Implementar API híbrida

app/controllers/api_controller.rb

@@ -1,10 +1,59 @@
 # frozen_string_literal: true
 
 class ApiController < ActionController::API
-  # Por ahora hacer un echo de cada transacción
-  #
+  # TODO: Habilitar esto de alguna forma.
+  skip_forgery_protection
+
+  rescue_from ActiveRecord::RecordNotFound, with: :bad_request_error
+  rescue_from ActionController::ParameterMissing, with: :bad_request_error
+
   # @see {https://docutopia.tupale.co/sutty:nodemecu:api}
   def transactions
-    render plain: params[:transaction_uuid], status: :ok
+    Transaction.transaction do
+      transaction = raspberry.transactions.build transaction_params
+      transaction.id = params[:transaction_uuid]
+      # TODO: Verificar firma
+      transaction.signature = headers[:'X-Signature']
+
+      params[:arduinos]&.each do |a|
+        arduino = transaction.arduinos.build local_id: a[:id]
+
+        a[:sensores]&.each do |s|
+          arduino.sensors.build(sensor_params s)
+        end
+      end
+
+      if transaction.save
+        render plain: transaction.uuid, status: :ok
+      else
+        head :bad_request
+      end
+    end
+  end
+
+  private
+
+  def bad_request_error
+    head :bad_request
+  end
+
+  def raspberry
+    @raspberry ||= Raspberry.find params[:controller_id]
+  end
+
+  # Procesa la transacción
+  def transaction_params
+    @transaction_params ||= params.permit(:controller_id,
+                                          :timestamp,
+                                          :error_code,
+                                          :battery_status,
+                                          :sample,
+                                          :signature,
+                                          coordinates: %i[lat lng])
+  end
+
+  # Procesa los parámetros de un sensor
+  def sensor_params(sensor)
+    sensor.permit(:timestamp, :type, :value, :unit, :error)
   end
 end

app/controllers/measurements_controller.rb

@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-class MeasurementsController < ApplicationController
-  protect_from_forgery with: :null_session
-
-  def create
-    sensor = Sensor.find_or_create_by id: params[:sensor_id]
-    sensor.measurements.create params.permit(:temperature, :level, :flow, :turbidity, :conductivity, :ph)
-  end
-end

app/models/arduino.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class Transaction < ApplicationRecord
+  belongs_to :raspberry
+  belongs_to :transaction
+  has_many :sensores
+end

app/models/raspberry.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class Raspberry < ApplicationRecord
+  has_many :transactions
+  has_many :arduinos
+end

app/models/sensor.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 class Sensor < ApplicationRecord
-  has_many :measurements
+  belongs_to :arduino
 end

app/models/transaction.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class Transaction < ApplicationRecord
+  belongs_to :raspberry
+  has_many :arduinos
+end

config/initializers/inflections.rb

@@ -1,16 +1,5 @@
-# Be sure to restart your server when you modify this file.
+# frozen_string_literal: true
 
-# Add new inflection rules using the following format. Inflections
-# are locale specific, and you may define rules for as many different
-# locales as you wish. All of these examples are active by default:
-# ActiveSupport::Inflector.inflections(:en) do |inflect|
-#   inflect.plural /^(ox)$/i, '\1en'
-#   inflect.singular /^(ox)en/i, '\1'
-#   inflect.irregular 'person', 'people'
-#   inflect.uncountable %w( fish sheep )
-# end
-
-# These inflection rules are supported but not enabled by default:
-# ActiveSupport::Inflector.inflections(:en) do |inflect|
-#   inflect.acronym 'RESTful'
-# end
+ActiveSupport::Inflector.inflections(:en) do |inflect|
+  inflect.irregular 'raspberry', 'raspberries'
+end

db/migrate/20210719142217_create_sensor.rb

@@ -1,7 +1,7 @@
+# frozen_string_literal: true
 class CreateSensor < ActiveRecord::Migration[6.1]
   def change
     create_table :sensors do |t|
-
       t.string :nombre, unique: true, index: true
       t.timestamps
     end

db/migrate/20211206221756_create_transactions.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# Crea las transacciones
+class CreateTransactions < ActiveRecord::Migration[6.1]
+  def change
+    enable_extension :pgcrypto
+
+    create_table :transactions, id: :uuid do |t|
+      t.timestamps
+      t.uuid :raspberry_id, index: true
+      t.datetime :timestamp
+      t.string :error_code
+      t.jsonb :coordinates
+      t.string :battery_status
+      t.string :sample
+      t.string :storage
+      t.string :signature
+    end
+  end
+end

db/migrate/20211206221912_create_raspberries.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class CreateRaspberries < ActiveRecord::Migration[6.1]
+  def change
+    enable_extension :pgcrypto
+
+    create_table :raspberries, id: :uuid do |t|
+      t.timestamps
+      t.string :name
+      t.string :public_key
+    end
+  end
+end

db/migrate/20211206221925_create_arduinos.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class CreateArduinos < ActiveRecord::Migration[6.1]
+  def change
+    create_table :arduinos, id: :uuid do |t|
+      t.timestamps
+      t.uuid :raspberry_id, index: true
+      t.uuid :transaction_id, index: true
+      t.integer :local_id
+    end
+  end
+end

db/migrate/20211206224007_drop_measurements.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class DropMeasurements < ActiveRecord::Migration[6.1]
+  def change
+    drop_table :measurements
+  end
+end

db/migrate/20211206224353_change_sensors.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+class ChangeSensors < ActiveRecord::Migration[6.1]
+  def up
+    drop_table :sensors
+
+    create_table :sensors, id: :uuid do |t|
+      t.timestamps
+      t.uuid :arduino_id, index: true
+      t.datetime :timestamp
+      t.string :type, index: true
+      t.integer :value
+      t.string :unit
+    end
+  end
+
+  def down
+    drop_table :sensors
+
+    create_table :sensors do |t|
+      t.string :nombre, unique: true, index: true
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,11 +10,22 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_07_26_182544) do
+ActiveRecord::Schema.define(version: 2021_12_06_224353) do
 
   # These are extensions that must be enabled in order to support this database
+  enable_extension "pgcrypto"
   enable_extension "plpgsql"
 
+  create_table "arduinos", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.uuid "raspberry_id"
+    t.uuid "transaction_id"
+    t.integer "local_id"
+    t.index ["raspberry_id"], name: "index_arduinos_on_raspberry_id"
+    t.index ["transaction_id"], name: "index_arduinos_on_transaction_id"
+  end
+
   create_table "blazer_audits", force: :cascade do |t|
     t.bigint "user_id"
     t.bigint "query_id"
@@ -71,24 +82,37 @@ ActiveRecord::Schema.define(version: 2021_07_26_182544) do
     t.index ["creator_id"], name: "index_blazer_queries_on_creator_id"
   end
 
-  create_table "measurements", force: :cascade do |t|
-    t.decimal "temperature"
-    t.decimal "level"
-    t.decimal "ph"
-    t.decimal "turbidity"
-    t.decimal "conductivity"
-    t.decimal "flow"
-    t.bigint "sensor_id"
+  create_table "raspberries", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.index ["sensor_id"], name: "index_measurements_on_sensor_id"
+    t.string "name"
+    t.string "public_key"
   end
 
-  create_table "sensors", force: :cascade do |t|
-    t.string "nombre"
+  create_table "sensors", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.index ["nombre"], name: "index_sensors_on_nombre"
+    t.uuid "arduino_id"
+    t.datetime "timestamp"
+    t.string "type"
+    t.integer "value"
+    t.string "unit"
+    t.index ["arduino_id"], name: "index_sensors_on_arduino_id"
+    t.index ["type"], name: "index_sensors_on_type"
+  end
+
+  create_table "transactions", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.uuid "raspberry_id"
+    t.datetime "timestamp"
+    t.string "error_code"
+    t.jsonb "coordinates"
+    t.string "battery_status"
+    t.string "sample"
+    t.string "storage"
+    t.string "signature"
+    t.index ["raspberry_id"], name: "index_transactions_on_raspberry_id"
   end
 
   create_table "users", force: :cascade do |t|