Coinbase Pro API“无效签名”RUBY

require 'base64'
require 'openssl'
require 'time'
require 'net/http'
require 'uri'

# Coinbase Pro API配置
api_key = 'YOUR_API_KEY'
api_secret = 'YOUR_API_SECRET'
passphrase = 'YOUR_PASSPHRASE'
base_url = 'https://api.pro.coinbase.com'

# 请求参数
method = 'GET'
endpoint = '/accounts'
timestamp = Time.now.to_i * 1000
message = "#{timestamp}#{method.upcase}#{endpoint}"

# 生成签名
hash = OpenSSL::HMAC.digest('sha256', api_secret, message)
signature = Base64.strict_encode64(hash)

# 构建请求头
headers = {
  'CB-ACCESS-KEY' => api_key,
  'CB-ACCESS-SIGN' => signature,
  'CB-ACCESS-TIMESTAMP' => timestamp.to_s,
  'CB-ACCESS-PASSPHRASE' => passphrase,
  'Content-Type' => 'application/json'
}

# 发送请求
uri = URI.parse(base_url + endpoint)
req = Net::HTTP::Get.new(uri, headers)
res = Net::HTTP.start(uri.hostname, uri.port) do |http|
  http.request(req)
end

puts res.body