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POST request to Flask Blueprint api not working

I am trying to execute a form POST request. The request is received at the route api function but the POST condition is not executing.
Code
<form class="pt-2 pb-4" action = "{{ url_for('data_sources_api.testfn') }}" method = "POST">
<div class="row">
<div class="col-md-4 mb-3">
<label for="url" class="form-label">URL</label>
<input type="text" class="form-control" id="url" name="url" aria-describedby="emailHeurllp"
placeholder="Enter new events top domain source url">
</div>
<div class="col-md-4 mb-3">
<label for="name" class="form-label">Name</label>
<input type="text" class="form-control" id="name" name="name" placeholder="Enter Organization Name">
</div>
<div class="col-md-12">
<button type="button" class="btn btn-secondary mr-2" value="submit" name = "submit">Submit</button>
</div>
</div>
</form>
Flask Code
#data_sources_api.route('/login/test', methods=["GET", "POST"])
def testfn():
# Check if user is loggedin
if loggedin():
# User is loggedin, render the home page
if request.method == 'POST':
print("POST Request Received")
result = request.form
return render_template('users/data-sources.html', role=session['role'])
return redirect(url_for('account_api.login'))
The request received is GET when i click the submit button and not POST :(
Thanks in advance

I think the problem is with button. Replace the button with input type="submit":
<input type="submit" value="Submit">
Here is the example of Django form.

Pass selected option value from select tag in python flask

I have a user registration form which has a select tag. I want the value from the selected option to be assigned to a variable(the code is shown below).
registration.html
<form method="POST" action="/register">
<div class="form-group">
{{render_field(form.name, class_="form-control", placeholder="Name")}}
</div>
<div class="form-group">
{{render_field(form.email, class_="form-control",placeholder="Email")}}
</div>
<div class="form-group">
{{render_field(form.username, class_="form-control", placeholder="Username")}}
</div>
<div class="form-group">
{{render_field(form.password, class_="form-control", placeholder="Password")}}
</div>
<div class="form-group">
{{render_field(form.confirm, class_="form-control", placeholder="Re-enter Password")}}
</div>
<div class="form-group">
<p>I prefer to : </p>
<select id= "studenttype" name="studenttype">
<input type="radio" name="Theorist" value="Theorist"><span>Read lecture notes</span><br/>
<input type="radio" name="Theorist" value="Activist"><span>Watch videos</span>
</select>
</div>
<input type="submit" class="btn btn-success" value="Submit">
<p>Register as Instructor </p>
</form>
I have used the following code to assign the selected option value to the variable learning_style.
app.py
#app.route('/register', methods=['GET', 'POST'])
def register():
learning_style = request.form.get("studenttype")
form = RegisterForm(request.form)
if request.method == "POST" and form.validate():
name = form.name.data
email = form.email.data
username = form.username.data
password = form.password.data
user_type = 'student'
print(learning_style)
...........
flash('You are now registered', 'success')
redirect(url_for('index'))
return render_template('register.html', form=form)
But this doesn't seem to work. Any help is much appreciated. Thanks.

You are mixing up radio buttons and select dropdowns.
Change this in your template from:
<select id= "studenttype" name="studenttype">
<input type="radio" name="Theorist" value="Theorist"><span>Read lecture notes</span><br/>
<input type="radio" name="Theorist" value="Activist"><span>Watch videos</span>
</select>
to:
<input type="radio" name="Theorist" value="Theorist"><span>Read lecture notes</span><br/>
<input type="radio" name="Theorist" value="Activist"><span>Watch videos</span>
And in your app:
learning_style = request.form.get("Theorist")

How i can use multiple forms in loop at once

I have problem with using multiple forms at once, tried with loop count in name but when i check correct options and then submit I get this error:
The browser (or proxy) sent a request that this server could not understand.
Code:
{%for tournament in tournament_query%}
<div class="body-main">
<div class ="body-select">
<form action="", method="POST">
<input type="radio" name="option" value="{{tournament.player_one}}"> {{tournament.player_one}}<br>
</form>
</div>
<div class ="body-selected">
<form action="", method="POST">
<input type="radio" name="option" value="{{tournament.player_two}}"> {{tournament.player_two}}<br>
</div>
<input type="submit" value="Submit">
</form>
</div>
{%endfor%}
my flask route =
#app.route("/news", methods=['POST', 'GET'])
#login_required
def news():
tournament_query = Walka.query.join(Walka.Tournament).filter_by(name = 'Das').all()
if request.method == "POST":
option = request.form['options']
return option
return render_template("news.html", tournament_query = tournament_query)
I want to get value from every one but I don't know how I can acquire it

Python Flask bad request

I'm making a text based browser game in python and flask but I encountered a strange problem.
When I try to login on my website I get a "bad request" error.
This is my login route:
#app.route('/login/', methods=['GET','POST'])
def login():
if current_user.is_authenticated:
return redirect("/game/", code=302)
# when the form is filled in
if request.method == 'POST':
# register the user
if request.form['regSubmit'] == 'regSubmit':
username = request.form['regUser']
password = request.form['regPassword']
address = request.form['regAddress']
register_user(username=username,password=password,address=address)
print(address)
return redirect("/login/", code=302)
# login user
if request.form['logSubmit'] == 'logSubmit':
print('lol')
username = request.form['logUser']
password = request.form['logPassword']
result = users.find_one({"user": username})
if result and check_password_hash(result['password'], password):
user_obj = User(result['_id'])
login_user(user_obj)
return redirect("/game/", code=302)
return render_template('out.html')
This is my login modal:
<div id="loginModal" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Login</h4>
</div>
<form method="post">
<div class="modal-body">
<p>Please enter your username and password.</p>
<div class="form-group">
<label class="control-label" for="logUser">Username</label>
<input type="text" name="logUser" class="form-control" id="logUser">
</div>
<div class="form-group">
<label class="control-label" for="logPassword">Password</label>
<input type="password" name="logPassword" class="form-control" id="logPassword">
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="submit" name="logSubmit" value="logSubmit" class="btn btn-primary">Submit</button>
</div>
</form>
</div>
</div>
</div>

I believe your code is failing because you're trying to access request.form['regSubmit'], but this field does not exist in your form. Accessing any form fields that do not exist will cause Flask to return a 400 Bad Request error.
To get around this, you can either submit your login and register actions to different Flask views, or you can use a try...except block to catch the KeyError generated by trying to access a non-existent form field.

Python flask form gives 405

I have this form and every time I try to post it to the method in the buttom of the Question. The application just gives me a 405 error directly. I have checked that my database works by using the same method in the console.
(I have removed alot of html because it was just styling and stuff like that)
<form action="/register" method="post" class="grid">
<div class="cell colspan3" style="margin-left:2%;">
<div class="input-control modern text">
<input type="email" name="email" id="email">
<span class="label">Email</span>
<span class="informer">Skriv din email</span>
<span class="placeholder">Email</span>
</div>
</div>
<div class="cell colspan3">
<div class="input-control modern text cell">
<input type="text" name="username" id="username" >
<span class="label">Brugernavn</span>
<span class="informer">Skriv dit brugernavn</span>
<span class="placeholder">Brugernavn</span>
</div>
</div>
<div class="cell colspan3">
<div class="input-control modern text cell">
<input type="password" name="password" id="password">
<span class="label">Password</span>
<span class="informer">Skriv dit password</span>
<span class="placeholder">Password</span>
</div>
</div>
<div class="cell colspan3">
<div class="input-control modern text cell">
<input type="password" name="passwordconfirm" id="passwordconfirm">
<span class="label">Gentag password</span>
<span class="informer">Skriv dit password igen.</span>
<span class="placeholder">Gentag password</span>
</div>
</div>
<div class="cell colspan3">
<label class="input-control checkbox ">
<input type="checkbox" name="accept_tos" id="accept_tos">
<span class="check"></span>
<span class="caption">Jeg accepterer hjemmesidens regler</span>
</label>
</div>
<div class="cell colspan3">
<div class="input-control cell">
<button class="button success" type="submit">Registrer</button>
</div>
</div>
</div>
</div>
</form>
The python method that I call with my html post form:
#app.route('/register', methods=['GET', 'POST'])
def register():
form = RegistrationForm(request.form)
if request.method == 'POST' and form.validate():
newUser = User(form.username.data, form.email.data, form.password.data)
db.session.add(newUser)
db.session.commit()
return render_template('login.html')
else:
return render_template('register.html')
And the RegistrationForm method looks like this:
class RegistrationForm(Form):
username = StringField('username', [validators.Length(min=4, max=25)])
email = StringField('email', [validators.email, validators.Length(min=4, max=40)])
password = PasswordField('password',
[validators.Required(),
validators.EqualTo('confirm', message='Passwords skal matche hinanden.')
])
confirm = PasswordField('passwordconfirm')
accept_tos = BooleanField('Jeg accepterer regler for denne hjemmeside', [validators.Required()])

obviously there'snt any problem in these codes unless you have url_prefix for your current app like :
app = Blueprint('user', __name__, url_prefix='/user/')
and u have another blueprint with url_prefix like :
app = Blueprint('general', __name__, url_prefix='/')
with another funtion like :
#app.route('/register', methods=['GET'])
in the blueprint ...
and your form is posting data to '/register' instead of '/user/register'

If that really is the code you're using, I can't see why you're getting a 405 Unsupported Method rather than a validation error. You need to render the hidden CSRF field in the html form.
<form ...>
{{ form.hidden_tag() }}
There are other things wrong with this code. Redirect to login, don't render the template from the register view. Use form.validate_on_submit(). Don't pass request.form to the form. Let the form render the inputs, don't write the html yourself.

Try changing
if request.method == 'POST' and form.validate():
to
if form.validate_on_submit():