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dimitrovs/convert-blob.js

Created December 27, 2020 03:14
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Blob<>JSON
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convert-blob.js
// credits: https://stackoverflow.com/questions/27232604/json-stringify-or-how-to-serialize-binary-data-as-base64-encoded-json
// Blob to JSON
const blobToBase64 = (blob) => {
return new Promise((resolve) => {
const reader = new FileReader();
reader.readAsDataURL(blob);
reader.onloadend = function () {
resolve(reader.result);
};
});
};
(async () => {
const b64 = await blobToBase64(blob);
const jsonString = JSON.stringify({blob: b64});
console.log(jsonString);
})();
// JSON to Blob
const parsed = JSON.parse(jsonString);
const blob = await fetch(parsed.blob).then(res => res.blob());
console.log(blob);
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