eos-account-sample.js

// yarn add eosjs or npm install eosjs
const { Api, JsonRpc, RpcError } = require('eosjs');
const { JsSignatureProvider } = require('eosjs/dist/eosjs-jssig');      // development only
const fetch = require('node-fetch');                                    // node only; not needed in browsers
const { TextEncoder, TextDecoder } = require('util');                   // node only; native TextEncoder/Decoder
const { TextEncoder, TextDecoder } = require('text-encoding');

const defaultPrivateKey = "<private_key_of_existing_eos_account_name>";
const signatureProvider = new JsSignatureProvider([defaultPrivateKey]);

const rpc = new JsonRpc('<eos_rpc_endpoint>', { fetch }); // http://localhost:8080

const api = new Api({ rpc, signatureProvider, textDecoder: new TextDecoder(), textEncoder: new TextEncoder() });

const action = {
  "code" : "eosio",
  "action" : "newaccount",
  "args" : {
    "creator" : "<existing_eos_account_name>",
    "name" : "<new_account_name>",
    "owner" : {
      "accounts" : [ ],
      "keys" : [ {
        "key" : "<public_key_for_owner_permission>",
        "weight" : 1
      } ],
      "threshold" : 1,
      "waits" : [ ]
    },
    "active" : {
      "accounts" : [ ],
      "keys" : [ {
        "key" : "<public_key_for_active_permission>",
        "weight" : 1
      } ],
      "threshold" : 1,
      "waits" : [ ]
    }
  }
}

(async () => {
  const result = await api.transact({
    actions: [action]
  }, {
    blocksBehind: 3,
    expireSeconds: 30,
  });
  console.dir(result);
})();