Revert "feat(otlp-trace-exporters): Add User-Agent header to OTLP trace exporters (open-telemetry#3790)"

This reverts commit 758c7af.

Author: llc1123

experimental/CHANGELOG.md

@@ -4,10 +4,6 @@ All notable changes to experimental packages in this project will be documented
 
 ## Unreleased
 
-### :rocket: (Enhancement)
-
-* feat(otlp-trace-exporters): Add User-Agent header to OTLP trace exporters. [#3790](https://github.com/open-telemetry/opentelemetry-js/pull/3790) @JamieDanielson
-
 ### :boom: Breaking Change
 
 ### :rocket: (Enhancement)

experimental/packages/exporter-trace-otlp-grpc/src/OTLPTraceExporter.ts

@@ -28,11 +28,6 @@ import {
   createExportTraceServiceRequest,
   IExportTraceServiceRequest,
 } from '@opentelemetry/otlp-transformer';
-import { VERSION } from './version';
-
-const USER_AGENT = {
-  'User-Agent': `OTel-OTLP-Exporter-JavaScript/${VERSION}`,
-};
 
 /**
  * OTLP Trace Exporter for Node
@@ -43,12 +38,9 @@ export class OTLPTraceExporter
 {
   constructor(config: OTLPGRPCExporterConfigNode = {}) {
     super(config);
-    const headers = {
-      ...USER_AGENT,
-      ...baggageUtils.parseKeyPairsIntoRecord(
-        getEnv().OTEL_EXPORTER_OTLP_TRACES_HEADERS
-      ),
-    };
+    const headers = baggageUtils.parseKeyPairsIntoRecord(
+      getEnv().OTEL_EXPORTER_OTLP_TRACES_HEADERS
+    );
     this.metadata ||= new Metadata();
     for (const [k, v] of Object.entries(headers)) {
       this.metadata.set(k, v);

experimental/packages/exporter-trace-otlp-grpc/test/OTLPTraceExporter.test.ts

@@ -27,7 +27,6 @@ import * as grpc from '@grpc/grpc-js';
 import * as path from 'path';
 import * as sinon from 'sinon';
 import { OTLPTraceExporter } from '../src';
-import { VERSION } from '../src/version';
 
 import {
   ensureExportedSpanIsCorrect,
@@ -337,12 +336,6 @@ describe('when configuring via environment', () => {
     assert.deepStrictEqual(collectorExporter.metadata?.get('foo'), ['bar']);
     envSource.OTEL_EXPORTER_OTLP_HEADERS = '';
   });
-  it('should include user agent in header', () => {
-    const collectorExporter = new OTLPTraceExporter();
-    assert.deepStrictEqual(collectorExporter.metadata?.get('User-Agent'), [
-      `OTel-OTLP-Exporter-JavaScript/${VERSION}`,
-    ]);
-  });
   it('should override global headers config with signal headers defined via env', () => {
     const metadata = new grpc.Metadata();
     metadata.set('foo', 'bar');

experimental/packages/exporter-trace-otlp-http/src/platform/node/OTLPTraceExporter.ts

@@ -26,13 +26,9 @@ import {
   createExportTraceServiceRequest,
   IExportTraceServiceRequest,
 } from '@opentelemetry/otlp-transformer';
-import { VERSION } from '../../version';
 
 const DEFAULT_COLLECTOR_RESOURCE_PATH = 'v1/traces';
 const DEFAULT_COLLECTOR_URL = `http://localhost:4318/${DEFAULT_COLLECTOR_RESOURCE_PATH}`;
-const USER_AGENT = {
-  'User-Agent': `OTel-OTLP-Exporter-JavaScript/${VERSION}`,
-};
 
 /**
  * Collector Trace Exporter for Node
@@ -43,13 +39,12 @@ export class OTLPTraceExporter
 {
   constructor(config: OTLPExporterNodeConfigBase = {}) {
     super(config);
-    this.headers = {
-      ...this.headers,
-      ...USER_AGENT,
-      ...baggageUtils.parseKeyPairsIntoRecord(
+    this.headers = Object.assign(
+      this.headers,
+      baggageUtils.parseKeyPairsIntoRecord(
         getEnv().OTEL_EXPORTER_OTLP_TRACES_HEADERS
-      ),
-    };
+      )
+    );
   }
 
   convert(spans: ReadableSpan[]): IExportTraceServiceRequest {

experimental/packages/exporter-trace-otlp-http/test/node/CollectorTraceExporter.test.ts

@@ -36,7 +36,6 @@ import {
 import { nextTick } from 'process';
 import { MockedResponse } from './nodeHelpers';
 import { IExportTraceServiceRequest } from '@opentelemetry/otlp-transformer';
-import { VERSION } from '../../src/version';
 
 let fakeRequest: PassThrough;
 
@@ -161,13 +160,6 @@ describe('OTLPTraceExporter - node with json over http', () => {
       assert.strictEqual(collectorExporter.headers.foo, 'bar');
       envSource.OTEL_EXPORTER_OTLP_HEADERS = '';
     });
-    it('should include user agent in header', () => {
-      const collectorExporter = new OTLPTraceExporter();
-      assert.strictEqual(
-        collectorExporter.headers['User-Agent'],
-        `OTel-OTLP-Exporter-JavaScript/${VERSION}`
-      );
-    });
     it('should override global headers config with signal headers defined via env', () => {
       envSource.OTEL_EXPORTER_OTLP_HEADERS = 'foo=bar,bar=foo';
       envSource.OTEL_EXPORTER_OTLP_TRACES_HEADERS = 'foo=boo';

experimental/packages/exporter-trace-otlp-proto/src/platform/node/OTLPTraceExporter.ts

@@ -29,13 +29,9 @@ import {
   createExportTraceServiceRequest,
   IExportTraceServiceRequest,
 } from '@opentelemetry/otlp-transformer';
-import { VERSION } from '../../version';
 
 const DEFAULT_COLLECTOR_RESOURCE_PATH = 'v1/traces';
 const DEFAULT_COLLECTOR_URL = `http://localhost:4318/${DEFAULT_COLLECTOR_RESOURCE_PATH}`;
-const USER_AGENT = {
-  'User-Agent': `OTel-OTLP-Exporter-JavaScript/${VERSION}`,
-};
 
 /**
  * Collector Trace Exporter for Node with protobuf
@@ -46,13 +42,12 @@ export class OTLPTraceExporter
 {
   constructor(config: OTLPExporterNodeConfigBase = {}) {
     super(config);
-    this.headers = {
-      ...this.headers,
-      ...USER_AGENT,
-      ...baggageUtils.parseKeyPairsIntoRecord(
+    this.headers = Object.assign(
+      this.headers,
+      baggageUtils.parseKeyPairsIntoRecord(
         getEnv().OTEL_EXPORTER_OTLP_TRACES_HEADERS
-      ),
-    };
+      )
+    );
   }
 
   convert(spans: ReadableSpan[]): IExportTraceServiceRequest {

experimental/packages/exporter-trace-otlp-proto/test/node/OTLPTraceExporter.test.ts

@@ -39,7 +39,6 @@ import {
   ServiceClientType,
 } from '@opentelemetry/otlp-proto-exporter-base';
 import { IExportTraceServiceRequest } from '@opentelemetry/otlp-transformer';
-import { VERSION } from '../../src/version';
 
 let fakeRequest: PassThrough;
 
@@ -53,16 +52,6 @@ describe('OTLPTraceExporter - node with proto over http', () => {
     sinon.restore();
   });
 
-  describe('default behavior for headers', () => {
-    const collectorExporter = new OTLPTraceExporter();
-    it('should include user agent in header', () => {
-      assert.strictEqual(
-        collectorExporter.headers['User-Agent'],
-        `OTel-OTLP-Exporter-JavaScript/${VERSION}`
-      );
-    });
-  });
-
   describe('when configuring via environment', () => {
     const envSource = process.env;
     it('should use url defined in env that ends with root path and append version and signal path', () => {