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Author: borisbasic

.flaskenv

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+FLASK_APP = app
+FLASK_DEBUG = 1
+

.gitignore

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+.venv
+.idea
+__pycache__
+instance
+worked_earlier.txt
+*.pyc
+.DS_Store

app.py

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+import os
+from flask import Flask, jsonify
+from flask_smorest import Api
+from flask_jwt_extended import JWTManager
+from flask_migrate import Migrate
+from db import db
+from blocklist import BLOCKLIST
+import models
+from resources.item import blp as ItemBlueprint
+from resources.store import blp as StoreBlueprint
+from resources.tag import blp as TagBlueprint
+from resources.user import blp as UserBlueprint
+
+def create_app(db_url=None):
+    app = Flask(__name__)
+
+    #app.config['PROPAGATE_EXCEPTIONS'] = True
+    app.config['API_TITLE'] = 'Stores REST API' #api needs this
+    app.config['API_VERSION'] = 'v1' #api needs this
+    app.config['OPENAPI_VERSION'] = '3.0.3' #api needs this
+    app.config['OPENAPI_URL_PREFIX'] = '/'  #swagger needs this
+    app.config['OPENAPI_SWAGGER_UI_PATH'] = '/swagger-ui'  #swagger needs this
+    app.config['OPENAPI_SWAGGER_UI_URL'] = "https://cdn.jsdelivr.net/npm/swagger-ui-dist/" #swagger needs this
+    app.config['SQLALCHEMY_DATABASE_URI'] = db_url or os.getenv('DATABASE_URL', 'sqlite:///data.db')
+    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+    db.init_app(app)
+    migrate = Migrate(app, db)
+    api = Api(app)
+
+    app.config['JWT_SECRET_KEY'] = 'jose'
+    jwt = JWTManager(app)
+
+    @jwt.token_in_blocklist_loader
+    def check_if_token_in_blocklist(jwt_header, jwt_payload):
+        return jwt_payload['jti'] in BLOCKLIST
+    
+    @jwt.revoked_token_loader
+    def revoked_token_callback(jwt_header, jwt_payload):
+        return (jsonify({'descrition':'The token has been revoked','error':'token_revoked'}), 401,)
+    
+    @jwt.needs_fresh_token_loader
+    def token_not_fresh_callback(jwt_header, jwt_payload):
+        return (jsonify({'description':'The token is not fresh', 'error':'fresh_token_required.'}), 401,)
+
+    @jwt.additional_claims_loader
+    def add_claims_to_jwt(identity):
+        if identity == 1:
+            return {'is admin':True}
+        return {'is admin':False}
+
+    @jwt.expired_token_loader
+    def expired_token_callback(jwt_header, jwt_payload):
+        return(jsonify({'message':'The token has expired', 'error':'token_expired'}), 401,)
+    
+    @jwt.invalid_token_loader
+    def invalid_token_callbak(error):
+        return (jsonify({'message':'Signature verification failed','error':'invalid token'}), 401,)
+    
+    @jwt.unauthorized_loader
+    def missing_token_callback(error):
+        return (jsonify({'description':'Request does not contain an access token', 'error':'authorizatiion_required'}))
+
+    #with app.app_context():
+      #  db.create_all()
+    api.register_blueprint(StoreBlueprint) 
+    api.register_blueprint(ItemBlueprint)   
+    api.register_blueprint(TagBlueprint)
+    api.register_blueprint(UserBlueprint)
+    return app
+
+
+
+ 
+

blocklist.py

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+BLOCKLIST = set()  #for storing JWT is the best in the DATABASE or the best best is REDIS

db.py

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+from flask_sqlalchemy import SQLAlchemy
+
+db = SQLAlchemy()

migrations/README

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+Single-database configuration for Flask.

migrations/alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic,flask_migrate
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[logger_flask_migrate]
+level = INFO
+handlers =
+qualname = flask_migrate
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

migrations/env.py

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+import logging
+from logging.config import fileConfig
+
+from flask import current_app
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+
+def get_engine():
+    try:
+        # this works with Flask-SQLAlchemy<3 and Alchemical
+        return current_app.extensions['migrate'].db.get_engine()
+    except TypeError:
+        # this works with Flask-SQLAlchemy>=3
+        return current_app.extensions['migrate'].db.engine
+
+
+def get_engine_url():
+    try:
+        return get_engine().url.render_as_string(hide_password=False).replace(
+            '%', '%%')
+    except AttributeError:
+        return str(get_engine().url).replace('%', '%%')
+
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+config.set_main_option('sqlalchemy.url', get_engine_url())
+target_db = current_app.extensions['migrate'].db
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def get_metadata():
+    if hasattr(target_db, 'metadatas'):
+        return target_db.metadatas[None]
+    return target_db.metadata
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=get_metadata(), literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    connectable = get_engine()
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=get_metadata(),
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

migrations/versions/1bbe1d722e6d_.py

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+"""empty message
+
+Revision ID: 1bbe1d722e6d
+Revises: 
+Create Date: 2023-03-04 23:40:50.487046
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '1bbe1d722e6d'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('stores',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=80), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('users',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('username', sa.String(length=80), nullable=False),
+    sa.Column('password', sa.String(length=80), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('username')
+    )
+    op.create_table('items',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=80), nullable=False),
+    sa.Column('price', sa.Float(precision=2), nullable=False),
+    sa.Column('store_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['store_id'], ['stores.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('tags',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=80), nullable=False),
+    sa.Column('store_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['store_id'], ['stores.id'], ),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('items_tags',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('item_id', sa.Integer(), nullable=True),
+    sa.Column('tag_id', sa.Integer(), nullable=True),
+    sa.ForeignKeyConstraint(['item_id'], ['items.id'], ),
+    sa.ForeignKeyConstraint(['tag_id'], ['tags.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('items_tags')
+    op.drop_table('tags')
+    op.drop_table('items')
+    op.drop_table('users')
+    op.drop_table('stores')
+    # ### end Alembic commands ###

migrations/versions/8ab68295c0d2_.py

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+"""empty message
+
+Revision ID: 8ab68295c0d2
+Revises: 1bbe1d722e6d
+Create Date: 2023-03-04 23:48:21.099340
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '8ab68295c0d2'
+down_revision = '1bbe1d722e6d'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('items', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('description', sa.String(), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('items', schema=None) as batch_op:
+        batch_op.drop_column('description')
+
+    # ### end Alembic commands ###

models/__init__.py

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+from models.store import StoreModel
+from models.item import ItemModel
+from models.tag import TagModel
+from models.item_tags import ItemTags
+from models.user import UserModel