Amazon Product Advertising APIã®èªè¨¼ã®ä»¶ - zorioã®æ—¥è¨˜å‚考：http://chalow.net/2009-05-09-1.html 今後ã¯OpenIDã¿ãŸã„ã«AWSã«ã‚·ã‚°ãƒãƒãƒ£ãŒè¦ã‚‹ã¨ã‹ã€‚ rubyã§æ›¸ã„ã¦ã¿ãŸã€‚ require "openssl" require "base64" key = "1234567890" req = [ "AWSAccessKeyId=00000000000000000000", "ItemId=0679722769", "Operation=ItemLookup", "ResponseGroup=ItemAttributes%2COffers%2CImages%2CReviews", "Service=AWSECommerceService", "Timestamp=2009-01-01T12%3A00%3A00Z", "Version=2009-01-06"].join("&") message = ["G
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