[Flask] Help with simple example using AngularJS

Clint Olsen clint.olsen at gmail.com
Mon Jan 29 19:52:08 EST 2018


I'm new to Flask and Angular and only done a little web-based programming,
so please forgive my lack of understanding. I've just cobbled together
examples from Flask as well as some examples online to come up with the

I am interested in the most basic functionality of modifying a web form and
capturing that in the back-end to prove I can get data at least in one


var app = angular.module('myApp', []);

app.controller('formCtrl', function($scope, $log, $http) {
    $scope.firstName = "John";

    $scope.SendData = function () {
        var data = { 'foo': $scope.firstName };

        var config = {
            headers : {

        $http.post('/', data, config)
            .success(function(results) {
        .error(function(error) {


<!doctype html>
        <script src="
                <script src="
                <script src="/static/app.js"></script>
                <link rel="stylesheet" href="/static/style.css" />
        <div ng-app="myApp" ng-controller="formCtrl">
            First Name: <input type="text" ng-model="firstName">

            <button data-ng-click="SendData()">

        <h1>You entered: {{firstName}}</h1>



from flask import Flask, request, send_file

app = Flask(__name__)

@app.route('/', methods=['GET', 'POST'])
def index():
    print('Request: %s' % request.method)
    if request.method == 'POST':
        data = request.form.to_dict()
        print('First name from form is %s' % data)
        return 'OK'
        return send_file("static/index.html")

if __name__ == "__main__":
    app.run(host='', debug=True)

This code (sort of) works, but the message I get from index() is kind of
weird, so maybe I'm not packaging the data payload correctly? In this
example I just populate the form with a "C":

Flask log:

Request: GET - - [29/Jan/2018 16:40:11] "GET /? HTTP/1.1" 200 - - - [29/Jan/2018 16:40:11] "GET /static/app.js HTTP/1.1" 200 - - - [29/Jan/2018 16:40:11] "GET /static/style.css HTTP/1.1" 200 -
Request: POST
First name from form is {'{"foo":"C"}': ''} - - [29/Jan/2018 16:40:16] "POST / HTTP/1.1" 200 -

I'm not not quite sure why the key/value pair is embedded in a dictionary
as the key with an empty value.

Any pointers would be much appreciated!


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