curl --request GET \
  --url https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}

import requests

url = "https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://mainnet.mirrornode.hedera.com/api/v1/blocks/{hashOrNumber}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body

{
  "count": 3,
  "gas_used": 300000,
  "hapi_version": "0.11.0",
  "hash": "0x3c08bbbee74d287b1dcd3f0ca6d1d2cb92c90883c4acf9747de9f3f3162ad25b999fc7e86699f60f2a3fb3ed9a646c6b",
  "logs_bloom": "0x00000020002000001000000000000000000000000000000000000000000010000000000004000000000000000000000000108000000000000000000080000000000004000000000000000000000000880000000000000000000101000000000000000000000000000000000000008000000000000400000080000000000001000000000000000000000000000000000000000000002000000000100000100000200000040000100000001000000000000000000000000000000001001000004000000000000000000001000000000000000000100000000000100000000000000000000000000000000000000000000000080000100800000000000000120080",
  "name": "2022-05-03T06_46_26.060890949Z.rcd",
  "number": 77,
  "previous_hash": "0xf7d6481f659c866c35391ee230c374f163642ebf13a5e604e04a95a9ca48a298dc2dfa10f51bcbaab8ae23bc6d662a0b",
  "size": 8192,
  "timestamp": {
    "from": "1651560386.060890949",
    "to": "1651560386.661997287"
  }
}

{
  "_status": {
    "messages": [
      {
        "message": "Invalid parameter: account.id"
      },
      {
        "message": "Invalid Transaction id. Please use \\shard.realm.num-sss-nnn\\ format where sss are seconds and nnn are nanoseconds"
      }
    ]
  }
}

{
  "_status": {
    "messages": [
      {
        "message": "Not found"
      }
    ]
  }
}