diff --git a/app.rb b/app.rb
index 0e3a1f8c..861485a5 100644
--- a/app.rb
+++ b/app.rb
@@ -29,16 +29,13 @@ class LedgerRbApp < Sinatra::Base
     Ledger.accounts( params[ :depth ] ).to_json
   end
 
-  get '/api/ledger/register/:period/?' do
-    param :period, String, required: true, within: [ 'yearly', 'monthly' ]
-    param :categories, Array, default: Ledger.accounts( 1 )
+  get '/api/ledger/register/?' do
+    param :period, String, default: nil
+    param :category, String, required: true
 
-    params[ :categories ].map do
-      |category|
-      cat = category.first
-      { key: cat,
-        values: Ledger.register( cat, "--#{params[ :period ]}" ) }
-    end.to_json
+    { key: params[ :category ],
+      values: Ledger.register( params[ :period ], params[ :category ] ) }
+      .to_json
   end
 
   get '/api/ledger/balance/?' do
diff --git a/lib/ledger.rb b/lib/ledger.rb
index beef7b3d..81275509 100644
--- a/lib/ledger.rb
+++ b/lib/ledger.rb
@@ -1,5 +1,7 @@
 # encoding: utf-8
 
+require 'csv'
+
 # Ruby wrapper module for calling ledger
 module Ledger
   module_function
@@ -25,26 +27,21 @@ module Ledger
     end.uniq
   end
 
-  def register( category, options='' )
-    run( "#{options} --collapse --amount-data --exchange '#{CURRENCY}'", 'register', "#{category}" )
-      .split( "\n" )
-      .map do |line|
-      line_array = line.split
+  def register( period = nil, categories = '' )
+    period = period.nil? ? '' : "-p '#{period}'"
 
-      [ Time.new( line_array[ 0 ] ).to_i,
-        line_array[ 1 ].to_f ]
+    CSV.parse( run( "--exchange '#{CURRENCY}' #{period}", 'csv', categories ) )
+       .map do
+      |row|
+      { date: row[ 0 ],
+        payee: row[ 2 ],
+        account: row[ 3 ],
+        amount: row[ 5 ],
+        currentcy: row[ 4 ] }
     end
   end
 
-  def monthly_register( category )
-    register category, "--monthly"
-  end
-
-  def yearly_register( category )
-    register category, "--yearly"
-  end
-
-  def balance( cleared=false, depth=nil, period=nil, categories='' )
+  def balance( cleared = false, depth = nil, period = nil, categories = '' )
     period = period.nil? ? '' : "-p '#{period}'"
     depth = depth.nil? ? '' : "--depth #{depth}"
     operation = cleared ? 'cleared' : 'balance'