Concurrent requests

package main

import (
  "encoding/json"
  "fmt"
  "io"
  "net/http"
)

type post struct {
  UserId int    `json:"userId"`
  Id     int    `json:"id"`
  Title  string `json:"title"`
  Body   string `json:"body"`
}

func sendRequest(url string, ch chan string) {
  resp, error := http.Get(url)

  if error != nil {
    ch <- "Error while sending request"
  }

  defer resp.Body.Close()

  body, err := io.ReadAll(resp.Body)

  if err != nil {
    ch <- "Error while reading body"
  }

  var p post

  json.Unmarshal(body, &p)

  ch <- p.Title
}

func main() {
  ch := make(chan string)
  urls := [3]string{"https://jsonplaceholder.typicode.com/posts/1", "https://jsonplaceholder.typicode.com/posts/2", "https://jsonplaceholder.typicode.com/posts/3"}

  for _, url := range urls {
    go sendRequest(url, ch)
  }

  for range urls {
    select {
    case res := <-ch:
      {
        fmt.Println(res)
      }
    }
  }

}