OAuth, OAuth server vs. OAuth client - #3115
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Appwrite WebsiteProject ID: Website (appwrite/website)Project ID: Tip Each function runs in its own isolated container with custom environment variables |
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Greptile SummaryThis PR adds two unlisted OAuth blog posts and their assets.
Confidence Score: 5/5This looks safe to merge.
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adityaoberai
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Jul 27, 2026
| - question: What does an OAuth server do? | ||
| answer: An OAuth server verifies the user’s identity, displays the consent screen, processes authorization requests, and issues access and refresh tokens. It may also validate, revoke, and rotate tokens. | ||
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| "OAuth server" and "OAuth client" get used interchangeably in a lot of tutorials, and that is where the confusion starts. They are not two names for the same thing. They are two different roles on opposite ends of the same authorization flow, and mixing them up leads to real bugs: tokens stored in the wrong place, secrets leaked to the browser, or a login flow that never completes. |
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Not sure if this is a good fundamental reason for this blog to matter
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| ## Public clients | ||
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| A **public client** cannot keep a secret. Single-page apps, mobile apps, and desktop apps fall into this category, because any secret shipped in their code can be extracted. Public clients rely on the [PKCE extension](https://oauth.net/2/pkce/) (Proof Key for Code Exchange) instead of a client secret to protect the token exchange. |
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PKCE is not mandatory unless OAuth 2.1 is followed
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| Here is what an OAuth2 login looks like with the Appwrite web SDK: | ||
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| ```client-web | ||
| import { Client, Account, OAuthProvider } from "appwrite"; | ||
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| const client = new Client() | ||
| .setEndpoint('https://<REGION>.cloud.appwrite.io/v1') | ||
| .setProject('<PROJECT_ID>'); | ||
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| const account = new Account(client); | ||
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| account.createOAuth2Session({ | ||
| provider: OAuthProvider.Google, | ||
| success: 'https://example.com/success', | ||
| failure: 'https://example.com/failed' | ||
| }); |
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We should link both the createOAuth2Session and createOAuth2Token flows
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Is this intentionally off-centre?
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