Generate JWT for App Store Connect API

generate_jwt.rb

require 'jwt'
require 'openssl'

# App Store Connect APIキー (.p8ファイル) の内容を読み込む
ecdsa_key = OpenSSL::PKey::EC.new(File.read("/path/to/your.p8"))

# Issuer ID (App Store Connectから取得)
# https://appstoreconnect.apple.com/access/api
issuer_id = "your_issuer_id"

# Key ID (App Store Connectから取得)
# https://appstoreconnect.apple.com/access/api
key_id = "your_key_id"

# 現在時刻
time_now = Time.now.to_i

# ヘッダーとペイロードの設定
headers = {
  'kid' => key_id
}

payload = {
  'iss' => issuer_id,
  'exp' => time_now + 1200, # トークンの有効期限は発行から20分
  'aud' => "appstoreconnect-v1"
}

# トークンの生成
token = JWT.encode payload, ecdsa_key, 'ES256', headers

puts "Generated JWT: #{token}"