Does GoLang\'s default HTTP client automatically retry requests when the server is unavailable?

Automatic Retry in HTTP Requests

Question:

In GoLang, while attempting to push data to an Apache server, the server may be temporarily unavailable. Will the HTTP request automatically retry in such a scenario?

Answer:

No, the default HTTP client in GoLang does not automatically retry HTTP requests.

Implementation of Retry Method:

To implement a custom retry mechanism, consider the following example:

<code class="go">package main

import (
    "fmt"
    "io/ioutil"
    "log"
    "net/http"
)

func main() {
    var (
        err      error
        response *http.Response
        retries  int = 3
    )
    for retries > 0 {
        response, err = http.Get("https://non-existent")
        if err != nil {
            log.Println(err)
            retries -= 1
        } else {
            break
        }
    }
    if response != nil {
        defer response.Body.Close()
        data, err := ioutil.ReadAll(response.Body)
        if err != nil {
            log.Fatal(err)
        }
        fmt.Printf("data = %s\n", data)
    }
}</code>

This code demonstrates a basic retry mechanism, allowing for a maximum of three retries before failing. The HTTP request is repeatedly issued until it succeeds or the specified number of retries has been exhausted.

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