Getting an http request with a string using net/http

I did an input where the user can input the "target" that should be searched via an api. I was wondering how to add the string to the end of the link.

func send() {
    reader := bufio.NewReader(os.Stdin)
    fmt.Println("Target: ")
    target, _ := reader.ReadString('\n')
    var i int
    fmt.Println("Delay: ")
    _, error_d := fmt.Scanf("%d", &i)
    if error_d != nil {
      fmt.Println(error_d)
    }
    delay, _ := reader.ReadString('\n')
    fmt.Println("Delay: ", delay)
    fmt.Println("Target: ", target)
    resp, error := http.Get("https://api.ashcon.app/mojang/v2/user/"+target+"")
    if error != nil {
        print(error)
    }

    defer resp.Body.Close()
    body, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        print(err)
    }

    fmt.Print(string(body))
    print(" ")
}

This gives me this error:

(0x80a8c0,0xc0000ac900)panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x40 pc=0x73f39d]

resp, error := http.Get("https://api.ashcon.app/mojang/v2/user/"+target+"")
if error != nil {
        print(error)
}

defer resp.Body.Close()

You don't have any return if error != nil then after print(error) your function continue, trying to close resp.Body.Close() with nil resp at the end by the defer statement

This should works:

resp, error := http.Get("https://api.ashcon.app/mojang/v2/user/"+target+"")
if error != nil {
        print(error)
        return
}

defer resp.Body.Close()

Some info about defer https://golang.org/ref/spec#Defer_statements:

A "defer" statement invokes a function whose execution is deferred to the moment the surrounding function returns, either because the surrounding function executed a return statement, reached the end of its function body, or because the corresponding goroutine is panicking.