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W3C Trace Context Example

This project consists of two Flask servers and one Express server instrumented with Opentelemetry on a standalone host. (This is not using k8s or containers)

Start the Demo

Option 1 (Standalone Host)

There are a few required steps to get this example working.

  1. Install and set up the OpenTelemetry Collector on the host of your choice. https://opentelemetry.io/docs/collector/installation/
  2. Set up the Collector configuration. An example collector configuration can be found at Config File.
    • The config.yaml is set up to send traces and metrics from OTLP Collector to the Datadog Exporter.
    • Update the DATADOG_API_KEY as well.
  3. Run this collector ~ ./otelcol-contrib --config=config.yaml
  4. Once the collector is up and running. Set up the 3 servers. (Can be found in each of the servers README)

Option 2 (Docker)

  1. Update DATADOG_API_KEY in Config File.
  2. Run docker-compose up

To trigger the service call

Success

curl -X POST http://localhost:5002/play_game \
     -H "Content-Type: application/json" \
     -d '{"player": "John Doe"}'

Error

curl -X POST http://localhost:5002/play_game \
     -H "Content-Type: application/json" \
     -d '{}'

View traces & standalone host in app.datadoghq.com