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22 lines
783 B
Plaintext
22 lines
783 B
Plaintext
---
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title: Read a file to a Buffer
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sidebarTitle: Read to Buffer
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mode: center
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---
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The `Bun.file()` function accepts a path and returns a `BunFile` instance. The `BunFile` class extends `Blob` and allows you to lazily read the file in a variety of formats.
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To read the file into a `Buffer` instance, first use `.arrayBuffer()` to consume the file as an `ArrayBuffer`, then use `Buffer.from()` to create a `Buffer` from the `ArrayBuffer`.
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```ts index.ts icon="/icons/typescript.svg"
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const path = "/path/to/package.json";
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const file = Bun.file(path);
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const arrbuf = await file.arrayBuffer();
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const buffer = Buffer.from(arrbuf);
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```
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---
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Refer to [Binary data > Buffer](/runtime/binary-data#buffer) for more information on working with `Buffer` and other binary data formats in Bun.
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