Starting port of c-busqueda, not finished

c-busqueda/handler.cr

@@ -1,7 +1,14 @@
-require "http/request"
+require "http/client"
 require "http/headers"
+require "http/request"
 require "ishi/html"
 require "json"
+require "uuid"
+require "db"
+require "pg"
+
+USER = File.read("/var/openfaas/secrets/nombres-user").strip
+PASS = File.read("/var/openfaas/secrets/nombres-pass").strip
 
 class Handler
   def format_buffer(buffer, canvas_name, title = "")
@@ -35,23 +42,21 @@ class Handler
   end
 
   def query(sql)
-    # Runs a SQL query against the Rqlite database.
+    # Runs a SQL query against the database.
     #
-    # Returns an array of values (which need to be casted)
+    # Returns an array of values [[Year,Count]...]
     # Or nil if there are no results
 
-    params = URI::Params.encode({"q": sql})
-    response = HTTP::Client.get URI.new(
-      "http",
-      "10.61.0.1",
-      4001,
-      "/db/query",
-      params)
-
-    # This API only has a values key when there are actual results
-    results = JSON.parse(response.body)["results"][0].as_h
-    if results.has_key?("values")
-      return results["values"].as_a
+    DB.open("postgres://#{USER}:#{PASS}@10.61.0.1:5432/nombres") do |db|
+      db.query sql do |rs|
+        result = [] of Tuple(Int32, Int32)
+        rs.each do
+          year = rs.read(Int32)
+          contador = rs.read(Int32)
+          result.push({year, contador})
+        end
+        return result
+      end
     end
     # No result, return nil
     nil

c-busqueda/shard.yml

@@ -4,3 +4,5 @@ version: 0.1.0
 dependencies:
     ishi:
       github: toddsundsted/ishi
+    pg:
+      github: will/crystal-pg