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Force account chooser on social sign-in (prompt=select_account) #19

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Merged
oliverhuangcode merged 1 commit into from
Jul 17, 2026
+8 −0
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Force account chooser on social sign-in (prompt=select_account) #19

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8 changes: 8 additions & 0 deletions auth/src/auth.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -98,15 +98,23 @@ export const auth = betterAuth({
},

socialProviders: {
// `prompt: "select_account"` forces the provider's account chooser during the
// OAuth handshake so people with several signed-in accounts (e.g. a personal
// Gmail alongside their student one) consciously pick the right one, rather
// than the provider silently auto-selecting the wrong account. This only
// affects the OAuth step itself — it does NOT run when an existing MAC session
// is reused, so signed-in users are not re-prompted or logged out.
google: {
clientId: process.env.GOOGLE_CLIENT_ID as string,
clientSecret: process.env.GOOGLE_CLIENT_SECRET as string,
prompt: "select_account",
},
microsoft: {
clientId: process.env.MICROSOFT_CLIENT_ID as string,
clientSecret: process.env.MICROSOFT_CLIENT_SECRET as string,
// "common" so personal Microsoft accounts (Hotmail/Outlook/Live) work too.
tenantId: "common",
prompt: "select_account",
},
},

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