Transfer image links from flask to android app

Question

I am developing an android app with Python Flask.I am need to transfer image links from server to android.How is that possible?I read about static folder but i think this is not the best solution. On apache you can simply write: /images/image.jpg and the server will give you the image.Is it possible in flask too?

Answer 1

Using a static folder is the correct way of doing it.

First, you need to provide a route:

app = Flask(__name__, static_url_path='')
app.config['HOME_FOLDER'] = os.path.dirname(os.path.abspath(__file__))

@app.route('/public/<path>')
def downloadFile(path):
    resp = send_from_directory(app.config['HOME_FOLDER'], path, as_attachment=True)
    return resp

And then the folder structure would be as follows:

/static
    |-file1
    |-file2

Finally, to create the link to those files, in javascript you would have:

var file_path = 'file1';
var a = document.createElement('A');
a.href = file_path;
a.download = file_path.substr(file_path.lastIndexOf('/') + 1);
document.body.appendChild(a);