我正在尝试调用发送大于50Mb图像的Google云端功能。云功能的目的是调整图像大小并将其上传到谷歌云存储。
但是,当我将HTTP帖子发送到我的云功能时,我收到以下错误:413请求实体太大
有没有人对此错误有任何解决方法?我可以增加http请求大小限制吗?
答案 0 :(得分:2)
HTTP触发器上载和下载有效负载大小的限制为documented at 10MB。没有办法增加此限制,但您可以file a feature request解释为什么应该增加限制。
答案 1 :(得分:0)
您可以让客户端直接上传到存储。 authinticated到他自己的用户文件夹和安全规则,将文件大小限制为你想要的任何大小的临时文件夹。
然后让云功能触发器开始调整图像大小。 并在完成后删除原始图像。
我附上了我的代码示例 - 你应该在转换后添加一个文件删除...
/**
* When an image is uploaded in the Storage bucket We generate a thumbnail automatically using
* ImageMagick.
* After the thumbnail has been generated and uploaded to Cloud Storage,
* we write the public URL to the Firebase Realtime Database.
*/
exports.generateThumbnail = functions.storage.object().onFinalize((object) => {
console.log('Generated Started');
// File and directory paths.
const filePath = object.name;
const contentType = object.contentType; // This is the image MIME type
const fileDir = path.dirname(filePath);
const fileName = path.basename(filePath);
const thumbFilePath = path.normalize(path.join(fileDir, `${THUMB_PREFIX}${fileName}`));
const tempLocalFile = path.join(os.tmpdir(), filePath);
const tempLocalDir = path.dirname(tempLocalFile);
const tempLocalThumbFile = path.join(os.tmpdir(), thumbFilePath);
// Exit if this is triggered on a file that is not an image.
if (!contentType.startsWith('image/')) {
console.log('This is not an image.');
deleteImage(filename);
return null;
}
// Exit if the image is already a thumbnail.
if (fileName.startsWith(THUMB_PREFIX)) {
console.log('Already a Thumbnail.');
deleteImage(filename);
return null;
}
// Cloud Storage files.
const bucket = gcs.bucket(object.bucket);
const file = bucket.file(filePath);
const thumbFile = bucket.file(thumbFilePath);
const metadata = {
contentType: contentType,
// To enable Client-side caching you can set the Cache-Control headers here. Uncomment below.
'Cache-Control': 'public,max-age=3600',
};
// Create the temp directory where the storage file will be downloaded.
return mkdirp(tempLocalDir).then(() => {
console.log('DL Started');
// Download file from bucket.
return file.download({
destination: tempLocalFile
});
}).then(() => {
console.log('The file has been downloaded to', tempLocalFile);
// Generate a thumbnail using ImageMagick.
return spawn('convert', [tempLocalFile, '-thumbnail', `${THUMB_MAX_WIDTH}x${THUMB_MAX_HEIGHT}>`, tempLocalThumbFile], {
capture: ['stdout', 'stderr']
});
}).then(() => {
console.log('Thumbnail created at', tempLocalThumbFile);
// Uploading the Thumbnail.
return bucket.upload(tempLocalThumbFile, {
destination: thumbFilePath,
metadata: metadata
});
}).then(() => {
console.log('Thumbnail uploaded to Storage at', thumbFilePath);
// Once the image has been uploaded delete the local files to free up disk space.
fs.unlinkSync(tempLocalFile);
fs.unlinkSync(tempLocalThumbFile);
// Get the Signed URLs for the thumbnail and original image.
const config = {
action: 'read',
expires: '03-01-2500',
};
return Promise.all([
thumbFile.getSignedUrl(config),
// file.getSignedUrl(config),
]);
}).then((results) => {
console.log('Got Signed URLs.');
const thumbResult = results[0];
// const originalResult = results[1];
const thumbFileUrl = thumbResult[0];
// const fileUrl = originalResult[0];
// Add the URLs to the Database
const uid = getUidFromFilePath(fileDir);
if (!uid) return null;
return Promise.all([
admin.auth().updateUser(uid, {
photoURL: thumbFileUrl
}),
admin.database().ref(`/users/${uid}/profile/photoURL`).set(thumbFileUrl)
]);
}).then(() => console.log('Thumbnail URLs saved to database.'));
});