curl --request GET \
  --url https://api.dev.shadowchef.co/v1/partner/price/groups \
  --header 'Authorization: Basic <encoded-value>'

const url = 'https://api.dev.shadowchef.co/v1/partner/price/groups';
const options = {method: 'GET', headers: {Authorization: 'Basic <encoded-value>'}};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

import requests

url = "https://api.dev.shadowchef.co/v1/partner/price/groups"

headers = {"Authorization": "Basic <encoded-value>"}

response = requests.get(url, headers=headers)

print(response.text)

package main

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

func main() {

	url := "https://api.dev.shadowchef.co/v1/partner/price/groups"

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

	req.Header.Add("Authorization", "Basic <encoded-value>")

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

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

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.dev.shadowchef.co/v1/partner/price/groups",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>"
  ],
]);

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

curl_close($curl);

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

{
  "request_id": "84b5f7a0dbe83a972d72e4ed0d87a7a7",
  "data": [
    {
      "id": 2,
      "title": "Mall"
    },
    {
      "id": 3,
      "title": "Airport"
    }
  ]
}

{
  "request_id": "req_4d1b7e3f-...",
  "data": "<unknown>",
  "error": {
    "code": "auth_invalid_credential",
    "message": "<string>",
    "details": "<unknown>"
  }
}

{
  "request_id": "req_4d1b7e3f-...",
  "data": "<unknown>",
  "error": {
    "code": "auth_invalid_credential",
    "message": "<string>",
    "details": "<unknown>"
  }
}