Api Google应用程序脚本Basecamp从anothr项目创建附件

我想把附件从一个项目复制到另一个已经在basecamp上有附件的项目这里是我正在使用的代码

我在创建附件时遇到的问题我可以上载附件集，但无法使用正确的文件内容创建附件创建的文件内容错误，在我尝试操作时返回无效文件

我用过这个

谢谢

 function copyAttachements()
    {
     sourceProjectID=4683117;
     destinationProjectID=4683125;
     var url=getProjectURL(sourceProjectID);

     var unamepass=username+":"+password ;
     var digest = Utilities.base64Encode(unamepass);
     var digestfull = "Basic "+digest;

     var header={Authorization: digestfull};
     var option={ method : "get",muteHttpExceptions:true,headers : header,contentType :      "application/json"};
     var response=UrlFetchApp.fetch(url,option);

     if(String(response.getResponseCode())=="200")
     {
     var name,content;
     url=url.replace(".json","/attachments.json");
     var header={Authorization: digestfull};
     var option={ method : "get",muteHttpExceptions:true,headers : header,contentType : "application/json"};
     var response=UrlFetchApp.fetch(url,option);

     var jsonData=Utilities.jsonParse(response.getContentText());
     for(var j in jsonData)
     {
       var option={ method : "get",muteHttpExceptions:true,headers : header,contentType : "application/json"};
       var response=UrlFetchApp.fetch(url,option);

       content=UrlFetchApp.fetch(url,option).getContent();

       var url = "https://basecamp.com/"+BasecampID+"/api/v1/attachments.json";//getProjectURL(destinationProjectID);

       var data={"content": content,"Content-Length":jsonData[j].byte_size,"Content-Type":jsonData[j].content_type};
       var header={Authorization: digestfull};
       var payload = JSON.stringify(data); 

       var option={ method : "post",muteHttpExceptions:true,headers : header,payload:payload,contentType : "application/json"};
       var response=UrlFetchApp.fetch(url,option);  


       var url =getProjectURL(destinationProjectID);
       url=url.replace(".json","/uploads.json");
       var header={Authorization: digestfull};

       var data={"content": jsonData[j].content,
            "attachments": [{"token": Utilities.jsonParse(response.getContentText()).token, "name": jsonData[j].name}]};
       var payload = JSON.stringify(data); 
       var option={ method : "post",muteHttpExceptions:true,headers : header,payload:payload,contentType : "application/json"};
       var response=UrlFetchApp.fetch(url,option);  
         }
       }
       else
         Browser.msgBox("Error",response);
      } 

function copyAttachements()
{
  sourceProjectID=4683117;
  destinationProjectID=4683125;
  var url=getProjectURL(sourceProjectID);

  var unamepass=username+":"+password ;
  var digest = Utilities.base64Encode(unamepass);
  var digestfull = "Basic "+digest;

  var header={Authorization: digestfull};

  var option={ method : "get",muteHttpExceptions:true,headers : header,contentType : "application/json"};
  var response=UrlFetchApp.fetch(url,option);

  if(String(response.getResponseCode())=="200")
  {
    var name,content;

    url=url.replace(".json","/attachments.json");

    var header={Authorization: digestfull};
    var option={ method : "get",muteHttpExceptions:true,headers : header,contentType : "application/json"};
    var response=UrlFetchApp.fetch(url,option);

    var jsonData=Utilities.jsonParse(response.getContentText()).reverse();
    for(var j in jsonData)
    {
      url=jsonData[j].url;    
      var option={ method : "get",muteHttpExceptions:true,headers : header,contentType : "application/json"};

 /**********************Changes Done here*********************************/
      content=UrlFetchApp.fetch(url,option).getContent();
      var url ="https://basecamp.com/"+BasecampID+"/api/v1/attachments.json";
      var header={Authorization: digestfull};
      var option={ method : "post",muteHttpExceptions:true,headers : header,payload:content,contentType : jsonData[j].content_type};
/***********************************************************************/
      var response=UrlFetchApp.fetch(url,option);  
      var url =getProjectURL(destinationProjectID);
      url=url.replace(".json","/uploads.json");
      var header={Authorization: digestfull};
      var token=Utilities.jsonParse(response.getContentText()).token
      var data={"attachments": [{"token":token, "name": jsonData[j].name}]};
      var payload = JSON.stringify(data); 
      var option={ method : "post",muteHttpExceptions:true,headers : header,payload:payload,contentType : "application/json"};
      var response=UrlFetchApp.fetch(url,option);  
    }
  }
  else
    Browser.msgBox("Error",response);
}