> ## Documentation Index
> Fetch the complete documentation index at: https://docs.projectreal.gg/llms.txt
> Use this file to discover all available pages before exploring further.

# lz4decompress

> Giai nen raw LZ4 block bytes bang LZ4 block decompression va tra ve raw decompressed bytes duoi dang chuoi Lua.

<div className="real-function-page">
  ```lua theme={null}
  lz4decompress(data: string, originalSize?: number): string
  ```

  ## Alias

  * `crypt.lz4decompress`
  * `crypt.lz4.decompress`
  * `lz4.decompress`

  ## Đối số

  <ParamField path={"data"} type={"string"} required>
    Raw compressed bytes duoc truyen vao LZ4 block decompression.
  </ParamField>

  <ParamField path={"originalSize"} type={"number"}>
    Output buffer size duoc truyen lam dstCapacity. Voi output cua lz4compress, hay truyen do dai byte goc chua nen; neu bo qua, do dai input da nen se duoc dung.
  </ParamField>

  ## Giá trị trả về

  <ResponseField name={"decompressed"} type={"string"}>
    Raw decompressed bytes duoc tra ve duoi dang chuoi Lua. Output co the ngan hon originalSize.
  </ResponseField>

  ## Ví dụ

  Giai nen LZ4 bytes bang cach truyen kich thuoc goc chua nen.

  ```lua theme={null}
  local source = "Real Docs"
  local compressed = lz4compress(source)
  local decompressed = lz4decompress(compressed, #source)

  print(decompressed)
  print(decompressed == source)
  ```
</div>