Proof

@react-native-firebase/functions

published RNFB 27 JS runs unchanged over NativeRNFBTurboFunctions using firebase/functions for one-shot calls and Apple native streaming transport with the shared native Auth adapter; callable SSE messages and final completion are verified before HTTP EOF

80%

API coverage

No visual proof cases have been published for this package yet. The registry summary below describes what the compat layer implements.

Working (8)

callables by name and URLemulator/custom-domain routingnative Auth tokens and sign-outremote code/message/detailstimeoutincremental streaming messagesterminal resultsduplicate listener rejection and suppression after native removal

Missing (4)

App Check and FCM token interopone-shot Apple UNKNOWN network-error parityunderlying OS network diagnosticsAndroid-specific parity and production callable certification; see docs/firebase-functions-native-seam.md