使用 Ruby 和运行连接到 Coinbase API 进入连接问题。法拉第

Question

正在尝试使用 Ruby 连接到 Coinbase GDAX 沙箱 API。目前正在使用 Faraday，但欢迎 HTTParty 或 Ruby Core API 建议。

我在发出 post 请求时遇到了困难，似乎无法分辨我在哪里搞砸了。

出现了一大堆错误，但最重要的是：

/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/net/http/header.rb:18:in block in initialize_http_header': undefined methodstrip' for 1556021965:Fixnum (NoMethodError)

Coinbase 文档：https://docs.pro.coinbase.com/?ruby#signing-a-message

我的 api 电话简而言之。

payload = { 
            "data": "DATA"        
        }

        url = 'https://api-public.sandbox.gdax.com/orders'
        conn = Faraday.new      
        response = conn.post do |req|           
            req.url url
            req.headers['REQ-HEADER-1'] = "FOO",
            req.headers['REQ-HEADER-1'] = "BAR",           
            req.body = payload      
        end

        puts response

完整代码

require 'Faraday' require 'base64' require 'openssl' require 'json'


class foo


    def initialize
        @api_key = '25b1d259417d159443c03ed14eb9ee49'       
        @api_secret = 'trBTZUj4zLfHEBfbQy3+LeLOaAeAbfG/zCqIvzu3RyiKhqf5y85NYqqZi7GUSBCzhryud1pyOs5idibzdOx/tw=='        
        @api_pass = '7zkf0bvr6q4'       
    end         

    def signature(request_path='', body='', timestamp=nil, method='POST')
      body = body.to_json if body.is_a?(Hash)
      timestamp = Time.now.to_i if !timestamp

      what = "#{timestamp}#{method}#{request_path}#{body}";

      # create a sha256 hmac with the secret
      secret = Base64.decode64(@api_secret)
      hash  = OpenSSL::HMAC.digest('sha256', secret, what)
      Base64.strict_encode64(hash)
    end

    def post_buy

        usd = get_usd_available         
        usd = usd / 2       

        payload = { 
            "funds": usd.to_s,
            "product_id": "BTC-USD",
            "side": "buy",
            "type": "market"        
        }

        url = 'https://api-public.sandbox.gdax.com/orders'
        conn = Faraday.new      
        response = conn.post do |req|           
            req.url url
            req.headers['CB-ACCESS-KEY'] = @api_key,
            req.headers['CB-ACCESS-SIGN'] = signature( url, payload),
            req.headers['CB-ACCESS-TIMESTAMP'] = Time.now.to_i,
            req.headers['CB-ACCESS-PASSPHRASE'] = @passphrase,           
            req.body = payload      
        end

        puts response

    end

end

foo.new.post_buy

Answer 1

您可以查看 http/header.rb 处的代码：它在每个 header 上调用 strip，因此每个 header 值都应该是一个字符串。

我认为这是有问题的行，您在这里提供一个整数作为 header 值：

req.headers['CB-ACCESS-TIMESTAMP'] = Time.now.to_i

将其转换为字符串应该可以修复它：

req.headers['CB-ACCESS-TIMESTAMP'] = Time.now.to_i.to_s

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