使用 Apps Script API 执行函数

问题描述

我正在尝试使用 Apps Script API 执行 Apps Script 功能。为此，我使用 Google here 的说明设置了目标脚本和调用脚本（JavaScript 代码）。

我完全按照描述的方式进行操作，但出现以下错误。

调用脚本时出错：

ReferenceError: gapi 未定义
手动运行函数“getFoldersUnderRoot()”时目标脚本出错

异常：很抱歉，发生服务器错误。请稍等，然后重试。

函数“getFoldersUnderRoot()”在将目标脚本连接到 GCP 项目之前运行正常。

感谢任何帮助指出我做错了什么。

解决方法

我想出了如何使用 Apps Script API 执行 App Script 函数。所以我发布答案是为了他人的利益。此外，我会尝试插入 Google 未在其说明中提供的缺失信息。

目标脚本是一个应用程序脚本（例如“code.gs”）文件，其中包含要执行的所需功能。此脚本必须附加到启用了 App Script API 的 GCP 项目。

调用脚本必须是保存在本地文件夹中的 html 文件，而不是 App 脚本文件。下面是一个例子“index.html”，它调用了两个函数“callScriptFunction()”和“getSheets()”。

 <!DOCTYPE html>
 <html>
 <head>
    <title>Google Apps Script API Quickstart</title>
    <meta charset="utf-8" />
  </head>
  <body>
   <p>Google Apps Script API Quickstart</p>

 <!--Add buttons to initiate auth sequence and sign out-->
 <button id="authorize_button" style="display: none;">Authorize</button>
 <button id="signout_button" style="display: none;">Sign Out</button>

 <pre id="content" style="white-space: pre-wrap;"></pre>

 <script type="text/javascript">
   // Client ID and API key from the Developer Console
   var CLIENT_ID = 'YOUR_CLIENT_ID';
   var API_KEY = 'YOUR_API_KEY';

   // Array of API discovery doc URLs for APIs used by the quickstart
   var DISCOVERY_DOCS = ["https://script.googleapis.com/$discovery/rest?version=v1"];

   // Authorization scopes required by the API; multiple scopes can be
   // included,separated by spaces.
   var SCOPES = 'https://www.googleapis.com/auth/spreadsheets https://www.googleapis.com/auth/drive.readonly';

   var authorizeButton = document.getElementById('authorize_button');
   var signoutButton = document.getElementById('signout_button');

   /**
    *  On load,called to load the auth2 library and API client library.
    */
   function handleClientLoad() {
     gapi.load('client:auth2',initClient);
   }

   /**
    *  Initializes the API client library and sets up sign-in state
    *  listeners.
    */
   function initClient() {
     gapi.client.init({
       apiKey: API_KEY,clientId: CLIENT_ID,discoveryDocs: DISCOVERY_DOCS,scope: SCOPES
     }).then(function () {
       // Listen for sign-in state changes.
       gapi.auth2.getAuthInstance().isSignedIn.listen(updateSigninStatus);

       // Handle the initial sign-in state.
       updateSigninStatus(gapi.auth2.getAuthInstance().isSignedIn.get());
       authorizeButton.onclick = handleAuthClick;
       signoutButton.onclick = handleSignoutClick;
     },function(error) {
       appendPre(JSON.stringify(error,null,2));
     });
   }

   /**
    *  Called when the signed in status changes,to update the UI
    *  appropriately. After a sign-in,the API is called.
    */
   function updateSigninStatus(isSignedIn) {
     if (isSignedIn) {
       authorizeButton.style.display = 'none';
       signoutButton.style.display = 'block';
    //   callScriptFunction();
       getSheets();
     } else {
       authorizeButton.style.display = 'block';
       signoutButton.style.display = 'none';
     }
   }

   /**
    *  Sign in the user upon button click.
    */
   function handleAuthClick(event) {
     gapi.auth2.getAuthInstance().signIn();
   }

   /**
    *  Sign out the user upon button click.
    */
   function handleSignoutClick(event) {
     gapi.auth2.getAuthInstance().signOut();
   }

   /**
    * Append a pre element to the body containing the given message
    * as its text node. Used to display the results of the API call.
    *
    * @param {string} message Text to be placed in pre element.
    */
   function appendPre(message) {
     var pre = document.getElementById('content');
     var textContent = document.createTextNode(message + '\n');
     pre.appendChild(textContent);
   }

   /**
    * Shows basic usage of the Apps Script API.
    *
    * Call the Apps Script API to create a new script project,upload files
    * to the project,and log the script's URL to the user.
    */
   function callScriptFunction() {
  var scriptId = "TARGET_SCRIPT_ID";

 // Call the Apps Script API run method
 //   'scriptId' is the URL parameter that states what script to run
 //   'resource' describes the run request body (with the function name
 //              to execute)
 gapi.client.script.scripts.run({
 'scriptId': scriptId,'resource': {
   'function': 'getFoldersUnderRoot','devMode': true
    }
 }).then(function(resp) {
   var result = resp.result;
   if (result.error && result.error.status) {
   // The API encountered a problem before the script
   // started executing.
   appendPre('Error calling API:');
   appendPre(JSON.stringify(result,2));
 } else if (result.error) {
   // The API executed,but the script returned an error.

   // Extract the first (and only) set of error details.
   // The values of this object are the script's 'errorMessage' and
   // 'errorType',and an array of stack trace elements.
   var error = result.error.details[0];
   appendPre('Script error message: ' + error.errorMessage);

   if (error.scriptStackTraceElements) {
     // There may not be a stacktrace if the script didn't start
     // executing.
     appendPre('Script error stacktrace:');
     for (var i = 0; i < error.scriptStackTraceElements.length; i++) {
       var trace = error.scriptStackTraceElements[i];
       appendPre('\t' + trace.function + ':' + trace.lineNumber);
     }
   }
 } else {
   // The structure of the result will depend upon what the Apps
   // Script function returns. Here,the function returns an Apps
   // Script Object with String keys and values,and so the result
   // is treated as a JavaScript object (folderSet).

   var folderSet = result.response.result;
   if (Object.keys(folderSet).length == 0) {
       appendPre('No folders returned!');
   } else {
     appendPre('Folders under your root folder:');
     Object.keys(folderSet).forEach(function(id){
       appendPre('\t' + folderSet[id] + ' (' + id  + ')');
     });
     }
   }
 });
 }



  function getSheets() {

   // ID of the script to call. Acquire this from the Apps Script editor,// under Publish > Deploy as API executable.
   var scriptId = "TARGET_SCRIPT_ID";

  // Initialize parameters for function call.
  var sheetId = "SPREADSHEET_ID";


 gapi.client.script.scripts.run({
   'scriptId': scriptId,'resource': {
   'function': 'getSheetNames','parameters': [sheetId],'devMode': true
 }
 }).then(function(resp) {
 var result = resp.result;
 if (result.error && result.error.status) {
   // The API encountered a problem before the script
   // started executing.
   appendPre('Error calling API:');
   appendPre(JSON.stringify(result,and so the result
   // is treated as a JavaScript object (folderSet).

   var names = result.response.result;
   if (Object.keys(names).length == 0) {
       appendPre('No sheetnames returned!');
   } else {
     appendPre(names);
   }
  }
 });  
}

 </script>

 <script async defer src="https://apis.google.com/js/api.js"
   onload="this.onload=function(){};handleClientLoad()"
   onreadystatechange="if (this.readyState === 'complete') this.onload()">
 </script>
  </body>
 </html>

下面是一个目标脚本的例子。

  function getFoldersUnderRoot() {
   var root = DriveApp.getRootFolder();
   var folders = root.getFolders();
   var folderSet = {};
   while (folders.hasNext()) {
     var folder = folders.next();
     folderSet[folder.getId()] = folder.getName();
   }
   return folderSet;
  }

  function getSheetNames(sheetId) {
       var ss = SpreadsheetApp.openById(sheetId);
       var sheets = ss.getSheets();
       var names = sheets.map(function(sheet) {
         return sheet.getName();
       })
       return names;
     }

从终端切换到工作目录并执行python3 -m http.server 8000。打开浏览器并加载“http://localhost:8000/”。授权并继续。
您需要在项目凭据中将“http://localhost:8000/”列入白名单
您需要在项目的 OAuth 同意屏幕中添加所需的范围。

我能够执行函数“getSheetNames()”但“getFoldersUnderRoot()”抛出错误：Exception: We're sorry,a server error occurred. Please wait a bit and try again. 从脚本编辑器执行也给出同样的错误。但是，“getFoldersUnderRoot()”可在未附加到 GCP 项目的任何其他脚本上执行

google-apps-script google-apps-script-api

使用 Apps Script API 执行函数

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