Python Flask: Return HTML Content
Question
i am trying to put together a makeshift tool for my own personal use, im not experienced with backend development at all. so my methods may be unconventional. although there may be a much better method to go about this
consider the following snippet from my html file:
<tr><td>
<button id="socks.shirt.pants"> dummy text here </button>
</td></tr>
my goal, as simply as i can put it, is to click BUTTON and return the string text within the ID attribute in python using Flask. Below is the code i am working with.
app = Flask(__name__)
@app.route('/', methods=['GET', 'POST'])
def index():
#display html file
return send_from_directory('','myfile.html')
#this is the part that needs help
textdata = request.htmlcontent.td.id
i have tried several different ways to extract the html content. including but not limited to:
request.html.tr.id,
request.get_data(),
request.data(),
request.form,
i understand now that request.form returns user-supplied information submitted in a form, which wont work for me because the information that i want to retrieve will be hardcoded into the html file under whichever tag that would allow this process to work. (currently tr -> td -> button). the other methods either returned None or an some empty string, i believe.
also, i am wondering if maybe there is some piece of javascript code that ill need to use in addition to Flask as well? i hope that this is not an unrealistic expectation to ask this question! any suggestions would help greatly!
1 answers
solution1
5 2018-05-18 18:49:26
You can use ajax with jquery :
In the main filename.py , include a route like this, that access the parameters from the json response from the frontend. Also, provide a route that will render the HTML template:
@app.route('/recieve_data')
def get_id():
the_id = flask.request.args.get('button_id')
return "<p>Got it!</p>"
@app.route('/', methods=['GET', 'POST'])
def home():
return flask.render_template('filename.html')
In your HTML (stored in filename.html ), utilize the code below:
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
</head>
<body>
<tr><td>
<button id="socks.shirt.pants" type='button'> dummy text here</button>
<div id='response'></div>
</td></tr>
</body>
<script>
$(document).ready(function() {
$("button").click(function(event){
var the_id = event.target.id;
$.ajax({
url: "/recieve_data",
type: "get",
data: {button_id: the_id},
success: function(response) {
$("#response").html(response);
},
error: function(xhr) {
//Do Something to handle error
}
});
});
});
</script>
</html>
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