diff --git a/backend/package.json b/backend/package.json
index e045788..0aacccf 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -20,10 +20,14 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
+    "@nestjs/axios": "^0.1.0",
     "@nestjs/common": "^9.0.0",
+    "@nestjs/config": "^2.2.0",
     "@nestjs/core": "^9.0.0",
     "@nestjs/mapped-types": "*",
     "@nestjs/platform-express": "^9.0.0",
+    "@nestjs/swagger": "^6.1.2",
+    "axios": "^0.27.2",
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
     "rxjs": "^7.2.0"
diff --git a/backend/src/app.module.ts b/backend/src/app.module.ts
index 5600721..1808341 100644
--- a/backend/src/app.module.ts
+++ b/backend/src/app.module.ts
@@ -1,9 +1,16 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
 import { AppController } from './app.controller';
 import { AuthModule } from './auth/auth.module';
 
 @Module({
-  imports: [AuthModule],
+  imports: [
+    ConfigModule.forRoot({
+      isGlobal: true,
+      expandVariables: true,
+    }),
+    AuthModule,
+  ],
   controllers: [AppController],
   providers: [],
 })
diff --git a/backend/src/auth/login/dto/kc.data.dto.ts b/backend/src/auth/login/dto/kc.data.dto.ts
new file mode 100644
index 0000000..51ad8a9
--- /dev/null
+++ b/backend/src/auth/login/dto/kc.data.dto.ts
@@ -0,0 +1,8 @@
+export class KeycloakDataDto {
+  client_id: string;
+  client_secret: string;
+  grant_type: string;
+  username?: string;
+  email?: string;
+  password: string;
+}
diff --git a/backend/src/auth/login/dto/login.dto.ts b/backend/src/auth/login/dto/login.dto.ts
index 4289575..f0b4b6c 100644
--- a/backend/src/auth/login/dto/login.dto.ts
+++ b/backend/src/auth/login/dto/login.dto.ts
@@ -1 +1,5 @@
-export class LoginDto {}
+export class LoginDto {
+  username?: string;
+  email?: string;
+  password: string;
+}
diff --git a/backend/src/auth/login/dto/token.dto.ts b/backend/src/auth/login/dto/token.dto.ts
new file mode 100644
index 0000000..e319a4b
--- /dev/null
+++ b/backend/src/auth/login/dto/token.dto.ts
@@ -0,0 +1,10 @@
+export class TokenDto {
+  access_token: string;
+  expires_in: number;
+  refresh_token: string;
+  refresh_expires_in: number;
+  token_type: string;
+  'not-before-policy': number;
+  session_state: string;
+  scope: string;
+}
diff --git a/backend/src/auth/login/login.controller.ts b/backend/src/auth/login/login.controller.ts
index 5ff6dba..42f0e73 100644
--- a/backend/src/auth/login/login.controller.ts
+++ b/backend/src/auth/login/login.controller.ts
@@ -1,4 +1,4 @@
-import { Controller, Post, Body } from '@nestjs/common';
+import { Controller, Post, Body, Get } from '@nestjs/common';
 import { LoginService } from './login.service';
 import { LoginDto } from './dto/login.dto';
 
diff --git a/backend/src/auth/login/login.module.ts b/backend/src/auth/login/login.module.ts
index 655dc6f..29484c2 100644
--- a/backend/src/auth/login/login.module.ts
+++ b/backend/src/auth/login/login.module.ts
@@ -1,9 +1,11 @@
 import { Module } from '@nestjs/common';
 import { LoginService } from './login.service';
 import { LoginController } from './login.controller';
+import { HttpModule } from '@nestjs/axios';
 
 @Module({
+  imports: [HttpModule],
   controllers: [LoginController],
-  providers: [LoginService]
+  providers: [LoginService],
 })
 export class LoginModule {}
diff --git a/backend/src/auth/login/login.service.ts b/backend/src/auth/login/login.service.ts
index 8e6401b..4d6cf6f 100644
--- a/backend/src/auth/login/login.service.ts
+++ b/backend/src/auth/login/login.service.ts
@@ -1,9 +1,40 @@
+import { HttpService } from '@nestjs/axios';
 import { Injectable } from '@nestjs/common';
+import { lastValueFrom } from 'rxjs';
 import { LoginDto } from './dto/login.dto';
+import { KeycloakDataDto } from './dto/kc.data.dto';
+const querystring = require('querystring');
 
 @Injectable()
 export class LoginService {
-  login(loginDto: LoginDto) {
-    return 'This action adds a new login';
+  constructor(private readonly httpService: HttpService) {}
+
+  async login(loginDto: LoginDto) {
+    const keycloakHeaders = {
+      Accept: 'application/xhtml+xml',
+      'content-type': 'application/x-www-form-urlencoded',
+    };
+
+    const keycloakTokenData = {
+      client_id: process.env.KC_CLIENT_ID || 'client_id',
+      client_secret: process.env.KC_CLIENT_SECRET || 'client_secret',
+      grant_type: process.env.KC_GRANT_TYPE || 'grant_type',
+    };
+
+    const kcData: KeycloakDataDto = { ...keycloakTokenData, ...loginDto };
+
+    try {
+      const res = await lastValueFrom(
+        this.httpService.request({
+          method: 'POST',
+          data: querystring.stringify(kcData),
+          headers: keycloakHeaders,
+          url: process.env.KC_TOKEN_ENDPOINT,
+        }),
+      );
+      return res.data;
+    } catch (error) {
+      return error;
+    }
   }
 }
diff --git a/backend/src/auth/register/register.module.ts b/backend/src/auth/register/register.module.ts
index ccc23e4..b44ac23 100644
--- a/backend/src/auth/register/register.module.ts
+++ b/backend/src/auth/register/register.module.ts
@@ -1,8 +1,10 @@
 import { Module } from '@nestjs/common';
 import { RegisterService } from './register.service';
 import { RegisterController } from './register.controller';
+import { HttpModule } from '@nestjs/axios';
 
 @Module({
+  imports: [HttpModule],
   controllers: [RegisterController],
   providers: [RegisterService]
 })
diff --git a/backend/src/auth/register/register.service.ts b/backend/src/auth/register/register.service.ts
index 933ac8d..88bdaa1 100644
--- a/backend/src/auth/register/register.service.ts
+++ b/backend/src/auth/register/register.service.ts
@@ -1,15 +1,22 @@
+import { HttpService } from '@nestjs/axios';
 import { Injectable } from '@nestjs/common';
+import { AxiosResponse } from 'axios';
+import { lastValueFrom, Observable, of } from 'rxjs';
 import { CreateUserDto } from './dto/create-user.dto';
 import { UpdateUserDto } from './dto/update-user.dto';
 
 @Injectable()
 export class RegisterService {
+  constructor(private readonly httpService: HttpService) {}
+
   create(createRegisterDto: CreateUserDto) {
     return 'This action adds a new register';
   }
 
-  findAll() {
-    return `This action returns all register`;
+  async findAll() {
+    // const obj = await lastValueFrom(this.httpService.get('https://jsonplaceholder.typicode.com/todos'))
+    // return obj.data;
+    return 'Find all Users';
   }
 
   findOne(id: number) {
diff --git a/backend/src/main.ts b/backend/src/main.ts
index 13cad38..20dffc6 100644
--- a/backend/src/main.ts
+++ b/backend/src/main.ts
@@ -3,6 +3,6 @@ import { AppModule } from './app.module';
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(3000);
+  await app.listen(process.env.APP_PORT || '3000');
 }
 bootstrap();
diff --git a/backend/yarn.lock b/backend/yarn.lock
index 6e8934b..09a8a48 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -623,6 +623,13 @@
     "@jridgewell/resolve-uri" "^3.0.3"
     "@jridgewell/sourcemap-codec" "^1.4.10"
 
+"@nestjs/axios@^0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@nestjs/axios/-/axios-0.1.0.tgz#6cf93df11ef93b598b3c7411adb980eedd13b3e3"
+  integrity sha512-b2TT2X6BFbnNoeteiaxCIiHaFcSbVW+S5yygYqiIq5i6H77yIU3IVuLdpQkHq8/EqOWFwMopLN8jdkUT71Am9w==
+  dependencies:
+    axios "0.27.2"
+
 "@nestjs/cli@^9.0.0":
   version "9.1.1"
   resolved "https://registry.yarnpkg.com/@nestjs/cli/-/cli-9.1.1.tgz#d84c1655a41bcbda9b42ffa6ba7344f0f471efc4"
@@ -660,6 +667,16 @@
     tslib "2.4.0"
     uuid "8.3.2"
 
+"@nestjs/config@^2.2.0":
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/@nestjs/config/-/config-2.2.0.tgz#9f3da35f7c4a58724c0a0817d6f04b66e6703430"
+  integrity sha512-78Eg6oMbCy3D/YvqeiGBTOWei1Jwi3f2pSIZcZ1QxY67kYsJzTRTkwRT8Iv30DbK0sGKc1mcloDLD5UXgZAZtg==
+  dependencies:
+    dotenv "16.0.1"
+    dotenv-expand "8.0.3"
+    lodash "4.17.21"
+    uuid "8.3.2"
+
 "@nestjs/core@^9.0.0":
   version "9.0.11"
   resolved "https://registry.yarnpkg.com/@nestjs/core/-/core-9.0.11.tgz#1bed969d81685f17d4a01f854c43a222dd3e13ce"
@@ -673,7 +690,7 @@
     tslib "2.4.0"
     uuid "8.3.2"
 
-"@nestjs/mapped-types@*":
+"@nestjs/mapped-types@*", "@nestjs/mapped-types@1.1.0":
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@nestjs/mapped-types/-/mapped-types-1.1.0.tgz#54a9fa61079635dd6c3c75fd9593f20b2302a55b"
   integrity sha512-+2kSly4P1QI+9eGt+/uGyPdEG1hVz7nbpqPHWZVYgoqz8eOHljpXPag+UCVRw9zo2XCu4sgNUIGe8Uk0+OvUQg==
@@ -700,6 +717,17 @@
     jsonc-parser "3.2.0"
     pluralize "8.0.0"
 
+"@nestjs/swagger@^6.1.2":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@nestjs/swagger/-/swagger-6.1.2.tgz#5eb9c134fc976f16c139ecaf80a7f02a5d33da46"
+  integrity sha512-RU1DeTDyuN/lRXKFWaf7I9LYF34/ale3IIGeY3romAcXL/N9W0+50Ek3ou+Ajd5FqpLqzt7saYhnaQegVuU4UQ==
+  dependencies:
+    "@nestjs/mapped-types" "1.1.0"
+    js-yaml "4.1.0"
+    lodash "4.17.21"
+    path-to-regexp "3.2.0"
+    swagger-ui-dist "4.14.0"
+
 "@nestjs/testing@^9.0.0":
   version "9.0.11"
   resolved "https://registry.yarnpkg.com/@nestjs/testing/-/testing-9.0.11.tgz#8e60107a7aaf9fc7b2bf29d473c2bdb1887de017"
@@ -1214,6 +1242,11 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argparse@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
+  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
+
 array-flatten@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
@@ -1229,6 +1262,14 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==
 
+axios@0.27.2, axios@^0.27.2:
+  version "0.27.2"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.27.2.tgz#207658cc8621606e586c85db4b41a750e756d972"
+  integrity sha512-t+yRIyySRTp/wua5xEr+z1q60QmLq8ABsS5O9Me1AsE5dfKqgnCFzwiCZZ/cGNd1lq4/7akDWMxdhVlucjmnOQ==
+  dependencies:
+    follow-redirects "^1.14.9"
+    form-data "^4.0.0"
+
 babel-jest@^28.1.3:
   version "28.1.3"
   resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-28.1.3.tgz#c1187258197c099072156a0a121c11ee1e3917d5"
@@ -1745,6 +1786,16 @@ diff@^4.0.1:
   resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.2.tgz#60f3aecb89d5fae520c11aa19efc2bb982aade7d"
   integrity sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==
 
+dotenv-expand@8.0.3:
+  version "8.0.3"
+  resolved "https://registry.yarnpkg.com/dotenv-expand/-/dotenv-expand-8.0.3.tgz#29016757455bcc748469c83a19b36aaf2b83dd6e"
+  integrity sha512-SErOMvge0ZUyWd5B0NXMQlDkN+8r+HhVUsxgOO7IoPDOdDRD2JjExpN6y3KnFR66jsJMwSn1pqIivhU5rcJiNg==
+
+dotenv@16.0.1:
+  version "16.0.1"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.0.1.tgz#8f8f9d94876c35dac989876a5d3a82a267fdce1d"
+  integrity sha512-1K6hR6wtk2FviQ4kEiSjFiH5rpzEVi8WW0x96aztHVMhEspNpc4DVOUTEHtEva5VThQ8IaBX1Pe4gSzpVVUsKQ==
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
@@ -2006,6 +2057,11 @@ find-up@^4.0.0, find-up@^4.1.0:
     locate-path "^5.0.0"
     path-exists "^4.0.0"
 
+follow-redirects@^1.14.9:
+  version "1.15.1"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.1.tgz#0ca6a452306c9b276e4d3127483e29575e207ad5"
+  integrity sha512-yLAMQs+k0b2m7cVxpS1VKJVvoz7SS9Td1zss3XRwXj+ZDH00RJgnuLx7E44wx02kQLrdM3aOOy+FpzS7+8OizA==
+
 fork-ts-checker-webpack-plugin@7.2.13:
   version "7.2.13"
   resolved "https://registry.yarnpkg.com/fork-ts-checker-webpack-plugin/-/fork-ts-checker-webpack-plugin-7.2.13.tgz#51ffd6a2f96f03ab64b92f8aedf305dbf3dee0f1"
@@ -2791,6 +2847,13 @@ js-tokens@^4.0.0:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
+js-yaml@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.0.tgz#c1fb65f8f5017901cdd2c951864ba18458a10602"
+  integrity sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==
+  dependencies:
+    argparse "^2.0.1"
+
 js-yaml@^3.13.1:
   version "3.14.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
@@ -2875,7 +2938,7 @@ lodash.memoize@4.x:
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
   integrity sha512-t7j+NzmgnQzTAYXcsHYLgimltOV1MXHtlOWf6GjL9Kj8GK5FInw5JotxvbOs+IvV1/Dzo04/fCGfLVs7aXb4Ag==
 
-lodash@^4.17.19, lodash@^4.17.21:
+lodash@4.17.21, lodash@^4.17.19, lodash@^4.17.21:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -3773,6 +3836,11 @@ supports-preserve-symlinks-flag@^1.0.0:
   resolved "https://registry.yarnpkg.com/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz#6eda4bd344a3c94aea376d4cc31bc77311039e09"
   integrity sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==
 
+swagger-ui-dist@4.14.0:
+  version "4.14.0"
+  resolved "https://registry.yarnpkg.com/swagger-ui-dist/-/swagger-ui-dist-4.14.0.tgz#e34d807464eb84578c43902e393084a1a6fbda52"
+  integrity sha512-TBzhheU15s+o54Cgk9qxuYcZMiqSm/SkvKnapoGHOF66kz0Y5aGjpzj5BT/vpBbn6rTPJ9tUYXQxuDWfsjiGMw==
+
 symbol-observable@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-4.0.0.tgz#5b425f192279e87f2f9b937ac8540d1984b39205"