feat: centralize grpc client registration

lib/grpc/grpc.module.ts

@@ -0,0 +1,46 @@
+import { type DynamicModule, Module } from '@nestjs/common'
+import { ConfigService } from '@nestjs/config'
+
+import { GRPC_CLIENT_PREFIX } from './constants/grpc.constants'
+import { GrpcClientFactory } from './factory/grpc-client.factory'
+import { GRPC_CLIENTS } from './registry/grpc.registry'
+
+@Module({})
+export class GrpcModule {
+	public static register(
+		clients: Array<keyof typeof GRPC_CLIENTS>
+	): DynamicModule {
+		return {
+			module: GrpcModule,
+			providers: [
+				GrpcClientFactory,
+				...clients.map(token => {
+					const cfg = GRPC_CLIENTS[token]
+					return {
+						provide: `${GRPC_CLIENT_PREFIX}_${token}`,
+						useFactory: (
+							factory: GrpcClientFactory,
+							config: ConfigService
+						) => {
+							const url = config.getOrThrow(cfg.env)
+							const client = factory.createClient({
+								package: cfg.package,
+								protoPath: cfg.protoPath,
+								url
+							})
+
+							factory.register(token, client)
+
+							return client
+						},
+						inject: [GrpcClientFactory, ConfigService]
+					}
+				})
+			],
+			exports: [
+				GrpcClientFactory,
+				...clients.map(token => `${GRPC_CLIENT_PREFIX}_${token}`)
+			]
+		}
+	}
+}