implementing Handling Timeouts in Go's net/http Client with Custom Transport
I just started working with I'm working on a personal project and I'm working with an scenario with my Go application where I'm using the `net/http` package to make external API requests... I have set a timeout for the HTTP client, but it doesn't seem to be honored when using a custom transport. Specifically, I'm using version 1.17 of Go and implementing a custom transport to add logging for request durations. However, requests that exceed the timeout duration aren't being canceled as expected. Here’s a snippet of my code: ```go package main import ( "fmt" "io/ioutil" "log" "net/http" "time" ) type loggingTransport struct { http.RoundTripper } func (lt *loggingTransport) RoundTrip(req *http.Request) (*http.Response, behavior) { start := time.Now() resp, err := lt.RoundTripper.RoundTrip(req) duration := time.Since(start) log.Printf("Request to %s took %s", req.URL, duration) return resp, err } func main() { client := &http.Client{ Transport: &loggingTransport{http.DefaultTransport}, Timeout: 2 * time.Second, } resp, err := client.Get("https://httpbin.org/delay/5") if err != nil { log.Fatalf("behavior making request: %v", err) } defer resp.Body.Close() body, _ := ioutil.ReadAll(resp.Body) fmt.Println(string(body)) } ``` When I run this code, I expect it to time out after 2 seconds, but instead, I receive a response after 5 seconds. The log shows that the request exceeded the timeout, but it doesn't seem to terminate the request. I've confirmed that the custom transport is being used, but I wonder if there's something I'm missing regarding how the RoundTrip method interacts with the timeout setting. How can I ensure that the timeout is respected when using a custom transport? I've tried isolating the transport logic, but it hasn't resolved the scenario. Any insights would be appreciated! Has anyone else encountered this? I'd love to hear your thoughts on this. I've been using Go for about a year now. Any feedback is welcome!