Serde

Built-in library for:

• serialization & deserialization
• encoding & decoding
• compression

Example usage

local fs = require("@lune/fs")
local serde = require("@lune/serde")

-- Parse different file formats into lua tables
local someJson = serde.decode("json", fs.readFile("myFile.json"))
local someToml = serde.decode("toml", fs.readFile("myFile.toml"))
local someYaml = serde.decode("yaml", fs.readFile("myFile.yaml"))

-- Write lua tables to files in different formats
fs.writeFile("myFile.json", serde.encode("json", someJson))
fs.writeFile("myFile.toml", serde.encode("toml", someToml))
fs.writeFile("myFile.yaml", serde.encode("yaml", someYaml))

Functions

encode

Encodes the given value using the given format.

See [EncodeDecodeFormat] for a list of supported formats.

Parameters

• format The format to use

• value The value to encode

• pretty If the encoded string should be human-readable, including things such as newlines and spaces. Only supported for json and toml formats, and defaults to false

Returns

• The encoded string

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decode

Decodes the given string using the given format into a lua value.

See [EncodeDecodeFormat] for a list of supported formats.

Parameters

• format The format to use

• encoded The string to decode

Returns

• The decoded lua value

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compress

Compresses the given string using the given format.

See [CompressDecompressFormat] for a list of supported formats.

Parameters

• format The format to use

• s The string to compress

• level The compression level to use, clamped to the format’s limits. The best compression level is used by default

Returns

• The compressed string

---

decompress

Decompresses the given string using the given format.

See [CompressDecompressFormat] for a list of supported formats.

Parameters

• format The format to use

• s The string to decompress

Returns

• The decompressed string

---

hash

Hashes the given message using the given algorithm and returns the hash as a hex string.

See [HashAlgorithm] for a list of supported algorithms.

Parameters

• algorithm The algorithm to use

• message The message to hash

Returns

• The hash as a hex string

---

hmac

Hashes the given message using HMAC with the given secret and algorithm, returning the hash as a base64 string.

See [HashAlgorithm] for a list of supported algorithms.

Parameters

• algorithm The algorithm to use

• message The message to hash

• secret string | buffer

Returns

• The hash as a base64 string

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Types

EncodeDecodeFormat

A serialization/deserialization format supported by the Serde library.

Currently supported formats:

Name	Learn More
json	https://www.json.org
yaml	https://yaml.org
toml	https://toml.io

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CompressDecompressFormat

A compression/decompression format supported by the Serde library.

Currently supported formats:

Name	Learn More
brotli	https://github.com/google/brotli
gzip	https://www.gnu.org/software/gzip
lz4	https://github.com/lz4/lz4
zlib	https://www.zlib.net

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HashAlgorithm

A hash algorithm supported by the Serde library.

Currently supported algorithms:

Name	Learn More
md5	https://en.wikipedia.org/wiki/MD5
sha1	https://en.wikipedia.org/wiki/SHA-1
sha224	https://en.wikipedia.org/wiki/SHA-2
sha256	https://en.wikipedia.org/wiki/SHA-2
sha384	https://en.wikipedia.org/wiki/SHA-2
sha512	https://en.wikipedia.org/wiki/SHA-2
sha3-224	https://en.wikipedia.org/wiki/SHA-3
sha3-256	https://en.wikipedia.org/wiki/SHA-3
sha3-384	https://en.wikipedia.org/wiki/SHA-3
sha3-512	https://en.wikipedia.org/wiki/SHA-3
blake3	https://en.wikipedia.org/wiki/BLAKE3

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