[Home](./index.md) > [@firebase/auth](./auth.md) > [TwitterAuthProvider](./auth.twitterauthprovider.md) > [PROVIDER\_ID](./auth.twitterauthprovider.provider_id.md) ## TwitterAuthProvider.PROVIDER\_ID property Always set to [ProviderId.TWITTER](./auth.providerid.twitter.md). Signature: ```typescript static readonly PROVIDER_ID = ProviderId.TWITTER; ```