JavaScript: Sign in a user

• A user can sign up either via email or OAuth.
• If you provide email without a password, the user will be sent a magic link.
• The magic link's destination URL is determined by the SITE_URL config variable. To change this, you can go to Authentication -> Settings on supabase.com/dashboard
• Specifying a provider will open the browser to the relevant login page.

Examples

Sign in with email and password

const { user, session, error } = await supabase.auth.signIn({
  email: 'example@email.com',
  password: 'example-password',
})

Sign in with magic link.

const { user, session, error } = await supabase.auth.signIn({
  email: 'example@email.com'
})

Sign in using third-party providers.

const { user, session, error } = await supabase.auth.signIn({
  // provider can be 'github', 'google', 'gitlab', and more
  provider: 'github'
})

Sign in with phone and password

const { user, session, error } = await supabase.auth.signIn({
  phone: '+13334445555',
  password: 'some-password',
})

Sign in using a third-party provider with redirect

const { user, session, error } = await supabase.auth.signIn({
  provider: 'github'
}, {
  redirectTo: 'https://example.com/welcome'
})

Sign in with scopes

const { user, session, error } = await supabase.auth.signIn({
  provider: 'github'
}, {
  scopes: 'repo gist notifications'
})
const oAuthToken = session.provider_token // use to access provider API

Sign in using a refresh token (e.g. in React Native).

// An example using Expo's `AuthSession`
const redirectUri = AuthSession.makeRedirectUri({ useProxy: false });
const provider = 'google';

AuthSession.startAsync({
  authUrl: `https://MYSUPABASEAPP.supabase.co/auth/v1/authorize?provider=${provider}&redirect_to=${redirectUri}`,
  returnUrl: redirectUri,
}).then(async (response: any) => {
  if (!response) return;
  const { user, session, error } = await supabase.auth.signIn({
    refreshToken: response.params?.refresh_token,
  });
});