Hi Sebastian,

first, welcome to the Olingo community  ;o)

Second, actual Olingo supports (for server use case) basic read scenarios and 
we are working on the write (CUD) parts (which will be hopefully included in 
upcoming 4.0.0-beta-02 release).
In the server part of the library getting entities by id (over the entity set) 
is already support. A missing feature is to address an entity with '$id' (e.g. 
http://host/service/$entity?$id=Products(0)) as well as the operations 
(functions/actions).

With the upcoming "4.0.0-beta-02" release and a more stable API we plan to 
update the Olingo homepage with more documentation and tutorials. An good idea 
would be to add a roadmap what features are actual planned to be included in 
the stable "4.0.0" release.

I hope this answers your questions and help you to get more involved into 
Olingo and the community around.

Kind regards,
Michael

PS: And as always, contributions in form of code, bugfixes and documentation 
are really welcome  ;o)



> On 08 Jan 2015, at 20:05, Sebastian Samaruga <[email protected]> wrote:
> 
> Hi, I'm new developing with the OData protocol and started playing with the
> Olingo implementation.
> 
> What I'm currently attempting to develop is a DOM (Dynamic Object Model) or
> generic-entities CRUD implementation over  OData. So, my DataProvider works
> implemented over generic data sources and no  static schema or model.
> 
> As long as I go with the implementation I could get acceptable service
> document and metadata document. I can also browse the types and the
> collections/sets of instances of a type.
> 
> I'm currently motivated using the Olingo implementation. I would like to
> know how far is the V4 of the protocol implemented (I'm currently using
> beta-2). For example, I could not get to work getting entities by their
> ids. And I don't know if this is my misusing the framework. I have also
> similar problems with actions and functions, which get advertised into the
> metadata document but I don't know where to implement their (generic)
> functionality or even get them invoked (what I get is allways a type not
> found exception, like if the name of the function where an entity type
> name).
> 
> Sorry of my part for any ignorance, I'm just starting and I would like to
> get involved. Best,
> Sebastian.

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