How to route Flask url based on user form input in HTML?

Question

I have an html form where a user can enter a stock ticker. After submitting the ticker I'd like the app to redirect to a url that has the entered ticker in the url path and returns the ticker name.

Code:

@app.route('/', methods=['GET', 'POST'])
def stockInfo():
    if request.method == "POST":
        ticker = request.form['ticker'].upper()
        return redirect('/<ticker>')
    return render_template('home.html')

@app.route('/<ticker>', methods=['GET', 'POST'])
def success(ticker):
    return '<h1>The ticker' + ticker + 'was entered </h1>'

What I would like to happen is when the user submits the ticker "NFLX" it routes to /NFLX and returns "The ticker NFLX was entered"

Robin Zigmond · Accepted Answer · 2020-07-24 22:47:45Z

2

You can do this by using Flask's url_for function:

@app.route('/', methods=['GET', 'POST'])
def stockInfo():
    if request.method == "POST":
        ticker = request.form['ticker'].upper()
        return redirect(url_for('success', ticker=ticker))
    return render_template('home.html')

@app.route('/<ticker>', methods=['GET', 'POST'])
def success(ticker):
    return '<h1>The ticker' + ticker + 'was entered </h1>'

answered Jul 24, 2020 at 22:47

Robin Zigmond

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1 Comment

prime90 Over a year ago

added url_for to imports and worked perfectly thanks

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