åæ Androidã¢ããªã§ã®ååã®è³¼å ¥ããµã¼ãå´ã§ãæ¤è¨¼ããå¿ è¦ããã£ãã ã®ã§ãã¢ããªããéä¿¡ãããPurchaseã®æ å ±ãRubyã§Developer APIã«åãåãããè³¼å ¥ã確èªããã³ã¼ããç´¹ä»ãã¾ãã 以ä¸ã¯Railsã§ã®ä¾ã§ãããç¹ã«Railsåºæã®æ©è½ã¯ä½¿ã£ã¦ããªãã®ã§ä»ã®Rubyç°å¢ã§ãåãã¯ãã require 'jwt' require 'net/http' require 'openssl' class ReceiptValidator def validate_transaction(purchase_token, product_id) order_id = nil purchase_data = nil # [1], [2] access_token = issue_request_token # [3] base = "https://www.googlea
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