Google apps script 来自触发器的Gmail API message.list

我在创建每天晚上运行的google脚本时遇到了问题。当我从脚本文件运行代码时，代码运行良好，并表现出预期的行为，但是当由安装的触发器执行时，我得到以下结果：

TypeError:无法从undefined中读取属性“length”。（第17行，文件“主”）

编辑：要清楚，我知道使用的特定查询必须返回结果，因为从脚本编辑器运行相同的脚本工作正常

代码：

function doGet(query) {
  var sSheet = sheetSelect(),  //calls spreadsheet selection function and assigns the spreadsheet to variable
      queriedMessages,         //object to store the queried messages list
      pageToken,               //string token value that will be pulled from the queredMessages
      auth = 'me';

  if (!query) query = 'in:all newer_than:1d -is:chats -in:trash';
  do {
    queriedMessages = Gmail.Users.Messages.list(auth, {'q':query, 'pageToken':pageToken});  //callls the Gmail API to query messages
    dataOutput(sSheet, queriedMessages.messages, queriedMessages.messages.length);          //calls function to output all data to spreadsheet from the current list
        pageToken = queriedMessages.nextPageToken;                                              //gets the next page token from the list
      }

  while (pageToken);                                                                        //the loop is executed until there are no more next page tokens left
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1d

{
 "messages": [
    {
     "id": "150612f9d7f83db9",
     "threadId": "150611d4e92b7a5f"
    }, ...
  ]
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1s

{
 "resultSizeEstimate": 0
}

你知道为什么它的行为如此不同吗？我已尝试为特定电子邮件提供用户ID。似乎这可能是某种身份验证问题，但我不知道如何解决它，除了忘记Gmail API，转而使用Gmail应用程序，因为这似乎是Gmail API方法消息的问题。list（）

提前感谢您的帮助

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我设法解决了这个问题。问题是我想留下一个选项来传递带有函数调用的查询。问题是，已安装的触发器实际上将一个变量传递给查询变量，然后不设置新的变量。

我认为这要简单得多。如果我在最后一天列出邮件，我会得到：

请求：

function doGet(query) {
  var sSheet = sheetSelect(),  //calls spreadsheet selection function and assigns the spreadsheet to variable
      queriedMessages,         //object to store the queried messages list
      pageToken,               //string token value that will be pulled from the queredMessages
      auth = 'me';

  if (!query) query = 'in:all newer_than:1d -is:chats -in:trash';
  do {
    queriedMessages = Gmail.Users.Messages.list(auth, {'q':query, 'pageToken':pageToken});  //callls the Gmail API to query messages
    dataOutput(sSheet, queriedMessages.messages, queriedMessages.messages.length);          //calls function to output all data to spreadsheet from the current list
        pageToken = queriedMessages.nextPageToken;                                              //gets the next page token from the list
      }

  while (pageToken);                                                                        //the loop is executed until there are no more next page tokens left
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1d

{
 "messages": [
    {
     "id": "150612f9d7f83db9",
     "threadId": "150611d4e92b7a5f"
    }, ...
  ]
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1s

{
 "resultSizeEstimate": 0
}

响应：

function doGet(query) {
  var sSheet = sheetSelect(),  //calls spreadsheet selection function and assigns the spreadsheet to variable
      queriedMessages,         //object to store the queried messages list
      pageToken,               //string token value that will be pulled from the queredMessages
      auth = 'me';

  if (!query) query = 'in:all newer_than:1d -is:chats -in:trash';
  do {
    queriedMessages = Gmail.Users.Messages.list(auth, {'q':query, 'pageToken':pageToken});  //callls the Gmail API to query messages
    dataOutput(sSheet, queriedMessages.messages, queriedMessages.messages.length);          //calls function to output all data to spreadsheet from the current list
        pageToken = queriedMessages.nextPageToken;                                              //gets the next page token from the list
      }

  while (pageToken);                                                                        //the loop is executed until there are no more next page tokens left
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1d

{
 "messages": [
    {
     "id": "150612f9d7f83db9",
     "threadId": "150611d4e92b7a5f"
    }, ...
  ]
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1s

{
 "resultSizeEstimate": 0
}

如果我在最后一秒钟列出邮件，我会得到：

请求：

function doGet(query) {
  var sSheet = sheetSelect(),  //calls spreadsheet selection function and assigns the spreadsheet to variable
      queriedMessages,         //object to store the queried messages list
      pageToken,               //string token value that will be pulled from the queredMessages
      auth = 'me';

  if (!query) query = 'in:all newer_than:1d -is:chats -in:trash';
  do {
    queriedMessages = Gmail.Users.Messages.list(auth, {'q':query, 'pageToken':pageToken});  //callls the Gmail API to query messages
    dataOutput(sSheet, queriedMessages.messages, queriedMessages.messages.length);          //calls function to output all data to spreadsheet from the current list
        pageToken = queriedMessages.nextPageToken;                                              //gets the next page token from the list
      }

  while (pageToken);                                                                        //the loop is executed until there are no more next page tokens left
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1d

{
 "messages": [
    {
     "id": "150612f9d7f83db9",
     "threadId": "150611d4e92b7a5f"
    }, ...
  ]
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1s

{
 "resultSizeEstimate": 0
}

响应：

function doGet(query) {
  var sSheet = sheetSelect(),  //calls spreadsheet selection function and assigns the spreadsheet to variable
      queriedMessages,         //object to store the queried messages list
      pageToken,               //string token value that will be pulled from the queredMessages
      auth = 'me';

  if (!query) query = 'in:all newer_than:1d -is:chats -in:trash';
  do {
    queriedMessages = Gmail.Users.Messages.list(auth, {'q':query, 'pageToken':pageToken});  //callls the Gmail API to query messages
    dataOutput(sSheet, queriedMessages.messages, queriedMessages.messages.length);          //calls function to output all data to spreadsheet from the current list
        pageToken = queriedMessages.nextPageToken;                                              //gets the next page token from the list
      }

  while (pageToken);                                                                        //the loop is executed until there are no more next page tokens left
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1d

{
 "messages": [
    {
     "id": "150612f9d7f83db9",
     "threadId": "150611d4e92b7a5f"
    }, ...
  ]
}

GET https://www.googleapis.com/gmail/v1/users/me/messages?q=newer_than%3A1s

{
 "resultSizeEstimate": 0
}

---

换句话说，

queryedmessages.messages

如果在该特定查询中没有收到任何消息，则

queryedmessages.messages.length

将导致错误。

但是该特定查询应返回消息。我试图从编辑器中运行脚本，然后在一分钟后触发。当通过触发器运行时，它不返回任何内容，但从编辑器运行时，它返回63条消息。如果我指定我的电子邮件而不是使用“我”标识符，则触发器似乎没有以用户身份运行应用程序，或者没有身份验证来查看用户的电子邮件