fix(exporter-logs-otlp-http): set useHex to true

experimental/CHANGELOG.md

@@ -14,6 +14,8 @@ All notable changes to experimental packages in this project will be documented
 
 ### :bug: (Bug Fix)
 
+* fix(exporter-logs-otlp-http): set useHex to true [#3875](https://github.com/open-telemetry/opentelemetry-js/pull/3875) @Nico385412
+
 ### :books: (Refine Doc)
 
 ### :house: (Internal)

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

@@ -73,6 +73,7 @@
   "devDependencies": {
     "@babel/core": "7.22.5",
     "@opentelemetry/api-logs": "0.40.0",
+    "@opentelemetry/resources": "1.14.0",
     "@types/mocha": "10.0.1",
     "@types/node": "18.6.5",
     "@types/sinon": "10.0.15",

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

@@ -48,7 +48,7 @@ export class OTLPLogExporter
   }
 
   convert(logRecords: ReadableLogRecord[]): IExportLogsServiceRequest {
-    return createExportLogsServiceRequest(logRecords);
+    return createExportLogsServiceRequest(logRecords, true);
   }
 
   getDefaultUrl(config: OTLPExporterConfigBase): string {

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

@@ -48,7 +48,7 @@ export class OTLPLogExporter
   }
 
   convert(logRecords: ReadableLogRecord[]): IExportLogsServiceRequest {
-    return createExportLogsServiceRequest(logRecords);
+    return createExportLogsServiceRequest(logRecords, true);
   }
 
   getDefaultUrl(config: OTLPExporterNodeConfigBase): string {

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

@@ -13,15 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 import * as assert from 'assert';
 import * as sinon from 'sinon';
 
 import * as Config from '../../src/platform/config';
 import { OTLPLogExporter } from '../../src/platform/browser';
+import { OTLPExporterConfigBase } from '@opentelemetry/otlp-exporter-base';
+import { ReadableLogRecord } from '@opentelemetry/sdk-logs';
+import { mockedReadableLogRecord } from '../logHelper';
+import { ExportResultCode } from '@opentelemetry/core';
 
 describe('OTLPLogExporter', () => {
   let envSource: Record<string, any>;
+  let collectorExporter: OTLPLogExporter;
+  let collectorExporterConfig: OTLPExporterConfigBase;
+
+  afterEach(() => {
+    sinon.restore();
+  });
 
   if (typeof process === 'undefined') {
     envSource = globalThis as unknown as Record<string, any>;
@@ -61,4 +70,79 @@ describe('OTLPLogExporter', () => {
       assert.strictEqual(getDefaultUrl.callCount, 2);
     });
   });
+
+  describe('export - common', () => {
+    let spySend: any;
+    beforeEach(() => {
+      spySend = sinon.stub(OTLPLogExporter.prototype, 'send');
+      collectorExporter = new OTLPLogExporter(collectorExporterConfig);
+    });
+
+    it('should export spans as otlpTypes.Spans', done => {
+      const logs: ReadableLogRecord[] = [];
+      logs.push(Object.assign({}, mockedReadableLogRecord));
+
+      collectorExporter.export(logs, () => {});
+      setTimeout(() => {
+        const log = spySend.args[0][0][0] as ReadableLogRecord;
+        assert.deepStrictEqual(logs[0], log);
+        done();
+      });
+      assert.strictEqual(spySend.callCount, 1);
+    });
+
+    describe('when exporter is shutdown', () => {
+      it(
+        'should not export anything but return callback with code' +
+          ' "FailedNotRetryable"',
+        async () => {
+          const spans: ReadableLogRecord[] = [];
+          spans.push(Object.assign({}, mockedReadableLogRecord));
+          await collectorExporter.shutdown();
+          spySend.resetHistory();
+
+          const callbackSpy = sinon.spy();
+          collectorExporter.export(spans, callbackSpy);
+          const returnCode = callbackSpy.args[0][0];
+
+          assert.strictEqual(
+            returnCode.code,
+            ExportResultCode.FAILED,
+            'return value is wrong'
+          );
+          assert.strictEqual(spySend.callCount, 0, 'should not call send');
+        }
+      );
+    });
+    describe('when an error occurs', () => {
+      it('should return failed export result', done => {
+        const spans: ReadableLogRecord[] = [];
+        spans.push(Object.assign({}, mockedReadableLogRecord));
+        spySend.throws({
+          code: 100,
+          details: 'Test error',
+          metadata: {},
+          message: 'Non-retryable',
+          stack: 'Stack',
+        });
+        const callbackSpy = sinon.spy();
+        collectorExporter.export(spans, callbackSpy);
+        setTimeout(() => {
+          const returnCode = callbackSpy.args[0][0];
+          assert.strictEqual(
+            returnCode.code,
+            ExportResultCode.FAILED,
+            'return value is wrong'
+          );
+          assert.strictEqual(
+            returnCode.error.message,
+            'Non-retryable',
+            'return error message is wrong'
+          );
+          assert.strictEqual(spySend.callCount, 1, 'should call send');
+          done();
+        });
+      });
+    });
+  });
 });

experimental/packages/exporter-logs-otlp-http/test/logHelper.ts

@@ -0,0 +1,166 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { HrTime, TraceFlags } from '@opentelemetry/api';
+import { SeverityNumber } from '@opentelemetry/api-logs';
+import { Resource } from '@opentelemetry/resources';
+import * as assert from 'assert';
+import { VERSION } from '@opentelemetry/core';
+import {
+  IAnyValue,
+  IExportLogsServiceRequest,
+  IKeyValue,
+  ILogRecord,
+  IResource,
+} from '@opentelemetry/otlp-transformer';
+import { ReadableLogRecord } from '@opentelemetry/sdk-logs';
+
+export const mockedReadableLogRecord: ReadableLogRecord = {
+  resource: Resource.default().merge(
+    new Resource({
+      'resource-attribute': 'some resource-attr value',
+    })
+  ),
+  instrumentationScope: {
+    name: 'scope_name_1',
+    version: '0.1.0',
+    schemaUrl: 'http://url.to.schema',
+  },
+  hrTime: [1680253513, 123241635] as HrTime,
+  hrTimeObserved: [1680253513, 123241635] as HrTime,
+  attributes: {
+    'some-attribute': 'some attribute value',
+  },
+  severityNumber: SeverityNumber.ERROR,
+  severityText: 'error',
+  body: 'some_log_body',
+  spanContext: {
+    traceFlags: TraceFlags.SAMPLED,
+    traceId: '1f1008dc8e270e85c40a0d7c3939b278',
+    spanId: '5e107261f64fa53e',
+  },
+};
+export function ensureExportedAttributesAreCorrect(attributes: IKeyValue[]) {
+  assert.deepStrictEqual(
+    attributes,
+    [
+      {
+        key: 'some-attribute',
+        value: {
+          stringValue: 'some attribute value',
+        },
+      },
+    ],
+    'exported attributes are incorrect'
+  );
+}
+
+export function ensureExportedBodyIsCorrect(body?: IAnyValue) {
+  assert.deepStrictEqual(
+    body,
+    { stringValue: 'some_log_body' },
+    'exported attributes are incorrect'
+  );
+}
+
+export function ensureExportedLogRecordIsCorrect(logRecord: ILogRecord) {
+  ensureExportedBodyIsCorrect(logRecord.body);
+  ensureExportedAttributesAreCorrect(logRecord.attributes);
+  assert.strictEqual(
+    logRecord.timeUnixNano,
+    1680253513123241700,
+    'timeUnixNano is wrong'
+  );
+  assert.strictEqual(
+    logRecord.observedTimeUnixNano,
+    1680253513123241700,
+    'observedTimeUnixNano is wrong'
+  );
+  assert.strictEqual(
+    logRecord.severityNumber,
+    SeverityNumber.ERROR,
+    'severityNumber is wrong'
+  );
+  assert.strictEqual(logRecord.severityText, 'error', 'severityText is wrong');
+  assert.strictEqual(
+    logRecord.droppedAttributesCount,
+    0,
+    'droppedAttributesCount is wrong'
+  );
+  assert.strictEqual(logRecord.flags, TraceFlags.SAMPLED, 'flags is wrong');
+}
+
+export function ensureResourceIsCorrect(resource: IResource) {
+  assert.deepStrictEqual(resource, {
+    attributes: [
+      {
+        key: 'service.name',
+        value: {
+          stringValue: `unknown_service:${process.argv0}`,
+          value: 'stringValue',
+        },
+      },
+      {
+        key: 'telemetry.sdk.language',
+        value: {
+          stringValue: 'nodejs',
+          value: 'stringValue',
+        },
+      },
+      {
+        key: 'telemetry.sdk.name',
+        value: {
+          stringValue: 'opentelemetry',
+          value: 'stringValue',
+        },
+      },
+      {
+        key: 'telemetry.sdk.version',
+        value: {
+          stringValue: VERSION,
+          value: 'stringValue',
+        },
+      },
+      {
+        key: 'resource-attribute',
+        value: {
+          stringValue: 'some resource-attr value',
+          value: 'stringValue',
+        },
+      },
+    ],
+    droppedAttributesCount: 0,
+  });
+}
+
+export function ensureExportLogsServiceRequestIsSet(
+  json: IExportLogsServiceRequest
+) {
+  const resourceLogs = json.resourceLogs;
+  assert.strictEqual(resourceLogs?.length, 1, 'resourceLogs is missing');
+
+  const resource = resourceLogs?.[0].resource;
+  assert.ok(resource, 'resource is missing');
+
+  const scopeLogs = resourceLogs?.[0].scopeLogs;
+  assert.strictEqual(scopeLogs?.length, 1, 'scopeLogs is missing');
+
+  const scope = scopeLogs?.[0].scope;
+  assert.ok(scope, 'scope is missing');
+
+  const logRecords = scopeLogs?.[0].logRecords;
+  assert.strictEqual(logRecords?.length, 1, 'logs are missing');
+}