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Render plot on page, interactivity not working yet.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,28 +1,59 @@ | ||
| """Display a stock ticker visualization based on user input.""" | ||
| import json | ||
| from flask import Flask, render_template, request, redirect | ||
| from bokeh.embed import json_item | ||
| from bokeh.resources import CDN | ||
| from ticker import ticker | ||
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| app = Flask(__name__) | ||
| app.vars = {} | ||
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| def create_ticker(symbol): | ||
| """Render ticker json object from stock symbol.""" | ||
| p = ticker(symbol) | ||
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| return p | ||
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| @app.route('/', methods=('GET', 'POST')) | ||
| def index(): | ||
| """Render the app's main page.""" | ||
| if request.method == 'GET': | ||
| # Default gives IBM's ticker when first loaded. | ||
| symbol = 'IBM' | ||
| return render_template('index.html', symbol=symbol) | ||
| app.vars['symbol'] = 'IBM' | ||
| p = create_ticker(app.vars['symbol']) | ||
| p_json = json.dumps(json_item(p, 'myplot')) | ||
| return render_template('index.html', | ||
| symbol=app.vars['symbol'], | ||
| p=p, | ||
| p_json=p_json, | ||
| ) | ||
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| else: | ||
| # User submitted a ticker symbol aka method = 'POST' | ||
| symbol = request.form['symbol'] | ||
| return render_template('index.html', symbol=symbol) | ||
| app.vars['symbol'] = request.form['symbol'] | ||
| p = create_ticker(app.vars['symbol']) | ||
| json.dumps(json_item(p, 'myplot')) | ||
| return render_template('index.html', | ||
| symbol=app.vars['symbol'], | ||
| p=p, | ||
| p_json=p_json, | ||
| ) | ||
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| @app.route('/about') | ||
| def about(): | ||
| return render_template('about.html') | ||
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| @app.route('/plot') | ||
| def plot(): | ||
| """Render json item from bokeh plot.""" | ||
| p = create_ticker(app.vars['symbol']) | ||
| return json.dumps(json_item(p, 'myplot')) | ||
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| if __name__ == '__main__': | ||
| app.run(port=33507) |
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