# Flask Get Named URL Parameters

> Access query parameters with request.args.get(), including default values and type casting, in a Flask route

**URL:** https://sentry.io/answers/flask-named-parameters-from-url/

---

## The Problem

How can I get the named parameters from a URL using Flask?

## The Solution

Flask provides a global request object that contains all sorts of [information about the current HTTP request](https://flask.palletsprojects.com/en/stable/api/?#flask.Request). Flask also parses the incoming request data for you.

You can use the `args` property of this global request object to get the values of query parameters.

For example, to access the query parameters of the following URL:

`http://mysite.com/query_example?language=Python&framework=Flask`

You can use the `get` method on `request.args`, like so:

```python
# import main Flask class and request object
from flask import Flask, request

# create the Flask app
app = Flask(__name__)

@app.route('/query_example')
def query_example():
    language = request.args.get('language')
    framework = request.args.get('framework')

    print(f'language: {language}, framework: {framework}')
    return 'Query Parameters Example'

if __name__ == '__main__':
    app.run(debug=True, port=5000)
```

You will get:

```powershell
language: Python, framework: Flask
```

The `request.args` attribute is an [ImmutableMultiDict](https://werkzeug.palletsprojects.com/en/stable/datastructures/#werkzeug.datastructures.ImmutableMultiDict) that implements all standard dictionary methods.

The `get` method also takes optional arguments for default value and type. The following example should explain this behavior:

```python
def query_example():
    language = request.args.get('language', default='Python')
    framework = request.args.get('framework', default='Flask')
```

For `/query_example?language=JavaScript`:

```powershell
language: JavaScript, framework: Flask
```

For `/query_example`:

```powershell
language: Python, framework: Flask
```

For `/query_example?language=JavaScript&framework=Express`:

```powershell
language: JavaScript, framework: Express
```

For `/query_example?framework=Express`:

```powershell
language: Python, framework: Express
```

## Further Reading

[How do you access the query string in Flask routes?](https://sentry.io/answers/flask-query-string/)

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*Source: [sentry.io/answers/flask-named-parameters-from-url/](https://sentry.io/answers/flask-named-parameters-from-url/)*