Ask HN: System Design – Fastest webserver to serve data in memory

    from flask import Flask
    import random  

    app = Flask('primes')
    
    @app.route("/rand_prime")
    def rand_prime(n):
        return random.sample(primes, 1)
    
    if __name__ == "__main__":
        global primes
        # some function to load primes from a file into a set
        primes = load_primes()
        app.run()