examples/tracing/mainmatter-workshop/README.md

Telemetry Workshop Solution

Overview

A solution to the capstone project at the end of Mainmatter's telemetry workshop.

As stated in the exercise brief, this example will:

• Configure a tracing subscriber that exports data to both Honeycomb and stdout, in JSON format;
• Configure a suitable panic hook;
• Configure a metric recorder that exposes metric data at /metrics, using a different port than your API endpoints (this example shows how to use the existing HTTP server);
• Add one or more middleware that:
  • Create a top-level INFO span for each incoming request;
  • Track the number of concurrent requests using a gauge;
  • Track request duration using a histogram;
  • Track the number of handled requests
• All metrics should include success/failure as a label.

Usage

$ cd tracing/mainmatter-workshop
$ cargo run