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• W3C Gen2 protocol (VISS Websocket Pub/Sub)
• Options:
  
  • Investigate Sanjeev's work for reusable client
  • Curl script
  • Custom code + HTTP library (e.g. written in python) custom code + libcurl binding
  • Client directory from MEAE-GOT/W3C ?
  • No clear answer.  Depends on use-case.  What is the rate of data for example?
  • Sanjeev: It would make sense to write also client in Go.
• This program shall also store the data into the data lake program (or directly into the database used as data lake)

Written in Go, some similar code as in W3C Gen 2 reference server

  Demo includes this function already..  In ccs-client repo.
Reads data from data server in vehicle and writes it into the database.

• Selection of libraries and database
  • Define database schema → Start with Ulf's proposal for DB schema

Gunnar: I have some experience setting up Postgres, so this is a reasonable option.
Ulf: A Go library to support Postgres exists, so this is only a small rewrite.

• Custom control code (Python or C++)
• + Sqlite binding, OK for PoC, or other database such as postgresql.
  • Need to define database schema first → proposal is here

 Implemented in In ccs-client repo.

In production more likely to be an object store database instead of a RDBS.

Sanjeev looking at Apache ecosystem and Hortonworks/Cloudera platform capabilities.

Ulf

• Implementation of end-user login and authentication using OpenID
  
  • Lots of candidates.  Responsible implementer should propose a good alternative.

• Implementation of authorization between end-user and 3rd party application or Neutral Server using OAuth2

• Implementation of basic API management
• Resource Mgmt is the ExVe naming.
• Implementation of a GraphQL API using the VSS2 schema 
• Interface to the client, is of course defined by GraphQL+schema.
• Interface to database (GraphQLDatabaseIF) is described above

GraphQL → Apache Apollo?

•  Has one schema.
•  Does not have tool to regenerate schema.
•  Has Apollo server in docker

(Alexander Domin)