curl --request POST \
  --url https://api.m3ter.com/oauth/token \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "grant_type": "client_credentials",
  "scope": "<string>"
}
'

import requests

url = "https://api.m3ter.com/oauth/token"

payload = {
    "grant_type": "client_credentials",
    "scope": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({grant_type: 'client_credentials', scope: '<string>'})
};

fetch('https://api.m3ter.com/oauth/token', 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://api.m3ter.com/oauth/token",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'grant_type' => 'client_credentials',
    'scope' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.m3ter.com/oauth/token"

	payload := strings.NewReader("{\n  \"grant_type\": \"client_credentials\",\n  \"scope\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.m3ter.com/oauth/token")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"grant_type\": \"client_credentials\",\n  \"scope\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.m3ter.com/oauth/token")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"grant_type\": \"client_credentials\",\n  \"scope\": \"<string>\"\n}"

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

{
  "token_type": "Bearer",
  "access_token": "eyJ0eXAiOiJKV1QiLCJwdCI6InNlcnZpY2UiLCJhbGciOiJSUzI1NiIsImtpZCI6InNlcnZpY2VVc2VyXzgxYzQ5YTU0LWRmY2QtNGRhNS1iYmYzLWQyODg1ZWMwMjVkZCJ9.eyJzdWIiOiIyOTA2ZDE4Zi1lNzFiLTRlMTAtOWJkNi1mZDA3YjUyNjM4ZjIiLCJwZXJtaXNzaW9ucyI6eyJNRUFTVVJFTUVOVFMjTUVBU1VSRU1FTlRTX1VQTE9BRCNJVEVNIyoiOnRydWV9LCJpc3MiOiJodHRwczpcL1wvbTN0ZXIuY29tXC9vYXV0aDIiLCJleHAiOjE2ODA1NDU3NTAsImlhdCI6MTY4MDUyNzc1MCwib3JnSWQiOiI4MWM0OWE1NC1kZmNkLTRkYTUtYmJmMy1kMjg4NWVjMDI1ZGQifQ.EwB-H4u7jKP5Ew8g0KwkPOBJPvuzDpayzWwyfm-kLPLPm9X3b3etQi1y3btKADYLy8WU452IbRFKgkhGBXrFN5rFR7mXLc1SUR-fU-anUNKCX-QPNrCzUyI2P1icQA2KFdvnYjJfLp5-gtCJWoX-Mf09-CFNPKC7sx0cVbro1Zd4axn6KpYi_48fufRYgoprwriYgpzkvG1Tq9SZtGU3vWex0eWFRKqHur6QwdxQzi_HM08kOb3puWqTio-7r3_sMOLkGitsg0teyJ-A-gYmOayZ4I2Nad7pmciLRh70kJYpR3L1yc82MPBIaJIYRxfWcOTnY8Opyv7ZlGm-hn2lUA",
  "expires_in": 18000,
  "scope": null
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}