Schemepack

JSON is very verbose object serializer. To reduce network bandwidth one can split JSON into schema and values.

Subsequently the server needs to send the schema only once to the client. Each time new values are sent, the client can combine the schema and values into the original JSON.

Installation:

npm install schemepack

Usage:

var schemer = require("schemepack");

Original JSON object:

var json = {
    key: "value",
    arr: [1, 2, 3]
};

Extract JSON schema:

var schema = schemepack.schema(json);
console.log(schema);
// ["key", "arr"]

Extract JSON values:

var values = schemepack.values(json);
console.log(values);
// ["value", [1, 2, 3]]

Combine schema and values into the original object:

json = schemepack.combine(schema, values);
console.log(json);
// {key:"value", arr:[1, 2, 3]}

Bandwidth reduction depends on your original object form. For us, we see about 2x traffic reduction.