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From Otto Fowler <ottobackwa...@gmail.com>
Subject Re: [DISCUSS] METRON-994 -> Rest v. Stellar ( api of record )?
Date Fri, 07 Jul 2017 18:44:38 GMT
The issue ( if we agree that there is one ) is that we are going to face
dual implementation of management type functions in both stellar and rest.
 *If* we think it is important to have one base API we should pick Stellar
or Rest.


On July 7, 2017 at 13:01:18, Nick Allen (nick@nickallen.org) wrote:

> Are we talking about exposing an endpoint that just executes a stellar
statement?

No, that is not the case AFAIK, Ryan.

I see Otto's PR as more of a discussion around how to go about implementing
Management-ish functionality in the REST API. I think the goal here is
just to get consensus on an approach, not necessarily code.

At least that's my understanding because there is no mention of specific
management functionality in the JIRA that needs changed or added. Correct
me, if I misstated Otto.





On Fri, Jul 7, 2017 at 12:42 PM, Ryan Merriman <merrimanr@gmail.com> wrote:

> Makes sense to me. Are we talking about exposing an endpoint that just
> executes a stellar statement? We already have one but it's scope is
> limited to applying stellar transformations to a sample message. Assuming
> we would just add on to that controller. What Jiras are going to come out
> of this discussion?
>
> I'm all for adding as many rest endpoints as possible. It makes our
> platform much easier to understand and use for people who are not experts
> on Metron internals.
>
> > On Jul 7, 2017, at 11:07 AM, Otto Fowler <ottobackwards@gmail.com>
> wrote:
> >
> > Anyone else have feelings?
> >
> >
> > On July 7, 2017 at 11:06:32, Nick Allen (nick@nickallen.org) wrote:
> >
> > Like you mentioned, Otto, I think it makes more sense to have a REST
API
> > that is backed by Stellar functions executed in a JVM. That is, the
REST
> > API simply executes the right Stellar functions in a JVM. This makes it
> > very simple to reuse the same implementation (Stellar functions) across
> > multiple contexts; the REPL, Streaming, and in a REST API.
> >
> >
> >
> > On Sun, Jul 2, 2017 at 10:06 AM, Otto Fowler <ottobackwards@gmail.com>
> > wrote:
> >
> >> Bump
> >>
> >>
> >>> On June 13, 2017 at 00:11:52, Otto Fowler (ottobackwards@gmail.com)
> >> wrote:
> >>
> >> I have opened METRON–994 <https://issues.apache.org/
> jira/browse/METRON-994
> >> : STELLAR Shell and management should front the METRON REST api
> >>
> >> As Stellar management functions start overlapping with the REST api,
we
> > may
> >> want have stellar management backed by rest, and have a single main
api
> -
> >> rest.
> >>
> >> Nick brings up an excellent point that we should consider doing the
> >> opposite, back the rest api with the stellar implementation.
> >>
> >> After a little thought, I believe that this approach may have the
> > greatest
> >> pay off long term, as it will result (hopefully) in an increase of the
> >> number of STELLAR commands, that may be leveraged in different
contexts.
> >>
> >> But, I think this issue warrants more discussion from the group.
> >>
> >> The questions as I can see them (please add more or correct me ) are:
> >>
> >> - Should Stellar have a api which is fronted by multiple front ends?
> >> - If so, which is better suited, REST, STELLAR or other?
> >> - What are some trade offs | pay offs with each approach?
> >>
>

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