Flask Blueprint Structure

@bp.route("/challenges/<int:challenge_id>", methods=["GET", "POST"])
@login_required
def challenge_detail(challenge_id):
    challenge = Challenge.query.get_or_404(challenge_id)
    
    if request.method == "POST":
        # Process answer submissions
        for answer_box in challenge.answer_boxes:
            submitted = request.form.get(f"answer_{answer_box.id}")
            is_correct = answer_box.check_answer(submitted)
            # Create AnswerSubmission record
    
    return render_template("main/challenge_detail.html", 
                          challenge=challenge)

leaderboard = LeaderboardEntry.query.filter_by(
    key_stage=request.args.get('key_stage', 'KS4')
).order_by(LeaderboardEntry.score.desc()).limit(50).all()

@bp.route("/login", methods=["GET", "POST"])
def login():
    if request.method == "POST":
        user = User.query.filter_by(email=form.email.data).first()
        
        if user and user.check_password(form.password.data):
            login_user(user, remember=form.remember_me.data)
            return redirect(url_for('main.index'))
        
        flash("Invalid credentials", "error")
    
    return render_template("auth/login.html")

@bp.route("/logout")
@login_required
def logout():
    logout_user()
    return redirect(url_for('main.index'))

@bp.route("/admin/challenges/toggle_lock/<int:challenge_id>", 
          methods=["POST"])
@login_required
@admin_required
def toggle_challenge_lock(challenge_id):
    challenge = Challenge.query.get_or_404(challenge_id)
    challenge.is_manually_locked = not challenge.is_manually_locked
    db.session.commit()
    return redirect(url_for('admin.challenges'))

{
  "total_users": 1250,
  "by_key_stage": {
    "KS3": 400,
    "KS4": 550,
    "KS5": 300
  },
  "active_today": 87
}

@bp.route("/change_password", methods=["GET", "POST"])
@login_required
def change_password():
    if request.method == "POST":
        if not current_user.check_password(form.current_password.data):
            flash("Current password is incorrect", "error")
            return redirect(url_for('profile.change_password'))
        
        current_user.set_password(form.new_password.data)
        db.session.commit()
        flash("Password updated successfully", "success")
    
    return render_template("profile/change_password.html")

{
  "expr1": "2*x + 3",
  "expr2": "3 + 2*x"
}

{
  "equivalent": true,
  "expr1": "2*x + 3",
  "expr2": "3 + 2*x",
  "expr1_normalized": "2*x + 3",
  "expr2_normalized": "2*x + 3"
}

{
  "expression": "2x + 3"
}

{
  "original": "2x + 3",
  "normalized": "2*x + 3"
}