OAuth

You might say

How do I add a sign in with WeChat button to the page?

An industry-standard protocol letting users authorize sign-in with an existing account (WeChat, Google) instead of registering a new passwordWhen a user clicks 'Sign in with Google', the browser redirects to Google's consent screen and returns with an authorization token. OAuth lets websites verify identities without ever handling third-party passwords; developers configure redirect callback URLs, while the app maintains internal records matching foreign accounts.

Know first

Authentication

OAuth

Self-registration and third-party authorization: two sign-in paths

Self-registration and third-party authorization: two sign-in pathsEnter email and password

userremembers a new password

sitestores the account

costone more password per site

EvidenceCredentials live on this site

Self-registration: users remember a password for every site.

What an OAuth sign-in goes through

Jump to the third party to confirm: Clicking sign in with WeChat jumps to WeChat's authorization page; the user approves on a platform they know.

Return with the result: After approval you return to the site with an authorization result; the whole flow never touches the user's WeChat password.

The site still identifies the user: The site uses its own user records to recognize who this is; OAuth handles the authorization confirmation, not the account system.

Quick checkChoose the best answer

The product requires sign in with WeChat while keeping email registration. Which statement is correct?

Once OAuth is added, no account system is needed at allThe user tells the site their WeChat password to sign inBoth can coexist; OAuth requires configuring a callback address, while email registration manages its own accounts

You can say this to an AI Agent

Add a sign in with WeChat button to the login page and configure authorization and the callback address. On callback, create or match the corresponding user on this site; keep email registration unchanged. Afterward, actually run the authorization flow once to confirm sign-in works, and explain what users see on failure.

Learn next

1Authentication→2API Key→

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