JSON canonicalize function. Creates crypto safe predictable canocalization of JSON as defined by RFC8785
const canonicalize = require('canonicalize'); const json = { "from_account": "543 232 625-3", "to_account": "321 567 636-4", "amount": 500, "currency": "USD" } console.log(canonicalize(json)); // output: {"amount":500,"currency":"USD","from_account":"543 232 625-3","to_account":"321 567 636-4"}
const canonicalize = require('canonicalize'); const json = { "1": {"f": {"f": "hi","F": 5} ,"\n": 56.0}, "10": { }, "": "empty", "a": { }, "111": [ {"e": "yes","E": "no" } ], "A": { } } console.log(canonicalize(json)); // output: {"":"empty","1":{"\n":56,"f":{"F":5,"f":"hi"}},"10":{},"111":[{"E":"no","e":"yes"}],"A":{},"a":{}}
The function can be executed directly using npx without explicit installation. This allows JSON files and arbitrary input to be canonicalized with standard input/output:
# Input from file npx canonicalize < input.json > output.json # Input from string echo '{ "from_account": "543 232 625-3", "to_account": "321 567 636-4", "amount": 500, "currency": "USD" }' | npx canonicalize > simple-data.json # Input from web API curl --silent https://pokeapi.co/api/v2/pokemon/pikachu | npx canonicalize > pikachu.json
npm install canonicalize --save
npm test