diff --git a/alembic.ini b/alembic.ini
new file mode 100644
index 0000000..e041d95
--- /dev/null
+++ b/alembic.ini
@@ -0,0 +1,102 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = migrations
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python-dateutil library that can be
+# installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to migrations/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:migrations/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[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
+
+[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
diff --git a/back/base.py b/back/base.py
new file mode 100644
index 0000000..eb0d312
--- /dev/null
+++ b/back/base.py
@@ -0,0 +1,2 @@
+from .db import Base
+from .models import UserDatabase, Announcement, Trashbox
\ No newline at end of file
diff --git a/back/db.py b/back/db.py
index cab4b6f..23d40cf 100644
--- a/back/db.py
+++ b/back/db.py
@@ -1,6 +1,6 @@
 from typing import AsyncGenerator
 
-from sqlalchemy import Column, Integer, String, create_engine, select
+from sqlalchemy import create_engine, select
 # from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 from sqlalchemy.orm import sessionmaker, Session
 from sqlalchemy.ext.declarative import declarative_base
@@ -15,7 +15,7 @@ engine = create_engine(
     SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False}
 )
 
-SessionLocal = sessionmaker(bind=engine, autoflush=True, autocommit=False, expire_on_commit=False)
+SessionLocal = sessionmaker(bind=engine, autoflush=True, autocommit=False)
 
 database = SessionLocal()
 Base = declarative_base()
\ No newline at end of file
diff --git a/back/main.py b/back/main.py
index e7542a1..0bab08c 100644
--- a/back/main.py
+++ b/back/main.py
@@ -36,8 +36,22 @@ if not os.path.exists("./uploads"):
 app.mount("/uploads", StaticFiles(directory = "./uploads"))
 
 
+# Функция, создающая сессию БД при каждом запросе к нашему API.
+# Срабатывает до запуска остальных функций.
+# Всегда закрывает сессию при окончании работы с ней
+@app.middleware("http")
+async def db_session_middleware(request: Request, call_next):
+    response = Response("Internal server error", status_code=500)
+    try:
+        request.state.db = SessionLocal()
+        response = await call_next(request)
+    finally:
+        request.state.db.close()
+    return response
+
+
 @app.get("/api/announcements")#адрес объявлений 
-def annoncements_list(user_id: int = None, metro: str = None, category: str = None, booked_by: int = -1):
+def annoncements_list(user_id: int = None, metro: str = None, category: str = None, booked_by: int = 0):
     # Считываем данные из Body и отображаем их на странице.
     # В последствии будем вставлять данные в html-форму
 
diff --git a/back/models.py b/back/models.py
index dbab143..9f7e754 100644
--- a/back/models.py
+++ b/back/models.py
@@ -6,7 +6,7 @@ from .db import Base
 class UserDatabase(Base):#класс пользователя
     __tablename__ = "users"
 
-    id = Column(Integer, primary_key=True, index=True)#айди пользователя
+    id = Column(Integer, primary_key=True, index=True, unique=True)#айди пользователя
     phone = Column(Integer, nullable=True)#номер телефона пользователя
     email = Column(String)#электронная почта пользователя
     password = Column(String) # пароль
@@ -44,6 +44,12 @@ class Trashbox(Base):#класс мусорных баков
     category = Column(String)#категория продукта из объявления
     
 
+class Poems(Base):#класс поэзии
+    __tablename__ = "poems"
+
+    id = Column(Integer, primary_key=True, index=True)  #айди 
+    poem_text = Column(String) # текст стихотворения
+
 # from typing import AsyncGenerator
 # from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
 # from fastapi_users.db import SQLAlchemyBaseUserTableUUID, SQLAlchemyUserDatabase
diff --git a/back/service.py b/back/service.py
new file mode 100644
index 0000000..2458976
--- /dev/null
+++ b/back/service.py
@@ -0,0 +1,2 @@
+from sqlalchemy.orm import Session
+
diff --git a/back/utils.py b/back/utils.py
index d128168..53dd12c 100644
--- a/back/utils.py
+++ b/back/utils.py
@@ -1,7 +1,7 @@
 from datetime import datetime, timedelta
 from typing import Annotated, Union
 
-from fastapi import Depends, FastAPI, HTTPException, status, Response
+from fastapi import Depends, FastAPI, HTTPException, status, Response, Request
 from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
 from jose import JWTError, jwt
 from passlib.context import CryptContext
@@ -19,16 +19,6 @@ ALGORITHM = "HS256"
 ACCESS_TOKEN_EXPIRE_MINUTES = 30
 
 
-# fake_users_db = {
-#     "johndoe": {
-#         "email": "johndoe",
-#         "full_name": "John Doe",
-#         "email": "johndoe@example.com",
-#         "hashed_password": "$2b$12$EixZaYVK1fsbw1ZfbX3OXePaWxn96p36WQoeG6Lruj3vjPGga31lW",
-#         "disabled": False,
-#     }
-# }
-
 pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
 
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
@@ -95,4 +85,8 @@ async def get_current_active_user(
 ):
     if current_user.disabled:
         raise HTTPException(status_code=400, detail="Inactive user")
-    return current_user
\ No newline at end of file
+    return current_user
+
+
+def get_db(request: Request):
+    return request.state.db
\ No newline at end of file
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 0000000..98e4f9c
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 0000000..692d4b8
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,85 @@
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+
+from back import db, base
+
+# 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.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = base.Base.metadata
+# target_metadata = None
+
+# 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 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")
+    url = config.get_main_option(db.SQLALCHEMY_DATABASE_URL)
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    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.
+
+    """
+    configuration = config.get_section(config.config_ini_section)
+    configuration['sqlalchemy.url'] = db.SQLALCHEMY_DATABASE_URL
+    connectable = engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 0000000..2c01563
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${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"}
diff --git a/migrations/versions/0006eca30e2c_first.py b/migrations/versions/0006eca30e2c_first.py
new file mode 100644
index 0000000..4f379a7
--- /dev/null
+++ b/migrations/versions/0006eca30e2c_first.py
@@ -0,0 +1,28 @@
+"""first
+
+Revision ID: 0006eca30e2c
+Revises: 
+Create Date: 2023-07-23 22:32:43.496939
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '0006eca30e2c'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###
diff --git a/migrations/versions/18001c2231e3_poems_table_added.py b/migrations/versions/18001c2231e3_poems_table_added.py
new file mode 100644
index 0000000..78675aa
--- /dev/null
+++ b/migrations/versions/18001c2231e3_poems_table_added.py
@@ -0,0 +1,34 @@
+"""Poems table added
+
+Revision ID: 18001c2231e3
+Revises: 33c5716276b5
+Create Date: 2023-07-23 22:50:16.055961
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '18001c2231e3'
+down_revision = '33c5716276b5'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('poems',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('poem_text', sa.String(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_poems_id'), 'poems', ['id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_poems_id'), table_name='poems')
+    op.drop_table('poems')
+    # ### end Alembic commands ###
diff --git a/migrations/versions/33c5716276b5_try_to_make_alembic_see_models.py b/migrations/versions/33c5716276b5_try_to_make_alembic_see_models.py
new file mode 100644
index 0000000..84de522
--- /dev/null
+++ b/migrations/versions/33c5716276b5_try_to_make_alembic_see_models.py
@@ -0,0 +1,70 @@
+"""Try to make alembic see models
+
+Revision ID: 33c5716276b5
+Revises: 0006eca30e2c
+Create Date: 2023-07-23 22:42:07.532395
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '33c5716276b5'
+down_revision = '0006eca30e2c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('announcements',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=True),
+    sa.Column('name', sa.String(), nullable=True),
+    sa.Column('category', sa.String(), nullable=True),
+    sa.Column('best_by', sa.Integer(), nullable=True),
+    sa.Column('address', sa.String(), nullable=True),
+    sa.Column('longtitude', sa.Integer(), nullable=True),
+    sa.Column('latitude', sa.Integer(), nullable=True),
+    sa.Column('description', sa.String(), nullable=True),
+    sa.Column('src', sa.String(), nullable=True),
+    sa.Column('metro', sa.String(), nullable=True),
+    sa.Column('trashId', sa.Integer(), nullable=True),
+    sa.Column('booked_by', sa.Integer(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_announcements_id'), 'announcements', ['id'], unique=False)
+    op.create_table('trashboxes',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(), nullable=True),
+    sa.Column('address', sa.String(), nullable=True),
+    sa.Column('latitude', sa.Integer(), nullable=True),
+    sa.Column('longtitude', sa.Integer(), nullable=True),
+    sa.Column('category', sa.String(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_trashboxes_id'), 'trashboxes', ['id'], unique=False)
+    op.create_table('users',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('phone', sa.Integer(), nullable=True),
+    sa.Column('email', sa.String(), nullable=True),
+    sa.Column('password', sa.String(), nullable=True),
+    sa.Column('hashed_password', sa.String(), nullable=True),
+    sa.Column('name', sa.String(), nullable=True),
+    sa.Column('surname', sa.String(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_users_id'), 'users', ['id'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_users_id'), table_name='users')
+    op.drop_table('users')
+    op.drop_index(op.f('ix_trashboxes_id'), table_name='trashboxes')
+    op.drop_table('trashboxes')
+    op.drop_index(op.f('ix_announcements_id'), table_name='announcements')
+    op.drop_table('announcements')
+    # ### end Alembic commands ###