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''' app.py
from flask import Flask, render_template, request
from weather_backend import temperature_condition,clothes,feels_temperature,weather_description
app = Flask(__name__)
app.config["SECRET_KEY"] = "Secret-key"
@app.route("/")
def index():
return render_template("index.html")
@app.route("/dress")
def dress():
cityname = request.form.get("city_name")
temp = str(temperature_condition())
message = str(clothes())
feels = feels_temperature
description= weather_description
return render_template("dress.html", message=message, temp=temp, feels_temperature=feels,
weather_description=description )
if __name__ == "__main__":
app.run(debug=True)
''' ''' weather_backend.py
import requests, json
import weatherMappingMessage
from app import dress
from keys import *
base_url = "http://api.openweathermap.org/data/2.5/weather?"
city_name =
complete_url = base_url + "appid=" + api_key + "&q=" + city_name + "&units=metric"
response = requests.get(complete_url)
''' HTML file '''
<body>
<div class="head">
<form action= "{{ url_for('dress') }}" class="form" method="GET">
<h1>Get Weather and Dresses according to the Weather</h1>
<div class = "form-box">
<input type="text" class="search-field location" name= "city_name" placeholder="Location...">
<button class="search-btn" type="button">Search</button>
</div>
</form>
</div>
</body>
'''
I need to get the form info(search) from HTML to the backend(city_name) and then to the flask(cityname)
I can get a message from the backend if try to get it but I can't get HTML form to the backend for processing
The problem I'm facing is that I can't get the form data from my HTML file to my backend for processing
basically, I need the cityname to the backend for getting my weather description
580
asked Mar 01 '26 00:03
Short answer:
Because your form submission uses a get request, you can use request.args to get parsed contents of query string (see also):
cityname = request.args.get("city_name")
Long answer:
I'm sure you're asking for more than just this piece of code. I took the code you provided and added the missing pieces in-line (please don't do this for production code) and also passed cityname to render_template:
import logging
from datetime import datetime
from flask import render_template, request
from app import app, forms
@app.route("/")
def index():
return render_template("index.html")
@app.route("/dress")
def dress():
cityname = request.args.get("city_name")
# missing in example code
def temperature_condition():
return 'temp cond'
# missing in example code
def clothes():
return 'clothes'
feels_temperature = 'feels temp' # missing in example code
weather_description = 'weather desc' # missing in example code
temp = str(temperature_condition())
message = str(clothes())
feels = feels_temperature
description = weather_description
return render_template("dress.html", message=message, temp=temp, feels_temperature=feels,
weather_description=description, cityname=cityname) # also pass cityname
I created a minimalistic dress.html:
<html>
<body>
<p>message = {{ message }}</p>
<p>temp = {{ temp }}</p>
<p>feels_temperature = {{ feels_temperature }}</p>
<p>weather_description = {{ weather_description }}</p>
<p>cityname = {{ cityname }}</p>
</body>
</html>
Starting the application via flask run allows me to input a city name into the form field and view the results (for example 'Berlin'):
In order to show the weather description for the chosen city, you could create a function that accepts the city name and retrieves the information from the web (just a rough sketch):
import requests, json
import weatherMappingMessage
from app import dress
from keys import *
def weather_for_city(city_name):
base_url = "http://api.openweathermap.org/data/2.5/weather?"
complete_url = base_url + "appid=" + api_key + "&q=" + city_name + "&units=metric"
response = requests.get(complete_url)
if response.status_code == 200:
return response.json() # assumes your API returns a JSON response
else:
# perform some error handling here, maybe apply a retry strategy
pass
Extract the relevant data from the result of weather_for_city and pass it to render_template like you did for the other variables.
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