mozharov

lightning

Generate LN invoices on static sites without revealing your NWC secret

If I understand correctly, these static payment codes requires specific configuration of Lightning Node and requires the user to have a specific wallet to support payments via this protocol. It seems to be quite experimental at the moment.

> Woah! This seems pretty handy! Bookmarking this to play around with later.

Thanks! If you have anything to say, please give me feedback. 

I think there's potential to build this out into something more powerful. Maybe something like a service for collecting donations or something along those lines.

**Problem**
There are excellent JS libraries for working with NWC, like the [getAlby/js-sdk](https://github.com/getAlby/js-sdk). The problem is that they're only suitable for working with the site user's wallet. But what if I want to generate Lightning invoices on my site, for example, to collect donations? This requires a service layer on the backend, because if you simply generate invoices via NWC on the frontend, you'd have to expose your NWC secret.

**Solution**
Therefore, I created a simple microservice where you can insert your NWC secret and get a unique endpoint for generating invoices on demand! To generate invoices, you just need to add a simple JS script to your static site that will call the received API method.

**Instructions**
1. Visit [the website](https://ln-invoice-generator.mozharov.me/)
2. Insert your NWC secret (you can limit NWC to only invoice creation rights or set a minimum budget for security)
3. Get example code and a URL that when called generates a Lightning invoice for the specified amount
4. Insert the script into your site
5. Enjoy

![LN invoice generator](https://m.stacker.news/105988)
![LN invoice generator](https://m.stacker.news/105989)

The integration example provided is very simple, so you may need to enhance it slightly to achieve the necessary functionality. Any AI can easily handle this, but feel free to contact me if you need help with installation!

The service doesn't charge any fees — all invoices are generated directly by your Lightning wallet.

By the way, you can even deploy this service on your own server — it only requires Node.js.
Here's [the GitHub repo](https://github.com/mozharov/ln-invoice-generator).

You can see an example of the script working on @bitcal's [website](https://bitcoin-calendar.org/). Just click on the “zap” button.

My projects:
[ZapGram](https://t.me/zap_gram_bot) — Lightning Wallet on Telegram.
[Lightning invoice generator](https://stacker.news/items/1197126/r/mozharov) for static sites.

@mozharov's bio

LNTXBOT alternatives

ec7092039a

You should try [ZapGram](https://t.me/zap_gram_bot)!

You can set up paid chats with a one-time or monthly subscription with LN payments. As a bonus, you can connect your NWC wallet to send sats directly from it through the bot.

By the way, I'm the author of this bot, so you can write to me with feature requests.
