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7 changes: 7 additions & 0 deletions .changeset/light-poets-eat.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
---
'@firebase/auth': minor
'@firebase/auth-compat': patch
---

Add `beforeAuthStateChanged()` middleware function which allows the user to provide callbacks that are run before an auth state change
sets a new user.
2 changes: 1 addition & 1 deletion packages/auth/src/model/public_types.ts
Original file line number Diff line number Diff line change
Expand Up @@ -259,7 +259,7 @@ export interface Auth {
* sets a new user.
*
* @param callback - callback triggered before new user value is set.
* If this throws, it will block the user from being set.
* If this throws, it blocks the user from being set.
*/
beforeAuthStateChanged(
callback: (user: User | null) => void | Promise<void>
Expand Down