ruby - 如何有条件地选择两种方法之一来接收相同的 block

Question

我正在尝试更改依赖于变量 req 的代码的过程，您如何在此处看到:

@res = @conn.post do |request| if req == 'post'
@res = @conn.get do |request| if req == 'get'

问题是这似乎引发了一个错误:

stack.rb:89: syntax error, unexpected end-of-input, expecting keyword_end
user2.send_csr

我的问题是，我必须更改什么才能避免此问题？如果您需要有关我的代码的更多信息:

def send(req,ww,text1=nil,text2=nil)
@conn = Faraday.new 'https://zombo.de/rest', :ssl => {:verify => false}
@conn.basic_auth(@username,@password)
@res = @conn.post do |request| if req == 'post'
@res = @conn.get do |request| if req == 'get'
 request.url ww
 request.headers['Content-Type'] = text1 unless text1 == nil
 request.body = text2 unless text2 == nil
end
puts @res.body
end

def send_csr
  send('post','csr','text/plain',"#{File.read(@csr[0..-5])}")
end

user2.send_csr

Answer 1

如果您稍微扩展一下代码会怎样？添加一些格式并更改进入两个 block 的内容？

def send(req, ww, text1=nil, text2=nil)
  @conn = Faraday.new 'https://zombo.de/rest', :ssl => {:verify => false}

  @conn.basic_auth(@username,@password)

  @res = @conn.post { |request| handle_request(request) } if req == 'post'
  @res = @conn.get { |request| handle_request(request) } if req == 'get'

  @res.body
end

def handle_request request
  request.url ww
  request.headers['Content-Type'] = text1 unless text1 == nil
  request.body = text2 unless text2 == nil
  request
end

def send_csr
  send('post','csr','text/plain',"#{File.read(@csr[0..-5])}")
end

user2.send_csr