Default Headers

package.json

@@ -167,7 +167,8 @@
     "generate_services": "ts-node scripts/generate_services",
     "clear_generated_services": "ts-node scripts/clear_generated_services",
     "build:services": "ts-node scripts/build_services",
-    "build:mono-service": "cross-env NODE_OPTIONS=\"--max-old-space-size=4096\" tsc -p .",
+    "generate_default_headers": "ts-node scripts/generate_default_headers",
+    "build:mono-service": "npm run generate_default_headers && cross-env NODE_OPTIONS=\"--max-old-space-size=4096\" tsc -p .",
     "build": "npm run build:mono-service && npm run build:services",
     "typecheck:clients": "tsc -p ./clients --noEmit"
   },

scripts/generate_default_headers.ts

@@ -0,0 +1,16 @@
+import { readFileSync, writeFileSync } from 'fs';
+import { resolve } from 'path';
+
+const packageJSONPath = resolve('package.json');
+const data = readFileSync(packageJSONPath, 'utf8');
+const jsonData = JSON.parse(data);
+
+const defaultHeadersPath = resolve('./src/default-headers.ts');
+writeFileSync(
+    defaultHeadersPath,
+    `export const DEFAULT_HEADERS = {
+    ['x-proxy-agent']: '${jsonData.name}',
+    ['x-proxy-agent-version']: '${jsonData.version}',
+};\n`,
+    'utf8',
+);

src/default-headers.ts

@@ -0,0 +1,4 @@
+export const DEFAULT_HEADERS = {
+    ['x-proxy-agent']: '@yandex-cloud/nodejs-sdk',
+    ['x-proxy-agent-version']: 'undefined',
+};

src/session.ts

@@ -20,6 +20,9 @@ import {
     IamTokenServiceClient,
 } from './generated/yandex/cloud/iam/v1/iam_token_service';
 
+import { DEFAULT_HEADERS } from './default-headers';
+import { merge } from 'lodash';
+
 const isOAuth = (config: SessionConfig): config is OAuthCredentialsConfig => 'oauthToken' in config;
 
 const isIamToken = (config: SessionConfig): config is IamTokenCredentialsConfig =>
@@ -100,13 +103,12 @@ export class Session {
 
     private static readonly DEFAULT_CONFIG = {
         pollInterval: 1000,
+        headers: DEFAULT_HEADERS,
     };
 
     constructor(config?: SessionConfig) {
-        this.config = {
-            ...Session.DEFAULT_CONFIG,
-            ...config,
-        };
+        this.config = merge(Session.DEFAULT_CONFIG, config);
+
         this.tokenCreator = newTokenCreator(this.config);
         this.channelCredentials = newChannelCredentials(
             this.tokenCreator,