Go Native OpenTelemetry Integration

Table of Contents

• Installation
• Configuration
• Usage
• All Configuration Options
• All Middleware Configuration Options

Installation

Install the APIToolkit native Go SDK using the following command go get command:

go get github.com/apitoolkit/apitoolkit-go/native

Configuration

Before configuration open telemetery and setting up the APItoolkit middleware, you need to configure a few environment variables. These variables provide essential information for setting up openTelemetry and APItoolkit.

OTEL_RESOURCE_ATTRIBUTES="at-project-key=YOUR_API_KEY" # Your apitoolkit API key
OTEL_SERVICE_NAME="apitoolkit-otel-go-demo" # Service name for your the service you're integrating in
OTEL_SERVICE_VERSION="0.0.1" # Your application's service version

Usage

After setting up the environment variables, you can configure the OpenTelemetry SDK and APItoolkit middleware like so:

package main

import (
	"log"

	apitoolkit "github.com/apitoolkit/apitoolkit-go/native"
  _ "github.com/joho/godotenv/autoload" // autoload .env file for otel configuration

)

func main() {
  // configure openTelemetry
	shutdown, err := apitoolkit.ConfigureOpenTelemetry()
	if err != nil {
		log.Printf("error configuring openTelemetry: %v", err)
	}
	defer shutdown()

	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte("Hello, World!"))
	})
  // configure apitoolkit middleware
	nativeMiddleware := apitoolkit.Middleware(apitoolkit.Config{
		RedactHeaders:       []string{"Authorization", "X-Api-Key"},
		RedactRequestBody:   []string{"password", "credit_card"},
		RedactResponseBody:  []string{"password", "credit_card"},
	})
	// Wrap handler with middleware for monitoring requests and reporting errors
	http.Handle("/", nativeMiddleware(handler))
	if err := http.ListenAndServe(":8000", nil); err != nil {
		log.Fatal(err)
	}
}

All Environment Variables

Set the following environment variables in your application to enable the SDK:

All Middleware Configuration Fields

The middleware configuration specifies how the APItoolkit SDK should handle requests and responses. Below are the available fields:

<div class="callout"> <p><i class="fa-regular fa-lightbulb"></i> <b>Tips</b></p> <ol> <li> Remember to keep your APIToolkit project key (at-project-key) secure and not expose it in public repositories or logs. </li> </ul>

</div>