node-tda

Convenient library for TDA REST API.

Status

Contributing

Please review the contributing documentation.

Prerequisites

Follow these instructions to create a tda developer account and app. Set your app redirect uri to https://localhost:8443/.
Take note of the consumer key generated for your app.
Install openssl on your system if you want to use the CLI to aid in retrieving your tokens.

Install

npm install node-tda
npm install node-tda --no-optional if you don't need puppeteer for oauth authentication in a headless browser

Usage

CLI

For CLI usage, also install node-tda as a global package npm install -g node-tda

The cli uses an https server to retrieve access tokens from the tda oauth login. For convenience, self-signed certs are generated automatically upon install. If your system is missing openssl from its path, the certs will not be generated and the cli won't work.

For automated oauth login:

tda_authenticate --CONSUMER_KEY='<CONSUMER_KEY>' --UID='<userid>' --PW='<password>'

For manual oauth login:

tda_authenticate --CONSUMER_KEY='<CONSUMER_KEY>'

Lib

REST API

All functions names are a camelCase reflection their respective names found in the TDA API documentation. As of the writing of this document, all of the functions published in TDA's web api have been implemented.

Examples:

// Get Accounts
// https://developer.tdameritrade.com/account-access/apis/get/accounts-0
const { getAccounts } = require('node-tda');

// Place Order
// https://developer.tdameritrade.com/account-access/apis/post/accounts/%7BaccountId%7D/orders-0
const { placeOrder } = require('node-tda');

The REST API function signatures apiFunc(options, [callback]) include an optional callback, which when omitted, returns a promise.

Using Promises:

const { authenticate, generateTokens, refreshToken, getAccounts } = require('node-tda');

async function auth(consumerKey) {
  const grant = await authenticate({
    consumerKey
  });
  const token = await generateTokens({
    consumerKey,
    grant
  });
  return token['access_token'];
}

const consumerKey = "someKey";
auth(consumerKey)
  .then(async (token) => {
    const accounts = await getAccounts({ token });
    console.log(JSON.stringify(accounts));
    setInterval(async () => {
      // refresh token
      const newToken = refreshTokenToken({
        ...token,
        consumerKey
      });
      console.log(JSON.stringify(newToken));
    }, 1800000);
  })
  .catch((err) => {
    console.log(err);
  });

Using Callbacks:

const { authenticate, generateTokens, refreshToken, getAccounts } = require('node-tda');

function auth(consumerKey, callback) {
  authenticate({
    consumerKey
  }, (grant) => {
    generateTokens({
      consumerKey,
      grant
    }, (token) => {
      callback(null, token['access_token']);
    });
  });
}

const consumerKey = "someKey";
auth(consumerKey, (err, token) => {
  getAccounts({ token }, (accounts) => {
    console.log(JSON.stringify(accounts));
    setInterval(async () => {
      // refresh token
      const newToken = refreshTokenToken({
        ...token,
        consumerKey
      });
      console.log(JSON.stringify(newToken));
    }, 1800000);
  });
});

Streaming API

The Streamer Class extends EventEmitter and facilitates the use of the streaming API. See TDA's Streaming API documentation here.

Initialize Streaming Session:

const consumerKey = 'YourAppKey';
const refreshToken = 'YourRefreshToken';
async function streamingFun() {
  // refresh token:
  const { access_token } = await tda.refreshToken({
    consumerKey,
    refreshToken,
  });

  const userPrincipalsResponse = await tda.getUserPrincipals({
    token: access_token,
    fields: 'streamerSubscriptionKeys,streamerConnectionInfo',
  });

  const tdaStreamer = new tda.Streamer({
    userPrincipalsResponse,
  });

  tdaStreamer.on('connected', () => {
    tdaStreamer.request({
      requests: [
        {
          service: 'CHART_EQUITY',
          requestid: '2',
          command: 'SUBS',
          account: 'your_account',
          source: 'your_source_id',
          parameters: {
            keys: 'AAPL',
            fields: '0,1,2,3,4,5,6,7,8',
          },
        },
      ],
    });
  });

  tdaStreamer.on('message', (message) => {
    console.log(JSON.stringify(message));
  });
}

streamingFun();

Events:

event	emits
error	Error
message	message object
connected	n/a
disconnected	n/a

mafischer/node-tda