# readAll

`import { readAll } from "destack:sync";`

Read until end of input.

```ds title="readAll"
export function readAll(reader: &'a exclusive Reader): Result<uint8[], IoError>
```

[language/library/src/sync/reader.ds:10:12](https://github.com/destack-sh/destack/blob/main/language/library/src/sync/reader.ds#L10-L12)