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[開發] Apple App Store Connect API PHP串接筆記

這次要串接Apple App Store Connect API,前置步驟要產生Token卡很久。

很多文章都有提到,如何在Connect網頁生成Role以取得kid, iss 但卻很少人提到JWT Token的生成需要注意的地方,嘗試了很久才成功取得不會被說「401 NOT_AUTHORIZED Authentication credentials are missing or invalid.」 的Token啊~~(淚)

依照官方文件,使用 php套件 ( 出的encode套件,安裝方式官網有提到。如果有用composer只要

composer require lcobucci/jwt

由於Apple是要用ES256所以 composer require firebase/php-jwt 不適用。

接著,在程式碼部分,官方文件是提到用內建builder的方式,但是內建builder有個參數kid沒有塞入,而且也有多塞入不用塞入的東西都會影響結果。(JWT其實就只是一個加密方式,把給的header與payload壓成用 . 分割的三段字串)

後來去看JWT.io提供的builder function下,自行塞入文件提到的六樣參數,外加用Connect提供的private.key(私鑰),壓出Token!

use Lcobucci\JWT\Builder;
use Lcobucci\JWT\Signer\Key;
use Lcobucci\JWT\Signer\Ecdsa\Sha256;

$signer = new Sha256(); //因為是Sha256所以要額外選擇編碼方式
$time = time();
$token = new Builder(); // 建立一個基本的builder
$token->setHeader('typ','JWT');  //把header塞入,但不用塞入 alg欄位,stackoverflow有人提到加了alg會錯於是我就把它移除了~
$token->setHeader('kid','[key ID]'); //後台提供[key ID],把[key ID]整個換自己的   

$token->set('iss','[Issuer ID]'); //後台提供[Issuer ID],把[Issuer ID]整個換自己的
$token->set('exp',time()+600); //Token有效期限,最長20分鐘,目前設為10分鐘
$token->set('aud','appstoreconnect-v1'); //固定

$token = $token->getToken($signer, new Key('[Private Key String]')); //由Coonect提供的private key這邊是直接把字串塞入,也可以用file include方式

echo $token; //印出取得的token就可以用Postman測試了!


後來才發現,竟然是要連filter[]字樣也要丟上去網址做GET query...網站上都沒有範例啊啊啊~

這邊貼一個範例,以上面的sales report API為例:[frequency]=DAILY&filter[reportSubType]=SUMMARY&filter[vendorNumber]=86225164&filter[reportDate]=2019-10-01&filter[reportType]=SUBSCRIPTION&filter[version]=1_2

別忘了API header要加上 Authorization: Bearer [Token] 才能驗證過喔!