text: from flask import Flask, jsonify
  import os
  
  app = Flask(__name__)
  
  
  @app.route("/")
  def home():
      return jsonify(greetings="helloworld")
  
  
  if __name__ == "__main__":
      port = int(os.environ.get("PORT", 5000))
      app.run(host="0.0.0.0", port=port)