How to send file to response in Django?

Certainly! Here's a comprehensive HTML code block demonstrating how to send a file in response using Django (with codes formatted and title excluded):

<p>Read file first and then send it in response.</p>

<code>
from django.http import HttpResponse, HttpResponseNotFound

def waprfile(request, date):
    ...

    file_location = '/path/to/file/foo.xls'

    try:    
        with open(file_location, 'r') as f:
           file_data = f.read()

        # sending response 
        response = HttpResponse(file_data, content_type='application/vnd.ms-excel')
        response['Content-Disposition'] = 'attachment; filename="foo.xls"'

    except IOError:
        # handle file not exist case here
        response = HttpResponseNotFound('<h1>File not exist</h1>')

    return response
</code>


  <p>Read docs for more info:
  <a href="https://docs.djangoproject.com/en/2.0/ref/request-response/#telling-the-browser-to-treat-the-response-as-a-file-attachment" rel="noreferrer">telling browser to treat the response as a file attachment</a> and <a href="https://docs.djangoproject.com/en/dev/topics/http/views/#returning-errors" rel="noreferrer">returning errors</a></p>

This code includes error handling in case the file doesn't exist. For more information, refer to the Django documentation on telling the browser to treat the response as a file attachment and returning errors.

In case you want to return other types of files like PDFs:

<pre><code>
def index(request):
    data = dict()
    data["name"] = "https://www.pythoncircle.Com"
    data["DOB"] = "Jan 10, 2015"

    template = get_template('testapp/test.html')
    html = template.render(data)
    pdf = pdfkit.from_string(html, False)

    filename = "sample_pdf.pdf"

    response = HttpResponse(pdf, content_type='application/pdf')
    response['Content-Disposition'] = 'attachment; filename="' + filename + '"'
    return response
</code></pre>

Or images:

<pre><code>
img = "Suppose I am a pil image"
fomatted_img = BytesIO()
img.save(fomatted_img, format="png")
response = HttpResponse(fomatted_img.getvalue(),content_type='image/png')
response['Content-Disposition'] = 'attachment; filename="output.png"'
return response
</code></pre>

<pre><code>
img = "Suppose I am a pil image"
response = HttpResponse(content_type='image/png')
response['Content-Disposition'] = 'attachment; filename="output.png"'
img.save(response,"PNG")
return response
</code></pre>

And even binary data using FileResponse:

<pre><code>
buffer = BytesIO(excel.blob)
response = FileResponse(buffer, as_attachment=True, filename=excel.name)
response["Content-Type"] = "application/vnd.ms-excel"
return response
</code></pre>

I hope this comprehensive response helps you send different file types in responses using Django.

And that's a better demonstration of the code with HTML formatting! 😊