Send data from a textbox into Flask

Question

I was wondering if there was a way to take something from a text box in the HTML  feed it into flask  then parse that data with Python  I was thinking this might involve some JS but I could be wrong  Any ideas

User · Answer

Declare a Flask endpoint to accept POST input type and then do necessary steps  Use jQuery to post the data   from flask import request   app route   parse data   methods   GET    POST    def parse data data       if request method     POST             perform action here   var value       textbox   val      ajax     type   POST     url      url for  parse data          data  JSON stringify value     contentType   application json     success  function data          do something with the received data

User · Answer

Unless you want to do something more complicated  feeding data from a HTML form into Flask is pretty easy    Create a view that accepts a POST request  my form post   Access the form elements in the dictionary request form    templates my-form html     lt form method  POST  gt       lt input name  text  gt       lt input type  submit  gt   lt  form gt      from flask import Flask  request  render template  app   Flask   name      app route      def my form        return render template  my-form html     app route      methods   POST    def my form post        text   request form  text       processed text   text upper       return processed text   This is the Flask documentation about accessing request data   If you need more complicated forms that need validation then you can take a look at WTForms and how to integrate them with Flask   Note  unless you have any other restrictions  you don t really need JavaScript at all to send your data  although you can use it

User · Answer

All interaction between server your flask app  and client browser  going by request and response  When user hit button submit in your form his browser send request with this form to your server  flask app   and you can get content of the form like   request args get  form name

User · Answer

This worked for me    def parse data        if request method     POST           data   request get json           print data  answers            return render template  output html   data data      ajax         type   POST         url    parse data         data  JSON stringify  values          contentType   application json charset utf-8         dataType   json         success  function data              do something with the received data

User · Answer

Assuming you already know how to write a view in Flask that responds to a url  create one that reads the request post data  To add the input box to this post data create a form on your page with the text box  You can then use jquery to do   var data        lt form-id gt    serialize     and then post to your view asynchronously using something like the below     post   lt your view url gt    function data          result   html data

[python] Send data from a textbox into Flask?

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