I've posted a bunch of new documentation based on many of the forum discussion topics from the past few months. Here is biggies:

New REST Ops

I've added standard new operations to the REST protocol:

• nav: allows server to expose a "tree" for discovery and exploration
• pointWrite: command BACnet 16-level priority array
• invokeAction: fills same role as oBIX actions/user commands

I didn't post any previous discussion on these ops, so these are really just prototypes to play with and to provide feedback. I also beefed up docs for watchSub/watchPoll based on various conversations with engineers implementing these APIs.

Json

I've added a new JSON chapter for the specifying how to encode Haystack data in the "application/json" MIME type. Based on our discussion, I went with simple and clean versus 100% full fidelity with Haystack type system.

Points

I've really beefed up the docs on points to include:

• current real-time values (see 64)
• more tags for modeling historized values (see 63)
• writable points (see 64)
• enumerated points (see 52)

Didn't really get great resolution on historized tags, so better ideas welcome.

See Structure | Points

Coord

I added a new tag value type for coordinates per discussion 66

Change Log

• Allow tilde char to Refs
• Add ops: nav, pointWrite, invokeAction
• Beef up rules for ids and ordering of watchSub/watchPoll
• 50 Add Json chapter
• 52 Add Str/enum points
• 64 Add cur, writable, his point tags
• 63 Add hisInterpoalte, hisTotalized
• 66 Add Coord tag value type, replace geoLat/geoLon with geoCoord
• 76 Add geoCounty

Brian,

Looks good. Any ETA on getting nav and navId into nhaystack?

Cheers, Aaron Schuenemann

Aaron.... We are working on that right now, we actually are in beta starting today on it. It's really pretty cool, and working good.

We will be contributing it to opensource, and version 1 at the haystackconnect show this year (haystackconnect.org).

We are also doing a training and a session on it, I'm hoping you guys love nHaystack. It makes getting data out of Niagara way better, and faster. I can't wait to see what other people add to it.

The timing couldn't be better. We are anxiously awaiting the new features. I love what you guys have done to nHaystack already and I think the nav tag is probably our missing piece. At the very least it'll satisfy the customer's need for a representation of a physical hierarchy.

How do I get in this beta?!?

Aaron, I've sent you a copy of nhaystack version 0.9.1, check your email

I'd like to see that beta version, please ! :)

Christian.... Send us an email, and we will see what we can do. :}