added_jv_description_of_classes_and_structure

Author: phgachoud

sheets/Readme.md

@@ -1,8 +1,14 @@
-Eiffel API for Google Sheets API
+# Eiffel API for Google Sheets API
 
 https://developers.google.com/sheets/api/reference/rest
 
 
 OAuth2.0 Client credentials
 To begin, obtain OAuth 2.0 client credentials from the [Browser Quickstart](https://developers.google.com/sheets/api/quickstart/js) and enable the credentials.
 
+
+  - EG_SHEETS_I -- it's an interface where we work with Eiffel Objects
+  - EG_SHEETS_API -- It's the low level interface that sends and receives HTTP messages..
+  - EG_SHEETS_JSON -- it's the implementation where we map from the HTTP messages encoded in JSON format to the Eiffel side. (and vice versa).
+
+Then in the object cluster we have the Eiffel objects representing the API domain.

sheets/test/application_flow.e

@@ -180,7 +180,7 @@ feature -- Token
 
 feature {NONE} -- Implementation
 
-	api_key: STRING = "546059329455-7avhe84em3rfb6el439ld1cgr5c6dmqt.apps.googleusercontent.com" --"Du9tZw02U4r2vmxf6XmrYLrn"
+	api_key: STRING = "546059329455-7avhe84em3rfb6el439ld1cgr5c6dmqt.apps.googleusercontent.com"
 	api_secret: STRING = "i45lTLSjalghy5rcbk7us1x6"
 	empty_token: detachable OAUTH_TOKEN
 end