From 982afdc75d4ba2699b7d1cbafb9e9c0a6e0bb62c Mon Sep 17 00:00:00 2001
From: Osama Salman <osama.salman99@gmail.com>
Date: Tue, 28 Nov 2023 13:05:18 +0300
Subject: [PATCH] feat(authentication): Support identity auth v3 (#138)

---
 core/src/authentication/Authenticator.ts        | 6 +++++-
 core/src/constant/Authentication.ts             | 4 +++-
 core/src/constant/Constant.ts                   | 2 +-
 core/test/authentication/Authentication.test.ts | 5 +++++
 4 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/core/src/authentication/Authenticator.ts b/core/src/authentication/Authenticator.ts
index 9b18ebf6..43538fe1 100644
--- a/core/src/authentication/Authenticator.ts
+++ b/core/src/authentication/Authenticator.ts
@@ -84,7 +84,11 @@ class Authenticator {
         method: Constant.POST,
         url: configurations.authEndpoint,
         headers: {
-          'User-Agent': configurations.userAgent
+          'User-Agent': configurations.userAgent,
+          'Content-Type': Authentication.APPLICATION_FORM_URL_ENCODED
+        },
+        params: {
+          grant_type: Authentication.CLIENT_CREDENTIALS
         },
         auth: {
           username: configurations.key,
diff --git a/core/src/constant/Authentication.ts b/core/src/constant/Authentication.ts
index 797ac706..e4c2e20c 100644
--- a/core/src/constant/Authentication.ts
+++ b/core/src/constant/Authentication.ts
@@ -25,5 +25,7 @@ export const Authentication = {
   BEARER: 'Bearer',
   AUTHORIZATION: 'Authorization',
   USERNAME: 'username',
-  PASSWORD: 'password'
+  PASSWORD: 'password',
+  CLIENT_CREDENTIALS: 'client_credentials',
+  APPLICATION_FORM_URL_ENCODED: 'application/x-www-form-urlencoded'
 } as const
diff --git a/core/src/constant/Constant.ts b/core/src/constant/Constant.ts
index 9158b4a1..b70aada1 100644
--- a/core/src/constant/Constant.ts
+++ b/core/src/constant/Constant.ts
@@ -20,7 +20,7 @@
 
 export const Constant = {
   ENDPOINT: 'https://api.expediagroup.com/',
-  AUTH_ENDPOINT: 'https://api.expediagroup.com/identity/oauth2/v2/token/',
+  AUTH_ENDPOINT: 'https://api.expediagroup.com/identity/oauth2/v3/token/',
   TEN_SECONDS_IN_MILLIS: 10_000,
   POST: 'POST',
   AUTHORIZATION: 'Authorization'
diff --git a/core/test/authentication/Authentication.test.ts b/core/test/authentication/Authentication.test.ts
index a7d3acc9..51f0d0e5 100644
--- a/core/test/authentication/Authentication.test.ts
+++ b/core/test/authentication/Authentication.test.ts
@@ -3,6 +3,7 @@ import { Constant } from '../constant/Constant'
 import { TestClient } from '../helper/TestClient'
 import { StatusCode } from '../constant/StatusCode'
 import { ExpediaGroupAuthError } from '../../src/model/error/service/ExpediaGroupAuthError'
+import { Authentication } from '../../src/constant/Authentication'
 
 describe('Authentication', function () {
   it('should send an authentication request when token is expired', async function () {
@@ -18,6 +19,10 @@ describe('Authentication', function () {
     expect(response.status).toEqual(StatusCode.OK)
     expect(response.data).toEqual(Constant.DATA)
 
+    expect(client.mockAdapter.history.post.length).toEqual(1)
+    expect(client.mockAdapter.history.post[0].headers?.['Content-Type']).toEqual(Authentication.APPLICATION_FORM_URL_ENCODED)
+    expect(client.mockAdapter.history.post[0].params?.grant_type).toEqual(Authentication.CLIENT_CREDENTIALS)
+
     expect(client.mockAdapter.history.get.length).toEqual(1)
     expect(client.mockAdapter.history.get[0].headers?.Authorization).toEqual('Bearer token')