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Update OAuth2-Backend-Approach.md

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Ste Vaidis 2025-01-07 12:35:34 +02:00
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OAuth2-Backend-Approach.md
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### OAuth2 purpose
A way for the `user` to tell `google` to give an access token to `xorismesiti.gr` app
A way for the `user` to tell `google` to give an access to `xorismesiti.gr` app
<br>
@ -8,9 +8,9 @@ A way for the `user` to tell `google` to give an access token to `xorismesiti.gr
| When | What | How |
|-------|--------------------------|:------------------------------------------------:|
| 1 | Get Code | Front ⇢ Google ⇢ Front |
| 2 | Exchange Code with Token | Front ⇢ Back ⇢ Google ⇢ Back ⇢ Front |
| 4 | Use Token | Front ⇢ Google ⇢ Front |
| 1 | Get Code | Front ⇢ Google ⇢ Front |
| 2 | Exchange Code with Token | Front ⇢ Back ⇢ Google ⇢ Back ⇢ Front |
| 4 | Use Token | Front ⇢ Back ⇢ Google ⇢ Back ⇢ Front |
<br>
@ -27,11 +27,15 @@ A way for the `user` to tell `google` to give an access token to `xorismesiti.gr
1. Frontend **POST** the authorization `code` to the Backend
2. Backend **POST** the authorization `code` to Google
3. Google **response** to Backend with an `access_token` and a `refresh token`
4. Backend **response** to Frontend with an `access_token`
4. Backend **response** to Frontend with the `access_token` in a **cookie**
3. Use Token
1. Frontend **Use** `access_token` to get user data from Google
1. Frontend **GET** profile data from Backend using the **cookie**
2. Backend **GET** profile data from Google using the `access_token` from Frontend **cookie**
3. Google **response** to Backend with profile data
4. Backend **response** to Frontend with profile data
5. Frontend render profile data
<br><br>