How to send args to flask function?

I need to send arg to my flask function but I have 'missing 1 required positional argument' error. What I should do to solve this problem.

check = True
@app.route('/sortbysalary', methods=['POST'])
def sortbysalary(check):
    if request.method == 'POST':
        if check is True:
            conn = sqlite3.connect('employees.db')
            c = conn.cursor()
            with conn:
                # no case carre
                c.execute("SELECT * FROM employee ORDER BY pay COLLATE NOCASE DESC")
            query = c.fetchall()
            check = False
            print(check)
        else:
            conn = sqlite3.connect('employees.db')
            c = conn.cursor()
            with conn:
                # no case carre
                c.execute("SELECT * FROM employee ORDER BY pay COLLATE NOCASE ASC")
            query = c.fetchall()
            check = True
            print(check)
        return render_template('show.html', query=query)