diff --git a/.github/workflows/w3c-integration-test.yml b/.github/workflows/w3c-integration-test.yml
index c2be63b9df..971ea6ee7f 100644
--- a/.github/workflows/w3c-integration-test.yml
+++ b/.github/workflows/w3c-integration-test.yml
@@ -13,6 +13,10 @@ jobs:
- name: Checkout 🛎️
uses: actions/checkout@v3
+ - uses: actions/setup-node@v3
+ with:
+ node-version: '16'
+
- name: restore lock files
uses: actions/cache@master # must use unreleased master to cache multiple paths
id: cache
diff --git a/experimental/CHANGELOG.md b/experimental/CHANGELOG.md
index 377e37c9fa..9c3307b0b4 100644
--- a/experimental/CHANGELOG.md
+++ b/experimental/CHANGELOG.md
@@ -42,6 +42,7 @@ All notable changes to experimental packages in this project will be documented
### :rocket: (Enhancement)
* Add `resourceDetectors` option to `NodeSDK` [#3210](https://github.com/open-telemetry/opentelemetry-js/issues/3210)
+* feat: add Logs API @mkuba [#3117](https://github.com/open-telemetry/opentelemetry-js/pull/3117)
### :bug: (Bug Fix)
diff --git a/experimental/packages/api-logs/.eslintignore b/experimental/packages/api-logs/.eslintignore
new file mode 100644
index 0000000000..378eac25d3
--- /dev/null
+++ b/experimental/packages/api-logs/.eslintignore
@@ -0,0 +1 @@
+build
diff --git a/experimental/packages/api-logs/.eslintrc.js b/experimental/packages/api-logs/.eslintrc.js
new file mode 100644
index 0000000000..7654abb6ac
--- /dev/null
+++ b/experimental/packages/api-logs/.eslintrc.js
@@ -0,0 +1,8 @@
+module.exports = {
+ "env": {
+ "mocha": true,
+ "commonjs": true,
+ "shared-node-browser": true
+ },
+ ...require('../../../eslint.config.js')
+}
diff --git a/experimental/packages/api-logs/LICENSE b/experimental/packages/api-logs/LICENSE
new file mode 100644
index 0000000000..261eeb9e9f
--- /dev/null
+++ b/experimental/packages/api-logs/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+ 7. Disclaimer of Warranty. Unless required by applicable law or
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+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
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diff --git a/experimental/packages/api-logs/README.md b/experimental/packages/api-logs/README.md
new file mode 100644
index 0000000000..d940cfc0cc
--- /dev/null
+++ b/experimental/packages/api-logs/README.md
@@ -0,0 +1,66 @@
+# OpenTelemetry API for JavaScript
+
+[![NPM Published Version][npm-img]][npm-url]
+[![Apache License][license-image]][license-image]
+
+This package provides everything needed to interact with the unstable OpenTelemetry Logs API, including all TypeScript interfaces, enums, and no-op implementations. It is intended for use both on the server and in the browser.
+
+## Beta Software - Use at your own risk
+
+The logs API is considered alpha software and there is no guarantee of stability or long-term support. When the API is stabilized, it will be made available and supported long-term in the `@opentelemetry/api` package and this package will be deprecated.
+
+## Quick Start
+
+Purposefully left blank until SDK is available.
+
+## Version Compatibility
+
+Because the npm installer and node module resolution algorithm could potentially allow two or more copies of any given package to exist within the same `node_modules` structure, the OpenTelemetry API takes advantage of a variable on the `global` object to store the global API. When an API method in the API package is called, it checks if this `global` API exists and proxies calls to it if and only if it is a compatible API version. This means if a package has a dependency on an OpenTelemetry API version which is not compatible with the API used by the end user, the package will receive a no-op implementation of the API.
+
+## Advanced Use
+
+### API Methods
+
+If you are writing an instrumentation library, or prefer to call the API methods directly rather than using the `register` method on the Tracer/Meter/Logger Provider, OpenTelemetry provides direct access to the underlying API methods through the `@opentelemetry/api-logs` package. API entry points are defined as global singleton objects `trace`, `metrics`, `logs`, `propagation`, and `context` which contain methods used to initialize SDK implementations and acquire resources from the API.
+
+- [Logs API Documentation][logs-api-docs]
+
+```javascript
+const api = require("@opentelemetry/api-logs");
+
+/* A specific implementation of LoggerProvider comes from an SDK */
+const loggerProvider = createLoggerProvider();
+
+/* Initialize LoggerProvider */
+api.logs.setGlobalLoggerProvider(loggerProvider);
+/* returns loggerProvider (no-op if a working provider has not been initialized) */
+api.logs.getLoggerProvider();
+/* returns a logger from the registered global logger provider (no-op if a working provider has not been initialized) */
+const logger = api.logs.getLogger(name, version);
+
+// logging an event in an instrumentation library
+logger.emitEvent({ name: 'event-name', domain: 'event-domain' });
+
+// logging an event in a log appender
+logger.emitLogRecord({ severityNumber: 1, body: 'log data' });
+```
+
+## Useful links
+
+- For more information on OpenTelemetry, visit:
+- For more about OpenTelemetry JavaScript:
+- For help or feedback on this project, join us in [GitHub Discussions][discussions-url]
+
+## License
+
+Apache 2.0 - See [LICENSE][license-url] for more information.
+
+[discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
+[license-url]: https://github.com/open-telemetry/opentelemetry-js/blob/main/LICENSE
+[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
+[npm-url]: https://www.npmjs.com/package/@opentelemetry/api-metrics
+[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Fapi-metrics.svg
+
+[metrics-api-docs]: https://open-telemetry.github.io/opentelemetry-js/modules/_opentelemetry_api_metrics.html
+
+[other-tracing-backends]: https://github.com/open-telemetry/opentelemetry-js#trace-exporters
diff --git a/experimental/packages/api-logs/karma.conf.js b/experimental/packages/api-logs/karma.conf.js
new file mode 100644
index 0000000000..6174839d65
--- /dev/null
+++ b/experimental/packages/api-logs/karma.conf.js
@@ -0,0 +1,24 @@
+/*!
+ * 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
+ *
+ * http://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.
+ */
+
+const karmaWebpackConfig = require('../../../karma.webpack');
+const karmaBaseConfig = require('../../../karma.base');
+
+module.exports = (config) => {
+ config.set(Object.assign({}, karmaBaseConfig, {
+ webpack: karmaWebpackConfig
+ }))
+};
diff --git a/experimental/packages/api-logs/package.json b/experimental/packages/api-logs/package.json
new file mode 100644
index 0000000000..91a2ac61f0
--- /dev/null
+++ b/experimental/packages/api-logs/package.json
@@ -0,0 +1,87 @@
+{
+ "name": "@opentelemetry/api-logs",
+ "version": "0.32.0",
+ "description": "Public logs API for OpenTelemetry",
+ "main": "build/src/index.js",
+ "module": "build/esm/index.js",
+ "esnext": "build/esnext/index.js",
+ "types": "build/src/index.d.ts",
+ "browser": {
+ "./src/platform/index.ts": "./src/platform/browser/index.ts",
+ "./build/esm/platform/index.js": "./build/esm/platform/browser/index.js",
+ "./build/esnext/platform/index.js": "./build/esnext/platform/browser/index.js",
+ "./build/src/platform/index.js": "./build/src/platform/browser/index.js"
+ },
+ "repository": "open-telemetry/opentelemetry-js",
+ "scripts": {
+ "prepublishOnly": "npm run compile",
+ "compile": "tsc --build tsconfig.all.json",
+ "clean": "tsc --build --clean tsconfig.all.json",
+ "test": "nyc ts-mocha -p tsconfig.json test/**/*.test.ts",
+ "test:browser": "nyc 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",
+ "lint": "eslint . --ext .ts",
+ "lint:fix": "eslint . --ext .ts --fix",
+ "version": "node ../../../scripts/version-update.js",
+ "watch": "tsc --build --watch tsconfig.all.json",
+ "precompile": "lerna run version --scope $(npm pkg get name) --include-dependencies",
+ "prewatch": "node ../../../scripts/version-update.js"
+ },
+ "keywords": [
+ "opentelemetry",
+ "nodejs",
+ "browser",
+ "profiling",
+ "logs",
+ "events",
+ "stats",
+ "monitoring"
+ ],
+ "author": "OpenTelemetry Authors",
+ "license": "Apache-2.0",
+ "engines": {
+ "node": ">=14"
+ },
+ "files": [
+ "build/esm/**/*.js",
+ "build/esm/**/*.js.map",
+ "build/esm/**/*.d.ts",
+ "build/esnext/**/*.js",
+ "build/esnext/**/*.js.map",
+ "build/esnext/**/*.d.ts",
+ "build/src/**/*.js",
+ "build/src/**/*.js.map",
+ "build/src/**/*.d.ts",
+ "doc",
+ "LICENSE",
+ "README.md"
+ ],
+ "publishConfig": {
+ "access": "public"
+ },
+ "dependencies": {
+ "@opentelemetry/api": "^1.0.0"
+ },
+ "devDependencies": {
+ "@types/mocha": "9.1.1",
+ "@types/node": "18.6.5",
+ "@types/webpack-env": "1.16.3",
+ "codecov": "3.8.3",
+ "istanbul-instrumenter-loader": "3.0.1",
+ "karma": "6.3.16",
+ "karma-chrome-launcher": "3.1.0",
+ "karma-coverage-istanbul-reporter": "3.0.3",
+ "karma-mocha": "2.0.1",
+ "karma-spec-reporter": "0.0.32",
+ "karma-webpack": "4.0.2",
+ "mocha": "10.0.0",
+ "nyc": "15.1.0",
+ "ts-loader": "8.4.0",
+ "ts-mocha": "10.0.0",
+ "typescript": "4.4.4",
+ "webpack": "4.46.0"
+ },
+ "homepage": "https://github.com/open-telemetry/opentelemetry-js/tree/main/experimental/packages/api-logs"
+}
diff --git a/experimental/packages/api-logs/src/NoopLogger.ts b/experimental/packages/api-logs/src/NoopLogger.ts
new file mode 100644
index 0000000000..3f2227154c
--- /dev/null
+++ b/experimental/packages/api-logs/src/NoopLogger.ts
@@ -0,0 +1,24 @@
+/*
+ * 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 { Logger } from './types/Logger';
+import { LogEvent } from './types/LogEvent';
+import { LogRecord } from './types/LogRecord';
+
+export class NoopLogger implements Logger {
+ emitLogRecord(_logRecord: LogRecord): void {}
+ emitEvent(_event: LogEvent): void {}
+}
diff --git a/experimental/packages/api-logs/src/NoopLoggerProvider.ts b/experimental/packages/api-logs/src/NoopLoggerProvider.ts
new file mode 100644
index 0000000000..5c69e5a7bd
--- /dev/null
+++ b/experimental/packages/api-logs/src/NoopLoggerProvider.ts
@@ -0,0 +1,28 @@
+/*
+ * 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 { LoggerProvider } from './types/LoggerProvider';
+import { Logger } from './types/Logger';
+import { LoggerOptions } from './types/LoggerOptions';
+import { NoopLogger } from './NoopLogger';
+
+export class NoopLoggerProvider implements LoggerProvider {
+ getLogger(_name: string, _version?: string | undefined, _options?: LoggerOptions | undefined): Logger {
+ return new NoopLogger();
+ }
+}
+
+export const NOOP_LOGGER_PROVIDER = new NoopLoggerProvider();
diff --git a/experimental/packages/api-logs/src/api/logs.ts b/experimental/packages/api-logs/src/api/logs.ts
new file mode 100644
index 0000000000..0f9388648a
--- /dev/null
+++ b/experimental/packages/api-logs/src/api/logs.ts
@@ -0,0 +1,80 @@
+/*
+ * 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 {
+ API_BACKWARDS_COMPATIBILITY_VERSION,
+ GLOBAL_LOGS_API_KEY,
+ _global,
+ makeGetter
+} from '../internal/global-utils';
+import { LoggerProvider } from '../types/LoggerProvider';
+import { NOOP_LOGGER_PROVIDER } from '../NoopLoggerProvider';
+import { Logger } from '../types/Logger';
+import { LoggerOptions } from '../types/LoggerOptions';
+
+export class LogsAPI {
+ private static _instance?: LogsAPI;
+
+ private constructor() {}
+
+ public static getInstance(): LogsAPI {
+ if (!this._instance) {
+ this._instance = new LogsAPI();
+ }
+
+ return this._instance;
+ }
+
+ public setGlobalLoggerProvider(provider: LoggerProvider): LoggerProvider {
+ if (_global[GLOBAL_LOGS_API_KEY]) {
+ return this.getLoggerProvider();
+ }
+
+ _global[GLOBAL_LOGS_API_KEY] = makeGetter(
+ API_BACKWARDS_COMPATIBILITY_VERSION,
+ provider,
+ NOOP_LOGGER_PROVIDER
+ );
+
+ return provider;
+ }
+
+ /**
+ * Returns the global logger provider.
+ *
+ * @returns LoggerProvider
+ */
+ public getLoggerProvider(): LoggerProvider {
+ return (
+ _global[GLOBAL_LOGS_API_KEY]?.(API_BACKWARDS_COMPATIBILITY_VERSION) ??
+ NOOP_LOGGER_PROVIDER
+ );
+ }
+
+ /**
+ * Returns a logger from the global logger provider.
+ *
+ * @returns Logger
+ */
+ public getLogger(name: string, version?: string, options?: LoggerOptions): Logger {
+ return this.getLoggerProvider().getLogger(name, version, options);
+ }
+
+ /** Remove the global logger provider */
+ public disable(): void {
+ delete _global[GLOBAL_LOGS_API_KEY];
+ }
+}
diff --git a/experimental/packages/api-logs/src/index.ts b/experimental/packages/api-logs/src/index.ts
new file mode 100644
index 0000000000..cf22a2e5eb
--- /dev/null
+++ b/experimental/packages/api-logs/src/index.ts
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+export * from './types/Logger';
+export * from './types/LoggerProvider';
+export * from './types/LogRecord';
+export * from './types/LogEvent';
+export * from './types/LoggerOptions';
+
+import { LogsAPI } from './api/logs';
+export const logs = LogsAPI.getInstance();
diff --git a/experimental/packages/api-logs/src/internal/global-utils.ts b/experimental/packages/api-logs/src/internal/global-utils.ts
new file mode 100644
index 0000000000..705139aeda
--- /dev/null
+++ b/experimental/packages/api-logs/src/internal/global-utils.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 { LoggerProvider } from '../types/LoggerProvider';
+import { _globalThis } from '../platform';
+
+export const GLOBAL_LOGS_API_KEY = Symbol.for(
+ 'io.opentelemetry.js.api.logs'
+);
+
+type Get = (version: number) => T;
+type OtelGlobal = Partial<{
+ [GLOBAL_LOGS_API_KEY]: Get;
+}>;
+
+export const _global = _globalThis as OtelGlobal;
+
+/**
+ * Make a function which accepts a version integer and returns the instance of an API if the version
+ * is compatible, or a fallback version (usually NOOP) if it is not.
+ *
+ * @param requiredVersion Backwards compatibility version which is required to return the instance
+ * @param instance Instance which should be returned if the required version is compatible
+ * @param fallback Fallback instance, usually NOOP, which will be returned if the required version is not compatible
+ */
+export function makeGetter(
+ requiredVersion: number,
+ instance: T,
+ fallback: T
+): Get {
+ return (version: number): T =>
+ version === requiredVersion ? instance : fallback;
+}
+
+/**
+ * A number which should be incremented each time a backwards incompatible
+ * change is made to the API. This number is used when an API package
+ * attempts to access the global API to ensure it is getting a compatible
+ * version. If the global API is not compatible with the API package
+ * attempting to get it, a NOOP API implementation will be returned.
+ */
+export const API_BACKWARDS_COMPATIBILITY_VERSION = 1;
diff --git a/experimental/packages/api-logs/src/platform/browser/globalThis.ts b/experimental/packages/api-logs/src/platform/browser/globalThis.ts
new file mode 100644
index 0000000000..1dece570f3
--- /dev/null
+++ b/experimental/packages/api-logs/src/platform/browser/globalThis.ts
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+// Updates to this file should also be replicated to @opentelemetry/api and
+// @opentelemetry/core too.
+
+/**
+ * - globalThis (New standard)
+ * - self (Will return the current window instance for supported browsers)
+ * - window (fallback for older browser implementations)
+ * - global (NodeJS implementation)
+ * -