Degiro ETF autobuy script

This script will read your desired portfolio from a config file, and work up to those ratio's automatically.

Possible usecases:

• You can set it to run daily and as soon as your account reaches a set amount of cash money
• You can set it to run monthly

When ran, the script will place orders to get as closed to your desired portfolio as possible.

This script uses nodejs and can be run as a Google Cloud Function. For our limited usage it will be free. I schedule it to run every day at 14:00 but you can choose something that works for you.

Configuration

Configuration parameters

General

Parameter	Value	Description
minCashInvest	Number	Minimum total order amount for a single script execution
maxCashInvest	Number	Maximum total order amount for a single script execution
cashCurrency	String	Currency of cash in your DeGiro account
allowOpenOrders	Boolean	If set to true, script will not place any orders if there are open orders in your account
useMargin	Boolean	If set to true, the script will place orders even if cash in account is less than minCashInvest. Your DeGiro account must have margin trading enabled for this to correctly work
divideEqually	Boolean	If set to true, the script will divide the total order amount evenly between multiple free ETF's. If set to false, the script will use the ratio's to divide the total order amount smartly
desiredPortfolio	Array	Your desired portfolio
demo	Boolean	If set to true, the script will not actually place orders. Set to true if you want to test out the script or your settings first

Desired portfolio element

Parameter	Value	Description
symbol	String	Ticker symbol for ETF
isin	String	ISIN for ETF
ratio	Nuber	Ratio of amount of this ETF you want in your portfolio. NOT A PERCENTAGE! This number is relative to ratio's of your other elements in your desired portfolio
exchangeId	Number	ID of the exchange you want to buy this ETF from EAM Euronext Amsterdam: 200 NSY New York Stock Exchange: 676
degiroCore	Boolean	If set to true, orders for this ETF will only be placed if there are no transaction fees (see DeGiro Core Selection)

Example

{
  "cashCurrency": "EUR",      // Cash currency is EUR
  "minCashInvest": 500,       // Script will place orders with a total of at least 500 EUR
  "maxCashInvest": 600,       // Script will place orders with a total of maximum 600 EUR
  "allowOpenOrders": true,    // Script will place orders even if account has open orders
  "useMargin": true,          // Script will place orders even if cash in account is less than 500 EUR (minCashInvest)
  "divideEqually" : false,    // Script will divide order amounts itself by using ratio's
  "desiredPortfolio": [
    {
      "symbol": "IWDA",       // Symbol of ETF
      "isin": "IE00B4L5Y983", // ISIN of ETF
      "ratio": 88,            // Ratio of this ETF to keep in portfolio
      "exchangeId": 200,      // ID of exchange to buy ETF on, 200 = Euronext Amsterdam
      "degiroCore": true      // Will only place order for this ETF if there are no transaction fees
    },
    {
      "symbol": "IEMA",
      "isin": "IE00B4L5YC18",
      "ratio": 12,
      "exchangeId": 200,
      "degiroCore": true
    },
    {
      "symbol": "INRG",
      "isin": "IE00B1XNHC34",
      "ratio": 43,
      "exchangeId": 608,
      "degiroCore": false
    }
  ],
  "demo": false               // Actually place orders to DeGiro
}

How to install

• Head over to Google Cloud Console
• In the top bar, click Select a project and t hen ch oose New project. Choose a name of your liking.
• If the project did not get selected (see top bar), select it.
• In the side hamburger menu choose Cloud-functions, under the Compute category
• You will need to have an account with billing enabled, so a creditcard will be required. However our use will be so little that it doesn't cost money. Just follow the instructions on the page to do this. You can start with a 90 day trial and 300 dollars in credit, but switching to a full account will be free too for our usecase.
• Go back to the Cloud-functions page and press Create function
• Give the function a name and choose a region. I just chose a region close to where I live.
• For trigger type select Cloud Pub/Sub
• Click the subject field and create a new subject. Remember the name you choose. Leave the encryption to what it is.
• When done press the Save button
• Click `VARIABLES, NETWORKING AND ADVANCED SETTINGS
• In the advanced tab set maximum amount of function instances to 1.
• In the environment variables tab, add 2 variables:
  • DEGIRO_USER: Value for this should be your DeGiro username
  • DEGIRO_PWD: Value for this should be your DeGiro password
  • DEGIRO_OTP_SECRET: Value for this should be your Degiro TOTP secret
• Press Next
• Select Node.js 12 for runtime,
• Input runScript in the Entrypoint field
• If there is a message Cloud Build API is required to use the runtime selected., press Enable API, and press Enable in the tab that opened. Close this tab now and go back to the previous tab.
• Make sure the source code field is set to Inline Editor.
• Mirror the file setup in this repository: create the files index.js, script.js, package.json, package-lock.json, config.json and copy their contents using the inline editor. You can configure the config.json file to your liking.
• Click Implement.
• Back in the list view, click your created function. If it is done building, go to the test tab and press Test this function
• Wait until the logs show up, if everything is correcct you will see logs like this:

  Started degiro-autobuy script
  Desired portfolio: IWDA (63.77%), VUSA (6.52%), EQQQ (6.52%), EMIM (8.70%), INRG (14.49%)
  Cash in account (-22.21) is less than minimum cash funds (500).
  

  This will ofcourse vary for your situation
• Now we need to make this script execute every day
• Open the side menu and select Cloud scheduler under TOOLS
• Click Create task
• Select a region you like and click next, again I chose a region close to me
• Give your scheduler a name, for example daily-degiro-autobuy
• For frequency you can use a cron expression: 0 14 * * * means that it will run every day at 14:00.
• Select your timezone
• For purpose, select Pub/Sub
• In subject field, select the name for the subject you chose before when creating our function
• For payload just put something random, it doesn't matter and click finish
• To test if this scheduler works, press the Run now button
• In the side bar again select Cloud-functions and in the 3 dots for your function, click View logs
• Check if the logs show that your script ran after running the schedule.
• Done