from API to ip

[nilamo]

@app.route("/")
def main():
response = requests.get("API",auth=('user', 'pass'))
data = response.json()
return jsonify()

You're returning an empty json object. That last line should be return data or return jsonify(data) if you want to send it to the client.

this code receive data from html form how receive data if user requests for example with curl or something?

Exactly the same way. Making a POST request is the same, whether it's from curl or javascript or html-forms. If you use curl to post to /, you should get the text.