var options = {
  headers: {
    Authorization:
      'HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4'
  },
  method: 'GET',
  url:
    'http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages'
};
​
$.ajax(options).done(function(response) {
  console.log(response);
});

<?php
$url = "http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages";
​
$options = array(
    'http' => array(
        'header'  => "Authorization: HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4\r\n",
        'method'  => 'GET'
    )
);
​
$context  = stream_context_create($options);
$result = file_get_contents($url, false, $context);
​
var_dump($result);

import requests
​
url = "http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages"
headers = {
  "Authorization": "HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4"
}
​
response = requests.get(url, headers=headers)
print(response.status_code)
print(response.text)

#!/bin/bash
curl -X GET \
    -H 'Authorization: HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4' \
    http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages

require 'net/http'
require 'uri'
require 'json'
​
uri = URI.parse("http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages")
​
headers = {
  "Authorization": "HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4"
}
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Get.new(uri.request_uri, headers)
​
response = http.request(request)
puts response.code
puts response.body

package main
​
import (
  "fmt"
  "io/ioutil"
  "net/http"
  "strings"
)
​
func main() {
  uri := "http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages"
​
  req, err := http.NewRequest("GET", uri, nil)
  if err != nil { panic(err) }
​
  req.Header.Set("Authorization", "HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4")
​
  client := &http.Client{}
  resp, err := client.Do(req)
  if err != nil { panic(err) }
  defer resp.Body.Close()
​
  bytes, _ := ioutil.ReadAll(resp.Body)
  str := string(bytes)
  fmt.Println(str)
}

package solapi;
​
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
​
public class Request {
  public static void main(String[] args) throws Exception {
    String targetUrl = "http://api.solapi.com/messages/v4/groups/G4V20180307105937H3PTASXMNJG2JIO/messages";
​
    URL url = new URL(targetUrl);
    HttpURLConnection con = (HttpURLConnection) url.openConnection();
​
    con.setRequestMethod("GET");
​
    con.setRequestProperty("Authorization", "HMAC-SHA256 apiKey=NCSAYU7YDBXYORXC, date=2019-07-01T00:41:48Z, salt=jqsba2jxjnrjor, signature=1779eac71a24cbeeadfa7263cb84b7ea0af1714f5c0270aa30ffd34600e363b4");
​
    con.setDoOutput(true);
    DataOutputStream wr = new DataOutputStream(con.getOutputStream());
    wr.writeBytes(parameters);
    wr.flush();
    wr.close();
​
    int responseCode = con.getResponseCode();
    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
    String line;
    StringBuffer response = new StringBuffer();
    while ((line = in.readLine()) != null) {
      response.append(line);
    }
    in.close();
​
    System.out.println("HTTP response code : " + responseCode);
    System.out.println("HTTP body : " + response.toString());
  }
}