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CouchDB and Nodejs The new GeoData tool set Mick Thompson @dthompson FOSS4G 2011

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CouchDB Apache Project Couchbase Hosted

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CouchDB Document store JSON over HTTP MapReduce in Javascript Views based on B-tree

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GeoCouch R-tree Spatial views GeoJSON

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GeoCouch How to get it on github - build Couchbase Iris Couch

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Nodejs Javascript Server-side Asynchronous

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Nodejs Features non-blocking javascript built with the web in mind

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Geo in Nodejs node-geos geohash geocoder mapnik postgresql

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Mapchat mapchat.im github.com/dthompson/mapchat

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Hello world of node

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GeoTrack iPhone app that tracks location POST to nodejs http server Save to CouchDB Broadcast to subscribed clients

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iOS Dont judge my iOS code :)

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iOS Core Location Background Location Geofencing, significant change

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Socket.io websockets with failback - flash socket - xhr long polling

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Socket.io

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Express light web framework adds functionality to httpserver

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Express

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Nodejs -> CouchDB HTTP - request Cradle -simple -caching

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Cradle

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geocouch-utils common spatial views - data formats - radius queries - proximity clustering https:/ /github.com/vmx/geocouch-utils

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Design docs Controls view & list functions Yet another JSON doc

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Design Docs

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Couchapp command line deploy design documents

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Couchapp

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Couchapp http:/ /couchapp.org

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Node.CouchApp.js https:/ /github.com/mikeal/node.couchapp.js Fewer files, define multiple views in 1 .js Node.js sync

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Spatial Views

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Spatial View /geotrack/_design/gc-utils/_spatial/geoms? bbox=-180,-90,180,90

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Spatial View *Cradle doesn’t yet support this

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Bounding Box

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Location update

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Geotrack http:/ /geotrack.mapchat.im http:/ /github.com/dthompson/geotrack

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Thanks Mick Thompson [email protected] @dthompson github.com/dthompson