VOD Station 개요

VOD Station은 Object Storage에 저장된 수많은 영상 파일을 다양한 화질로 쉽게 인코딩 할 수 있고, HLS/DASH 프로토콜로 스트리밍할 수 있는 서비스입니다. HTTP API를 이용하여 VOD Station의 모든 기능을 제어할 수 있습니다.

공통 설정

VOD Station API URL

https://vod-station.apigw.gov-ntruss.com/api/v2

요청 헤더

인증 헤더

VOD Station API를 사용하기 위해서는 API Gateway 인증이 필요합니다.
상세한 API Gateway 인증 관련 설명은 NAVER Cloud Platform API를 참고해 주십시오.

AUTHPARAMS 생성하기

• AUTHPARAMS 요청 예시

curl -i -X GET \
   -H "x-ncp-region_code:KR" \
   -H "x-ncp-apigw-timestamp:1505290625682" \
   -H "x-ncp-iam-access-key:D78BB444D6D3C84CA38A" \
   -H "x-ncp-apigw-signature-v2:WTPItrmMIfLUk/UyUIyoQbA/z5hq9o3G8eQMolUzTEo=" \
 'https://vod-station.apigw.gov-ntruss.com/api/v2/channels'

• Signature 생성(개행 문자는 \n을 사용)

  • 요청에 맞게 StringToSign을 생성하고 SecretKey로 HmacSHA256 알고리즘으로 암호화한 후 Base64로 인코딩합니다.

  • 이 값을 x-ncp-apigw-signature-v2로 사용합니다.

    요청	StringToSign
    GET /api/v2/channels?limit=10 x-ncp-apigw-timestamp={timestamp} x-ncp-iam-access-key={accesskey} x-ncp-apigw-signature-v2={signature}	GET /api/v2/channels?limit=10 {timeStamp} {accessKey}

• 샘플 코드

public String makeSignature() {
    String space = " ";					// 공백
    String newLine = "\n";  				// 줄바꿈
    String method = "GET";  				// HTTP 메서드
    String url = "/api/v2/channels?isPage=true";	// 도메인을 제외한 "/" 아래 전체 url (쿼리스트링 포함)
    String accessKey = "{accessKey}";		// access key id (from portal or Sub Account)
    String secretKey = "{secretKey}";		// secret key (from portal or Sub Account)
    String timestamp = String.valueOf(System.currentTimeMillis());		// 현재 타임스탬프 (epoch, millisecond)

    String message = new StringBuilder()
        .append(method)
        .append(space)
        .append(url)
        .append(newLine)
        .append(timestamp)
        .append(newLine)
        .append(accessKey)
        .toString();

    SecretKeySpec signingKey = new SecretKeySpec(secretKey.getBytes("UTF-8"), "HmacSHA256");
    Mac mac = Mac.getInstance("HmacSHA256");
    mac.init(signingKey);

    byte[] rawHmac = mac.doFinal(message.getBytes("UTF-8"));
    String encodeBase64String = Base64.encodeBase64String(rawHmac);

  return encodeBase64String;
}

/*
https://code.google.com/archive/p/crypto-js/
https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/crypto-js/CryptoJS%20v3.1.2.zip
*/

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
<script type="text/javascript" src="./CryptoJS/rollups/hmac-sha256.js"></script>
<script type="text/javascript" src="./CryptoJS/components/enc-base64.js"></script>

function makeSignature(secretKey, method, url, timestamp, accessKey) {
	var space = " ";
	var newLine = "\n";

	var hmac = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, secretKey); // secret key
	hmac.update(method);		// HTTP 메서드
	hmac.update(space);		// 공백
	hmac.update(url);		// 도메인을 제외한 "/" 아래 전체 url (쿼리스트링 포함)
	hmac.update(newLine);		// 줄바꿈
	hmac.update(timestamp);		// 현재 타임스탬프 (epoch, millisecond)
	hmac.update(newLine);		// 줄바꿈
	hmac.update(accessKey);		// access key (from portal or iam)

	var hash = hmac.finalize();

	return hash.toString(CryptoJS.enc.Base64);
}

import sys
import os
import hashlib
import hmac
import base64
import requests
import time

def	make_signature():
	timestamp = int(time.time() * 1000)
	timestamp = str(timestamp)				# 현재 타임스탬프 (epoch, millisecond)

	access_key = "{accessKey}"				# access key id (from portal or Sub Account)
	secret_key = "{secretKey}"				# secret key (from portal or Sub Account)
	secret_key = bytes(secret_key, 'UTF-8')

	method = "GET"						# HTTP 메서드
	uri = "/api/v2/channels?isPage=true"			# 도메인을 제외한 "/" 아래 전체 url (쿼리스트링 포함)

	message = method + " " + uri + "\n" + timestamp + "\n"
	+ access_key
	message = bytes(message, 'UTF-8')
	signingKey = base64.b64encode(hmac.new(secret_key, message, digestmod=hashlib.sha256).digest())
	return signingKey

<?php
 
$access_key = "{accessKey}";
$secret_key = "{secretKey}";
$url = "/api/v2/channels";
$timestamp = getMillisecond();
 
$message = "GET";
$message .= " ";
$message .= $url;
$message .= "\n";
$message .= $timestamp;
$message .= "\n";
$message .= $access_key;
 
$signature = base64_encode(hash_hmac('sha256', $message, $secret_key, true));
 
$headers = array(
  "Content-Type: application/json;",
  "x-ncp-apigw-timestamp: ".$timestamp."",
  "x-ncp-iam-access-key: ".$access_key."",
  "x-ncp-apigw-signature-v2: ".$signature.""
);
 
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://vod-station.apigw.gov-ntruss.com".$url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
 
echo $response;
 
function getMillisecond()
{
  list($microtime, $timestamp) = explode(' ', microtime());
  $time = $timestamp.substr($microtime, 2, 3);
  return $time;
}
 
?>

function makeSignature() {
	nl=$'\\n'

	TIMESTAMP=$(echo $(($(date +%s%N)/1000000)))	# 현재 타임스탬프 (epoch, millisecond)
	ACCESSKEY="{accessKey}"				# access key id (from portal or Sub Account)
	SECRETKEY="{secretKey}"				# secret key (from portal or Sub Account)
	METHOD="GET"					# HTTP 메서드
	URI="/api/v2/channels?isPage=true"		# 도메인을 제외한 "/" 아래 전체 url (쿼리스트링 포함)

	SIG="$METHOD"' '"$URI"${nl}
	SIG+="$TIMESTAMP"${nl}
	SIG+="$ACCESSKEY"

	SIGNATURE=$(echo -n -e "$SIG"|iconv -t utf8 |openssl dgst -sha256 -hmac $SECRETKEY -binary|openssl enc -base64)
}

VOD Station API 요청 구성

Header
  x-ncp-region_code:{Region Code}
  x-ncp-apigw-timestamp:{Timestamp}
  x-ncp-iam-access-key:{Sub Account Access Key}
  x-ncp-apigw-signature-v2:{API Gateway Signature}
  Content-Type:application/json
Body
  Json Object
URL
  https://vod-station.apigw.gov-ntruss.com/api/v2/{action}

VOD Station API 요청 샘플

curl -i -s -X POST \
 -H "Content-Type:application/json" \
 -H "x-ncp-region_code:KR" \
 -H "x-ncp-apigw-timestamp:1521787414578" \
 -H "x-ncp-iam-access-key:6uxz1nKkcYwUjWRG5Q1V7NsW0i5jErlu2NjBXXgy" \
 -H "x-ncp-apigw-signature-v2:iJFK773KH0WwQ79PasqJ+ZGixtpDQ/abS57WGQdld2M=" \
 "https://vod-station.apigw.gov-ntruss.com/api/v2/channles"\
 -d "{ \"cdnTypeList\": [ \"cdn+\" ], \"createCdn\": true, \"name\": \"api-guide\", \"protocolList\": [ \"HLS\", \"DASH\" ], \"segmentDuration\": 5, \"storageBucketName\": \"guide\"}"

VOD Station API Content-Type

VOD Station API HTTP Request와 Response Body를 통해 전달되는 모든 데이터의 Content-type은 application/json을 사용합니다.