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geodude - scala-geocoder

Geocode, a scala wrapper for reverse geocoding. This was born because I needed to bring in a lot of data and tag it with lat / lng. In testing / etc.. I keep hitting limits and/or API's were down so I created a cached geocoder with different backend implementations

goals

To let you use geocoders without writing wrappers and allowing you to switch them out. Also giving you a cache so you never don't need to geocode twice.

Usage: Add to sbt or maven

"libraryDependencies += "com.github.hjast" % "geodude_2.10" % "0.2.0"

or for maven

<dependency>
  <groupId>com.github.hjast</groupId>
  <artifactId>geodude_2.10</artifactId>
  <version>0.2.0</version>
</dependency>"

usage

Simple usage

import geodude._
val str = googleMaps.location("690 Prospect PL, Brooklyn, NY")
					  .map(loc => "%s is at %s lat and %s lng" format(loc.name, loc.lat, loc.lng))
					  .getOrElse("Geocoding could not find address")

println(str)

Slightly more complicated using a cache.

import geodude._

val geo = InMemoryCachedGeocoding(googleMaps)

/** This only hits the geocoding once **/
val latLngs = (for {
  r <-  0 until 10
  loc <- geo.location("690 Prospect Pl, Brooklyn, NY")
} yield {
   println("%s is at %s lat and %s lng" format(loc.name, loc.lat, loc.lng))
   loc
})

This example shows cascading between geocoders if one does not find

googleMaps.location("Some crazier address").openOr(openStreetMaps.location("690 Prospect Pl"))
/** Returns full box with 690 Prospect Pl **/

todos

  • Switch to dispatch reboot + make these futures.
  • Add in support for a generic caching layer (??).
  • Add in support for other map operations.
  • Document the mongo backing.
  • Write tests