mirror of
https://github.com/transloadit/uppy.git
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216 lines
8 KiB
HTML
216 lines
8 KiB
HTML
<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Uppy – AWS upload example</title>
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<link href="https://releases.transloadit.com/uppy/v3.10.0/uppy.min.css" rel="stylesheet">
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</head>
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<body>
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<h1>AWS upload example</h1>
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<div id="uppy"></div>
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<script type="module">
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import { Uppy, Dashboard, AwsS3 } from "https://releases.transloadit.com/uppy/v3.10.0/uppy.min.mjs"
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/**
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* This generator transforms a deep object into URL-encodable pairs
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* to work with `URLSearchParams` on the client and `body-parser` on the server.
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*/
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function* serializeSubPart(key, value) {
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if (typeof value !== "object") {
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yield [key, value];
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return;
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}
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if (Array.isArray(value)) {
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for (const val of value) {
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yield* serializeSubPart(`${key}[]`, val);
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}
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return;
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}
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for (const [subkey, val] of Object.entries(value)) {
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yield* serializeSubPart(key ? `${key}[${subkey}]` : subkey, val);
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}
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}
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function serialize(data) {
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// If you want to avoid preflight requests, use URL-encoded syntax:
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return new URLSearchParams(serializeSubPart(null, data))
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// If you don't care about additional preflight requests, you can also use:
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// return JSON.stringify(data)
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// You'd also have to add `Content-Type` header with value `application/json`.
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}
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{
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const MiB = 0x10_00_00;
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const uppy = new Uppy()
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.use(Dashboard, {
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inline: true,
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target: '#uppy',
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})
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.use(AwsS3, {
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// Files that are more than 100MiB should be uploaded in multiple parts.
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shouldUseMultipart: (file) => file.size > 100 * MiB,
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// ========== Non-Multipart Uploads ==========
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/**
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* This method tells Uppy how to handle non-multipart uploads.
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* If for some reason you want to only support multipart uploads,
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* you don't need to implement it.
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*/
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async getUploadParameters (file) {
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// Send a request to our Express.js signing endpoint.
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const response = await fetch('/sign-s3', {
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method: 'POST',
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headers: {
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accept: 'application/json',
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},
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body: serialize({
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filename: file.name,
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contentType: file.type,
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}),
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})
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if (!response.ok) throw new Error('Unsuccessful request', { cause: response })
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// Parse the JSON response.
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const data = await response.json()
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// Return an object in the correct shape.
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return {
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method: data.method,
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url: data.url,
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fields: {}, // For presigned PUT uploads, this should be left empty.
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// Provide content type header required by S3
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headers: {
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'Content-Type': file.type,
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},
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}
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},
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// ========== Multipart Uploads ==========
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// The following methods are only useful for multipart uploads:
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// If you are not interested in multipart uploads, you don't need to
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// implement them (you'd also need to set `shouldUseMultipart: false` though).
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async createMultipartUpload(file, signal) {
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if (signal?.aborted) {
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const err = new DOMException('The operation was aborted', 'AbortError')
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Object.defineProperty(err, 'cause', { __proto__: null, configurable: true, writable: true, value: signal.reason })
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throw err
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}
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const metadata = {}
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Object.keys(file.meta || {}).forEach(key => {
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if (file.meta[key] != null) {
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metadata[key] = file.meta[key].toString()
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}
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})
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const response = await fetch('/s3/multipart', {
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method: 'POST',
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// Send and receive JSON.
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headers: {
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accept: 'application/json',
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},
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body: serialize({
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filename: file.name,
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type: file.type,
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metadata,
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}),
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signal,
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})
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if (!response.ok) throw new Error('Unsuccessful request', { cause: response })
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// Parse the JSON response.
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const data = await response.json()
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return data
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},
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async abortMultipartUpload (file, { key, uploadId }, signal) {
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const filename = encodeURIComponent(key)
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const uploadIdEnc = encodeURIComponent(uploadId)
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const response = await fetch(`/s3/multipart/${uploadIdEnc}?key=${filename}`, {
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method: 'DELETE',
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signal,
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})
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if (!response.ok) throw new Error('Unsuccessful request', { cause: response })
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},
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async signPart (file, { uploadId, key, partNumber, signal }) {
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if (signal?.aborted) {
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const err = new DOMException('The operation was aborted', 'AbortError')
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Object.defineProperty(err, 'cause', { __proto__: null, configurable: true, writable: true, value: signal.reason })
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throw err
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}
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if (uploadId == null || key == null || partNumber == null) {
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throw new Error('Cannot sign without a key, an uploadId, and a partNumber')
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}
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const filename = encodeURIComponent(key)
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const response = await fetch(`/s3/multipart/${uploadId}/${partNumber}?key=${filename}`, { signal })
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if (!response.ok) throw new Error('Unsuccessful request', { cause: response })
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const data = await response.json()
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return data
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},
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async listParts (file, { key, uploadId }, signal) {
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if (signal?.aborted) {
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const err = new DOMException('The operation was aborted', 'AbortError')
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Object.defineProperty(err, 'cause', { __proto__: null, configurable: true, writable: true, value: signal.reason })
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throw err
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}
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const filename = encodeURIComponent(key)
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const response = await fetch(`/s3/multipart/${uploadId}?key=${filename}`, { signal })
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if (!response.ok) throw new Error('Unsuccessful request', { cause: response })
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const data = await response.json()
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return data
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},
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async completeMultipartUpload (file, { key, uploadId, parts }, signal) {
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if (signal?.aborted) {
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const err = new DOMException('The operation was aborted', 'AbortError')
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Object.defineProperty(err, 'cause', { __proto__: null, configurable: true, writable: true, value: signal.reason })
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throw err
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}
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const filename = encodeURIComponent(key)
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const uploadIdEnc = encodeURIComponent(uploadId)
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const response = await fetch(`s3/multipart/${uploadIdEnc}/complete?key=${filename}`, {
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method: 'POST',
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headers: {
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accept: 'application/json',
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},
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body: serialize({ parts }),
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signal,
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})
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if (!response.ok) throw new Error('Unsuccessful request', { cause: response })
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const data = await response.json()
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return data
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},
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})
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uppy.on('complete', (result) => {
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console.log('Upload complete! We’ve uploaded these files:', result.successful)
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})
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uppy.on('upload-success', (file, data) => {
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console.log('Upload success! We’ve uploaded this file:', file.meta['name'])
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})
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}
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</script>
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</body>
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</html>
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