add Events SDK (open-telemetry#4629)

* feat(sdk-events): add Events SDK

* updated changelog

* markdown lint

* updated changelog with changes to the events API

* added missing implements

* set defaults for severityNumber and timestamp

* added OTLP exporter to example

* updated package-lock.json

* updated versions

* pinned api-logs and api-events versions

* removed getting global LoggerProvider

* updated example version

* removed unnecessary constant

* lint

* updated events example

* pinned api-logs version for logs sdk

* updated package-lock

* removed unused configuration

* added forceFlush and shutdown to EventLoggerProvider

* updated package-lock.json

* updated tsconfig files

* fixed package-lock.json

* removed shutdown method, updated example

* cleanup

* added domain to examples

* updated versions

* fix browser tests

experimental/CHANGELOG.md

@@ -73,6 +73,7 @@ All notable changes to experimental packages in this project will be documented
     * `InstrumentationBase`
     * `InstrumentationNodeModuleDefinition`
     * `InstrumentationNodeModuleFile`
+* feat(api-events): removed traceId and spanId from Event interface, added context and severityNumber [#4629](https://github.com/open-telemetry/opentelemetry-js/pull/4629)
 
 ### :rocket: (Enhancement)
 
@@ -85,6 +86,7 @@ All notable changes to experimental packages in this project will be documented
   * The value can be overwritten by
     * merging a resource containing the `service.instance.id` attribute
     * using another resource detector which writes `service.instance.id`
+* feat(sdk-events): add Events SDK [#4629](https://github.com/open-telemetry/opentelemetry-js/pull/4629)
 
 ### :bug: (Bug Fix)
 

experimental/examples/events/README.md

@@ -0,0 +1,21 @@
+## Installation
+
+```sh
+# from this directory
+npm install
+```
+
+## Run the Application
+
+```sh
+npm start
+```
+
+## Useful links
+
+- For more information on OpenTelemetry, visit: <https://opentelemetry.io/>
+- For more information on OpenTelemetry logs, visit: <https://github.com/open-telemetry/opentelemetry-js/tree/main/experimental/packages/sdk-events>
+
+## LICENSE
+
+Apache License 2.0

experimental/examples/events/index.ts

@@ -0,0 +1,55 @@
+/*
+ * 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 { DiagConsoleLogger, DiagLogLevel, diag } from '@opentelemetry/api';
+import {
+  LoggerProvider,
+  ConsoleLogRecordExporter,
+  SimpleLogRecordProcessor,
+} from '@opentelemetry/sdk-logs';
+import { events } from '@opentelemetry/api-events';
+import { EventLoggerProvider } from '@opentelemetry/sdk-events';
+
+// Optional and only needed to see the internal diagnostic logging (during development)
+diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.DEBUG);
+
+// configure global LoggerProvider
+const loggerProvider = new LoggerProvider();
+loggerProvider.addLogRecordProcessor(
+  new SimpleLogRecordProcessor(new ConsoleLogRecordExporter())
+);
+
+// uncomment to use OTLP exporter
+// import { OTLPLogExporter } from '@opentelemetry/exporter-logs-otlp-http';
+// const logExporter = new OTLPLogExporter();
+// loggerProvider.addLogRecordProcessor(new SimpleLogRecordProcessor(logExporter));
+
+// configure global EventLoggerProvider
+const eventLoggerProvider = new EventLoggerProvider(loggerProvider);
+events.setGlobalEventLoggerProvider(eventLoggerProvider);
+
+// emit a log record
+const eventLogger = events.getEventLogger('example');
+eventLogger.emit({
+  name: 'my-domain.my-event',
+  data: {
+    a: 1,
+    b: 'hello',
+    c: {
+      d: 123
+    }
+  }
+});

experimental/examples/events/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "events-example",
+  "version": "0.51.1",
+  "private": true,
+  "scripts": {
+    "start": "ts-node index.ts"
+  },
+  "dependencies": {
+    "@opentelemetry/api": "^1.7.0",
+    "@opentelemetry/api-logs": "0.51.1",
+    "@opentelemetry/sdk-logs": "0.51.1",
+    "@opentelemetry/api-events": "0.51.1",
+    "@opentelemetry/sdk-events": "0.51.1",
+    "@opentelemetry/exporter-logs-otlp-http": "0.51.1"
+  },
+  "devDependencies": {
+    "@types/node": "18.6.5",
+    "ts-node": "^10.9.1"
+  }
+}

experimental/examples/events/tsconfig.json

@@ -0,0 +1,28 @@
+{
+  "extends": "../../../tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "build",
+    "rootDir": "."
+  },
+  "include": ["./index.ts"],
+  "references": [
+    {
+      "path": "../../../api"
+    },
+    {
+      "path": "../../../experimental/packages/api-events"
+    },
+    {
+      "path": "../../../experimental/packages/api-logs"
+    },
+    {
+      "path": "../../../experimental/packages/sdk-events"
+    },
+    {
+      "path": "../../../experimental/packages/sdk-logs"
+    },
+    {
+      "path": "../../../experimental/packages/exporter-logs-otlp-http"
+    }
+  ]
+}

experimental/examples/logs/README.md

@@ -7,8 +7,6 @@ npm install
 
 ## Run the Application
 
-LogRecord
-
 ```sh
 npm start
 ```

experimental/packages/api-events/package.json

@@ -14,20 +14,20 @@
   },
   "repository": "open-telemetry/opentelemetry-js",
   "scripts": {
-    "prepublishOnly": "npm run compile",
-    "compile": "tsc --build tsconfig.json tsconfig.esm.json tsconfig.esnext.json",
+    "build": "npm run compile",
     "clean": "tsc --build --clean tsconfig.json tsconfig.esm.json tsconfig.esnext.json",
-    "test": "nyc ts-mocha -p tsconfig.json test/**/*.test.ts",
-    "test:browser": "karma start --single-run",
     "codecov": "nyc report --reporter=json && codecov -f coverage/*.json -p ../../../",
     "codecov:browser": "nyc report --reporter=json && codecov -f coverage/*.json -p ../../../",
-    "build": "npm run compile",
+    "compile": "tsc --build tsconfig.json tsconfig.esm.json tsconfig.esnext.json",
     "lint": "eslint . --ext .ts",
     "lint:fix": "eslint . --ext .ts --fix",
-    "version": "node ../../../scripts/version-update.js",
-    "watch": "tsc --build --watch tsconfig.json tsconfig.esm.json tsconfig.esnext.json",
+    "prepublishOnly": "npm run compile",
     "precompile": "cross-var lerna run version --scope $npm_package_name --include-dependencies",
     "prewatch": "node ../../../scripts/version-update.js",
+    "test": "nyc ts-mocha -p tsconfig.json test/**/*.test.ts",
+    "test:browser": "karma start --single-run",
+    "version": "node ../../../scripts/version-update.js",
+    "watch": "tsc --build --watch tsconfig.json tsconfig.esm.json tsconfig.esnext.json",
     "align-api-deps": "node ../../../scripts/align-api-deps.js"
   },
   "keywords": [

experimental/packages/api-events/src/types/Event.ts

@@ -14,14 +14,14 @@
  * limitations under the License.
  */
 
-import { Attributes } from '@opentelemetry/api';
-import { AnyValue } from '@opentelemetry/api-logs';
+import { Attributes, Context, TimeInput } from '@opentelemetry/api';
+import { AnyValue, SeverityNumber } from '@opentelemetry/api-logs';
 
 export interface Event {
   /**
    * The time when the event occurred as UNIX Epoch time in nanoseconds.
    */
-  timestamp?: number;
+  timestamp?: TimeInput;
 
   /**
    * The name of the event.
@@ -40,17 +40,12 @@ export interface Event {
   attributes?: Attributes;
 
   /**
-   * 8 least significant bits are the trace flags as defined in W3C Trace Context specification.
+   * Numerical value of the severity.
    */
-  traceFlags?: number;
+  severityNumber?: SeverityNumber;
 
   /**
-   * A unique identifier for a trace.
+   * The Context associated with the Event.
    */
-  traceId?: string;
-
-  /**
-   * A unique identifier for a span within a trace.
-   */
-  spanId?: string;
+  context?: Context;
 }

experimental/packages/sdk-events/.eslintignore

@@ -0,0 +1 @@
+build

experimental/packages/sdk-events/.eslintrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+  env: {
+    mocha: true,
+    node: true,
+  },
+  ...require('../../../eslint.base.js'),
+};

experimental/packages/sdk-events/.npmignore

@@ -0,0 +1,4 @@
+/bin
+/coverage
+/doc
+/test