# EncodingService（ロブロックス クラス）

> Service providing common encoding, hashing, and compression methods.

- URL：https://roblox.minecraft-okinawa.com/reference/classes/EncodingService/
- 公式：https://create.roblox.com/docs/reference/engine/classes/EncodingService
- 受け継いでいるクラス：Instance

## メソッド

- `EncodingService:Base64Decode(input: buffer): buffer`：Decodes a Base64-encoded buffer into a new buffer containing the original binary data.
- `EncodingService:Base64Encode(input: buffer): buffer`：Encodes binary data from a buffer into Base64 format, returning the result as a new buffer.
- `EncodingService:CompressBuffer(input: buffer, algorithm: CompressionAlgorithm, compressionLevel: int): buffer`：Compresses binary buffer data using the specified algorithm and compression level.
- `EncodingService:ComputeBufferHash(input: buffer, algorithm: HashAlgorithm): buffer`：Computes a cryptographic hash of a buffer's binary data using the specified algorithm.
- `EncodingService:ComputeStringHash(input: string, algorithm: HashAlgorithm): string`：Computes a cryptographic hash of a string using the specified algorithm.
- `EncodingService:DecompressBuffer(input: buffer, algorithm: CompressionAlgorithm): buffer`：Decompresses binary buffer data that was compressed with the specified algorithm.
- `EncodingService:GetDecompressedBufferSize(input: buffer, algorithm: CompressionAlgorithm): int?`：Returns the expected decompressed size of a compressed buffer, or nil if the size is unknown or invalid.

英語の説明とメンバー一覧：Roblox Creator Documentation（CC BY 4.0）。日本語の解説はこのサイト独自のものです。

執筆：鈴木孝昌（現役プロジェクトマネージャー／プログラミング講師）／運営：沖縄マイクラ部 プログラミングスクール「クロスウェーブ」（https://minecraft-okinawa.com/）