get-stdin

const getStdin: {
    (options?: Options): Promise<string>;
    buffer(options?: Options): Promise<Uint8Array>;
};

type Options = {
    /**
	Allow reading from a TTY.

	Use this when you want interactive behavior like `cat` or other Unix filters that wait for EOF even without piped input. The default resolves immediately in a TTY to avoid hanging CLIs that only want piped input and lets them fall back to other input methods.

	@default false
	*/
    readonly allowTTY?: boolean;

    /**
	Stream to read from.

	Useful for tests or to read from a custom stream. Defaults to `process.stdin`.
	*/
    readonly stdin?: NodeJS.ReadableStream;
};