Initial commit

app/api/v2/coin_gecko/historical_trades.rb

@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+module API
+  module V2
+    module CoinGecko
+      class HistoricalTrades < Grape::API
+        desc 'Get recent trades on market'
+        params do
+          requires :ticker_id,
+                   type: String,
+                   desc: 'A pair such as "LTC_BTC"',
+                   coerce_with: ->(name) { name.strip.split('_').join.downcase }
+          optional :type,
+                   type: String,
+                   values: { value: %w(buy sell), message: 'coingecko.historical_trades.invalid_type' },
+                   desc: 'To indicate nature of trade - buy/sell'
+          optional :limit,
+                   type: Integer,
+                   values: { value: 0..1000, message: 'coingecko.historical_trades.invalid_limit' },
+                   desc: 'Number of historical trades to retrieve from time of query. [0, 200, 500...]. 0 returns full history'
+          optional :start_time,
+                   type: Integer,
+                   desc: '',
+                   coerce_with: ->(start_time) { Time.parse(start_time).to_i }
+          optional :end_time,
+                   type: Integer,
+                   desc: '',
+                   coerce_with: ->(end_time) { Time.parse(end_time).to_i }
+        end
+        get '/historical_trades' do
+          market = ::Market.find(params[:ticker_id])
+
+          filters = declared(params, include_missing: false)
+                    .except(:ticker_id, :limit)
+
+          Trade.public_from_influx(market.id, params[:limit], filters).each_with_object({'buy' => [], 'sell' => []}) do |trade, hash|
+            hash[trade[:taker_type]] << format_trade(trade)
+          end
+        end
+      end
+    end
+  end
+end