> ## Documentation Index > Fetch the complete documentation index at: https://cantonfoundation-update-ref-tables.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # UserManagementServiceGrpc > Service to manage users and their rights for interacting with the Ledger API served by a participant node. The authorization rules for its RPCs are specified on the ``Request`` messages as boolean expressions over these facts: 1. ``HasRight(r)`` denoting whether the authenticated user has right ``r`` and 2. ``IsAuthenticatedUser(uid)`` denoting whether ``uid`` is the empty string or equal to the id of the authenticated user. 3. ``IsAuthenticatedIdentityProviderAdmin(idp)`` denoting whether ``idp`` is equal to the ``identity_provider_id`` of the authenticated user and the user has an IdentityProviderAdmin right. If `user_id` is set to the empty string (the default), then the data for the authenticated user will be retrieved. If `identity_provider_id` is set to an empty string, then it's effectively set to the value of access token's 'iss' field if that is provided. If `identity_provider_id` remains an empty string, the default identity provider will be assumed. The fields of request messages (and sub-messages) are marked either as ``Optional`` or ``Required``: 1. ``Optional`` denoting the client may leave the field unset when sending a request. 2. ``Required`` denoting the client must set the field to a non-default value when sending a request. A user resource consists of: 1. a set of properties represented by the ``User`` message, 2. a set of user rights, where each right is represented by the ``Right`` message. A user resource, once it has been created, can be modified. In order to update the properties represented by the ``User`` message use the ``UpdateUser`` RPC. The only fields that can be modified are those marked as ``Modifiable``. In order to grant or revoke user rights use ``GrantRights' and ``RevokeRights`` RPCs. ## UserManagementServiceGrpc Upstream docs: [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html) **Signature** ```text theme={"theme":{"light":"github-light","dark":"github-dark"}} @Generated(value="by gRPC proto compiler (version 1.60.2)", comments="Source: com/daml/ledger/api/v2/admin/user_management_service.proto") public final class UserManagementServiceGrpc extends Object ``` **Members** | Docs | Member | Introduced | Deprecated | Removed | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------- | ---------- | ---------- | ------- | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#SERVICE_NAME) | `SERVICE_NAME` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#bindService%28com.daml.ledger.api.v2.admin.UserManagementServiceGrpc.AsyncService%29) | `bindService(UserManagementServiceGrpc.AsyncService)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getCreateUserMethod%28%29) | `getCreateUserMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getDeleteUserMethod%28%29) | `getDeleteUserMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getGetUserMethod%28%29) | `getGetUserMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getGrantUserRightsMethod%28%29) | `getGrantUserRightsMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getListUserRightsMethod%28%29) | `getListUserRightsMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getListUsersMethod%28%29) | `getListUsersMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getRevokeUserRightsMethod%28%29) | `getRevokeUserRightsMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getServiceDescriptor%28%29) | `getServiceDescriptor()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getUpdateUserIdentityProviderIdMethod%28%29) | `getUpdateUserIdentityProviderIdMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#getUpdateUserMethod%28%29) | `getUpdateUserMethod()` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#newBlockingStub%28io.grpc.Channel%29) | `newBlockingStub(Channel)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#newFutureStub%28io.grpc.Channel%29) | `newFutureStub(Channel)` | `3.5.6` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.6/com/daml/ledger/api/v2/admin/UserManagementServiceGrpc.html#newStub%28io.grpc.Channel%29) | `newStub(Channel)` | `3.5.6` | - | - |