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[AppCheck] Remove reCAPTCHA site key support #8457

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rlazo wants to merge 5 commits into
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rl.appcheck.sitekey
Open

[AppCheck] Remove reCAPTCHA site key support #8457
rlazo wants to merge 5 commits into
mainfrom
rl.appcheck.sitekey

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@rlazo

@rlazo rlazo commented Jul 21, 2026

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Removed getRecaptchaSiteKey from FirebaseOptions and deprecated RecaptchaAppCheckProviderFactory.getInstance() methods. Site keys must now be provided explicitly via
RecaptchaAppCheckProviderFactory.getInstance(String).

While the API existed, the support from the backend didn't. Because of it we are marking the change as non-breaking.

rlazo added 3 commits July 20, 2026 12:25
Introduced `RecaptchaAppCheckProviderFactory.getInstance(String)` to
allow passing the reCAPTCHA site key directly. Deprecated the site key
methods in FirebaseOptions in favor of this new approach and updated
the factory to support singleton provider initialization when using an
explicit site key.

Internal b/535703681
Removed `getRecaptchaSiteKey` from `FirebaseOptions` and deprecated
`RecaptchaAppCheckProviderFactory.getInstance()` methods. Site keys
must now be provided explicitly via
`RecaptchaAppCheckProviderFactory.getInstance(String)`.
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📝 PRs merging into main branch

Our main branch should always be in a releasable state. If you are working on a larger change, or if you don't want this change to see the light of the day just yet, consider using a feature branch first, and only merge into the main branch when the code complete and ready to be released.

@rlazo

rlazo commented Jul 21, 2026

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/gemini review

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Code Review

This pull request deprecates the reCAPTCHA site key configuration in FirebaseOptions and moves it directly to RecaptchaAppCheckProviderFactory.getInstance(String). The feedback suggests removing the stateful caching of the provider and double-checked locking in RecaptchaAppCheckProviderFactory to avoid issues in multi-app environments. Additionally, it recommends updating the corresponding tests to verify delegation on every call and removing obsolete @SuppressWarnings("deprecation") annotations in FirebaseOptionsTest.

Comment thread firebase-common/src/androidTest/java/com/google/firebase/FirebaseOptionsTest.java Outdated
Comment thread firebase-common/src/androidTest/java/com/google/firebase/FirebaseOptionsTest.java Outdated
@rlazo

rlazo commented Jul 21, 2026

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As mentioned in the description, it's expected that metalava will complain, but it's OK to ignore and not mark it as a major version bump.

@rlazo
rlazo enabled auto-merge (squash) July 21, 2026 17:38
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