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PHP: Zoom の token を取得

Posted at 2021-03-13

次のページを参考にしました。
JWT With Zoom
Zoomのアプリケーションの作成

gen_token.php

# ! /usr/bin/php
<?php
// ------------------------------------------------------------------
//	gen_token.php
//
//					Mar/13/2021
//
// ------------------------------------------------------------------
function file_write_proc ($string_out,$file_out)
{
	try
		{
		$fp_out=fopen ($file_out,"w");
		fputs ($fp_out,$string_out);
		fclose ($fp_out);
		}
	catch (Exception $ee)
		{
		print("*** error *** file_write_proc ***\n");
		print('Error:'.$ee->getMessage());
		}
}

// ------------------------------------------------------------------
function urlsafe_base64_encode($str){
	return str_replace(array('+','/','='), array('-','_',''), base64_encode($str));
}

// ------------------------------------------------------------------
$API_Key = '*******';
$API_Secret = '********************************';
$expiration = time() + 3600;

$header = urlsafe_base64_encode('{"alg":"HS256","typ":"JWT"}');
$payload = urlsafe_base64_encode('{"iss":"'.$API_Key.'","exp":'.$expiration.'}');
$signature = urlsafe_base64_encode(hash_hmac('sha256', "$header.$payload", $API_Secret, TRUE));
$token = "$header.$payload.$signature";


$unit_aa = array ();
$unit_aa['token'] = $token;

$str_json = json_encode ($unit_aa);

$file_out = "token.json";
file_write_proc ($str_json,$file_out);

// ------------------------------------------------------------------
?>

実行すると次のファイルが作成されます。

token.json

{
  "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6I1234567890123****NjE1NjM1NTgxfQ.TjM67nGJrtyHJfuaVIlCTOoo"
}

次のようなスクリプトで使えます。

token=`jq .token token.json | sed 's/"//g'`
http "https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1" \
    "Authorization:Bearer ${token}"