[Flask] Help with simple example using AngularJS
Adil Hasan
paradox2005 at gmail.com
Wed Jan 31 18:11:37 EST 2018
Hello Clint,
I wasn't using Flask one one of my backends (just plain cgi python), but I
had to pass the JSON object as a string. Could you try out
$http.post('/', JSON.stringify(data), config)
and see if that gives you what you want?
hth
adil
On Mon, Jan 29, 2018 at 04:52:08PM -0800, Clint Olsen wrote:
> Hi:
>
> I'm new to Flask and Angular and only done a little web-based programming,
> so please forgive my lack of understanding. I've just cobbled together
> examples from Flask as well as some examples online to come up with the
> following.
>
> I am interested in the most basic functionality of modifying a web form and
> capturing that in the back-end to prove I can get data at least in one
> direction:
>
> *static/app.js*:
>
> var app = angular.module('myApp', []);
>
> app.controller('formCtrl', function($scope, $log, $http) {
> $scope.firstName = "John";
>
> $scope.SendData = function () {
> var data = { 'foo': $scope.firstName };
>
> var config = {
> headers : {
> 'Content-Type':
> 'application/x-www-form-urlencoded;charset=utf-8;'
> }
> }
>
> $http.post('/', data, config)
> .success(function(results) {
> $log.log(results);
> })
> .error(function(error) {
> $log.log(error);
> });
> };
> });
>
> *static/index.html*:
>
> <!doctype html>
> <html>
> <head>
> <script src="
> https://ajax.googleapis.com/ajax/libs/angularjs/1.5.3/angular.min.js
> "></script>
> <script src="
> http://code.angularjs.org/1.5.3/angular-route.min.js"></script>
> <script src="/static/app.js"></script>
> <link rel="stylesheet" href="/static/style.css" />
> </head>
> <body>
> <div ng-app="myApp" ng-controller="formCtrl">
> <form>
> First Name: <input type="text" ng-model="firstName">
>
> <button data-ng-click="SendData()">
> Send
> </button>
> </form>
>
> <h1>You entered: {{firstName}}</h1>
>
> <div>
> </body>
> </html>
>
> *app.py*:
>
> 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'
> else:
> return send_file("static/index.html")
>
> if __name__ == "__main__":
> app.run(host='0.0.0.0', 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
> 127.0.0.1 - - [29/Jan/2018 16:40:11] "GET /? HTTP/1.1" 200 -
> 127.0.0.1 - - [29/Jan/2018 16:40:11] "GET /static/app.js HTTP/1.1" 200 -
> 127.0.0.1 - - [29/Jan/2018 16:40:11] "GET /static/style.css HTTP/1.1" 200 -
> Request: POST
> First name from form is {'{"foo":"C"}': ''}
> 127.0.0.1 - - [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!
>
> Thanks,
>
> -Clint
> _______________________________________________
> Flask mailing list
> Flask at python.org
> https://mail.python.org/mailman/listinfo/flask
More information about the Flask
mailing list