CODE EXAMPLE FOR TYPESCRIPT

react native mime type converter

import RNHeicConverter from 'react-native-heic-converter';

import * as mime from 'react-native-mime-types';
export const convertToJpg = async (img: any) => {
  const contentType = mime.lookup(img.sourceURL);
  if (contentType == 'image/heic') {
    return await RNHeicConverter
      .convert({
        path: img.sourceURL,
      })
  }
  return img;

};