[hibernate-dev] [OGM] Bolt vs Rest for Neo4j

[Emmanuel Bernard]

Can you write a blog post with a small poll to know if anyone complains
about dropping REST. Let's have it on for a week and make a decision. If
nothing conclusive comes out, let's drop it.

On Fri 2016-08-26  8:27, Davide D'Alto wrote:
> > Thinking out loud. How much additional work would it be to keep the "old" rest in a legacy module
> 
> It would still require to be maintained, I would prefer not to have it
> unless there is a specific use case for it
> 
> >. Does Bolt run atop HTTP as I remember it
> 
> I don't think so, it's a binary protocol that connects to a port using sockets.
> 
> > PS: it's a bit sad that we implement something (rest remote) and it's ready and by lack of release it is replaced and remove it without seeing the light of day. Release often.
> 
> That's actually a bad call from my side, I wanted to release with the
> new ORM and it took longer than expected to merge the PR.
> 
> Davide
> 
> On Fri, Aug 26, 2016 at 7:53 AM, Emmanuel Bernard
> <emmanuel at hibernate.org> wrote:
> > Thinking out loud. How much additional work would it be to keep the "old" rest in a legacy module separated from the pure one?
> > Does it even make sense?
> >
> > I'm fine with the removal and focus on bolt on a general basis. Does Bolt run atop HTTP as I remember it ? Or is that specific ? If the later some might want to keep using rest.
> >
> > Emmanuel
> >
> > PS: it's a bit sad that we implement something (rest remote) and it's ready and by lack of release it is replaced and remove it without seeing the light of day. Release often.
> >
> >> On 22 août 2016, at 22:25, Guillaume Smet <guillaume.smet at gmail.com> wrote:
> >>
> >> Hi Davide,
> >>
> >> I wanted to add 2 things:
> >> - Neo4j remote with Rest has not been released yet;
> >> - if we remove the Rest protocol, remote Neo4j will only be supported with
> >> Neo4j >= 3
> >>
> >> Personally I'm +1 to only support remote Neo4j with Bolt. Maintaining one
> >> more dialect/protocol just to provide remote for Neo4j < 3 does not sound
> >> like a good tradeoff to me.
> >>
> >> --
> >> Guillaume
> >>
> >>> On Mon, Aug 22, 2016 at 8:11 PM, Davide D'Alto <davide at hibernate.org> wrote:
> >>>
> >>> Hello,
> >>> at the moment in OGM we connect remotely using the Rest API.
> >>> The reason is that when I created the dialect the new Bolt[1] protocol
> >>> wasn't available.
> >>>
> >>> I've now finished implementing the dialect so that it uses the Bolt
> >>> protocol, there is a lot of duplication since it is very similar to
> >>> the approach I used for Rest.
> >>>
> >>> I worked for a while trying to improve the code but I started to
> >>> wonder if it might be really helpful to provide two ways to connect
> >>> remotely with an increase in complexity of the code (more interfaces
> >>> mainly with some additional classes).
> >>>
> >>> I'm now of the idea that we could remove the dialect thata uses Rest
> >>> and only keep the one that uses Bolt (as suggested by Giulliame in an
> >>> old chat on hipchat).
> >>>
> >>> This will simplify the code and we can always add it back if the need
> >>> arise or somebody asks.
> >>> Note that the Bolt protocol is the suggested one to use for Neo4j
> >>> since it promises better performance.
> >>> It will also allow us to remove some dependencies required for the rest
> >>> client.
> >>>
> >>> Please, let me know if you think there is value in keeping  both
> >>> approaches, otherwise I'm going to send a PR that removes the remote
> >>> one.
> >>>
> >>> Thanks,
> >>> Davide
> >>>
> >>> [1]  https://dzone.com/articles/introducing-bolt-neo4js-
> >>> upcoming-binary-protocol-p
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