feat!: use serializers in browser exporters

experimental/CHANGELOG.md

@@ -11,6 +11,12 @@ All notable changes to experimental packages in this project will be documented
     * (user-facing) `convert()` now returns an empty object and will be removed in a follow-up
     * (internal) OTLPExporterNodeBase now has additional constructor parameters that are required
     * (internal) OTLPExporterNodeBase now has an additional `ResponseType` type parameter
+* feat(exporter-*-otlp-*)!: move serialization for Node.js exporters to `@opentelemetry/otlp-transformer` [#4581](https://github.com/open-telemetry/opentelemetry-js/pull/4581) @pichlermarc
+  * Breaking changes:
+    * (user-facing) `convert()` has been removed from all exporters
+    * (internal) OTLPExporterBrowserBase: `RequestType` has been replaced by a `ResponseType` type-argument
+    * (internal) OTLPExporterNodeBase: `ServiceRequest` has been replaced by a `ServiceResponse` type-argument
+    * (internal) the `@opentelemetry/otlp-exporter-proto-base` package has been removed, and will from now on be deprecated in `npm`
 
 ### :rocket: (Enhancement)
 

experimental/packages/exporter-logs-otlp-grpc/src/OTLPLogExporter.ts

@@ -23,7 +23,6 @@ import {
   DEFAULT_COLLECTOR_URL,
 } from '@opentelemetry/otlp-grpc-exporter-base';
 import {
-  IExportLogsServiceRequest,
   IExportLogsServiceResponse,
   ProtobufLogsSerializer,
 } from '@opentelemetry/otlp-transformer';
@@ -39,7 +38,6 @@ const USER_AGENT = {
 export class OTLPLogExporter
   extends OTLPGRPCExporterNodeBase<
     ReadableLogRecord,
-    IExportLogsServiceRequest,
     IExportLogsServiceResponse
   >
   implements LogRecordExporter

experimental/packages/exporter-logs-otlp-http/src/platform/browser/OTLPLogExporter.ts

@@ -19,26 +19,30 @@ import type {
   LogRecordExporter,
 } from '@opentelemetry/sdk-logs';
 import type { OTLPExporterConfigBase } from '@opentelemetry/otlp-exporter-base';
-import type { IExportLogsServiceRequest } from '@opentelemetry/otlp-transformer';
+import type { IExportLogsServiceResponse } from '@opentelemetry/otlp-transformer';
 import { OTLPExporterBrowserBase } from '@opentelemetry/otlp-exporter-base';
 import { baggageUtils, getEnv } from '@opentelemetry/core';
-import { createExportLogsServiceRequest } from '@opentelemetry/otlp-transformer';
+import { JsonLogsSerializer } from '@opentelemetry/otlp-transformer';
 
 import { getDefaultUrl } from '../config';
 
 /**
  * Collector Logs Exporter for Web
  */
 export class OTLPLogExporter
-  extends OTLPExporterBrowserBase<ReadableLogRecord, IExportLogsServiceRequest>
+  extends OTLPExporterBrowserBase<ReadableLogRecord, IExportLogsServiceResponse>
   implements LogRecordExporter
 {
   constructor(config: OTLPExporterConfigBase = {}) {
     // load  OTEL_EXPORTER_OTLP_LOGS_TIMEOUT env var
-    super({
-      timeoutMillis: getEnv().OTEL_EXPORTER_OTLP_LOGS_TIMEOUT,
-      ...config,
-    });
+    super(
+      {
+        timeoutMillis: getEnv().OTEL_EXPORTER_OTLP_LOGS_TIMEOUT,
+        ...config,
+      },
+      JsonLogsSerializer,
+      'application/json'
+    );
     this._headers = {
       ...this._headers,
       ...baggageUtils.parseKeyPairsIntoRecord(
@@ -47,13 +51,6 @@ export class OTLPLogExporter
     };
   }
 
-  convert(logRecords: ReadableLogRecord[]): IExportLogsServiceRequest {
-    return createExportLogsServiceRequest(logRecords, {
-      useHex: true,
-      useLongBits: false,
-    });
-  }
-
   getDefaultUrl(config: OTLPExporterConfigBase): string {
     return getDefaultUrl(config);
   }

experimental/packages/exporter-logs-otlp-http/src/platform/node/OTLPLogExporter.ts

@@ -19,10 +19,7 @@ import type {
   LogRecordExporter,
 } from '@opentelemetry/sdk-logs';
 import type { OTLPExporterNodeConfigBase } from '@opentelemetry/otlp-exporter-base';
-import type {
-  IExportLogsServiceRequest,
-  IExportLogsServiceResponse,
-} from '@opentelemetry/otlp-transformer';
+import type { IExportLogsServiceResponse } from '@opentelemetry/otlp-transformer';
 import { getEnv, baggageUtils } from '@opentelemetry/core';
 import {
   OTLPExporterNodeBase,
@@ -41,11 +38,7 @@ const USER_AGENT = {
  * Collector Logs Exporter for Node
  */
 export class OTLPLogExporter
-  extends OTLPExporterNodeBase<
-    ReadableLogRecord,
-    IExportLogsServiceRequest,
-    IExportLogsServiceResponse
-  >
+  extends OTLPExporterNodeBase<ReadableLogRecord, IExportLogsServiceResponse>
   implements LogRecordExporter
 {
   constructor(config: OTLPExporterNodeConfigBase = {}) {

experimental/packages/exporter-logs-otlp-proto/package.json

@@ -97,7 +97,6 @@
     "@opentelemetry/api-logs": "0.51.0",
     "@opentelemetry/core": "1.24.0",
     "@opentelemetry/otlp-exporter-base": "0.51.0",
-    "@opentelemetry/otlp-proto-exporter-base": "0.51.0",
     "@opentelemetry/otlp-transformer": "0.51.0",
     "@opentelemetry/resources": "1.24.0",
     "@opentelemetry/sdk-logs": "0.51.0",

experimental/packages/exporter-logs-otlp-proto/src/platform/browser/OTLPLogExporter.ts

@@ -19,14 +19,11 @@ import {
   OTLPExporterConfigBase,
   appendResourcePathToUrl,
   appendRootPathToUrlIfNeeded,
+  OTLPExporterBrowserBase,
 } from '@opentelemetry/otlp-exporter-base';
 import {
-  OTLPProtoExporterBrowserBase,
-  ServiceClientType,
-} from '@opentelemetry/otlp-proto-exporter-base';
-import {
-  createExportLogsServiceRequest,
-  IExportLogsServiceRequest,
+  IExportLogsServiceResponse,
+  ProtobufLogsSerializer,
 } from '@opentelemetry/otlp-transformer';
 
 import { ReadableLogRecord, LogRecordExporter } from '@opentelemetry/sdk-logs';
@@ -38,24 +35,18 @@ const DEFAULT_COLLECTOR_URL = `http://localhost:4318/${DEFAULT_COLLECTOR_RESOURC
  * Collector Trace Exporter for Web
  */
 export class OTLPLogExporter
-  extends OTLPProtoExporterBrowserBase<
-    ReadableLogRecord,
-    IExportLogsServiceRequest
-  >
+  extends OTLPExporterBrowserBase<ReadableLogRecord, IExportLogsServiceResponse>
   implements LogRecordExporter
 {
   constructor(config: OTLPExporterConfigBase = {}) {
-    super(config);
+    super(config, ProtobufLogsSerializer, 'application/x-protobuf');
     this._headers = Object.assign(
       this._headers,
       baggageUtils.parseKeyPairsIntoRecord(
         getEnv().OTEL_EXPORTER_OTLP_LOGS_HEADERS
       )
     );
   }
-  convert(logs: ReadableLogRecord[]): IExportLogsServiceRequest {
-    return createExportLogsServiceRequest(logs);
-  }
 
   getDefaultUrl(config: OTLPExporterConfigBase): string {
     return typeof config.url === 'string'
@@ -69,8 +60,4 @@ export class OTLPLogExporter
         )
       : DEFAULT_COLLECTOR_URL;
   }
-
-  getServiceClientType() {
-    return ServiceClientType.LOGS;
-  }
 }

experimental/packages/exporter-logs-otlp-proto/src/platform/node/OTLPLogExporter.ts

@@ -22,9 +22,7 @@ import {
   OTLPExporterNodeBase,
   parseHeaders,
 } from '@opentelemetry/otlp-exporter-base';
-import { ServiceClientType } from '@opentelemetry/otlp-proto-exporter-base';
 import {
-  IExportLogsServiceRequest,
   IExportLogsServiceResponse,
   ProtobufLogsSerializer,
 } from '@opentelemetry/otlp-transformer';
@@ -43,11 +41,7 @@ const DEFAULT_COLLECTOR_URL = `http://localhost:4318/${DEFAULT_COLLECTOR_RESOURC
  * Collector Trace Exporter for Node
  */
 export class OTLPLogExporter
-  extends OTLPExporterNodeBase<
-    ReadableLogRecord,
-    IExportLogsServiceRequest,
-    IExportLogsServiceResponse
-  >
+  extends OTLPExporterNodeBase<ReadableLogRecord, IExportLogsServiceResponse>
   implements LogRecordExporter
 {
   constructor(config: OTLPExporterConfigBase = {}) {
@@ -74,8 +68,4 @@ export class OTLPLogExporter
         )
       : DEFAULT_COLLECTOR_URL;
   }
-
-  getServiceClientType() {
-    return ServiceClientType.LOGS;
-  }
 }

experimental/packages/exporter-logs-otlp-proto/test/node/OTLPLogExporter.test.ts

@@ -33,16 +33,27 @@ import {
   OTLPExporterNodeConfigBase,
   OTLPExporterError,
 } from '@opentelemetry/otlp-exporter-base';
-import {
-  getExportRequestProto,
-  ServiceClientType,
-} from '@opentelemetry/otlp-proto-exporter-base';
 import { IExportLogsServiceRequest } from '@opentelemetry/otlp-transformer';
 import { ReadableLogRecord } from '@opentelemetry/sdk-logs';
 import { VERSION } from '../../src/version';
+import { Root } from 'protobufjs';
+import * as path from 'path';
 
 let fakeRequest: PassThrough;
 
+const dir = path.resolve(__dirname, '../../../otlp-transformer/protos');
+const root = new Root();
+root.resolvePath = function (origin, target) {
+  return `${dir}/${target}`;
+};
+const proto = root.loadSync([
+  'opentelemetry/proto/common/v1/common.proto',
+  'opentelemetry/proto/resource/v1/resource.proto',
+  'opentelemetry/proto/logs/v1/logs.proto',
+  'opentelemetry/proto/collector/logs/v1/logs_service.proto',
+]);
+const exportRequestServiceProto = proto?.lookupType('ExportLogsServiceRequest');
+
 describe('OTLPLogExporter - node with proto over http', () => {
   let collectorExporter: OTLPLogExporter;
   let collectorExporterConfig: OTLPExporterNodeConfigBase;
@@ -240,10 +251,7 @@ describe('OTLPLogExporter - node with proto over http', () => {
 
       let buff = Buffer.from('');
       fakeRequest.on('end', () => {
-        const ExportLogsServiceRequestProto = getExportRequestProto(
-          ServiceClientType.LOGS
-        );
-        const data = ExportLogsServiceRequestProto.decode(buff);
+        const data = exportRequestServiceProto.decode(buff);
         const json = data?.toJSON() as IExportLogsServiceRequest;
         const log1 = json.resourceLogs?.[0].scopeLogs?.[0].logRecords?.[0];
         assert.ok(typeof log1 !== 'undefined', "log doesn't exist");
@@ -328,10 +336,7 @@ describe('OTLPLogExporter - node with proto over http', () => {
       let buff = Buffer.from('');
       fakeRequest.on('end', () => {
         const unzippedBuff = zlib.gunzipSync(buff);
-        const ExportLogsServiceRequestProto = getExportRequestProto(
-          ServiceClientType.LOGS
-        );
-        const data = ExportLogsServiceRequestProto.decode(unzippedBuff);
+        const data = exportRequestServiceProto.decode(unzippedBuff);
         const json = data?.toJSON() as IExportLogsServiceRequest;
         const log1 = json.resourceLogs?.[0].scopeLogs?.[0].logRecords?.[0];
         assert.ok(typeof log1 !== 'undefined', "log doesn't exist");

experimental/packages/exporter-logs-otlp-proto/tsconfig.esm.json

@@ -27,9 +27,6 @@
     {
       "path": "../otlp-exporter-base"
     },
-    {
-      "path": "../otlp-proto-exporter-base"
-    },
     {
       "path": "../otlp-transformer"
     },

experimental/packages/exporter-logs-otlp-proto/tsconfig.esnext.json

@@ -27,9 +27,6 @@
     {
       "path": "../otlp-exporter-base"
     },
-    {
-      "path": "../otlp-proto-exporter-base"
-    },
     {
       "path": "../otlp-transformer"
     },

experimental/packages/exporter-logs-otlp-proto/tsconfig.json

@@ -27,9 +27,6 @@
     {
       "path": "../otlp-exporter-base"
     },
-    {
-      "path": "../otlp-proto-exporter-base"
-    },
     {
       "path": "../otlp-transformer"
     },

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

@@ -23,7 +23,6 @@ import {
   DEFAULT_COLLECTOR_URL,
 } from '@opentelemetry/otlp-grpc-exporter-base';
 import {
-  IExportTraceServiceRequest,
   IExportTraceServiceResponse,
   ProtobufTraceSerializer,
 } from '@opentelemetry/otlp-transformer';
@@ -37,11 +36,7 @@ const USER_AGENT = {
  * OTLP Trace Exporter for Node
  */
 export class OTLPTraceExporter
-  extends OTLPGRPCExporterNodeBase<
-    ReadableSpan,
-    IExportTraceServiceRequest,
-    IExportTraceServiceResponse
-  >
+  extends OTLPGRPCExporterNodeBase<ReadableSpan, IExportTraceServiceResponse>
   implements SpanExporter
 {
   constructor(config: OTLPGRPCExporterConfigNode = {}) {

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

@@ -23,8 +23,8 @@ import {
   OTLPExporterBrowserBase,
 } from '@opentelemetry/otlp-exporter-base';
 import {
-  createExportTraceServiceRequest,
-  IExportTraceServiceRequest,
+  IExportTraceServiceResponse,
+  JsonTraceSerializer,
 } from '@opentelemetry/otlp-transformer';
 
 const DEFAULT_COLLECTOR_RESOURCE_PATH = 'v1/traces';
@@ -34,24 +34,18 @@ const DEFAULT_COLLECTOR_URL = `http://localhost:4318/${DEFAULT_COLLECTOR_RESOURC
  * Collector Trace Exporter for Web
  */
 export class OTLPTraceExporter
-  extends OTLPExporterBrowserBase<ReadableSpan, IExportTraceServiceRequest>
+  extends OTLPExporterBrowserBase<ReadableSpan, IExportTraceServiceResponse>
   implements SpanExporter
 {
   constructor(config: OTLPExporterConfigBase = {}) {
-    super(config);
+    super(config, JsonTraceSerializer, 'application/json');
     this._headers = Object.assign(
       this._headers,
       baggageUtils.parseKeyPairsIntoRecord(
         getEnv().OTEL_EXPORTER_OTLP_TRACES_HEADERS
       )
     );
   }
-  convert(spans: ReadableSpan[]): IExportTraceServiceRequest {
-    return createExportTraceServiceRequest(spans, {
-      useHex: true,
-      useLongBits: false,
-    });
-  }
 
   getDefaultUrl(config: OTLPExporterConfigBase): string {
     return typeof config.url === 'string'

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

@@ -25,10 +25,7 @@ import {
   appendResourcePathToUrl,
   appendRootPathToUrlIfNeeded,
 } from '@opentelemetry/otlp-exporter-base';
-import {
-  IExportTraceServiceRequest,
-  IExportTraceServiceResponse,
-} from '@opentelemetry/otlp-transformer';
+import { IExportTraceServiceResponse } from '@opentelemetry/otlp-transformer';
 import { VERSION } from '../../version';
 import { JsonTraceSerializer } from '@opentelemetry/otlp-transformer';
 
@@ -42,11 +39,7 @@ const USER_AGENT = {
  * Collector Trace Exporter for Node
  */
 export class OTLPTraceExporter
-  extends OTLPExporterNodeBase<
-    ReadableSpan,
-    IExportTraceServiceRequest,
-    IExportTraceServiceResponse
-  >
+  extends OTLPExporterNodeBase<ReadableSpan, IExportTraceServiceResponse>
   implements SpanExporter
 {
   constructor(config: OTLPExporterNodeConfigBase = {}) {

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

@@ -195,7 +195,10 @@ describe('OTLPTraceExporter - web', () => {
           assert.strictEqual(request.url, 'http://foo.bar.com');
 
           const body = request.requestBody;
-          const json = JSON.parse(body) as IExportTraceServiceRequest;
+          const decoder = new TextDecoder();
+          const json = JSON.parse(
+            decoder.decode(body)
+          ) as IExportTraceServiceRequest;
           const span1 = json.resourceSpans?.[0].scopeSpans?.[0].spans?.[0];
 
           assert.ok(typeof span1 !== 'undefined', "span doesn't exist");

experimental/packages/exporter-trace-otlp-proto/package.json

@@ -95,7 +95,6 @@
   "dependencies": {
     "@opentelemetry/core": "1.24.0",
     "@opentelemetry/otlp-exporter-base": "0.51.0",
-    "@opentelemetry/otlp-proto-exporter-base": "0.51.0",
     "@opentelemetry/otlp-transformer": "0.51.0",
     "@opentelemetry/resources": "1.24.0",
     "@opentelemetry/sdk-trace-base": "1.24.0"