CODEWITHSUNDEEP
flask
Rocket Pingu
Rocket Pingu

Reputation: 621

How can I render the Page First before Executing a Background Task using Flask?

I would like to train my deep learning models with flask. I can already train them through the commandline but I figured it would be nice to train them with a good UI.

I managed to create such a trainer however, I do have a bit of a problem with it.

@app.route('/train', methods=['POST'])
def train():
    architecture = get('architecture', str)
    network = get_architecture(architecture)
    network.train(...) # slow down happens here
    return render_template("begin_training.html")

I would like to render the page first to display the parameters given by the user before beginning the training but I don't know how to do it. If I keep it this way, I would have to wait for the training to finish first before the page is rendered. Is it possible to render the page first before executing the training? Or how do I execute training as a background task?

Upvotes: 0

Views: 401

Answers (1)

dvnguyen
dvnguyen

Reputation: 3022

Slow tasks should be executed in background. There are several ways to do that. One of them is using celery, which is also documented in Flask document: http://flask.pocoo.org/docs/0.12/patterns/celery/

Upvotes: 1

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