiWare to setup a Smart City project.
>
> As per my understanding so far, we need following GEs (considering 
> minimum requirement)
>
> - Orion Context Broker
>
> - IoT Broker
>
> - Backend Device Management - IDAS
>
> - IoT Agent - having python script (At my local machine)
>
> I have following queries so far.
>
> - Do let me know what other GEs I need to install?
>
> - Can we install all required GEs on same instance (On Fiware cloud)?
>
> - Do let me know if I need to follow any particular steps and sequence?
>
> - How GEs interconnect with each other? Is there any configuration? 
> E.g. How IoT Broker and Orinon Context Broker communicate?
>
> - I am following with 
> https://fiware-orion.readthedocs.io/en/develop/quick_start_guide/index.html. 
> Here what would be the credentials and URL to get the oAUTH token? I 
> am using following with my Fiware LAB account credentials and these 
> are not working.
>
> *RESP=`curl -s -d "{\"username\": \"$USER\", 
> \"password\":\"$PASSWORD\"}" -H "Content-type: application/json" 
> https://orion.lab.fiware.org/token`*
>
> - After installation of all GEs, I will do following steps. Please 
> correct if I am wrong.
>
> - Using IoT Agent python scripts, create required Entities/Models.
>
> - Update attributes of the entity
>
> - Fetch the entities
>
> - Subscriptions
>
> Thanks & Regards,
>
> *_Krishan Babbar_*
>
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