flask_snippets.py

# Snippet 1
###########

# Copy the build folder(containing the html files) to a folder in flask's static
# directory and serve this way:
@app.route('/<dir>/<filename>', defaults={'static': True})
def build_dir(dir='',filename='index.html'):
    path = join(dir,filename)
    return app.send_static_file(path)

# Alternative
@app.route('/<path:path>')
def static_html(path):
    return app.send_static_file(path) # send_static handles mime type

# Send from directory might actually be best for this use case for user supplied
# path and not send_file or send_static_file
app = Flask(__name__, static_url_path='')

@app.route('/build/<path:path')
def send_build(path):
    return send_from_directory('build', path)

# Another approach
@app.route('/<string:page_name>/')
def render_static(page_name):
    return render_template('%s.html' % page_name)