Flask Blueprint Generator Create organized Flask blueprints for modular application structure. ## Usage ``bash # Create a new blueprint flask create-blueprint users flask create-blueprint api/v1 ` ## Blueprint Structure Generates a complete blueprint with: - Routes and view functions - Error handlers - Template folder structure - Static file organization ## Example Blueprint `python # app/blueprints/users/__init__.py from flask import Blueprint users_bp = Blueprint( 'users', __name__, url_prefix='/users', template_folder='templates', static_folder='static' ) from . import routes, models # app/blueprints/users/routes.py from flask import render_template, request, redirect, url_for, flash from . import users_bp from .models import User from .forms import UserForm @users_bp.route('/') def index(): """List all users.""" users = User.query.all() return render_template('users/index.html', users=users) @users_bp.route('/create', methods=['GET', 'POST']) def create(): """Create a new user.""" form = UserForm() if form.validate_on_submit(): user = User( username=form.username.data, email=form.email.data ) user.save() flash('User created successfully!', 'success') return redirect(url_for('users.index')) return render_template('users/create.html', form=form) @users_bp.route('/<int:user_id>') def detail(user_id): """Show user details.""" user = User.query.get_or_404(user_id) return render_template('users/detail.html', user=user) @users_bp.route('/<int:user_id>/edit', methods=['GET', 'POST']) def edit(user_id): """Edit an existing user.""" user = User.query.get_or_404(user_id) form = UserForm(obj=user) if form.validate_on_submit(): user.username = form.username.data user.email = form.email.data user.save() flash('User updated successfully!', 'success') return redirect(url_for('users.detail', user_id=user.id)) return render_template('users/edit.html', form=form, user=user) @users_bp.route('/<int:user_id>/delete', methods=['POST']) def delete(user_id): """Delete a user.""" user = User.query.get_or_404(user_id) user.delete() flash('User deleted successfully!', 'success') return redirect(url_for('users.index')) # Error handlers @users_bp.errorhandler(404) def not_found(error): return render_template('users/404.html'), 404 @users_bp.errorhandler(500) def internal_error(error): return render_template('users/500.html'), 500 ` ## Blueprint Models `python # app/blueprints/users/models.py from app.extensions import db from werkzeug.security import generate_password_hash, check_password_hash from datetime import datetime class User(db.Model): """User model.""" __tablename__ = 'users' id = db.Column(db.Integer, primary_key=True) username = db.Column(db.String(80), unique=True, nullable=False) email = db.Column(db.String(120), unique=True, nullable=False) password_hash = db.Column(db.String(255), nullable=False) created_at = db.Column(db.DateTime, default=datetime.utcnow) updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow) is_active = db.Column(db.Boolean, default=True) def __repr__(self): return f'<User {self.username}>' def set_password(self, password): """Set password hash.""" self.password_hash = generate_password_hash(password) def check_password(self, password): """Check password hash.""" return check_password_hash(self.password_hash, password) def save(self): """Save user to database.""" db.session.add(self) db.session.commit() def delete(self): """Delete user from database.""" db.session.delete(self) db.session.commit() def to_dict(self): """Convert to dictionary.""" return { 'id': self.id, 'username': self.username, 'email': self.email, 'created_at': self.created_at.isoformat(), 'is_active': self.is_active } ` ## Blueprint Forms ``python # app/blueprints/users/forms.py from flaskwtf import FlaskForm from wtforms import StringField, EmailField, PasswordField, BooleanField from wtforms.validators import DataRequired, Email, Length, EqualTo from .models import User class UserForm(FlaskForm): """User creation/edit form.""" username = StringField( 'Username', validators=[ DataRequired(), Length(min=3, max=80) ] ) email = EmailField( 'Email', validators=[ DataRequired(), Email(), Length(max=120) ] ) password = PasswordField( 'Password', validators=[ DataRequired(), Length(min=8) ] ) confirmpassword = Pa