Return stream and template in Flask/Python

Question

After researching, I know there is no way to send_file and render_template in one return; however, all of the other solutions pointed to a document that is stored on a server. Is there a workaround for a stream to send_file and load a template either in the same page or another one?

app = Flask(__name__)

@app.route('/', methods=['GET','POST'])
def homes():
    if request.method == 'POST':
        document = request.files['test']
        stream = io.BytesIO(document.read())
        doc = aw.Document(stream)
        # random doc manipulation


    return send_file(doc, as_attachment=True, download_name='test.docx')
    return render_template("index.html")

Answer 1

You can seperate the two routes like:

app.py

app = Flask(__name__)

@app.route('/', methods=['GET','POST'])
def homes():
    return render_template("index.html") <- post a link to the `download_file` route in this template

@app.route('/download_file', methods=['GET'])
def download_file():
    if request.method == 'GET'
        document = request.files['test']
        stream = io.BytesIO(document.read())
        doc = aw.Document(stream)

    return send_file(doc, as_attachment=True, download_name='test.docx')

Then in your html file use this:

index.html (example)

<!DOCTYPE html>
<html lang="en">
<body>
    <ul>
        <li><a href="{{ url_for('download_file') }}">Download</a>
    </ul>
</body>
</html>

Return stream and template in Flask/Python

Question

1 answers

solution1
0 2022-08-04 19:55:29

Return stream and template in Flask/Python

Question

1 answers

solution1 0 2022-08-04 19:55:29

solution1
0 2022-08-04 19:55:29