Timeout

The ContextTimeout middleware sets a deadline on the request’s context.Context. When the deadline passes, the context is cancelled, and handlers that watch c.Request().Context().Done() can return promptly instead of running to completion.

In the example below the middleware imposes a 5-second timeout while the handler would otherwise take 10 seconds, so the request returns a 408 Request Timeout.

Server

package main

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

  "github.com/labstack/echo/v5"
  "github.com/labstack/echo/v5/middleware"
)

func main() {
  // Echo instance
  e := echo.New()

  // Middleware
  e.Use(middleware.ContextTimeout(5 * time.Second))

  // Route => handler
  e.GET("/", func(c *echo.Context) error {
    select {
    case <-c.Request().Context().Done():
      return echo.NewHTTPError(http.StatusRequestTimeout, "Request timed out")
    case <-time.After(10 * time.Second):
      return c.String(http.StatusOK, "Hello, World!\n")
    }
  })

  // Start server
  sc := echo.StartConfig{Address: ":1323"}
  if err := sc.Start(context.Background(), e); err != nil {
    e.Logger.Error("failed to start server", "error", err)
  }
}