goagent for net/http

Getting started

HTTP server

The server instrumentation relies on the http.Handler component of the server declarations.

import (
    "net/http"

    "github.com/gorilla/mux"
    "github.com/hypertrace/goagent/instrumentation/net/hyperhttp"
    "go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
)

func main() {
    // ...

    r := mux.NewRouter()
    r.Handle("/foo/{bar}", otelhttp.NewHandler(
        hyperhttp.WrapHandler(fooHandler),
        "/foo/{bar}",
    ))

    // ...
}

HTTP client

The client instrumentation relies on the http.Transport component of the HTTP client in Go.

import (
    "net/http"
    "github.com/hypertrace/goagent/instrumentation/net/hyperhttp"
    "go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
)

// ...

client := http.Client{
    Transport: otelhttp.NewTransport(
        hyperhttp.WrapDefaultTransport(),
        ...
    ),
}

req, _ := http.NewRequest("GET", "http://example.com", nil)

res, err := client.Do(req)

// ...

Running example

In terminal 1 run

make run-http-server-example

In terminal 2 run

make run-http-client-example