controller.py

from flask import Flask, render_template
from flask import send_file

app = Flask(__name__)


@app.route("/")
def index():
    return render_template("index.html")


@app.route("/taxonomy.json")
def loadFile():
    path = "taxonomy.json"
    return send_file(path, as_attachment=True)


if __name__ == "__main__":
    app.run()