Merge branch 'main' into aws-sdk-component-owner-trivikr

examples/express/README.md

@@ -1,6 +1,6 @@
 # Overview
 
-OpenTelemetry Express Instrumentation allows the user to automatically collect trace data and export them to the backend of choice (we can use Zipkin or Jaeger for this example), to give observability to distributed systems.
+OpenTelemetry Express Instrumentation allows the user to automatically collect trace data and export them to the backend of choice (we use Jaeger for this example), to give observability to distributed systems.
 
 This is a simple example that demonstrates tracing calls made to Express API. The example
 shows key aspects of tracing such as
@@ -17,44 +17,34 @@ shows key aspects of tracing such as
 npm install
 ```
 
-Setup [Zipkin Tracing](https://zipkin.io/pages/quickstart.html)
-or
-Setup [Jaeger Tracing](https://www.jaegertracing.io/docs/latest/getting-started/#all-in-one)
-
-## Run the Application
-
-### Zipkin
-
-Run the server:
-
-```sh
-npm run zipkin:server
+Start Jaeger in Docker for receiving tracing data (see [the Jaeger docs](https://www.jaegertracing.io/docs/2.0/getting-started/#in-docker) for more details about running Jaeger):
+
+```bash
+docker run --rm --name jaeger \
+  -p 5778:5778 \
+  -p 16686:16686 \
+  -p 4317:4317 \
+  -p 4318:4318 \
+  -p 14250:14250 \
+  -p 14268:14268 \
+  -p 9411:9411 \
+  jaegertracing/jaeger:2.0.0 \
+  --set receivers.otlp.protocols.http.endpoint=0.0.0.0:4318 \
+  --set receivers.otlp.protocols.grpc.endpoint=0.0.0.0:4317
 ```
 
-Then run the client in a separate terminal:
-
-```sh
-npm run zipkin:client
-```
-
-After a short time, the generated traces should be available in the Zipkin UI.
-Visit <http://localhost:9411/zipkin> and click the "RUN QUERY" button to view
-recent traces, then click "SHOW" on a given trace.
-
-<p align="center"><img alt="Zipkin UI with trace" src="./images/zipkin.jpg?raw=true"/></p>
-
-### Jaeger
+## Run the Application
 
 Run the server:
 
 ```sh
-npm run jaeger:server
+npm run server
 ```
 
 Then run the client in a separate terminal:
 
 ```sh
-npm run jaeger:client
+npm run client
 ```
 
 Visit the Jaeger UI at <http://localhost:16686/search>, select a service (e.g. "example-express-client"), click "Find Traces", then click on a trace to view it.

examples/express/package.json

@@ -4,10 +4,8 @@
   "version": "0.1.0",
   "description": "Example of Express integration with OpenTelemetry",
   "scripts": {
-    "zipkin:server": "cross-env EXPORTER=zipkin ts-node src/server.ts",
-    "zipkin:client": "cross-env EXPORTER=zipkin ts-node src/client.ts",
-    "jaeger:server": "cross-env EXPORTER=jaeger ts-node src/server.ts",
-    "jaeger:client": "cross-env EXPORTER=jaeger ts-node src/client.ts",
+    "server": "ts-node src/server.ts",
+    "client": "ts-node src/client.ts",
     "compile": "tsc -p ."
   },
   "repository": {
@@ -30,23 +28,21 @@
   },
   "homepage": "https://github.com/open-telemetry/opentelemetry-js-contrib/tree/main/examples/express#readme",
   "dependencies": {
-    "@opentelemetry/api": "^1.3.0",
-    "@opentelemetry/exporter-jaeger": "^1.18.1",
-    "@opentelemetry/exporter-trace-otlp-proto": "^0.48.0",
-    "@opentelemetry/exporter-zipkin": "^1.18.1",
-    "@opentelemetry/instrumentation": "^0.48.0",
-    "@opentelemetry/instrumentation-express": "^0.34.1",
-    "@opentelemetry/instrumentation-http": "^0.48.0",
-    "@opentelemetry/resources": "^1.18.1",
-    "@opentelemetry/sdk-trace-base": "^1.18.1",
-    "@opentelemetry/sdk-trace-node": "^1.18.1",
+    "@opentelemetry/api": "^1.9.0",
+    "@opentelemetry/exporter-trace-otlp-proto": "^0.54.2",
+    "@opentelemetry/instrumentation": "^0.54.2",
+    "@opentelemetry/instrumentation-express": "^0.44.0",
+    "@opentelemetry/instrumentation-http": "^0.54.2",
+    "@opentelemetry/resources": "^1.27.0",
+    "@opentelemetry/sdk-trace-base": "^1.27.0",
+    "@opentelemetry/sdk-trace-node": "^1.27.0",
     "@opentelemetry/semantic-conventions": "^1.27.0",
     "axios": "^1.6.0",
-    "cross-env": "^7.0.3",
     "express": "^4.17.1"
   },
   "devDependencies": {
     "@types/express": "^4.17.13",
+    "@types/node": "18.18.14",
     "ts-node": "^10.6.0",
     "typescript": "4.4.4"
   }

examples/express/src/tracer.ts

@@ -1,51 +1,39 @@
 'use strict';
 
-import { SpanKind, Attributes } from "@opentelemetry/api";
-
-const opentelemetry = require('@opentelemetry/api');
-
-// Not functionally required but gives some insight what happens behind the scenes
-const { diag, DiagConsoleLogger, DiagLogLevel } = opentelemetry;
-diag.setLogger(new DiagConsoleLogger(), DiagLogLevel.INFO);
-
+import { trace, SamplingDecision, SpanKind, Attributes } from '@opentelemetry/api';
 import { registerInstrumentations } from '@opentelemetry/instrumentation';
 import { NodeTracerProvider } from '@opentelemetry/sdk-trace-node';
 import { Sampler, AlwaysOnSampler, SimpleSpanProcessor } from '@opentelemetry/sdk-trace-base';
 import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-proto';
-import { ZipkinExporter } from '@opentelemetry/exporter-zipkin';
 import { Resource } from '@opentelemetry/resources';
-import { SEMRESATTRS_SERVICE_NAME, SEMATTRS_HTTP_ROUTE } from '@opentelemetry/semantic-conventions';
-
-const Exporter = (process.env.EXPORTER || '').toLowerCase().startsWith('z') ? ZipkinExporter : OTLPTraceExporter;
+import { ATTR_SERVICE_NAME, ATTR_HTTP_ROUTE } from '@opentelemetry/semantic-conventions';
 import { ExpressInstrumentation } from '@opentelemetry/instrumentation-express';
-const { HttpInstrumentation } = require('@opentelemetry/instrumentation-http');
+import { HttpInstrumentation } from '@opentelemetry/instrumentation-http';
 
 export const setupTracing = (serviceName: string) => {
   const provider = new NodeTracerProvider({
     resource: new Resource({
-      [SEMRESATTRS_SERVICE_NAME]: serviceName,
+      [ATTR_SERVICE_NAME]: serviceName,
     }),
     sampler: filterSampler(ignoreHealthCheck, new AlwaysOnSampler()),
   });
   registerInstrumentations({
     tracerProvider: provider,
     instrumentations: [
       // Express instrumentation expects HTTP layer to be instrumented
-      HttpInstrumentation,
-      ExpressInstrumentation,
+      new HttpInstrumentation(),
+      new ExpressInstrumentation(),
     ],
   });
 
-  const exporter = new Exporter({
-    serviceName,
-  });
+  const exporter = new OTLPTraceExporter({});
 
   provider.addSpanProcessor(new SimpleSpanProcessor(exporter));
 
   // Initialize the OpenTelemetry APIs to use the NodeTracerProvider bindings
   provider.register();
 
-  return opentelemetry.trace.getTracer(serviceName);
+  return trace.getTracer(serviceName);
 };
 
 type FilterFunction = (spanName: string, spanKind: SpanKind, attributes: Attributes) => boolean;
@@ -54,7 +42,7 @@ function filterSampler(filterFn: FilterFunction, parent: Sampler): Sampler {
   return {
     shouldSample(ctx, tid, spanName, spanKind, attr, links) {
       if (!filterFn(spanName, spanKind, attr)) {
-        return { decision: opentelemetry.SamplingDecision.NOT_RECORD };
+        return { decision: SamplingDecision.NOT_RECORD };
       }
       return parent.shouldSample(ctx, tid, spanName, spanKind, attr, links);
     },
@@ -65,5 +53,5 @@ function filterSampler(filterFn: FilterFunction, parent: Sampler): Sampler {
 }
 
 function ignoreHealthCheck(spanName: string, spanKind: SpanKind, attributes: Attributes) {
-  return spanKind !== opentelemetry.SpanKind.SERVER || attributes[SEMATTRS_HTTP_ROUTE] !== "/health";
+  return spanKind !== SpanKind.SERVER || attributes[ATTR_HTTP_ROUTE] !== "/health";
 }

examples/mongodb/package.json

@@ -30,21 +30,20 @@
     "url": "https://github.com/open-telemetry/opentelemetry-js-contrib/issues"
   },
   "dependencies": {
-    "@opentelemetry/api": "^1.0.0",
-    "@opentelemetry/exporter-jaeger": "^1.0.0",
-    "@opentelemetry/exporter-zipkin": "^1.0.0",
-    "@opentelemetry/instrumentation": "^0.48.0",
-    "@opentelemetry/instrumentation-http": "^0.48.0",
-    "@opentelemetry/instrumentation-mongodb": "^0.32.0",
-    "@opentelemetry/sdk-trace-node": "^1.0.0",
-    "@opentelemetry/sdk-trace-base": "^1.0.0",
+    "@opentelemetry/api": "^1.9.0",
+    "@opentelemetry/exporter-zipkin": "^1.27.0",
+    "@opentelemetry/instrumentation": "^0.54.2",
+    "@opentelemetry/instrumentation-http": "^0.54.2",
+    "@opentelemetry/instrumentation-mongodb": "^0.48.0",
+    "@opentelemetry/sdk-trace-node": "^1.27.0",
+    "@opentelemetry/sdk-trace-base": "^1.27.0",
     "@opentelemetry/semantic-conventions": "^1.27.0",
-    "mongodb": "^3.6.11"
+    "mongodb": "^6.10.0"
   },
   "homepage": "https://github.com/open-telemetry/opentelemetry-js-contrib#readme",
   "devDependencies": {
     "cross-env": "^7.0.3",
-    "ts-node": "^10.6.0",
-    "typescript": "4.4.4"
+    "ts-node": "^10.9.2",
+    "typescript": "5.6.3"
   }
 }

examples/mongodb/src/server.ts

@@ -2,17 +2,17 @@ import * as api from '@opentelemetry/api';
 
 import { setupTracing } from './tracer';
 
-setupTracing('example-mongodb-server')
+setupTracing('example-mongodb-server');
 
 import { accessDB } from './utils';
 
 import * as http from 'http';
 import { IncomingMessage, ServerResponse } from 'http';
 import * as mongodb from 'mongodb';
-import {Collection} from "mongodb";
+import { Collection } from 'mongodb';
 
-const DB_NAME = 'mydb'
-const COLLECTION_NAME = 'users'
+const DB_NAME = 'mydb';
+const COLLECTION_NAME = 'users';
 const URL = `mongodb://localhost:27017/${DB_NAME}`;
 
 let db: mongodb.Db;
@@ -28,7 +28,6 @@ function startServer(port: number) {
       throw err;
     });
 
-
   // Creates a server
   const server = http.createServer(handleRequest);
   // Starts the server
@@ -40,16 +39,20 @@ function startServer(port: number) {
 /** A function which handles requests and send response. */
 function handleRequest(request: IncomingMessage, response: ServerResponse) {
   const currentSpan = api.trace.getSpan(api.context.active());
-  // display traceID in the terminal
-  const traceId = currentSpan?.spanContext();
-  console.log(`traceid: ${traceId}`);
-  console.log(`Jaeger URL: http://localhost:16686/trace/${traceId}`);
-  console.log(`Zipkin URL: http://localhost:9411/zipkin/traces/${traceId}`);
+  if (currentSpan) {
+    // display traceID in the terminal
+    const { traceId } = currentSpan?.spanContext();
+    console.log(`traceid: ${traceId}`);
+    console.log(`Jaeger URL: http://localhost:16686/trace/${traceId}`);
+    console.log(`Zipkin URL: http://localhost:9411/zipkin/traces/${traceId}`);
+  } else {
+    console.log('No active span found');
+  }
 
   try {
     const body = [];
-    request.on('error', (err) => console.log(err));
-    request.on('data', (chunk) => body.push(chunk));
+    request.on('error', err => console.log(err));
+    request.on('data', chunk => body.push(chunk));
     request.on('end', async () => {
       if (request.url === '/collection/') {
         handleCreateCollection(response);
@@ -71,12 +74,13 @@ startServer(8080);
 function handleInsertQuery(response: ServerResponse) {
   const obj = { name: 'John', age: '20' };
   const usersCollection: Collection = db.collection(COLLECTION_NAME);
-  usersCollection.insertOne(obj)
+  usersCollection
+    .insertOne(obj)
     .then(() => {
       console.log('1 document inserted');
-      // find document to test context propagation using callback
-      usersCollection.findOne({}, function () {
-        response.end();
+      // find document to test context
+      usersCollection.findOne({}).then(res => {
+        console.log(JSON.stringify(res));
       });
     })
     .catch(err => {
@@ -87,16 +91,16 @@ function handleInsertQuery(response: ServerResponse) {
 
 function handleGetQuery(response: ServerResponse) {
   const usersCollection: Collection = db.collection(COLLECTION_NAME);
-  usersCollection.
-    find({})
+  usersCollection
+    .find({})
     .toArray()
     .then(() => {
       console.log('1 document served');
       response.end();
     })
     .catch(err => {
       throw err;
-    })
+    });
 }
 
 function handleCreateCollection(response: ServerResponse) {
@@ -108,7 +112,7 @@ function handleCreateCollection(response: ServerResponse) {
     .catch(err => {
       console.log('Error code:', err.code);
       response.end(err.message);
-  });
+    });
 }
 
 function handleNotFound(response: ServerResponse) {

examples/mongodb/src/tracer.ts

@@ -1,21 +1,20 @@
-import * as api from "@opentelemetry/api";
+import * as api from '@opentelemetry/api';
 
 import { NodeTracerProvider } from '@opentelemetry/sdk-trace-node';
 import { Resource } from '@opentelemetry/resources';
 import { SimpleSpanProcessor } from '@opentelemetry/sdk-trace-base';
-import { JaegerExporter } from '@opentelemetry/exporter-jaeger';
+import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http';
 import { ZipkinExporter } from '@opentelemetry/exporter-zipkin';
 import { registerInstrumentations } from '@opentelemetry/instrumentation';
 import { HttpInstrumentation } from '@opentelemetry/instrumentation-http';
 import { MongoDBInstrumentation } from '@opentelemetry/instrumentation-mongodb';
-import { SEMRESATTRS_SERVICE_NAME } from '@opentelemetry/semantic-conventions';
-
+import { ATTR_SERVICE_NAME } from '@opentelemetry/semantic-conventions';
 
 export const setupTracing = (serviceName: string): api.Tracer => {
   const provider = new NodeTracerProvider({
     resource: new Resource({
-      [SEMRESATTRS_SERVICE_NAME]: serviceName
-    })
+      [ATTR_SERVICE_NAME]: serviceName,
+    }),
   });
 
   // Initialize the OpenTelemetry APIs to use the NodeTracerProvider bindings
@@ -32,7 +31,7 @@ export const setupTracing = (serviceName: string): api.Tracer => {
   });
 
   provider.addSpanProcessor(new SimpleSpanProcessor(new ZipkinExporter()));
-  provider.addSpanProcessor(new SimpleSpanProcessor(new JaegerExporter()));
+  provider.addSpanProcessor(new SimpleSpanProcessor(new OTLPTraceExporter()));
 
   return api.trace.getTracer('mongodb-example');
 };

examples/web/.npmrc

@@ -0,0 +1 @@
+package-lock=false

examples/web/README.md

@@ -9,14 +9,26 @@ This example shows how to use [@opentelemetry/sdk-trace-web][] with different in
 npm install
 ```
 
+## Start a collector and trace viewer
+
+Optionally, you can use the provided Docker Compose file to start an OpenTelemetry Collector and a Zipkin to view collected traces.
+You can skip this step if you have your own collector already setup.
+
+```sh
+npm run docker:start
+```
+
 ## Run the Application
 
 ```sh
 # from this directory
 npm start
 ```
 
-By default, the application will run on port `8090`.
+- Open the application at <http://localhost:8090>.
+- Click around in each of the example sub-paths to create some tracing data.
+- Open Zipkin at <http://127.0.0.1:9411/zipkin/> and search for some traces (click "Run Query").
+
 
 ## More information