49 lines
1.7 KiB
Markdown
49 lines
1.7 KiB
Markdown
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# 1. Authorization Request (User Initiates Login)
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A user clicks on the **Login with Google** button on the the app `xorismesiti.gr`.
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The app request permission to access certain Google APIs (like the user's email, profile, etc.).
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```sh
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GET https://accounts.google.com/o/oauth2/v2/auth?
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response_type=code&
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client_id=YOUR_GOOGLE_CLIENT_ID&
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redirect_uri=https://xorismesiti.gr/callback&
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scope=email%20profile&
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state=xyz123
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```
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- `response_type=code`: This indicates you're using the "authorization code" flow.
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- `client_id`: Your Google API client ID.
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- `redirect_uri`: The URI Google will redirect to after the user consents.
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- `scope`: The permissions you're requesting (e.g., email, profile).
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- `state`: A random string to protect against CSRF attacks.
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# 2. User Login and Consent
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- The user is redirected to Google's login page.
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- If they're not already logged in, they will be prompted to enter their Google credentials.
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- After successful login, the user will be shown a consent screen where they can grant or deny permission for your app to access their Google account (e.g., email and profile information).
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**User Action**: The user clicks "Allow" to grant access.
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# 3. Authorization Code Response (Google Redirects to Your Platform)
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Google redirects the user back to your platform's redirect_uri `https://xorismesiti.gr/callback` with an authorization_code in the query parameters.
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```sh
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GET https://xorismesiti.gr/callback?
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code=4/0AX4XfWgNmGZVbV7Kdr8Q9yVyzIYBnbbBdLfX39ZaE8m0w8zT8jKRLl7w-uT8k7WiyLg0Q&
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state=xyz123
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```
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- `URL`: https://xorismesiti.gr/callback
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- `HTTP` Method: GET
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- `Parameters`:
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- `code`: The authorization code sent by Google.
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- `state`: The same state value sent in the original request (for CSRF protection).
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