Network API Capabilities Summary for Mini Programs (Part 2)
UploadFileTask
UploadFileTask.abort
Aborts an upload task.
Parameters
Object object
Callback functions for aborting the upload task.
Callback Parameters Object res
Property
Type
Default
Required
Description
complete
function
No
Callback function when the interface call ends (executed on both success and failure).
success
function
No
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Posted on Sat, 01 Aug 2026 16:35:43 +0000 by surfer
Downloading Images and Stream Files with JavaScript
Downloading Images Using Base64 Conversion
To download an image from a URL, convert it to a base64 string using a canvas element:
function convertImageToBase64(imageElement) {
const canvas = document.createElement('canvas');
canvas.width = imageElement.width;
canvas.height = imageElement.height;
const context = canvas.getContext('2d');
...
Posted on Thu, 07 May 2026 15:45:39 +0000 by clay1