feat(grpc): add possibility to fetch user by id

kreya/gRPC/Get User By Id-request.json

@@ -0,0 +1,3 @@
+{
+  "id": "179828644301046017"
+}

kreya/gRPC/Get User By Id.krop

@@ -0,0 +1,12 @@
+{
+  "details": {
+    "methodFqn": "users.UsersService.Get"
+  },
+  "requests": [
+    {
+      "location": "Get User By Id-request.json"
+    }
+  ],
+  "operationType": "unary",
+  "invokerName": "grpc"
+}

src/grpc/protos/users.proto

@@ -30,14 +30,20 @@ service UsersService {
     // The result is paginated.
     rpc List(ListRequest) returns (ListResponse);
 
+    // Fetch a user by ID.
+    rpc Get(GetRequest) returns (User);
+
     // Get the authenticated own user.
     rpc Me(google.protobuf.Empty) returns (User);
 }
 
 message ListRequest {
     uint32 offset = 1;
     uint32 limit = 2;
-    string newer_than = 3;
+}
+
+message GetRequest {
+    string id = 1;
 }
 
 message ListResponse {

src/grpc/users.grpc.ts

@@ -1,12 +1,13 @@
 import { Metadata } from '@grpc/grpc-js';
 import { UseGuards } from '@nestjs/common';
-import { GrpcMethod, GrpcService } from '@nestjs/microservices';
+import { GrpcMethod, GrpcService, RpcException } from '@nestjs/microservices';
 import { User } from 'src/auth/user';
 import {
   UsersService as DataUsersService,
   ZitadelUser,
 } from '../data/users.service';
 import { Empty } from './gen/google/protobuf/Empty';
+import { GetRequest } from './gen/users/GetRequest';
 import { ListRequest } from './gen/users/ListRequest';
 import { ListResponse } from './gen/users/ListResponse';
 import { User as GrpcUser } from './gen/users/User';
@@ -51,6 +52,16 @@ export class UsersService {
     };
   }
 
+  @GrpcMethod()
+  async get({ id }: GetRequest): Promise<GrpcUser> {
+    if (!id) {
+      throw new RpcException('id is required');
+    }
+
+    const user = await this.users.get(id);
+    return mapUser(user);
+  }
+
   @GrpcMethod()
   async me(_: Empty, metadata: Metadata): Promise<GrpcUser> {
     const user = grpcUser(metadata);