1
我的目標是解決PUT操作中的「丟失更新問題」(請參閱http://www.w3.org/1999/04/Editing/)。 我正在使用sinatra,並且作爲客戶端使用rest_client。我如何檢查它是否有效?我的客戶總是返回200個代碼。我是否使用正確調用它的參數? (把自己的作品)sinatra rest-client etag
西納特拉代碼:
put '/players/:id' do |id|
etag 'something'
if Player[id].nil? then
halt 404
end
begin
data = JSON.parse(params[:data])
pl = Player[id]
pl.name = data['name']
pl.position = data['position']
if pl.save
"Resource modified."
else
status 412
redirect '/players'
end
rescue Sequel::DatabaseError
409 #Conflict - The request was unsuccessful due to a conflict in the state of the resource.
rescue Exception => e
400
puts e.message
end
end
客戶端調用:
player = {"name" => "John Smith", "position" => "def"}.to_json
RestClient.put('http://localhost:4567/players/1', {:data => player, :content_type => :json, :if_none_match => '"something"'}){ |response, request, result, &block|
p response.code.to_s + " " + response
}
我想已經把:if_none_match => 「東西」,我想:if_match。沒有什麼變化。 如何將標題放入RestClient請求? 如何獲得不同於200的身份? (即304未修改)?