diff --git a/src/infra/grpc/grpc.options.ts b/src/infra/grpc/grpc.options.ts
new file mode 100644
index 0000000..bf16ec9
--- /dev/null
+++ b/src/infra/grpc/grpc.options.ts
@@ -0,0 +1,12 @@
+import { GrpcOptions } from '@nestjs/microservices'
+import { PROTO_PATHS } from '@teacinema/contracts'
+
+export const grpcPackages = ['auth.v1']
+export const grpcProtoPaths = [PROTO_PATHS.AUTH]
+export const grpcLoader: GrpcOptions['options']['loader'] = {
+  keepCase: false,
+  longs: String,
+  enums: String,
+  defaults: true,
+  oneofs: true
+}
diff --git a/src/infra/grpc/grpc.server.ts b/src/infra/grpc/grpc.server.ts
new file mode 100644
index 0000000..fec6a07
--- /dev/null
+++ b/src/infra/grpc/grpc.server.ts
@@ -0,0 +1,26 @@
+import { INestApplication } from '@nestjs/common'
+import { ConfigService } from '@nestjs/config'
+import { MicroserviceOptions, Transport } from '@nestjs/microservices'
+
+import { AllConfigs } from '@/config'
+
+import { grpcLoader, grpcPackages, grpcProtoPaths } from './grpc.options'
+
+export function createGrpcServer(
+  app: INestApplication,
+  config: ConfigService<AllConfigs>
+) {
+  const host = config.get('grpc.host', { infer: true })
+  const port = config.get('grpc.port', { infer: true })
+  const url = `${host}:${port}`
+
+  app.connectMicroservice<MicroserviceOptions>({
+    transport: Transport.GRPC,
+    options: {
+      url,
+      package: grpcPackages,
+      protoPath: grpcProtoPaths,
+      loader: grpcLoader
+    }
+  })
+}
diff --git a/src/main.ts b/src/main.ts
index 995def4..2dbdaaa 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,33 +1,15 @@
 import { ConfigService } from '@nestjs/config'
 import { NestFactory } from '@nestjs/core'
-import { MicroserviceOptions, Transport } from '@nestjs/microservices'
+
+import { createGrpcServer } from '@/infra/grpc/grpc.server'
 
 import { AppModule } from './app.module'
-import { AllConfigs } from './config'
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule)
 
-  const config = app.get(ConfigService<AllConfigs>)
-  const host = config.get('grpc.host', { infer: true })
-  const port = config.get('grpc.port', { infer: true })
-  const url = `${host}:${port}`
-
-  app.connectMicroservice<MicroserviceOptions>({
-    transport: Transport.GRPC,
-    options: {
-      url,
-      package: 'auth.v1',
-      protoPath: 'node_modules/@teacinema/contracts/proto/auth.proto',
-      loader: {
-        keepCase: false,
-        longs: String,
-        enums: String,
-        defaults: true,
-        oneofs: true
-      }
-    }
-  })
+  const config = app.get(ConfigService)
+  createGrpcServer(app, config)
 
   await app.startAllMicroservices()
   await app.init()
diff --git a/yarn.lock b/yarn.lock
index 1cbf652..a78b8ed 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1360,9 +1360,9 @@
   integrity sha512-L006mySvhRpUlRHf3ONbXA0RG42gbQ9QAnmQuZx4zejHEsWB9702xe18MSYcBilv+lmYkQpiX/g3p8P7suLfqQ==
 
 "@teacinema/contracts@^1.0.0":
-  version "1.0.1"
-  resolved "https://git.ksv741.keenetic.pro/api/packages/teacinema/npm/%40teacinema%2Fcontracts/-/1.0.1/contracts-1.0.1.tgz#25021fecb1d33d0505fd11ca3d8201660cb1bcbe"
-  integrity sha512-gvdbQ3Xowr4/h9Kq2P+pO2lr9vyWvIvRoU74mG3LSq2IiKKuwQUTxRaJnzI5MdtNqiq0WIUMo30cfqnBzNAJ1A==
+  version "1.0.4"
+  resolved "https://git.ksv741.keenetic.pro/api/packages/teacinema/npm/%40teacinema%2Fcontracts/-/1.0.4/contracts-1.0.4.tgz#178dc6392aae52c4dc2b60bb1470a0a2885a8715"
+  integrity sha512-3jHP4NAoH9munaN2Iegvg0X6KN/SR1rwZU7KpbuBtlcTJqsLljTaHwG+XKjEL84Y9b+sF73jGGbg/w2Y8IBQmw==
   dependencies:
     "@nestjs/microservices" "^11.1.12"
     protoc "33.4.0"