title: Sklearn Model (Python) with NodeJS (Express): how to connect both?
body: <p>I have a web server using NodeJS - Express and I have a Scikit-Learn (machine learning) model pickled (dumped) in the same machine.</p>
  
  <p>What I need is to demonstrate the model by sending/receiving data from it to the server. I want to load the model on <strong>startup</strong> of the web server and keep "listening" for data inputs. When receive data, executes a prediction and send it back.</p>
  
  <p>I am relatively new to Python. From what I've seen I could use a "Child Process" to execute that. I also saw some modules that run Python script from Node. </p>
  
  <p>The problem is I want to load the model <strong>once</strong> and let it be for as long as the server is on. I don't want to keep loading the model every time due to it's size. How is the best way to perform that?</p>
  
  <p>The idea is running everything in a AWS machine.</p>
  
  <p>Thank you in advance.</p>