Initial commit

lib/peatio/opendax_cloud/client.rb

@@ -0,0 +1,55 @@
+module OpendaxCloud
+  class Client
+    Error = Class.new(StandardError)
+
+    class ConnectionError < Error; end
+    class MissingEnvError < Error; end
+
+    def initialize(endpoint, idle_timeout: 5)
+      @platform_id = ENV.fetch('PLATFORM_ID') do
+        raise MissingEnvError, :platform_id
+      end
+
+      @endpoint = URI.parse(endpoint)
+      @private_key = OpenSSL::PKey.read(Base64.urlsafe_decode64(ENV.fetch('PEATIO_JWT_PRIVATE_KEY')))
+      @path = @endpoint.path.empty? ? "/" : @endpoint.path
+      @idle_timeout = idle_timeout
+    end
+
+    def rest_api(verb, path, data = nil)
+      args = [@endpoint.to_s + path]
+      jwt = JWT.encode(data, @private_key, 'RS256')
+
+      headers = { 'Content-Type' => 'application/json',
+                  'Authorization' => 'Bearer ' + jwt,
+                  'Accept' => 'application/json',
+                  'PlatformID' => @platform_id }
+
+      if data.present?
+        if %i[post put patch].include?(verb)
+          args << data.compact.to_json << headers
+        else
+          args << data.compact << headers
+        end
+      else
+        args << data << headers
+      end
+
+      response = connection.send(verb, *args)
+      response.assert_success!
+      JSON.parse(response.body)
+    rescue Faraday::Error => e
+      raise ConnectionError, e
+    rescue StandardError => e
+      raise Error, e
+    end
+
+    private
+
+    def connection
+      @connection ||= Faraday.new(@endpoint) do |f|
+        f.adapter :net_http_persistent, pool_size: 5, idle_timeout: @idle_timeout
+      end
+    end
+  end
+end