How can I get a message from views.py ?

I don't get how to do it. I need to display a message "Hello world"  using  framawork messages with Jquery/Ajax

I can do it without Jquery/Ajax but it's not good.

The user clicks the link and depending on a condition or to send him according to the reference or to display the message without rebooting the page.

Here is my code:

views.py

from django.shortcuts import render, HttpResponseRedirect
from django.contrib import messages

def foo(request):

    print('I am foo')

    spam = 0

    if spam != 10:

        messages.info(request, 'Hellow world')

        return HttpResponseRedirect('/')

    return render(request, 'app/foo.html')

def index(request):

    return render(request, 'app/index.html')

index.html

<script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<p>I'm index.html</p>

    <a href="{% url 'foo' %}" id="mylink">link</a>

    <!-- <a href="" id="mylink" class="alert">link</a> -->

    {% for message in messages %}

        {{ message }}

    {% endfor %}

foo.html

 <p>I am link.html</p>

How can I do it with Jquery/Ajax? Help me, please!

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