How to use query parameters in Django URLs



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In Django, you can use query parameters in URLs to pass additional information to your views. Query parameters are key-value pairs added to the end of a URL after a question mark (?). Here's a step-by-step guide on how to use query parameters in Django URLs:

  1. Define the URL pattern in urls.py:

    Open your urls.py file and define the URL pattern. You can include the parameter names in angle brackets (< >). These parameter names will be captured from the URL and passed to your view.

    python
    # urls.py

from django.urls import path
from . import views

urlpatterns = [
    path('example/', views.example_view, name='example'),
]

  2. Update your view to handle query parameters:

    In your views.py file, update the view function to handle the query parameters. You can use the request.GET dictionary to access the parameters.

    python
    # views.py

from django.shortcuts import render

def example_view(request):
    # Access query parameters using request.GET.get('parameter_name', default_value)
    parameter_value = request.GET.get('parameter_name', 'default_value')

    # Your view logic here

    return render(request, 'example_template.html', {'parameter_value': parameter_value})

  3. Update the template to display the parameter value:

    In your template file (example_template.html), you can display the value of the query parameter.

    html
    <!-- example_template.html -->

<h1>Example View</h1>
<p>Parameter Value: {{ parameter_value }}</p>

  4. Include the query parameters in the URL:

    When navigating to the URL, you can include query parameters by appending them to the URL after a question mark (?). For example:

    bash
    http://localhost:8000/example/?parameter_name=value

    Replace http://localhost:8000 with your domain and port.

Now, when you access the /example/ URL with the specified query parameter, the value will be passed to the example_view function, and you can use it in your view logic.

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