timeout.go

package main

import (
	"context"
	"net/http"
	"time"

	"github.com/danielgtaylor/huma"
	"github.com/danielgtaylor/huma/cli"
	"github.com/danielgtaylor/huma/responses"
)

func main() {
	app := cli.NewRouter("Timeout Example", "1.0.0")

	app.Resource("/timeout").Get("timeout", "Timeout example",
		responses.String(http.StatusOK),
		responses.InternalServerError(),
	).Run(func(ctx huma.Context) {
		// Add a timeout to the context. No outgoing request should take longer
		// than 2 seconds or we abort.
		newCtx, cancel := context.WithTimeout(ctx, 2*time.Second)
		defer cancel()

		// Create a new request that will take 5 seconds to complete.
		req, _ := http.NewRequestWithContext(
			newCtx, http.MethodGet, "https://httpstat.us/418?sleep=5000", nil)

		// Make the request. This will return with an error because the context
		// deadline of 2 seconds is shorter than the request duration of 5 seconds.
		_, err := http.DefaultClient.Do(req)
		if err != nil {
			ctx.WriteError(http.StatusInternalServerError, "Problem with HTTP request", err)
			return
		}

		// Success case, which we never get to.
		ctx.Write([]byte("success!"))
	})

	app.Run()
}