update Books via mtxs-review app

test/entra-id-sap-ias-token-exchange.http

@@ -41,15 +41,57 @@ GET {{$dotenv graph_uri}}/api/{{$dotenv graph_name}}/my.a4h.user/UserDetailsSet
 Authorization: Bearer {{access_token_btp}}
 ### Call OData Service of Multitenant Application 
 ### https://github.com/gregorwolf/mtxs-bookshop
-GET {{$dotenv btp_mtx_srv}}/odata/v4/catalog/Books
-  ?$filter=IsActiveEntity eq false or IsActiveEntity eq true
+### Read Active
+GET {{$dotenv btp_mtxs_bookshop_srv}}/odata/v4/catalog/Books
+Authorization: Bearer {{access_token_btp}}
+### Read Drafts
+GET {{$dotenv btp_mtxs_bookshop_srv}}/odata/v4/catalog/Books
+  ?$filter=IsActiveEntity eq false
 Authorization: Bearer {{access_token_btp}}
 ###
-POST {{$dotenv btp_mtx_srv}}/odata/v4/catalog/Books
+POST {{$dotenv btp_mtxs_bookshop_srv}}/odata/v4/catalog/Books
 Authorization: Bearer {{access_token_btp}}
 Content-Type: application/json
 
 {
   "title": "Per Anhalter durch die Galaxis",
   "stock": 500
 }
+### Call OData Service of Multitenant Application 
+### https://github.com/gregorwolf/mtxs-reviews
+GET {{$dotenv btp_mtxs_reviews_srv}}/odata/v4/review
+Authorization: Bearer {{access_token_btp}}
+###
+# @name getBooks
+GET {{$dotenv btp_mtxs_reviews_srv}}/odata/v4/review/Books
+Authorization: Bearer {{access_token_btp}}
+###
+@bookId={{getBooks.response.body.$.value[0].ID}}
+###
+PATCH {{$dotenv btp_mtxs_reviews_srv}}/odata/v4/review/Books({{bookId}})
+Authorization: Bearer {{access_token_btp}}
+Content-Type: application/json
+
+{
+  "stock": 500
+}
+
+### Get Access Token for Destination Service
+# @name requestDestinationAccessToken
+POST {{$dotenv dest_tokenendpoint}}/oauth/token
+Authorization: Basic {{$dotenv dest_clientid}}:{{$dotenv dest_clientsecret}}
+Content-Type: application/x-www-form-urlencoded
+
+grant_type=client_credentials
+&response_type=token
+
+### Fill Variables from Response
+@destination_access_token = {{requestDestinationAccessToken.response.body.$.access_token}}
+
+### Get Access token from Destination Service using the OAuth2SAMLBearerAssertion Destination
+# According to https://api.sap.com/api/SAP_CP_CF_Connectivity_Destination/path/get_destinations__name_
+### Read details of one destination
+# @name requestProviderDestination
+GET {{$dotenv dest_uri}}/destination-configuration/v1/destinations/mtxs-bookshop
+X-user-token: {{access_token_btp}}
+Authorization: Bearer {{destination_access_token}}