diff --git a/cmd/main.go b/cmd/main.go
index 3f67c6a..893a8a7 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -21,6 +21,7 @@ func main() {
 
 	pg := postgres.New(ctx, "postgres://draincloud:draincloud@localhost:5432/draincloud?sslmode=disable")
 
+	// TODO move cron on a separate job (k8s cronjob / docker cron)
 	cleanupSessionsCron := cleanupsessions.New(pg)
 	cleanupSessionsCron.Run(ctx)
 
diff --git a/go.mod b/go.mod
index c63c765..c3ce09d 100644
--- a/go.mod
+++ b/go.mod
@@ -7,8 +7,10 @@ require (
 	github.com/fatih/color v1.17.0
 	github.com/fsnotify/fsnotify v1.7.0
 	github.com/gin-gonic/gin v1.10.0
+	github.com/google/uuid v1.4.0
 	github.com/jackc/pgx/v5 v5.7.1
 	github.com/jmoiron/sqlx v1.4.0
+	github.com/nats-io/nats.go v1.37.0
 	github.com/spf13/viper v1.19.0
 	github.com/stretchr/testify v1.9.0
 	golang.org/x/crypto v0.28.0
@@ -38,7 +40,6 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/nats-io/nats.go v1.37.0 // indirect
 	github.com/nats-io/nkeys v0.4.7 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
diff --git a/go.sum b/go.sum
index 0db5302..6a37bc1 100644
--- a/go.sum
+++ b/go.sum
@@ -39,6 +39,8 @@ github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MG
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/google/uuid v1.4.0 h1:MtMxsa51/r9yyhkyLsVeVt0B+BGQZzpQiTQ4eHZ8bc4=
+github.com/google/uuid v1.4.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
diff --git a/internal/app/app.go b/internal/app/app.go
index e689f4d..9c08abd 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -32,7 +32,7 @@ func New(
 	authGroup := mux.Group("/auth")
 	{
 		authGroup.POST("/register", d.Register)
-		authGroup.POST("/login", d.Login)
+		authGroup.POST("/logon", d.Login)
 	}
 
 	filesGroup := mux.Group("/files")
diff --git a/internal/files_engine/engine.go b/internal/files_engine/engine.go
index 0866b0d..90aab39 100644
--- a/internal/files_engine/engine.go
+++ b/internal/files_engine/engine.go
@@ -6,6 +6,7 @@ import (
 
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/storage"
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/storage/models/files"
+	"github.com/google/uuid"
 )
 
 type FilesEngine struct {
@@ -25,7 +26,7 @@ func NewFilesEngine(
 
 type File struct {
 	Name   string
-	UserID int64
+	UserID uuid.UUID
 	Ext    string
 	Type   string
 	Size   int64
@@ -36,14 +37,14 @@ type File struct {
 func (e *FilesEngine) SaveFile(
 	ctx context.Context,
 	file File,
-) (int64, error) {
+) (uuid.UUID, error) {
 	fileID, err := e.metaStorage.SaveMetadata(ctx, files.FileMetadata{})
 	if err != nil {
-		return -1, fmt.Errorf("failed to create new file metadata: %w", err)
+		return uuid.Nil, fmt.Errorf("failed to create new file metadata: %w", err)
 	}
 
 	if err = e.blobStorage.SaveBlob(ctx, fileID, file.Data); err != nil {
-		return -1, fmt.Errorf("failed to save file data: %w", err)
+		return uuid.Nil, fmt.Errorf("failed to save file data: %w", err)
 	}
 
 	return fileID, nil
diff --git a/internal/storage/interface.go b/internal/storage/interface.go
index 2fc922f..27d9759 100644
--- a/internal/storage/interface.go
+++ b/internal/storage/interface.go
@@ -7,6 +7,7 @@ import (
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/storage/models"
 	auditmodels "git.optclblast.xyz/draincloud/draincloud-core/internal/storage/models/audit"
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/storage/models/files"
+	"github.com/google/uuid"
 )
 
 type Database interface {
@@ -14,13 +15,13 @@ type Database interface {
 }
 
 type AuthStorage interface {
-	AddUser(ctx context.Context, login string, username string, passwordHash []byte) (int64, error)
+	AddUser(ctx context.Context, login string, username string, passwordHash []byte) (uuid.UUID, error)
 	GetUserByLogin(ctx context.Context, login string) (*models.User, error)
-	GetUserByID(ctx context.Context, id uint64) (*models.User, error)
+	GetUserByID(ctx context.Context, id uuid.UUID) (*models.User, error)
 
-	AddSession(ctx context.Context, ses *models.Session) (int64, error)
+	AddSession(ctx context.Context, ses *models.Session) (uuid.UUID, error)
 	GetSession(ctx context.Context, sessionToken string) (*models.Session, error)
-	RemoveSession(ctx context.Context, id int64) error
+	RemoveSession(ctx context.Context, id uuid.UUID) error
 }
 
 type AuthAuditLogStorage interface {
@@ -28,11 +29,11 @@ type AuthAuditLogStorage interface {
 }
 
 type MetaStorage interface {
-	SaveMetadata(ctx context.Context, meta files.FileMetadata) (int64, error)
+	SaveMetadata(ctx context.Context, meta files.FileMetadata) (uuid.UUID, error)
 }
 
 type BlobStorage interface {
-	GetFile(ctx context.Context, id int64) (*os.File, error)
-	SaveBlob(ctx context.Context, id int64, data []byte) error
-	DeleteFile(ctx context.Context, id int64) error
+	GetFile(ctx context.Context, id uuid.UUID) (*os.File, error)
+	SaveBlob(ctx context.Context, id uuid.UUID, data []byte) error
+	DeleteFile(ctx context.Context, id uuid.UUID) error
 }
diff --git a/internal/storage/models/auth.go b/internal/storage/models/auth.go
index 503e291..a75853d 100644
--- a/internal/storage/models/auth.go
+++ b/internal/storage/models/auth.go
@@ -1,18 +1,22 @@
 package models
 
-import "time"
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
 
 type Session struct {
-	ID           int64
+	ID           uuid.UUID
 	SessionToken string
 	CsrfToken    string
-	UserID       int64
+	UserID       uuid.UUID
 	CreatedAt    time.Time
 	ExpiredAt    time.Time
 }
 
 type User struct {
-	ID           int64
+	ID           uuid.UUID
 	Username     string
 	Login        string
 	PasswordHash []byte
diff --git a/internal/storage/models/files/files.go b/internal/storage/models/files/files.go
index 599b07e..8e26b1e 100644
--- a/internal/storage/models/files/files.go
+++ b/internal/storage/models/files/files.go
@@ -1,7 +1,9 @@
 package files
 
+import "github.com/google/uuid"
+
 type FileMetadata struct {
-	Id     int64
+	Id     uuid.UUID
 	Name   string
 	UserID int64
 	Ext    string
diff --git a/internal/storage/postgres/database.go b/internal/storage/postgres/database.go
index b9feb00..700e2ad 100644
--- a/internal/storage/postgres/database.go
+++ b/internal/storage/postgres/database.go
@@ -10,6 +10,7 @@ import (
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/closer"
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/logger"
 	"git.optclblast.xyz/draincloud/draincloud-core/internal/storage/models"
+	"github.com/google/uuid"
 	"github.com/jackc/pgx/v5"
 	"github.com/jackc/pgx/v5/pgconn"
 )
@@ -39,11 +40,11 @@ type dbtx interface {
 	Query(ctx context.Context, sql string, args ...any) (pgx.Rows, error)
 }
 
-func (d *Database) AddUser(ctx context.Context, login string, username string, passwordHash []byte) (int64, error) {
+func (d *Database) AddUser(ctx context.Context, login string, username string, passwordHash []byte) (uuid.UUID, error) {
 	return addUser(ctx, d.db, login, username, passwordHash)
 }
 
-func (d *Database) GetUserByID(ctx context.Context, id uint64) (*models.User, error) {
+func (d *Database) GetUserByID(ctx context.Context, id uuid.UUID) (*models.User, error) {
 	return getUserByID(ctx, d.db, id)
 }
 
@@ -51,7 +52,7 @@ func (d *Database) GetUserByLogin(ctx context.Context, login string) (*models.Us
 	return getUserByLogin(ctx, d.db, login)
 }
 
-func (d *Database) AddSession(ctx context.Context, ses *models.Session) (int64, error) {
+func (d *Database) AddSession(ctx context.Context, ses *models.Session) (uuid.UUID, error) {
 	return addSession(ctx, d.db, ses)
 }
 
@@ -64,9 +65,9 @@ func (d *Database) GetSession(ctx context.Context, sessionToken string) (*models
 	row := d.db.QueryRow(ctx, stmt, sessionToken)
 
 	var (
-		id                  int64
+		id                  uuid.UUID
 		sesToken, csrfToken string
-		userID              int64
+		userID              uuid.UUID
 		createdAt           sql.NullTime
 		expiredAt           sql.NullTime
 	)
@@ -85,7 +86,7 @@ func (d *Database) GetSession(ctx context.Context, sessionToken string) (*models
 	}, nil
 }
 
-func (d *Database) RemoveSession(ctx context.Context, id int64) error {
+func (d *Database) RemoveSession(ctx context.Context, id uuid.UUID) error {
 	const stmt = `DELETE FROM sessions WHERE id = $1;`
 	_, err := d.db.Exec(ctx, stmt, id)
 	return err
@@ -98,20 +99,20 @@ func (d *Database) RemoveExpiredSessions(ctx context.Context) error {
 	return err
 }
 
-func addUser(ctx context.Context, conn dbtx, login string, username string, passwordHash []byte) (int64, error) {
+func addUser(ctx context.Context, conn dbtx, login string, username string, passwordHash []byte) (uuid.UUID, error) {
 	const stmt = `INSERT INTO users (login,username,password)
 		VALUES ($1,$2,$3) RETURNING id`
 
 	row := conn.QueryRow(ctx, stmt, login, username, passwordHash)
-	var id int64
+	var id uuid.UUID
 	if err := row.Scan(&id); err != nil {
-		return 0, fmt.Errorf("failed to insert user data into users table: %w", err)
+		return uuid.Nil, fmt.Errorf("failed to insert user data into users table: %w", err)
 	}
 
 	return id, nil
 }
 
-func getUserByID(ctx context.Context, conn dbtx, id uint64) (*models.User, error) {
+func getUserByID(ctx context.Context, conn dbtx, id uuid.UUID) (*models.User, error) {
 	const stmt = `SELECT * FROM users WHERE id = $1 LIMIT 1`
 	u := new(models.User)
 	row := conn.QueryRow(ctx, stmt, id)
@@ -133,13 +134,13 @@ func getUserByLogin(ctx context.Context, conn dbtx, login string) (*models.User,
 	return u, nil
 }
 
-func addSession(ctx context.Context, conn dbtx, session *models.Session) (int64, error) {
+func addSession(ctx context.Context, conn dbtx, session *models.Session) (uuid.UUID, error) {
 	const stmt = `INSERT INTO sessions (session_token, csrf_token, user_id, 
 		created_at, expired_at) VALUES ($1, $2, $3, $4, $5) RETURNING id;`
-	var id int64
+	var id uuid.UUID
 	row := conn.QueryRow(ctx, stmt, session.SessionToken, session.CsrfToken, session.UserID, session.CreatedAt, session.ExpiredAt)
 	if err := row.Scan(&id); err != nil {
-		return 0, fmt.Errorf("failed to insert new session: %w", err)
+		return uuid.Nil, fmt.Errorf("failed to insert new session: %w", err)
 	}
 
 	return id, nil
diff --git a/migrations/20241214071428_init.sql b/migrations/20241214071428_init.sql
index e8be9e3..702f49a 100644
--- a/migrations/20241214071428_init.sql
+++ b/migrations/20241214071428_init.sql
@@ -4,7 +4,7 @@ SELECT 'up SQL query';
 
 -- Users as auth data
 create table if not exists users (
-	id bigserial primary key,
+	id uuid primary key,
 	username text default null,
 	login text not null unique,
 	password bytea not null,
@@ -18,10 +18,10 @@ create index idx_users_username on users (username);
 
 -- Sessions and auth data
 create table sessions (
-	id bigserial primary key,
+	id uuid primary key,
 	session_token varchar(200) not null unique,
 	csrf_token varchar(200) not null unique,
-	user_id bigserial references users(id),
+	user_id uuid references users(id),
 	created_at timestamp default current_timestamp,
 	expired_at timestamp not null
 );
@@ -30,13 +30,13 @@ create index if not exists idx_sessions_session_token_csrf_token on sessions (se
 
 -- Files
 create table files_metadata (
-	id bigserial primary key, 
+	id uuid primary key, 
 	name text not null, 
 	fslink text not null, 
 	size bigint not null, 
 	ext text not null, 
-	owner_id bigint not null,
-	parent_dir bigint not null, 
+	owner_id uuid not null,
+	parent_dir uuid not null, 
 	created_at timestamptz default current_timestamp, 
 	updated_at timestamptz default null,
 	deleted_at timestamptz default null
@@ -46,10 +46,10 @@ create index idx_fm_owner_id on files_metadata(owner_id);
 create index idx_fm_owner_id_parent_dir on files_metadata(owner_id, parent_dir); 
 
 create table directories (
-	id bigserial primary key,
+	id uuid primary key,
 	name text not null, 
-	owner_id bigint not null, 
-	parent_dir bigint not null,
+	owner_id uuid not null, 
+	parent_dir uuid not null,
 	created_at timestamptz default current_timestamp, 
 	updated_at timestamptz default null,
 	deleted_at timestamptz default null
@@ -58,9 +58,9 @@ create table directories (
 create index idx_directories_owner_id_parent_dir on directories(owner_id, parent_dir);
 
 create table directory_users_access (
-	id bigserial primary key,
-	dir_id bigint not null,
-	user_id bigint not null, 
+	id uuid primary key,
+	dir_id uuid not null,
+	user_id uuid not null, 
 	assess_flag integer,
 	created_at timestamptz default current_timestamp, 
 	updated_at timestamptz default null
@@ -68,8 +68,4 @@ create table directory_users_access (
 
 create index idx_dua_owner_id_parent_dir on directories(owner_id, parent_dir);
 
--- +goose Down
--- +goose StatementBegin
-SELECT 'down SQL query';
--- +goose StatementEnd