sa-image-utils

Node image utilities

code base

TypeScript

main methods

getRawImageFromUrl (return the buffer and a string with the content-type extracted from the response header) rawImageToBase64 (convert the buffer to base64 format, i.e. data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPAAAA...)

# example using vanilla JS (node)

var {
    saImageUtils 
} = require("sa-image-utils");
const imageUrl = 'https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/JavaScript-logo.png/240px-JavaScript-logo.png';
 
// get raw image info (this contains the buffer and contentType)
SaImageUtils.getRawImageFromUrl(imageUrl)
.then((rawImageInfo) => {
  const { buffer, contentType } = rawImageInfo;
 
  console.info('typeof buffer', typeof buffer);
  console.info('buffer.length', buffer.length);
  console.info('contentType', contentType);
 
  // get base64 from raw image info
  const base64 = SaImageUtils.rawImageToBase64(rawImageInfo);
  console.info('base64.length', base64.length);
});