Logs/events API

.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

CHANGELOG.md

@@ -22,6 +22,7 @@ All notable changes to this project will be documented in this file.
 * feat(sdk-trace-base): move Sampler declaration into sdk-trace-base [#3088](https://github.com/open-telemetry/opentelemetry-js/pull/3088) @legendecas
 * fix(grpc-instrumentation): added grpc attributes in instrumentation [#3127](https://github.com/open-telemetry/opentelemetry-js/pull/3127) @andrewzenkov
 * feat: support latest `@opentelemetry/api` [#3177](https://github.com/open-telemetry/opentelemetry-js/pull/3177) @dyladan
+* feat: add Logs API @mkuba
 
 ### :bug: (Bug Fix)
 

experimental/packages/api-logs/.eslintignore

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

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')
+}

experimental/packages/api-logs/LICENSE

@@ -0,0 +1,201 @@
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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: <https://opentelemetry.io/>
+- For more about OpenTelemetry JavaScript: <https://github.com/open-telemetry/opentelemetry-js>
+- 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

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
+  }))
+};