Build a index fund with Cira

basics

The fund will be buying and selling at random stocks from nasdaq giving a portfolio that follows the market.

Installation

You can install by pip

pip install cira

Becose the alpca trade API need a key.
You need to keep your api key in a json file. Cira needs the path to the file.

key.json

{
  "APCA-API-KEY-ID":"your_pub_key",
  "APCA-API-SECRET-KEY":"your_private_key"
}

Then you can start using the lib.

import cira
cira.KEY_FILE = "../mypath/key.json"

Getting started

First you will need to a main loop. This will call a function caled instance()

import cira
import time 

cira.KEY_FILE = "../mypath/key.json"

while True: 
  if cira.exchange_open():
  instance()
  time.sleep(60*30) # 30 min timer 

The instance

the function instance is not a must but is a way to keep track of the behavior of the bot. So let’s keep it simpel.

def instance():
  """ This func is the main behavior """
  random_buy()
  random_sell()

helper functions

These are the functions that help the instance to preform the actions. A way of thinking of a function is that it shuld do one thing.

import cira
import time
import random

cira.KEY_FILE = "../mypath/key.json"

def random_stock():
  """ returns a random stock from NASDAQ  """
  market_assets = cira.nasdaq_assets()
  return market_assets[random.randint(0, len(market_assets))].symbol


def random_buy():
  """ buy a random stock """
  qty = random.randint(1, 100)
  sym = random_stock()
  return cira.buy(qty, sym)


def random_sell():
    """ sells random stock """
    qty = random.randint(1, 100)
    ownd_stocks = cira.owned_stocks()
    sym = ownd_stocks[random.randint(0, len(ownd_stocks)-1)]
    return cira.sell(qty, sym)


def instance():
  """ This func is the main behavior """
  random_buy()
  random_sell()


while True: 
  if cira.exchange_open():
    instance()
    time.sleep(60*30) # 30 min timer

We are now done! konw you can runit and test it

python3 myfund.py