web3-provider-engine/dist/es5/util/create-payload.js

A JavaScript library for composing Ethereum provider objects using middleware modules

"use strict";

var getRandomId = require('./random-id.js');
var extend = require('xtend');
module.exports = createPayload;
function createPayload(data) {
  return extend({
    // defaults
    id: getRandomId(),
    jsonrpc: '2.0',
    params: []
    // user-specified
  }, data);
}