A lightweight JSON library for Lua
- Implemented in pure Lua: works with 5.1, 5.2, 5.3 and JIT
- Fast: generally outperforms other pure Lua JSON implementations (benchmark scripts)
- Tiny: around 280sloc, 9kb
- Proper error messages, eg:
expected '}' or ',' at line 203 col 30
The json.lua file should be dropped into an existing project and required by it:
json = require "json"The library provides the following functions:
Returns a string representing value encoded in JSON.
json.encode({ 1, 2, 3, { x = 10 } }) -- Returns '[1,2,3,{"x":10}]'Returns a value representing the decoded JSON string.
json.decode('[1,2,3,{"x":10}]') -- Returns { 1, 2, 3, { x = 10 } }- Trying to encode values which are unrepresentable in JSON will never result in type conversion or other magic: sparse arrays, tables with mixed key types or invalid numbers (NaN, -inf, inf) will raise an error
nullvalues contained within an array or object are converted toniland are therefore lost upon decoding- Pretty encoding is not supported,
json.encode()only encodes to a compact format
This library is free software; you can redistribute it and/or modify it under the terms of the MIT license. See LICENSE for details.