diff --git a/apps/api/src/app.module.ts b/apps/api/src/app.module.ts
index 7ae2b8d..ea634bd 100644
--- a/apps/api/src/app.module.ts
+++ b/apps/api/src/app.module.ts
@@ -2,7 +2,6 @@ import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { AuthModule } from './auth/auth.module';
 import { env } from './config/env';
-import { LdapModule } from './ldap/ldap.module';
 import { UsersModule } from './users/users.module';
 import { Global, Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
@@ -25,7 +24,6 @@ import { MongooseModule } from '@nestjs/mongoose';
     }),
     AuthModule,
     UsersModule,
-    LdapModule,
     MongooseModule.forRoot(`mongodb://${env.MONGO_HOST}`),
   ],
   providers: [AppService],
diff --git a/apps/api/src/auth/auth.controller.ts b/apps/api/src/auth/auth.controller.ts
index f93f9f3..8f3b558 100644
--- a/apps/api/src/auth/auth.controller.ts
+++ b/apps/api/src/auth/auth.controller.ts
@@ -2,7 +2,7 @@
 /* eslint-disable class-methods-use-this */
 /* eslint-disable import/no-extraneous-dependencies */
 import { AuthService } from './auth.service';
-import { Credentials } from './types/request';
+import { Credentials } from './dto/credentials';
 import type { CookieSerializeOptions } from '@fastify/cookie';
 import { Body, Controller, Get, HttpException, HttpStatus, Post, Req, Res } from '@nestjs/common';
 import { FastifyReply, FastifyRequest } from 'fastify';
diff --git a/apps/api/src/auth/auth.module.ts b/apps/api/src/auth/auth.module.ts
index 410c056..e633f3c 100644
--- a/apps/api/src/auth/auth.module.ts
+++ b/apps/api/src/auth/auth.module.ts
@@ -1,4 +1,3 @@
-import { LdapModule } from '../ldap/ldap.module';
 import { UsersModule } from '../users/users.module';
 import { AuthController } from './auth.controller';
 import { AuthService } from './auth.service';
@@ -6,7 +5,7 @@ import { Module } from '@nestjs/common';
 
 @Module({
   controllers: [AuthController],
-  imports: [UsersModule, LdapModule],
+  imports: [UsersModule],
   providers: [AuthService],
 })
 // eslint-disable-next-line @typescript-eslint/no-extraneous-class
diff --git a/apps/api/src/auth/auth.service.ts b/apps/api/src/auth/auth.service.ts
index 5d09216..a45be96 100644
--- a/apps/api/src/auth/auth.service.ts
+++ b/apps/api/src/auth/auth.service.ts
@@ -1,20 +1,19 @@
-import { LdapService } from '../ldap/ldap.service';
 import { UsersCache } from '../users/users.cache';
 import type { DecodedToken, TokenPayload } from './types/jwt';
 import { Injectable } from '@nestjs/common';
 import { JwtService } from '@nestjs/jwt';
 import { env } from 'src/config/env';
+import * as ldap from 'src/utils/ldap';
 
 @Injectable()
 export class AuthService {
   constructor(
-    private readonly ldapService: LdapService,
     private readonly usersCache: UsersCache,
     private readonly jwtService: JwtService
   ) {}
 
   public async login(login: string, password: string) {
-    const user = await this.ldapService.authenticate(login, password);
+    const user = await ldap.authenticate(login, password);
     const { username } = user;
 
     await this.usersCache.addUser(username, user);
diff --git a/apps/api/src/auth/dto/credentials.ts b/apps/api/src/auth/dto/credentials.ts
new file mode 100644
index 0000000..0c642fa
--- /dev/null
+++ b/apps/api/src/auth/dto/credentials.ts
@@ -0,0 +1,4 @@
+export class Credentials {
+  readonly login: string;
+  readonly password: string;
+}
diff --git a/apps/api/src/auth/types/jwt.ts b/apps/api/src/auth/types/jwt.ts
index 619c81b..40a4b07 100644
--- a/apps/api/src/auth/types/jwt.ts
+++ b/apps/api/src/auth/types/jwt.ts
@@ -1,6 +1,6 @@
 export type TokenPayload = {
-  username: string;
   domain: string;
+  username: string;
 };
 
 export type DecodedToken = {
diff --git a/apps/api/src/auth/types/request.ts b/apps/api/src/auth/types/request.ts
deleted file mode 100644
index 538f351..0000000
--- a/apps/api/src/auth/types/request.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-export type Credentials = {
-  login: string;
-  password: string;
-};
diff --git a/apps/api/src/ldap/ldap.module.ts b/apps/api/src/ldap/ldap.module.ts
deleted file mode 100644
index 2fae433..0000000
--- a/apps/api/src/ldap/ldap.module.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { LdapService } from './ldap.service';
-import { Module } from '@nestjs/common';
-
-@Module({
-  exports: [LdapService],
-  providers: [LdapService],
-})
-// eslint-disable-next-line @typescript-eslint/no-extraneous-class
-export class LdapModule {}
diff --git a/apps/api/src/ldap/ldap.service.spec.ts b/apps/api/src/ldap/ldap.service.spec.ts
deleted file mode 100644
index d5ed721..0000000
--- a/apps/api/src/ldap/ldap.service.spec.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import { LdapService } from './ldap.service';
-import type { TestingModule } from '@nestjs/testing';
-import { Test } from '@nestjs/testing';
-
-describe('LdapService', () => {
-  let service: LdapService;
-
-  beforeEach(async () => {
-    const module: TestingModule = await Test.createTestingModule({
-      providers: [LdapService],
-    }).compile();
-
-    service = module.get<LdapService>(LdapService);
-  });
-
-  it('should be defined', () => {
-    expect(service).toBeDefined();
-  });
-});
diff --git a/apps/api/src/ldap/ldap.service.ts b/apps/api/src/ldap/ldap.service.ts
deleted file mode 100644
index 1eaab34..0000000
--- a/apps/api/src/ldap/ldap.service.ts
+++ /dev/null
@@ -1,44 +0,0 @@
-import { env } from '../config/env';
-import type { User } from '../types/user';
-import type { LdapUser } from './types/user';
-import { Injectable } from '@nestjs/common';
-import type { AuthenticationOptions } from 'ldap-authentication';
-import { authenticate } from 'ldap-authentication';
-
-@Injectable()
-export class LdapService {
-  public async authenticate(login: string, password?: string) {
-    const options: AuthenticationOptions = {
-      adminDn: env.LDAP_BIND_DN,
-      adminPassword: env.LDAP_BIND_CREDENTIALS,
-      ldapOpts: {
-        url: env.LDAP_URL,
-      },
-      userPassword: password,
-      userSearchBase: env.LDAP_BASE,
-      username: login,
-      usernameAttribute: env.LDAP_ATTRIBUTE,
-      verifyUserExists: password === undefined,
-    };
-
-    const {
-      displayName,
-      department,
-      title,
-      mail,
-      sAMAccountName: username,
-    }: LdapUser = await authenticate(options);
-
-    const user: User = {
-      department,
-      displayName,
-      domain: env.LDAP_DOMAIN,
-      domainName: `${env.LDAP_DOMAIN}\\${username}`,
-      mail,
-      position: title,
-      username,
-    };
-
-    return user;
-  }
-}
diff --git a/apps/api/src/types/user.ts b/apps/api/src/types/user.ts
deleted file mode 100644
index 8fb227d..0000000
--- a/apps/api/src/types/user.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-export type User = {
-  department: string;
-  displayName: string;
-  domain: string;
-  domainName: string;
-  mail: string;
-  position: string;
-  username: string;
-};
diff --git a/apps/api/src/users/users.cache.ts b/apps/api/src/users/users.cache.ts
index 41cc2f1..56daa7f 100644
--- a/apps/api/src/users/users.cache.ts
+++ b/apps/api/src/users/users.cache.ts
@@ -1,4 +1,3 @@
-import type { User } from '../types/user';
 import { CACHE_MANAGER } from '@nestjs/cache-manager';
 import { Inject, Injectable } from '@nestjs/common';
 import { Cache } from 'cache-manager';
@@ -6,15 +5,15 @@ import { Cache } from 'cache-manager';
 @Injectable()
 export class UsersCache {
   constructor(@Inject(CACHE_MANAGER) private readonly cacheManager: Cache) {}
-  async getUser(username: string) {
-    return (await this.cacheManager.get(username)) as User;
+  public async getUser<T extends object>(username: string) {
+    return (await this.cacheManager.get(username)) as T;
   }
 
-  async addUser(username: string, user: User) {
+  public async addUser<T extends object>(username: string, user: T) {
     await this.cacheManager.set(username, user);
   }
 
-  async deleteUser(username: string) {
+  public async deleteUser(username: string) {
     if (this.cacheManager.get(username)) {
       await this.cacheManager.del(username);
     }
diff --git a/apps/api/src/users/users.module.ts b/apps/api/src/users/users.module.ts
index f8fbcfa..4de94c7 100644
--- a/apps/api/src/users/users.module.ts
+++ b/apps/api/src/users/users.module.ts
@@ -1,4 +1,3 @@
-import { LdapModule } from '../ldap/ldap.module';
 import { UsersCache } from './users.cache';
 import { UsersController } from './users.controller';
 import { UsersService } from './users.service';
@@ -20,7 +19,6 @@ import { User, UserSchema } from 'src/schemas/user.schema';
       store: redisStore,
       ttl: env.API_CACHE_TTL,
     }),
-    LdapModule,
     MongooseModule.forFeature([{ name: User.name, schema: UserSchema }]),
   ],
   providers: [UsersService, UsersCache],
diff --git a/apps/api/src/users/users.service.ts b/apps/api/src/users/users.service.ts
index 36a79a2..f9153d0 100644
--- a/apps/api/src/users/users.service.ts
+++ b/apps/api/src/users/users.service.ts
@@ -1,5 +1,4 @@
 import type { DecodedToken } from '../auth/types/jwt';
-import { LdapService } from '../ldap/ldap.service';
 import type { CreateUserDto } from './dto/create-user.dto';
 import { UsersCache } from './users.cache';
 import { Injectable, NotFoundException, UnauthorizedException } from '@nestjs/common';
@@ -8,14 +7,14 @@ import { InjectModel } from '@nestjs/mongoose';
 import * as bcrypt from 'bcrypt';
 import { Model } from 'mongoose';
 import { User } from 'src/schemas/user.schema';
-import { generatePassword } from 'utils/password';
+import * as ldap from 'src/utils/ldap';
+import { generatePassword } from 'src/utils/password';
 
 @Injectable()
 export class UsersService {
   constructor(
     private readonly usersCache: UsersCache,
     private readonly jwtService: JwtService,
-    private readonly ldapService: LdapService,
     @InjectModel(User.name)
     private userModel: Model<User>
   ) {}
@@ -26,7 +25,7 @@ export class UsersService {
     const cachedUser = await this.usersCache.getUser(username);
 
     if (!cachedUser) {
-      const user = await this.ldapService.authenticate(username);
+      const user = await ldap.authenticate(username);
 
       await this.usersCache.addUser(username, user);
 
diff --git a/apps/api/src/ldap/types/user.ts b/apps/api/src/utils/ldap.ts
similarity index 57%
rename from apps/api/src/ldap/types/user.ts
rename to apps/api/src/utils/ldap.ts
index 76368c8..a387b92 100644
--- a/apps/api/src/ldap/types/user.ts
+++ b/apps/api/src/utils/ldap.ts
@@ -1,3 +1,17 @@
+import type { AuthenticationOptions } from 'ldap-authentication';
+import * as ldap from 'ldap-authentication';
+import { env } from 'src/config/env';
+
+export type User = {
+  department: string;
+  displayName: string;
+  domain: string;
+  domainName: string;
+  mail: string;
+  position: string;
+  username: string;
+};
+
 export type LdapUser = {
   accountExpires: string;
   badPasswordTime: string;
@@ -61,3 +75,42 @@ export type LdapUser = {
   whenChanged: string;
   whenCreated: string;
 };
+
+const BASE_OPTIONS: AuthenticationOptions = {
+  adminDn: env.LDAP_BIND_DN,
+  adminPassword: env.LDAP_BIND_CREDENTIALS,
+  ldapOpts: {
+    url: env.LDAP_URL,
+  },
+  userSearchBase: env.LDAP_BASE,
+  usernameAttribute: env.LDAP_ATTRIBUTE,
+};
+
+export async function authenticate(login: string, password?: string) {
+  const options: AuthenticationOptions = {
+    ...BASE_OPTIONS,
+    userPassword: password,
+    username: login,
+    verifyUserExists: password === undefined,
+  };
+
+  const {
+    displayName,
+    department,
+    title,
+    mail,
+    sAMAccountName: username,
+  }: LdapUser = await ldap.authenticate(options);
+
+  const user: User = {
+    department,
+    displayName,
+    domain: env.LDAP_DOMAIN,
+    domainName: `${env.LDAP_DOMAIN}\\${username}`,
+    mail,
+    position: title,
+    username,
+  };
+
+  return user;
+}
diff --git a/apps/api/utils/password.ts b/apps/api/src/utils/password.ts
similarity index 100%
rename from apps/api/utils/password.ts
rename to apps/api/src/utils/password.ts