how to get value from txtbox in flask

To get the value from a textbox in Flask, you can follow these steps:

  1. First, make sure you have the Flask framework installed. You can install it by running the command pip install flask in your terminal.

  2. Create a new Flask application by importing the necessary modules and initializing the Flask app object:

from flask import Flask, request

app = Flask(__name__)
  1. Define a route for the page that contains the textbox. In this example, let's assume the textbox is on the homepage ("/"):
@app.route("/", methods=["GET", "POST"])
def home():
    if request.method == "POST":
        textbox_value = request.form.get("textbox_name")
        # Process the textbox value here
        return "Textbox value: " + textbox_value
    return """
        <form method="POST">
            <input type="text" name="textbox_name">
            <input type="submit" value="Submit">
        </form>
    """

  1. Inside the route function, check if the request method is "POST". This means that the form has been submitted. If it is, retrieve the value from the textbox using request.form.get("textbox_name"), where "textbox_name" is the name attribute of the input element in the HTML form.

  2. You can then process the textbox value as needed. In this example, we simply return the value as a response, but you can perform any additional processing or validation required.

  3. If the request method is not "POST", it means that the page is being accessed for the first time, so we display the HTML form. You can customize the form as needed.

  4. Finally, run the Flask application:

if __name__ == "__main__":
    app.run()

This will start the Flask development server and allow you to access the application in your browser.

When you access the homepage, you'll see a form with a textbox and a submit button. When you enter a value in the textbox and submit the form, the value will be retrieved in the textbox_value variable. You can then process it according to your requirements.

Remember to replace "textbox_name" with the actual name attribute of your textbox element, and customize the form and processing logic as needed for your specific application.