https://github.com/rene78/address-balance-change-notifier

Azure Function in node.js which monitors the balance of a Bitcoin address and triggers an email notification if the balance has changed within the last 2 days.
https://github.com/rene78/address-balance-change-notifier

address azure-timer-functions bitcoin bitcoin-address-balances blockcypher-api email-notifier monitoring-tool nodejs nodemailer

Last synced: 5 days ago
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Azure Function in node.js which monitors the balance of a Bitcoin address and triggers an email notification if the balance has changed within the last 2 days.

• Host: GitHub
• URL: https://github.com/rene78/address-balance-change-notifier
• Owner: rene78
• License: unlicense
• Created: 2024-01-15T21:35:29.000Z (10 months ago)
• Default Branch: main
• Last Pushed: 2024-01-23T09:32:37.000Z (10 months ago)
• Last Synced: 2024-10-10T18:56:26.774Z (26 days ago)
• Topics: address, azure-timer-functions, bitcoin, bitcoin-address-balances, blockcypher-api, email-notifier, monitoring-tool, nodejs, nodemailer
• Language: JavaScript
• Homepage:
• Size: 38.1 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Address Balance Change Notifier

This script monitors the balance of a Bitcoin address every 24 hours and triggers an email notification if the balance has changed in the last 2 days. This Node.js script has been written to work on Microsofts Functions-as-a-Service (FaaS) offering, specifically [Azure Functions Timer Trigger](https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-timer). Rewriting it for a vanilla Node.js backend shouldn't require much effort though. Just implement a ```setIntervall()``` method to call the function at specific time intervalls.

![Intro Pic][screenshot-email]

# Configuration Variables

To customize the functionality, you may adjust the following private variables in a ```local.settings.json``` file:

- **"BTCAddressToMonitor":** Bitcoin address to monitor, e.g. `bc1q3vdf3np392k28hze3zjffk4mk2ka8z9r593jxn`

- **"eMailHost":** Your email host, e.g. `smtp.office365.com`

- **"eMailUserName":** Your email address, e.g. `[email protected]`

- **"eMailPassword":** Email password, e.g. `password123`

- **"eMailFrom":** Text that appears in the from field of the email, e.g. `'John Doe' `

- **"eMailTo":** The email address to which the notification mail is sent, e.g. `[email protected]`

Here is an example of such a ```local.settings.json``` file

```

{

  "IsEncrypted": false,

  "Values": {

    "BTCAddressToMonitor": "bc1q3vdf3np392k28hze3zjffk4mk2ka8z9r593jxn",

    "eMailHost": "smtp.office365.com",

    "eMailUserName": "[email protected]",

    "eMailPassword": "password123",

    "eMailFrom": "'John Doe' ",

    "eMailTo": "[email protected]"

  }

}

```

[screenshot-email]: screenshot.png "Screenshot of email"