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0.4.0 ... 0.8.0

Author SHA1 Message Date
2fe8cdb96a Added upload function which tracks progress
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2024-04-24 06:57:15 -04:00
34c2df7a1a Fixed import
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2024-04-23 09:09:07 -04:00
1d5509a078 Fixed export
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2024-04-23 09:03:51 -04:00
9f57b93a9f Download stream
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2024-04-23 09:02:10 -04:00
d0e9cbcaa6 Added download utilities
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2024-04-21 21:33:38 -04:00
67b314b507 Added download function using fetch and links
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2024-04-21 21:03:07 -04:00
f5d66f0d8f Fixed aset export
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2024-04-16 14:16:30 -04:00
5 changed files with 91 additions and 4 deletions

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@ -1,6 +1,6 @@
{ {
"name": "@ztimson/utils", "name": "@ztimson/utils",
"version": "0.4.0", "version": "0.8.0",
"description": "Utility library", "description": "Utility library",
"author": "Zak Timson", "author": "Zak Timson",
"license": "MIT", "license": "MIT",

53
src/download.ts Normal file
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@ -0,0 +1,53 @@
import {TypedEmitter, TypedEvents} from './emitter';
export type DownloadEvents = TypedEvents & {
complete: (blob: Blob) => any;
failed: (error: Error) => any;
progress: (progress: number) => any;
}
export function download(href: any, name: string) {
const a = document.createElement('a');
a.href = href;
a.download = name;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
}
/**
* Download a URL using fetch so progress can be tracked. Uses Typed Emitter to emit a "progress" &
* "complete" event.
*
* @param {string} url
* @param {string} downloadName
* @return {TypedEmitter<DownloadEvents>}
*/
export function downloadProgress(url: string, downloadName?: string) {
const progress = new TypedEmitter<DownloadEvents>();
fetch(url).then(response => {
if(!response.ok) return progress.emit('failed', new Error(response.statusText));
const contentLength = response.headers.get('Content-Length') || '0';
const total = parseInt(contentLength, 10);
let chunks: any[] = [], loaded = 0;
const reader = response.body?.getReader();
reader?.read().then(function processResult(result) {
if(result.done) {
const blob = new Blob(chunks);
if(downloadName) {
const url = URL.createObjectURL(blob);
download(url, downloadName);
URL.revokeObjectURL(url);
}
progress.emit('complete', blob);
} else {
const chunk = result.value;
chunks.push(chunk);
loaded += chunk.length;
progress.emit('progress', loaded / total);
reader.read().then(processResult);
}
});
}).catch(err => progress.emit('failed', err));
return progress;
}

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@ -1,5 +1,6 @@
export * from './array'; export * from './array';
export * from './aset.ts'; export * from './aset';
export * from './download';
export * from './emitter'; export * from './emitter';
export * from './errors'; export * from './errors';
export * from './logger'; export * from './logger';
@ -7,4 +8,5 @@ export * from './misc';
export * from './objects'; export * from './objects';
export * from './string'; export * from './string';
export * from './time'; export * from './time';
export * from './upload';
export * from './xhr'; export * from './xhr';

30
src/upload.ts Normal file
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@ -0,0 +1,30 @@
import {TypedEmitter, TypedEvents} from './emitter';
export type UploadEvents = TypedEvents & {
complete: () => any;
failed: (err: Error) => any;
progress: (progress: number) => any;
}
function uploadProgress(files : File | FileList, url: string) {
const xhr = new XMLHttpRequest();
const progress = new TypedEmitter<UploadEvents>();
const formData = new FormData();
(Array.isArray(files) ? files : [files])
.forEach(f => formData.append('file', f));
xhr.upload.addEventListener("progress", (event) => {
if(event.lengthComputable) progress.emit('progress', event.loaded / event.total);
});
xhr.onreadystatechange = () => {
if (xhr.readyState === 4) {
if(xhr.status >= 200 && xhr.status < 300) progress.emit('complete');
else progress.emit('failed', new Error(xhr.responseText));
}
};
xhr.open("POST", url, true);
xhr.send(formData);
return progress;
}

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@ -1,3 +1,4 @@
import {TypedEmitter, TypedEvents} from './emitter.ts';
import {clean} from './objects'; import {clean} from './objects';
export type Interceptor = (request: Response, next: () => void) => void; export type Interceptor = (request: Response, next: () => void) => void;
@ -7,6 +8,7 @@ export type RequestOptions = {
method?: 'GET' | 'POST' | 'PATCH' | 'DELETE'; method?: 'GET' | 'POST' | 'PATCH' | 'DELETE';
body?: any; body?: any;
headers?: {[key: string | symbol]: string | null | undefined}; headers?: {[key: string | symbol]: string | null | undefined};
skipConverting?: boolean;
[key: string]: any; [key: string]: any;
} }
@ -67,8 +69,8 @@ export class XHR {
} }
if(!resp.ok) throw new Error(resp.statusText); if(!resp.ok) throw new Error(resp.statusText);
if(resp.headers.get('Content-Type')?.startsWith('application/json')) return await resp.json(); if(!opts.skipConverting && resp.headers.get('Content-Type')?.startsWith('application/json')) return await resp.json();
if(resp.headers.get('Content-Type')?.startsWith('text/plain')) return await <any>resp.text(); if(!opts.skipConverting && resp.headers.get('Content-Type')?.startsWith('text/plain')) return await <any>resp.text();
return resp; return resp;
}); });
} }