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Importar usuários

O SDK Admin do Firebase oferece a API Auth.importUsers() para importar usuários em massa para Firebase Authentication com privilégios elevados. Embora esse recurso também esteja disponível na CLI do Firebase, o SDK Admin permite que você faça upload de usuários atuais usando um sistema de autenticação externo ou outro projeto do Firebase. Tudo isso de maneira programática e sem ter que criar arquivos intermediários CSV ou JSON.

A API de importação de usuários oferece as seguintes vantagens:

Capacidade de migrar usuários de um sistema de autenticação externo usando um algoritmo diferente de hash de senha.
Capacidade de migrar usuários de outro projeto do Firebase.
Otimização para operações de importação em massa rápidas e eficientes. Essa operação processa os usuários sem verificar a existência de uid, email, phoneNumber ou outro identificador duplicado.
Capacidade de migrar usuários atuais ou criar novos usuários de OAuth (Google, Facebook etc.).
Possibilidade de importar em massa usuários com declarações personalizadas.

Uso

Até mil usuários podem ser importados em uma única chamada de API. Observe que a operação é otimizada para maior rapidez e não verifica a existência de uid, email, phoneNumber ou outro identificador exclusivo duplicado. Importar um usuário que entra em conflito com um uid atual substituirá esse usuário. Importar um usuário com qualquer outro campo duplicado (por exemplo, email) resultará em um usuário adicional com o mesmo valor. Consequentemente, ao usar essa API, você precisa garantir que nenhum campo exclusivo seja duplicado.

Node.js

// Up to 1000 users can be imported at once.
const userImportRecords = [
  {
    uid: 'uid1',
    email: 'user1@example.com',
    passwordHash: Buffer.from('passwordHash1'),
    passwordSalt: Buffer.from('salt1'),
  },
  {
    uid: 'uid2',
    email: 'user2@example.com',
    passwordHash: Buffer.from('passwordHash2'),
    passwordSalt: Buffer.from('salt2'),
  },
  //...
];

Java

// Up to 1000 users can be imported at once.
List<ImportUserRecord> users = new ArrayList<>();
users.add(ImportUserRecord.builder()
    .setUid("uid1")
    .setEmail("user1@example.com")
    .setPasswordHash("passwordHash1".getBytes())
    .setPasswordSalt("salt1".getBytes())
    .build());
users.add(ImportUserRecord.builder()
    .setUid("uid2")
    .setEmail("user2@example.com")
    .setPasswordHash("passwordHash2".getBytes())
    .setPasswordSalt("salt2".getBytes())
    .build());

Python

# Up to 1000 users can be imported at once.
users = [
    auth.ImportUserRecord(
        uid='uid1',
        email='user1@example.com',
        password_hash=b'password_hash_1',
        password_salt=b'salt1'
    ),
    auth.ImportUserRecord(
        uid='uid2',
        email='user2@example.com',
        password_hash=b'password_hash_2',
        password_salt=b'salt2'
    ),
]

Go

// Up to 1000 users can be imported at once.
var users []*auth.UserToImport
users = append(users, (&auth.UserToImport{}).
	UID("uid1").
	Email("user1@example.com").
	PasswordHash([]byte("passwordHash1")).
	PasswordSalt([]byte("salt1")))
users = append(users, (&auth.UserToImport{}).
	UID("uid2").
	Email("user2@example.com").
	PasswordHash([]byte("passwordHash2")).
	PasswordSalt([]byte("salt2")))

C#

//  Up to 1000 users can be imported at once.
var users = new List<ImportUserRecordArgs>()
{
    new ImportUserRecordArgs()
    {
        Uid = "uid1",
        Email = "user1@example.com",
        PasswordHash = Encoding.ASCII.GetBytes("passwordHash1"),
        PasswordSalt = Encoding.ASCII.GetBytes("salt1"),
    },
    new ImportUserRecordArgs()
    {
        Uid = "uid2",
        Email = "user2@example.com",
        PasswordHash = Encoding.ASCII.GetBytes("passwordHash2"),
        PasswordSalt = Encoding.ASCII.GetBytes("salt2"),
    },
};

Neste exemplo, as opções de hash são especificadas para ajudar o Firebase a autenticar esses usuários com segurança na próxima tentativa de login com o Firebase Authentication. Após o login, o Firebase gera um novo hash da senha do usuário com o algoritmo interno de hash do Firebase. Saiba mais sobre os campos obrigatórios para cada algoritmo abaixo.

O Firebase Authentication tenta fazer upload de toda a lista de usuários fornecidos, mesmo quando ocorre um erro específico do usuário. A operação retorna um resultado com o resumo das importações bem-sucedidas e com falha. Os detalhes do erro são retornados a cada importação de usuário com falha.

Node.js

getAuth()
  .importUsers(userImportRecords, {
    hash: {
      algorithm: 'HMAC_SHA256',
      key: Buffer.from('secretKey'),
    },
  })
  .then((userImportResult) => {
    // The number of successful imports is determined via: userImportResult.successCount.
    // The number of failed imports is determined via: userImportResult.failureCount.
    // To get the error details.
    userImportResult.errors.forEach((indexedError) => {
      // The corresponding user that failed to upload.
      console.log(
        'Error ' + indexedError.index,
        ' failed to import: ',
        indexedError.error
      );
    });
  })
  .catch((error) => {
    // Some unrecoverable error occurred that prevented the operation from running.
  });

Java

UserImportOptions options = UserImportOptions.withHash(
    HmacSha256.builder()
        .setKey("secretKey".getBytes())
        .build());
try {
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  System.out.println("Successfully imported " + result.getSuccessCount() + " users");
  System.out.println("Failed to import " + result.getFailureCount() + " users");
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user at index: " + indexedError.getIndex()
        + " due to error: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  // Some unrecoverable error occurred that prevented the operation from running.
}

Python

hash_alg = auth.UserImportHash.hmac_sha256(key=b'secret_key')
try:
    result = auth.import_users(users, hash_alg=hash_alg)
    print('Successfully imported {0} users. Failed to import {1} users.'.format(
        result.success_count, result.failure_count))
    for err in result.errors:
        print('Failed to import {0} due to {1}'.format(users[err.index].uid, err.reason))
except exceptions.FirebaseError:
    # Some unrecoverable error occurred that prevented the operation from running.
    pass

Go

client, err := app.Auth(ctx)
if err != nil {
	log.Fatalln("Error initializing Auth client", err)
}

h := hash.HMACSHA256{
	Key: []byte("secretKey"),
}
result, err := client.ImportUsers(ctx, users, auth.WithHash(h))
if err != nil {
	log.Fatalln("Unrecoverable error prevented the operation from running", err)
}

log.Printf("Successfully imported %d users\n", result.SuccessCount)
log.Printf("Failed to import %d users\n", result.FailureCount)
for _, e := range result.Errors {
	log.Printf("Failed to import user at index: %d due to error: %s\n", e.Index, e.Reason)
}

C#

var options = new UserImportOptions()
{
    Hash = new HmacSha256()
    {
        Key = Encoding.ASCII.GetBytes("secretKey"),
    },
};

try
{
    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users, options);
    Console.WriteLine($"Successfully imported {result.SuccessCount} users");
    Console.WriteLine($"Failed to import {result.FailureCount} users");
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user at index: {indexedError.Index}"
            + $" due to error: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException)
{
    // Some unrecoverable error occurred that prevented the operation from running.
}

Se não for necessário um hash de senha (número de telefone, usuário de token personalizado, usuário de OAuth etc.), não ofereça opções de hash.

Importar usuários que têm senhas de hash scrypt do Firebase

Por padrão, o Firebase usa uma versão modificada do Firebase do algoritmo de hash scrypt para armazenar senhas. Importar senhas com hash usando scrypt modificado é útil para migrar usuários de outro projeto atual do Firebase. Para isso, é preciso determinar parâmetros internos para o projeto original.

O Firebase gera parâmetros exclusivos de hash de senha para cada projeto. Para acessá-los, navegue até a guia Usuários no Console Firebase e selecione Parâmetros de hash de senha no menu suspenso localizado no canto superior direito da lista de usuários.

Veja abaixo alguns dos parâmetros necessários para criar as opções de hash deste algoritmo:

key: a chave do signatário normalmente fornecida na codificação Base64.
saltSeparator: o separador de sal normalmente fornecido na codificação Base64 (opcional).
rounds: o número de rodadas usadas para gerar o hash das senhas.
memoryCost: o custo de memória necessário para o algoritmo.

Node.js

getAuth()
  .importUsers(
    [
      {
        uid: 'some-uid',
        email: 'user@example.com',
        // Must be provided in a byte buffer.
        passwordHash: Buffer.from('base64-password-hash', 'base64'),
        // Must be provided in a byte buffer.
        passwordSalt: Buffer.from('base64-salt', 'base64'),
      },
    ],
    {
      hash: {
        algorithm: 'SCRYPT',
        // All the parameters below can be obtained from the Firebase Console's users section.
        // Must be provided in a byte buffer.
        key: Buffer.from('base64-secret', 'base64'),
        saltSeparator: Buffer.from('base64SaltSeparator', 'base64'),
        rounds: 8,
        memoryCost: 14,
      },
    }
  )
  .then((results) => {
    results.errors.forEach((indexedError) => {
      console.log(`Error importing user ${indexedError.index}`);
    });
  })
  .catch((error) => {
    console.log('Error importing users :', error);
  });

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setEmail("user@example.com")
      .setPasswordHash(BaseEncoding.base64().decode("password-hash"))
      .setPasswordSalt(BaseEncoding.base64().decode("salt"))
      .build());
  UserImportOptions options = UserImportOptions.withHash(
      Scrypt.builder()
          // All the parameters below can be obtained from the Firebase Console's "Users"
          // section. Base64 encoded parameters must be decoded into raw bytes.
          .setKey(BaseEncoding.base64().decode("base64-secret"))
          .setSaltSeparator(BaseEncoding.base64().decode("base64-salt-separator"))
          .setRounds(8)
          .setMemoryCost(14)
          .build());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Python

users = [
    auth.ImportUserRecord(
        uid='some-uid',
        email='user@example.com',
        password_hash=base64.urlsafe_b64decode('password_hash'),
        password_salt=base64.urlsafe_b64decode('salt')
    ),
]

# All the parameters below can be obtained from the Firebase Console's "Users"
# section. Base64 encoded parameters must be decoded into raw bytes.
hash_alg = auth.UserImportHash.scrypt(
    key=base64.b64decode('base64_secret'),
    salt_separator=base64.b64decode('base64_salt_separator'),
    rounds=8,
    memory_cost=14
)
try:
    result = auth.import_users(users, hash_alg=hash_alg)
    for err in result.errors:
        print('Failed to import user:', err.reason)
except exceptions.FirebaseError as error:
    print('Error importing users:', error)

Go

b64URLdecode := func(s string) []byte {
	b, err := base64.URLEncoding.DecodeString(s)
	if err != nil {
		log.Fatalln("Failed to decode string", err)
	}

	return b
}
b64Stddecode := func(s string) []byte {
	b, err := base64.StdEncoding.DecodeString(s)
	if err != nil {
		log.Fatalln("Failed to decode string", err)
	}
	return b
}
// Users retrieved from Firebase Auth's backend need to be base64URL decoded
users := []*auth.UserToImport{
	(&auth.UserToImport{}).
		UID("some-uid").
		Email("user@example.com").
		PasswordHash(b64URLdecode("password-hash")).
		PasswordSalt(b64URLdecode("salt")),
}

// All the parameters below can be obtained from the Firebase Console's "Users"
// section. Base64 encoded parameters must be decoded into raw bytes.
h := hash.Scrypt{
	Key:           b64Stddecode("base64-secret"),
	SaltSeparator: b64Stddecode("base64-salt-separator"),
	Rounds:        8,
	MemoryCost:    14,
}
result, err := client.ImportUsers(ctx, users, auth.WithHash(h))
if err != nil {
	log.Fatalln("Error importing users", err)
}
for _, e := range result.Errors {
	log.Println("Failed to import user", e.Reason)
}

C#

try
{
    var users = new List<ImportUserRecordArgs>()
    {
        new ImportUserRecordArgs()
        {
            Uid = "some-uid",
            Email = "user@example.com",
            PasswordHash = Encoding.ASCII.GetBytes("password-hash"),
            PasswordSalt = Encoding.ASCII.GetBytes("salt"),
        },
    };

    var options = new UserImportOptions()
    {
        // All the parameters below can be obtained from the Firebase Console's "Users"
        // section. Base64 encoded parameters must be decoded into raw bytes.
        Hash = new Scrypt()
        {
            Key = Encoding.ASCII.GetBytes("base64-secret"),
            SaltSeparator = Encoding.ASCII.GetBytes("base64-salt-separator"),
            Rounds = 8,
            MemoryCost = 14,
        },
    };

    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users, options);
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException e)
{
    Console.WriteLine($"Error importing users: {e.Message}");
}

Importar usuários que têm senhas de hash scrypt padrão

Firebase Authentication oferece suporte ao algoritmo scrypt padrão, bem como modificada (acima). Para o algoritmo scrypt padrão, são necessários os seguintes parâmetros de hash:

memoryCost: o custo de CPU/memória do algoritmo de hash.
parallelization: o carregamento em paralelo do algoritmo de hash.
blockSize: o tamanho do bloco (normalmente oito) do algoritmo de hash.
derivedKeyLength: o comprimento da chave derivada do algoritmo de hash.

Node.js

getAuth()
  .importUsers(
    [
      {
        uid: 'some-uid',
        email: 'user@example.com',
        // Must be provided in a byte buffer.
        passwordHash: Buffer.from('password-hash'),
        // Must be provided in a byte buffer.
        passwordSalt: Buffer.from('salt'),
      },
    ],
    {
      hash: {
        algorithm: 'STANDARD_SCRYPT',
        memoryCost: 1024,
        parallelization: 16,
        blockSize: 8,
        derivedKeyLength: 64,
      },
    }
  )
  .then((results) => {
    results.errors.forEach((indexedError) => {
      console.log(`Error importing user ${indexedError.index}`);
    });
  })
  .catch((error) => {
    console.log('Error importing users :', error);
  });

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setEmail("user@example.com")
      .setPasswordHash("password-hash".getBytes())
      .setPasswordSalt("salt".getBytes())
      .build());
  UserImportOptions options = UserImportOptions.withHash(
      StandardScrypt.builder()
          .setMemoryCost(1024)
          .setParallelization(16)
          .setBlockSize(8)
          .setDerivedKeyLength(64)
          .build());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Python

users = [
    auth.ImportUserRecord(
        uid='some-uid',
        email='user@example.com',
        password_hash=b'password_hash',
        password_salt=b'salt'
    ),
]

hash_alg = auth.UserImportHash.standard_scrypt(
    memory_cost=1024, parallelization=16, block_size=8, derived_key_length=64)
try:
    result = auth.import_users(users, hash_alg=hash_alg)
    for err in result.errors:
        print('Failed to import user:', err.reason)
except exceptions.FirebaseError as error:
    print('Error importing users:', error)

Go

users := []*auth.UserToImport{
	(&auth.UserToImport{}).
		UID("some-uid").
		Email("user@example.com").
		PasswordHash([]byte("password-hash")).
		PasswordSalt([]byte("salt")),
}
h := hash.StandardScrypt{
	MemoryCost:       1024,
	Parallelization:  16,
	BlockSize:        8,
	DerivedKeyLength: 64,
}
result, err := client.ImportUsers(ctx, users, auth.WithHash(h))
if err != nil {
	log.Fatalln("Error importing users", err)
}
for _, e := range result.Errors {
	log.Println("Failed to import user", e.Reason)
}

C#

try
{
    var users = new List<ImportUserRecordArgs>()
    {
        new ImportUserRecordArgs()
        {
            Uid = "some-uid",
            Email = "user@example.com",
            PasswordHash = Encoding.ASCII.GetBytes("password-hash"),
            PasswordSalt = Encoding.ASCII.GetBytes("salt"),
        },
    };

    var options = new UserImportOptions()
    {
        Hash = new StandardScrypt()
        {
            MemoryCost = 1024,
            Parallelization = 16,
            BlockSize = 8,
            DerivedKeyLength = 64,
        },
    };

    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users, options);
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException e)
{
    Console.WriteLine($"Error importing users: {e.Message}");
}

Importar usuários que têm senhas de hash HMAC

Os algoritmos de hash HMAC incluem: HMAC_MD5, HMAC_SHA1, HMAC_SHA256 e HMAC_SHA512. Para estes algoritmos de hash, você precisa fornecer a chave de signatário do hash.

Node.js

getAuth()
  .importUsers(
    [
      {
        uid: 'some-uid',
        email: 'user@example.com',
        // Must be provided in a byte buffer.
        passwordHash: Buffer.from('password-hash'),
        // Must be provided in a byte buffer.
        passwordSalt: Buffer.from('salt'),
      },
    ],
    {
      hash: {
        algorithm: 'HMAC_SHA256',
        // Must be provided in a byte buffer.
        key: Buffer.from('secret'),
      },
    }
  )
  .then((results) => {
    results.errors.forEach((indexedError) => {
      console.log(`Error importing user ${indexedError.index}`);
    });
  })
  .catch((error) => {
    console.log('Error importing users :', error);
  });

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setEmail("user@example.com")
      .setPasswordHash("password-hash".getBytes())
      .setPasswordSalt("salt".getBytes())
      .build());
  UserImportOptions options = UserImportOptions.withHash(
      HmacSha256.builder()
          .setKey("secret".getBytes())
          .build());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Python

users = [
    auth.ImportUserRecord(
        uid='some-uid',
        email='user@example.com',
        password_hash=b'password_hash',
        password_salt=b'salt'
    ),
]

hash_alg = auth.UserImportHash.hmac_sha256(key=b'secret')
try:
    result = auth.import_users(users, hash_alg=hash_alg)
    for err in result.errors:
        print('Failed to import user:', err.reason)
except exceptions.FirebaseError as error:
    print('Error importing users:', error)

Go

users := []*auth.UserToImport{
	(&auth.UserToImport{}).
		UID("some-uid").
		Email("user@example.com").
		PasswordHash([]byte("password-hash")).
		PasswordSalt([]byte("salt")),
}
h := hash.HMACSHA256{
	Key: []byte("secret"),
}
result, err := client.ImportUsers(ctx, users, auth.WithHash(h))
if err != nil {
	log.Fatalln("Error importing users", err)
}
for _, e := range result.Errors {
	log.Println("Failed to import user", e.Reason)
}

C#

try
{
    var users = new List<ImportUserRecordArgs>()
    {
        new ImportUserRecordArgs()
        {
            Uid = "some-uid",
            Email = "user@example.com",
            PasswordHash = Encoding.ASCII.GetBytes("password-hash"),
            PasswordSalt = Encoding.ASCII.GetBytes("salt"),
        },
    };

    var options = new UserImportOptions()
    {
        Hash = new HmacSha256()
        {
            Key = Encoding.ASCII.GetBytes("secret"),
        },
    };

    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users, options);
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException e)
{
    Console.WriteLine($"Error importing users: {e.Message}");
}

Importar usuários que têm senhas de hash MD5, SHA e PBKDF

Os algoritmos de hash MD5, SHA e PBKDF incluem: MD5, SHA1, SHA256, SHA512, PBKDF_SHA1 e PBKDF2_SHA256. Para esses algoritmos de hash, é necessário fornecer o número de rodadas usadas para gerar o hash da senha (entre 0 e 8.192 para MD5, entre 1 e 8.192 para SHA1, SHA256 e SHA512 ou entre 0 e 120.000 para PBKDF_SHA1 e PBKDF2_SHA256).

Node.js

getAuth()
  .importUsers(
    [
      {
        uid: 'some-uid',
        email: 'user@example.com',
        // Must be provided in a byte buffer.
        passwordHash: Buffer.from('password-hash'),
        // Must be provided in a byte buffer.
        passwordSalt: Buffer.from('salt'),
      },
    ],
    {
      hash: {
        algorithm: 'PBKDF2_SHA256',
        rounds: 100000,
      },
    }
  )
  .then((results) => {
    results.errors.forEach((indexedError) => {
      console.log(`Error importing user ${indexedError.index}`);
    });
  })
  .catch((error) => {
    console.log('Error importing users :', error);
  });

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setEmail("user@example.com")
      .setPasswordHash("password-hash".getBytes())
      .setPasswordSalt("salt".getBytes())
      .build());
  UserImportOptions options = UserImportOptions.withHash(
      Pbkdf2Sha256.builder()
          .setRounds(100000)
          .build());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Python

users = [
    auth.ImportUserRecord(
        uid='some-uid',
        email='user@example.com',
        password_hash=b'password_hash',
        password_salt=b'salt'
    ),
]

hash_alg = auth.UserImportHash.pbkdf2_sha256(rounds=100000)
try:
    result = auth.import_users(users, hash_alg=hash_alg)
    for err in result.errors:
        print('Failed to import user:', err.reason)
except exceptions.FirebaseError as error:
    print('Error importing users:', error)

Go

users := []*auth.UserToImport{
	(&auth.UserToImport{}).
		UID("some-uid").
		Email("user@example.com").
		PasswordHash([]byte("password-hash")).
		PasswordSalt([]byte("salt")),
}
h := hash.PBKDF2SHA256{
	Rounds: 100000,
}
result, err := client.ImportUsers(ctx, users, auth.WithHash(h))
if err != nil {
	log.Fatalln("Error importing users", err)
}
for _, e := range result.Errors {
	log.Println("Failed to import user", e.Reason)
}

C#

try
{
    var users = new List<ImportUserRecordArgs>()
    {
        new ImportUserRecordArgs()
        {
            Uid = "some-uid",
            Email = "user@example.com",
            PasswordHash = Encoding.ASCII.GetBytes("password-hash"),
            PasswordSalt = Encoding.ASCII.GetBytes("salt"),
        },
    };

    var options = new UserImportOptions()
    {
        Hash = new Pbkdf2Sha256()
        {
            Rounds = 100000,
        },
    };

    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users, options);
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException e)
{
    Console.WriteLine($"Error importing users: {e.Message}");
}

Importar usuários que têm senhas de hash BCRYPT

Para as senhas de hash BCRYPT, não é necessário adicionar parâmetros de hash nem sal de senha para cada usuário.

Node.js

getAuth()
  .importUsers(
    [
      {
        uid: 'some-uid',
        email: 'user@example.com',
        // Must be provided in a byte buffer.
        passwordHash: Buffer.from('password-hash'),
      },
    ],
    {
      hash: {
        algorithm: 'BCRYPT',
      },
    }
  )
  .then((results) => {
    results.errors.forEach((indexedError) => {
      console.log(`Error importing user ${indexedError.index}`);
    });
  })
  .catch((error) => {
    console.log('Error importing users :', error);
  });

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setEmail("user@example.com")
      .setPasswordHash("password-hash".getBytes())
      .setPasswordSalt("salt".getBytes())
      .build());
  UserImportOptions options = UserImportOptions.withHash(Bcrypt.getInstance());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Python

users = [
    auth.ImportUserRecord(
        uid='some-uid',
        email='user@example.com',
        password_hash=b'password_hash',
        password_salt=b'salt'
    ),
]

hash_alg = auth.UserImportHash.bcrypt()
try:
    result = auth.import_users(users, hash_alg=hash_alg)
    for err in result.errors:
        print('Failed to import user:', err.reason)
except exceptions.FirebaseError as error:
    print('Error importing users:', error)

Go

users := []*auth.UserToImport{
	(&auth.UserToImport{}).
		UID("some-uid").
		Email("user@example.com").
		PasswordHash([]byte("password-hash")).
		PasswordSalt([]byte("salt")),
}
h := hash.Bcrypt{}
result, err := client.ImportUsers(ctx, users, auth.WithHash(h))
if err != nil {
	log.Fatalln("Error importing users", err)
}
for _, e := range result.Errors {
	log.Println("Failed to import user", e.Reason)
}

C#

try
{
    var users = new List<ImportUserRecordArgs>()
    {
        new ImportUserRecordArgs()
        {
            Uid = "some-uid",
            Email = "user@example.com",
            PasswordHash = Encoding.ASCII.GetBytes("password-hash"),
            PasswordSalt = Encoding.ASCII.GetBytes("salt"),
        },
    };

    var options = new UserImportOptions()
    {
        Hash = new Bcrypt(),
    };

    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users, options);
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException e)
{
    Console.WriteLine($"Error importing users: {e.Message}");
}

Importar usuários que têm senhas de hash do Argon2

Para importar registros de usuários que tenham senhas de hash do Argon2, crie um objeto de hash Argon2. No momento, isso é compatível apenas com o SDK Admin para Java.

Veja abaixo alguns dos parâmetros necessários para criar as opções de hash deste algoritmo:

hashLengthBytes: o tamanho de hash desejado em bytes, fornecido como um número inteiro
hashType: a variante Argon2 a ser usada (ARGON2_D, ARGON2_ID, ARGON2_I).
parallelism: o grau de paralelismo, fornecido como um número inteiro. Precisa estar entre 1 e 16 (inclusive).
iterations: o número de iterações a serem realizadas, fornecido como um número inteiro. Precisa estar entre 1 e 16 (inclusive).
memoryCostKib: o custo de memória necessário para esse algoritmo em kibibytes precisa ser inferior a 32.768.
version: a versão do algoritmo Argon2 (VERSION_10 ou VERSION_13). Opcional. Caso não seja especificado, o padrão será VERSION_13.
associatedData: outros dados associados, fornecidos como uma matriz de bytes, anexados ao valor de hash para fornecer uma camada adicional de segurança. Opcional. Esses dados são codificados em Base64 antes de serem enviados para a API.

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setEmail("user@example.com")
      .setPasswordHash("password-hash".getBytes())
      .setPasswordSalt("salt".getBytes())
      .build());
  UserImportOptions options = UserImportOptions.withHash(
      Argon2.builder()
          .setHashLengthBytes(512)
          .setHashType(Argon2HashType.ARGON2_ID)
          .setParallelism(8)
          .setIterations(16)
          .setMemoryCostKib(2048)
          .setVersion(Argon2Version.VERSION_10)
          .setAssociatedData("associated-data".getBytes())
          .build());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users, options);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Importar usuários sem senhas

Você pode importar usuários sem senhas. Eles podem ser importados em combinação com usuários que têm provedores OAuth, declarações personalizadas e números de telefone e assim por diante.

Node.js

getAuth()
  .importUsers([
    {
      uid: 'some-uid',
      displayName: 'John Doe',
      email: 'johndoe@gmail.com',
      photoURL: 'http://www.example.com/12345678/photo.png',
      emailVerified: true,
      phoneNumber: '+11234567890',
      // Set this user as admin.
      customClaims: { admin: true },
      // User with Google provider.
      providerData: [
        {
          uid: 'google-uid',
          email: 'johndoe@gmail.com',
          displayName: 'John Doe',
          photoURL: 'http://www.example.com/12345678/photo.png',
          providerId: 'google.com',
        },
      ],
    },
  ])
  .then((results) => {
    results.errors.forEach((indexedError) => {
      console.log(`Error importing user ${indexedError.index}`);
    });
  })
  .catch((error) => {
    console.log('Error importing users :', error);
  });

Java

try {
  List<ImportUserRecord> users = Collections.singletonList(ImportUserRecord.builder()
      .setUid("some-uid")
      .setDisplayName("John Doe")
      .setEmail("johndoe@gmail.com")
      .setPhotoUrl("http://www.example.com/12345678/photo.png")
      .setEmailVerified(true)
      .setPhoneNumber("+11234567890")
      .putCustomClaim("admin", true) // set this user as admin
      .addUserProvider(UserProvider.builder() // user with Google provider
          .setUid("google-uid")
          .setEmail("johndoe@gmail.com")
          .setDisplayName("John Doe")
          .setPhotoUrl("http://www.example.com/12345678/photo.png")
          .setProviderId("google.com")
          .build())
      .build());
  UserImportResult result = FirebaseAuth.getInstance().importUsers(users);
  for (ErrorInfo indexedError : result.getErrors()) {
    System.out.println("Failed to import user: " + indexedError.getReason());
  }
} catch (FirebaseAuthException e) {
  System.out.println("Error importing users: " + e.getMessage());
}

Python

users = [
    auth.ImportUserRecord(
        uid='some-uid',
        display_name='John Doe',
        email='johndoe@gmail.com',
        photo_url='http://www.example.com/12345678/photo.png',
        email_verified=True,
        phone_number='+11234567890',
        custom_claims={'admin': True}, # set this user as admin
        provider_data=[ # user with Google provider
            auth.UserProvider(
                uid='google-uid',
                email='johndoe@gmail.com',
                display_name='John Doe',
                photo_url='http://www.example.com/12345678/photo.png',
                provider_id='google.com'
            )
        ],
    ),
]
try:
    result = auth.import_users(users)
    for err in result.errors:
        print('Failed to import user:', err.reason)
except exceptions.FirebaseError as error:
    print('Error importing users:', error)

Go

users := []*auth.UserToImport{
	(&auth.UserToImport{}).
		UID("some-uid").
		DisplayName("John Doe").
		Email("johndoe@gmail.com").
		PhotoURL("http://www.example.com/12345678/photo.png").
		EmailVerified(true).
		PhoneNumber("+11234567890").
		CustomClaims(map[string]interface{}{"admin": true}). // set this user as admin
		ProviderData([]*auth.UserProvider{                   // user with Google provider
			{
				UID:         "google-uid",
				Email:       "johndoe@gmail.com",
				DisplayName: "John Doe",
				PhotoURL:    "http://www.example.com/12345678/photo.png",
				ProviderID:  "google.com",
			},
		}),
}
result, err := client.ImportUsers(ctx, users)
if err != nil {
	log.Fatalln("Error importing users", err)
}
for _, e := range result.Errors {
	log.Println("Failed to import user", e.Reason)
}

C#

try
{
    var users = new List<ImportUserRecordArgs>()
    {
        new ImportUserRecordArgs()
        {
            Uid = "some-uid",
            DisplayName = "John Doe",
            Email = "johndoe@gmail.com",
            PhotoUrl = "http://www.example.com/12345678/photo.png",
            EmailVerified = true,
            PhoneNumber = "+11234567890",
            CustomClaims = new Dictionary<string, object>()
            {
                { "admin", true }, // set this user as admin
            },
            UserProviders = new List<UserProvider>
            {
                new UserProvider() // user with Google provider
                {
                    Uid = "google-uid",
                    Email = "johndoe@gmail.com",
                    DisplayName = "John Doe",
                    PhotoUrl = "http://www.example.com/12345678/photo.png",
                    ProviderId = "google.com",
                },
            },
        },
    };

    UserImportResult result = await FirebaseAuth.DefaultInstance.ImportUsersAsync(users);
    foreach (ErrorInfo indexedError in result.Errors)
    {
        Console.WriteLine($"Failed to import user: {indexedError.Reason}");
    }
}
catch (FirebaseAuthException e)
{
    Console.WriteLine($"Error importing users: {e.Message}");
}