我有一个表单，它接受文件并使用会话上传传递到 Dropbox。我已将代码包装在 Fastify 服务器中，但总是在附加中出现错误：
{"error_summary": "closed/..", "error": {".tag": "closed"}}.
这是 Fastify 服务器：
require("dotenv").config()
const https = require("https")
const JSONbig = require("json-bigint")
const TOKEN = process.env.DROPBOX_ACCESS_TOKEN
const fastify = require("fastify")({
logger: {
level: "info"
}
})
fastify.addContentTypeParser("*", function (req, done) {
done()
})
// Promisify https request
const httpRequest = (url, options, data) => {
return new Promise((resolve, reject) => {
const req = https.request(url, options, (res) => {
let body = ""
res.on("data", (chunk) => {
console.log("SDSDSDSDASDASDSAD")
body += chunk.toString()
})
res.on("error", reject)
res.on("end", () => {
if (res.statusCode >= 200 && res.statusCode <= 299) {
resolve({ statusCode: res.statusCode, headers: res.headers, body: JSON.parse(body) })
} else {
reject("Request failed. status: " + res.statusCode + ", body: " + body)
}
})
})
req.on("error", reject)
if (data) req.write(data)
req.end()
})
}
fastify.register(require("fastify-cors"))
fastify.post("/", async (req, reply) => {
const stream = req.raw
const initResponse = await httpRequest(
"https://content.dropboxapi.com/2/files/upload_session/start",
{
method: "post",
headers: {
Authorization: `Bearer ${TOKEN}`,
"Dropbox-API-Arg": JSON.stringify({
close: false
}),
"Content-Type": "application/octet-stream"
}
}
)
const sessionId = initResponse.body.session_id
req.log.info(`Initiating session ${sessionId}`)
let offset = 0
stream.on("data", async (chunk) => {
req.log.info("Sending chunk")
stream.pause()
const appendResponse = await httpRequest(
`https://content.dropboxapi.com/2/files/upload_session/append_v2`,
{
method: "post",
headers: {
Authorization: `Bearer ${TOKEN}`,
"Dropbox-API-Arg": JSONbig.stringify({
cursor: {
session_id: sessionId,
offset
},
close: false
}),
"Content-Type": "application/octet-stream"
}
},
chunk
)
stream.resume()
offset += chunk.length
})
stream.on("end", async () => {
const terminateResponse = await httpRequest(
`https://content.dropboxapi.com/2/files/upload_session/finish`,
{
method: "post",
headers: {
Authorization: `Bearer ${TOKEN}`,
"Dropbox-API-Arg": JSONbig.stringify({
cursor: {
session_id: sessionId,
offset: offset
},
commit: {
path: "/Upload/test-large.txt",
mode: "add",
autorename: true,
mute: false,
strict_conflict: false
}
}),
"Content-Type": "application/octet-stream"
}
}
)
req.log.info("upload session finished")
reply.code(204).send()
})
})
fastify.listen(3000, (err) => {
if (err) {
fastify.log.fatal(err)
process.exit(1)
}
console.log(`server listening on ${fastify.server.address().port}`)
})
这是表格：
<!DOCTYPE html>
<!-- Coding By CodingNepal - youtube.com/codingnepal -->
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>File Upload with Progress Bar | CodingNepal</title>
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css"
/>
<style>
/* Import Google font - Poppins */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap");
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: "Poppins", sans-serif;
}
body {
display: flex;
align-items: center;
justify-content: center;
min-height: 100vh;
background: #6990f2;
}
::selection {
color: #fff;
background: #6990f2;
}
.wrapper {
width: 430px;
background: #fff;
border-radius: 5px;
padding: 30px;
box-shadow: 7px 7px 12px rgba(0, 0, 0, 0.05);
}
.wrapper header {
color: #6990f2;
font-size: 27px;
font-weight: 600;
text-align: center;
}
.wrapper form {
height: 167px;
display: flex;
cursor: pointer;
margin: 30px 0;
align-items: center;
justify-content: center;
flex-direction: column;
border-radius: 5px;
border: 2px dashed #6990f2;
}
form :where(i, p) {
color: #6990f2;
}
form i {
font-size: 50px;
}
form p {
margin-top: 15px;
font-size: 16px;
}
section .row {
margin-bottom: 10px;
background: #e9f0ff;
list-style: none;
padding: 15px 20px;
border-radius: 5px;
display: flex;
align-items: center;
justify-content: space-between;
}
section .row i {
color: #6990f2;
font-size: 30px;
}
section .details span {
font-size: 14px;
}
.progress-area .row .content {
width: 100%;
margin-left: 15px;
}
.progress-area .details {
display: flex;
align-items: center;
margin-bottom: 7px;
justify-content: space-between;
}
.progress-area .content .progress-bar {
height: 6px;
width: 100%;
margin-bottom: 4px;
background: #fff;
border-radius: 30px;
}
.content .progress-bar .progress {
height: 100%;
width: 0%;
background: #6990f2;
border-radius: inherit;
}
.uploaded-area {
max-height: 232px;
overflow-y: scroll;
}
.uploaded-area.onprogress {
max-height: 150px;
}
.uploaded-area::-webkit-scrollbar {
width: 0px;
}
.uploaded-area .row .content {
display: flex;
align-items: center;
}
.uploaded-area .row .details {
display: flex;
margin-left: 15px;
flex-direction: column;
}
.uploaded-area .row .details .size {
color: #404040;
font-size: 11px;
}
.uploaded-area i.fa-check {
font-size: 16px;
}
</style>
</head>
<body>
<div class="wrapper">
<header>File Uploader JavaScript</header>
<form action="#">
<input class="file-input" type="file" name="file" hidden />
<i class="fas fa-cloud-upload-alt"></i>
<p>Browse File to Upload</p>
</form>
<section class="progress-area"></section>
<section class="uploaded-area"></section>
</div>
<script>
const form = document.querySelector("form"),
fileInput = document.querySelector(".file-input"),
progressArea = document.querySelector(".progress-area"),
uploadedArea = document.querySelector(".uploaded-area")
// form click event
form.addEventListener("click", () => {
fileInput.click()
})
fileInput.onchange = ({ target }) => {
let file = target.files[0] //getting file [0] this means if user has selected multiple files then get first one only
if (file) {
let fileName = file.name //getting file name
if (fileName.length >= 12) {
//if file name length is greater than 12 then split it and add ...
let splitName = fileName.split(".")
fileName = splitName[0].substring(0, 13) + "... ." + splitName[1]
}
uploadFile(fileName) //calling uploadFile with passing file name as an argument
}
}
// file upload function
function uploadFile(name) {
let xhr = new XMLHttpRequest() //creating new xhr object (AJAX)
xhr.open("POST", "http://localhost:3000") //sending post request to the specified URL
xhr.upload.addEventListener("progress", ({ loaded, total }) => {
//file uploading progress event
let fileLoaded = Math.floor((loaded / total) * 100) //getting percentage of loaded file size
let fileTotal = Math.floor(total / 1000) // getting total file size in KB from bytes
let fileSize
// if file size is less than 1024 then add only KB else convert this KB into MB
fileTotal < 1024
? (fileSize = fileTotal + " KB")
: (fileSize = (loaded / (1024 * 1024)).toFixed(2) + " MB")
let progressHTML = `<li class="row">
<i class="fas fa-file-alt"></i>
<div class="content">
<div class="details">
<span class="name">${name} • Uploading</span>
<span class="percent">${fileLoaded}%</span>
</div>
<div class="progress-bar">
<div class="progress" style="width: ${fileLoaded}%"></div>
</div>
</div>
</li>`
// uploadedArea.innerHTML = ""; //uncomment this line if you don't want to show upload history
uploadedArea.classList.add("onprogress")
progressArea.innerHTML = progressHTML
if (loaded == total) {
progressArea.innerHTML = ""
let uploadedHTML = `<li class="row">
<div class="content upload">
<i class="fas fa-file-alt"></i>
<div class="details">
<span class="name">${name} • Uploaded</span>
<span class="size">${fileSize}</span>
</div>
</div>
<i class="fas fa-check"></i>
</li>`
uploadedArea.classList.remove("onprogress")
// uploadedArea.innerHTML = uploadedHTML; //uncomment this line if you don't want to show upload history
uploadedArea.insertAdjacentHTML("afterbegin", uploadedHTML) //remove this line if you don't want to show upload history
}
})
let data = new FormData(form) //FormData is an object to easily send form data
xhr.send(data) //sending form data
}
</script>
</body>
</html>
是否需要在数据库上创建应用程序来获取 oauth 令牌来运行示例。
有人看到这里的问题吗？我已经在网上研究了许多示例，但所有示例都假设我使用的是一些虚拟静态文件，而不是传入的上传文件。
好吧，明白了。基本上在我的示例中，我在
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