问题描述
我想使用 Google Drive API V3 (javascript) 更新 Google 文档的内容:
I want to update the contents of a Google doc using the Google Drive API V3 (javascript):
https://developers.google.com/drive/v3/reference/文件/更新
我能够更新文件元数据(例如名称),但文档不包含实际文件内容的补丁语义.有没有办法在 gapi.client.drive.files.update 请求中将 JSON.stringify() 值作为参数传递:
I'm able to update the file metadata (such as the name) but the documentation doesn't include patch semantics for the actual file content. Is there a way to pass a JSON.stringify() value as a param in the gapi.client.drive.files.update request:
var request = gapi.client.drive.files.update({ 'fileId': fileId, 'name' : 'Updated File Name', 'uploadType': 'media', 'mimeType' : 'application/vnd.google-apps.document' }); var fulfilledCallback = function(fulfilled) { console.log("Update fulfilled!", fulfilled); }; var rejectedCallback = function(rejected) { console.log("Update rejected!", rejected); }; request.then(fulfilledCallback, rejectedCallback)
推荐答案
有两个问题:
- JavaScript 客户端库不支持媒体上传.
- Google 文档文件没有原生文件格式.
您可以通过在 XHR 之上编写自己的上传功能来解决问题 #1.以下代码应该适用于大多数现代网络浏览器:
You can work around issue #1 by writing your own upload functionality built on top of XHR. The following code should work on most modern web browsers:
function updateFileContent(fileId, contentBlob, callback) { var xhr = new XMLHttpRequest(); xhr.responseType = 'json'; xhr.onreadystatechange = function() { if (xhr.readyState != XMLHttpRequest.DONE) { return; } callback(xhr.response); }; xhr.open('PATCH', 'https://www.googleapis.com/upload/drive/v3/files/' + fileId + '?uploadType=media'); xhr.setRequestHeader('Authorization', 'Bearer ' + gapi.auth.getToken().access_token); xhr.send(contentBlob); }
要解决问题 #2,您可以向云端硬盘发送 Google Docs 可以从中导入的文件类型,例如 .txt、.docx 等.以下代码使用上述函数使用纯文本更新 Google Doc 的内容:
To work around issue #2 you can send Drive a file type that Google Docs can import from, such .txt, .docx, etc. The following code uses the function above to update the content of a Google Doc using plain text:
function run() { var docId = '...'; var content = 'Hello World'; var contentBlob = new Blob([content], { 'type': 'text/plain' }); updateFileContent(fileId, contentBlob, function(response) { console.log(response); }); }