Howdy,
I just want to share a simple example of how to get and use information when a client connects to your app.
https://anvil.works/build#clone:UPVFD5WWFUJ7Q5ZR=OPYBGX6OWJOAPUABHSDQ2UYZ
In the example we define a server side function (callable) which parses the anvil.server.context.client object.
@anvil.server.callable
def check_client_info():
client_info = anvil.server.context.client # returns client info object
type = client_info.type
ip = client_info.ip
country = client_info.location.country
country_code = client_info.location.country_code
city = client_info.location.city
subdivision = client_info.location.subdivision
longitude = client_info.location.longitude
latitude = client_info.location.latitude
# in this example we are only interested in the country
return country
When the form is initialized e.g. when a client connects, we call the server side function check_client_info. In this example, the form will only load if the client is located in Sweden.
class Form1(Form1Template):
def __init__(self, **properties):
resp = anvil.server.call('check_client_info')
while resp != "Sweden":
alert("This app is only allowed in Sweden")
self.label_1.text = f"You connected to the app from {resp}"
# Set Form properties and Data Bindings.
self.init_components(**properties)
Happy hacking 