I'm trying to create a web app with Flask that lets a user upload a file and serve them to another user. Right now, I can upload the file to the upload_folder correctly. But I can't seem to find a way to let the user download it back.
I'm storing the name of the filename into a database.
I have a view serving the database objects. I can delete them too.
@app.route('/dashboard', methods=['GET', 'POST'])
def dashboard():
problemes = Probleme.query.all()
if 'user' not in session:
return redirect(url_for('login'))
if request.method == 'POST':
delete = Probleme.query.filter_by(id=request.form['del_button']).first()
db.session.delete(delete)
db.session.commit()
return redirect(url_for('dashboard'))
return render_template('dashboard.html', problemes=problemes)
In my HTML I have:
<td><a href="{{ url_for('download', filename=probleme.facture) }}">Facture</a></td>
and a download view :
@app.route('/uploads/<path:filename>', methods=['GET', 'POST'])
def download(filename):
return send_from_directory(directory=app.config['UPLOAD_FOLDER'], filename=filename)
But it's returning :
Not Found
The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.
I just want to link the filename to the object and let the user download it (For every object in the same view)
This question is related to
python
flask
download
flask-sqlalchemy
I was also developing a similar application. I was also getting not found error even though the file was there. This solve my problem. I mention my download folder in 'static_folder':
app = Flask(__name__,static_folder='pdf')
My code for the download is as follows:
@app.route('/pdf/<path:filename>', methods=['GET', 'POST'])
def download(filename):
return send_from_directory(directory='pdf', filename=filename)
This is how I am calling my file from html.
<a class="label label-primary" href=/pdf/{{ post.hashVal }}.pdf target="_blank" style="margin-right: 5px;">Download pdf </a>
<a class="label label-primary" href=/pdf/{{ post.hashVal }}.png target="_blank" style="margin-right: 5px;">Download png </a>
To download file on flask call. File name is Examples.pdf When I am hitting 127.0.0.1:5000/download it should get download.
Example:
from flask import Flask
from flask import send_file
app = Flask(__name__)
@app.route('/download')
def downloadFile ():
#For windows you need to use drive name [ex: F:/Example.pdf]
path = "/Examples.pdf"
return send_file(path, as_attachment=True)
if __name__ == '__main__':
app.run(port=5000,debug=True)
Source: Stackoverflow.com