'How to link Email/Password sign-in method using Firebase admin SDK?

I'm trying to use firebase admin SDK in order to link the Email/Password sign-in method.

Based on firebase documentation we can links user to a specific provider https://firebase.google.com/docs/reference/admin/node/firebase-admin.auth.updaterequest.md#updaterequestprovidertolink

based on that I'm using :

await admin
           .auth()
           .updateUser(user.uid, {
                providerToLink: {
                    uid: user.email,
                    email: user.email,
                    displayName: user.displayName,
                    providerId: 'password',
                },
            })
            .catch((error: any) => {
                console.error(`${error}`);
            });

It should link the Email/Password sign-in method to a specific user, but instead of that it's returning error with

  • code = auth/invalid-provider-id
  • message = The providerId must be a valid supported provider identifier string.

It's working as expected when the providerId equal to facebook.com or google.com

Question

Is there is another providerId I should use in order to link the Email/Password sign-in method ?

Is there another approach I should use in order to link the Email/Password sign-in method ?

Node version : 12

firebase-admin : 9.12.0

node.jsfirebasefirebase-authenticationfirebase-admin


Solution 1:[1]

You need to set providerId as 'email' and also provide password.

  await admin.auth().updateUser(user.uid, {
    password: "password",
    providerToLink: {
      email: "[email protected]",
      uid: "[email protected]",
      providerId: 'email',
    },
  })

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Turara

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