ShellPromise.blob method | Bun module | Bun

Read from stdout as a Blob

Automatically calls quiet

A promise that resolves with stdout as a Blob

const output = await $`echo hello`.blob();
console.log(output); // Blob { size: 6, type: "" }

A file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.

MDN Reference

MDN Reference

MDN Reference

Returns a promise that resolves to the contents of the blob as an ArrayBuffer

MDN Reference

Returns a promise that resolves to the contents of the blob as a Uint8Array (array of bytes) its the same as new Uint8Array(await blob.arrayBuffer())

Read the data from the blob as a FormData object.

This first decodes the data from UTF-8, then parses it as a multipart/form-data body or a application/x-www-form-urlencoded body.

The type property of the blob is used to determine the format of the body.

This is a non-standard addition to the Blob API, to make it conform more closely to the BodyMixin API.

Wrap this blob in a Bun.Image pipeline. Equivalent to new Bun.Image(this, options) — the constructor is synchronous (the underlying read happens lazily when an Image terminal is awaited), so this works on Bun.file(), Bun.s3(), fd-backed and in-memory blobs alike:

await Bun.file("photo.jpg").image().resize(400).webp().write("thumb.webp");

Read the data from the blob as a JSON object.

This first decodes the data from UTF-8, then parses it as JSON.

MDN Reference

MDN Reference

Returns a readable stream of the blob's contents

Returns a promise that resolves to the contents of the blob as a string