Import JSON data from morph.io via rake task

Usage: 
MORPH_API_KEY=‘your key’ b rake import_papers:from_morph

app/models/paper.rb

@@ -1,16 +1,16 @@
-require 'csv'
+require 'json'
 
 class Paper < ActiveRecord::Base
   class << self
-    def import_from_csv(csv_string)
-      CSV.parse(csv_string, headers: true) do |row|
+    def import_from_json(json_string)
+      JSON.parse(json_string).each do |record|
         attributes = {
-          name: row['name'],
-          url: row['url'],
-          reference: row['reference'],
-          paper_type: row['paper_type'],
-          originator: row['originator'],
-          published_at: row['published_at'],
+          name: record['name'],
+          url: record['url'],
+          reference: record['reference'],
+          paper_type: record['paper_type'],
+          originator: record['originator'],
+          published_at: record['published_at'],
         }
         create!(attributes)
       end

lib/tasks/import_papers.rake

@@ -1,7 +1,11 @@
 namespace :import_papers do
 
   desc 'Import Paper records from CSV'
-  task :from_csv, [:csv_file] => :environment do |t, args|
-    Paper.import_from_csv(File.read(args[:csv_file]))
+  task :from_morph => :environment do |t, args|
+    require 'open-uri'
+    api_key = ENV['MORPH_API_KEY']
+    uri = URI.parse "https://api.morph.io/ahx/city_council_leipzig_recent_papers/data.json?key=#{api_key}&query=select%20*%20from%20%27data%27%20limit%2010"
+    puts "Download files from #{uri}…"
+    Paper.import_from_json(uri.read)
   end
 end