问题描述
我正在尝试使用这个@azure/storage-file-share node Js 客户端库将大文件(0 到 100mb)上传到 azure 文件共享。
小于 4 MB 的小文件效果很好,但更多的是会引发错误(contentLength 必须 > 0 且
我的有效负载在可读流中,并且我在库中使用方法 uploadRange
这是下面的代码
{
method: "POST",path: `${apiBase}/mount`,config: {
description: "uploadFile",tags: ["api","file"],notes: ["upload a file"],auth: {
strategy: "jwt",mode: options.session.auth,access: {
scope: options.session.scope,},payload: {
maxBytes: 1024 * 1024 * 200,multipart: true,parse: true,output: "stream",allow: "multipart/form-data",timeout: {
server: 10 * 60 * 1000,socket: 12 * 60 * 1000,response: {
status: {
200: Joi.object({
status: Joi.string(),fileUrl: Joi.string(),date: Joi.number(),}),422: Joi.object({
statusCode: Joi.number().integer(),error: Joi.string(),message: Joi.string(),503: Joi.object({
statusCode: Joi.number().integer(),handler: async (request,h) => {
if (!request.auth.credentials) {
throw Boom.unauthorized("unexpected unauthorized error");
}
try {
const azureDirectory = azure.sanitizeContainerName(
request.auth.credentials.userId
);
const azureFileStream = request.payload.file;
const r = await azure.uploadFiletoVolume({
azureFileServiceClient: options.azureFileServiceClient,azureFileVolumeMount: options.azureFileVolumeMount,azureFileStream,azureDirectory,});
if (r.errorCode) {
throw Boom.badData(
`file upload error due to azure error ${r.errorCode}` +
`\n${JSON.stringify(r)}`
);
}
return h.response({
status: "ok",fileUrl:
options.azureFileServiceClient.url +
azureDirectory +
// encode file name
`/${encodeURIComponent(azureFileStream.hapi.filename)}`,date: new Date(r.lastModified).getTime(),});
} catch (e) {
throw Boom.serverUnavailable(`file upload error ${e}`);
}
},}
exports.uploadFiletoVolume = async ({
azureFileServiceClient,azureFileVolumeMount,}) => {
const directoryClient = await azureFileServiceClient
.getShareClient(azureFileVolumeMount)
.getDirectoryClient(azureDirectory);
if (!(await directoryClient.exists())) {
// create azure directory by userid if not exists
await azureFileServiceClient
.getShareClient(azureFileVolumeMount)
.createDirectory(azureDirectory);
}
const content = azureFileStream._data;
const fileName = encodeURIComponent(azureFileStream.hapi.filename);
const fileClient = directoryClient.getFileClient(fileName);
await fileClient.create(content.length);
return await fileClient.uploadRange(content,content.length);
};
任何人都可以帮助我在库中找到正确的方法来发送文件,我尝试使用 uploadStream 但它没有用。
解决方法
您收到此错误的原因是 uploadRange
允许的最大内容大小为 4MB。 uploadRange
操作映射到 Put Range
REST API 操作,限制来自 REST API 端(请参阅请求标头部分中 Range or x-ms-range
的说明)。
您需要做的是读取内容块,然后使用这些块重复调用 uploadRange
方法。读取chunk时,必须保证读取的chunk最大不超过4MB。