TDBot

This is a terraform module that will create a bot in aws that will purchase defined securities based on weights provided to the module automatically.

Use this bot at your own risk, I do not assume any financial responsibility for your use of this bot.
The bot is for educational purposes only
BE SURE YOU READ OVER THE CODE AND UNDERSTAND COMPLETELY HOW THIS BOT WORKS BEFORE USE

Note: The bot ONLY creates orders, it will not rebalance or sell.

Why

I created this bot because I know what securities I want to purchase and I do so everytime I get paid.
I dont have the funds to use some auto investing features TD offers, so I use this to auto buy securities Im interested in.

How it works

Every night at mightnight EST the bot will:

1. login to your TD Ameritrade account
2. check how much money you have available for trading
3. create DAY orders for the next trading windows
   • purchases as many securities that it can with your available funds
   • purchases securities from heightes weights to lowest weights
   • buys with a LIMIT of either the ask price or the low price (whichever is cheaper)

How to install

1. Create the required infrastructure

module "my_td_bot" {
  source = "github.com/apollorion/tdbot"
  
  weights = {
    "XLK" : 30,
    "SPHD" : 30,
    "AMD" : 30,
    "VTI" : 20,
    "NVDA" : 20,
    "AAL" : 10,
    "AAPL" : 10,
    "O" : 10,
  }

  account_id      = "444444444" # TD ameritrade account id
  fargate_arn     = "arn:aws:ecs:us-east-1:44444444:cluster/FARGATE" # Fargate cluster to run the task in
  subnets         = ["subnet-4444444"] # Subnets for the task
  security_groups = ["sg-4444444444"] # SG for the task
}

2. Terraform will output a secret arn, export it as an environment variable locally
   • export SECRET_ARN="{secret_arn}"
3. Export aws keys locally
   • export AWS_DEFAULT_REGION="{region}" as the region the previous steps secret is in
   • export AWS_SECRET_ACCESS_KEY="{secret_access_key}" as the secret access key with access to the previous steps secret
   • export AWS_ACCESS_KEY_ID="{access_key}" as the access key with access to the previous steps secret
4. Export your TD Ameritrade account id
   • export ACCOUNT_ID="{your_td_account_id}"
5. Run the set_token.sh script and follow the onscreen prompts
   • This will configure the secret the task will need to authenticate to td ameritrade
   • ./scripts/set_token.sh run from the root of the project.

Once the above 5 steps are complete, you will be good to go. You can change weights at any time and the bot will auto purchase the securities when you have funds.

Requirements

Name	Version
aws	>= 4
local	2.1.0

Providers

Name	Version
aws	4.3.0

Resources

Name	Type
aws_cloudwatch_event_rule.event_rule	resource
aws_cloudwatch_event_target.ecs_scheduled_task	resource
aws_cloudwatch_log_group.tdbot	resource
aws_ecs_task_definition.main	resource
aws_iam_role.tdbot	resource
aws_iam_role_policy.tdbot	resource
aws_secretsmanager_secret.tdbot	resource
aws_iam_policy_document.tdbot	data source
aws_iam_policy_document.tdbot_assume_role	data source

Inputs

Name	Description	Type	Default	Required
account_id	TD Ameritrade account ID	string	n/a	yes
fargate_arn	Fargate cluster ARN	string	n/a	yes
security_groups	security groups to assign to task	list(string)	n/a	yes
subnets	subnets to launch the task into	list(string)	n/a	yes
weights	securities weights, key = security name, value = weight	map(number)	{}	no
secret_arn	secrets manager arn to use instead of creating a new one (if used, set var.create_secret to false)	string	""	no
create_secret	create the secret (should be false if you provide a secret_arn)	bool	true	no
name_prefix	name prefix for resources	string	""	no

Outputs

Name	Description
secret_arn	secret_arn for generating token