# Nostr Market ([NIP-15](https://github.com/nostr-protocol/nips/blob/master/15.md)) - <small>[LNbits](https://github.com/lnbits/lnbits) extension</small>
<small>For more about LNBits extension check [this tutorial](https://github.com/lnbits/lnbits/wiki/LNbits-Extensions).</small>


**Demo at Nostrica <a href="https://www.youtube.com/live/2NueacYJovA?feature=share&t=6846">here</a>**.

**Original protocol for [Diagon Alley](https://github.com/lnbits/Diagon-Alley) (resilient marketplaces)**

> The concepts around resilience in Diagon Alley helped influence the creation of the NOSTR protocol, now we get to build Diagon Alley on NOSTR!


## Prerequisites
This extension uses the LNbits [nostrclient](https://github.com/lnbits/nostrclient) extension, an extension that makes _nostrfying_ other extensions easy.
![image](https://user-images.githubusercontent.com/2951406/236773044-81d3f30b-1ce7-4c5d-bdaf-b4a80ddddc58.png)
- before you continue, please make sure that [nostrclient](https://github.com/lnbits/nostrclient) extension is installed, activated and correctly configured.
- [nostrclient](https://github.com/lnbits/nostrclient) is usually installed as admin-only extension, so if you do not have admin access please ask an admin to confirm that [nostrclient](https://github.com/lnbits/nostrclient) is OK.
- see the [Troubleshoot](https://github.com/lnbits/nostrclient#troubleshoot) section for more details on how to check the health of `nostrclient` extension


## Create, or import, a merchant account

As a merchant you need to provide a Nostr key pair, or the extension can generate one for you.
![create keys](https://i.imgur.com/KhQYKOe.png)

Once you have a merchant "account", you can view the details on the merchant dropdown
![merchant dropdown](https://i.imgur.com/M5abrK9.png)

## Create a Stall, or shop

To create a stall, you first need to set a _Shipping zone_. Click on the _Zones_ button and fill in the fields:
![zone dialog](https://i.imgur.com/SMAviHm.png)

- Give your shipping zone a name
- Select to which countries does this _Shipping zone_ applies to (you can set a "Free" zone for digital goods)
- Select the unit of account. If your will list products in EUR, the shipping zone must be in the same currency
- Select the cost to ship

**Let's create the stall**
Click on _New Stall_ button and fill the necessary fields
![Create stall](https://i.imgur.com/gb9b4We.png)
![Stall dialog](https://i.imgur.com/lX3Cd9K.png)

- Give your stall/shop a name
- An optional description (this can be used by client to search shops)
- Select which wallet to use for this shop
- Select the unit
- select a Shipping Zone (multiple zones can be selected)

Click on the "Plus" button to open the stall details and click "New Product" to create a product
![create product](https://i.imgur.com/zNG8wZx.png)

Fill the necessary fields on the dialog

![product dialog](https://i.imgur.com/lAmkuvy.png)

- The product name
- Give it a description
- Add some categories (this can be used by clients to search for products)
- Supply an URL for your product image (you can upload an image but it's recommended that the images are hosted outside of LNbits)
- A price for the product, in the currency selected for the shop (this will be converted to sats when a customer buys)
- The quantity you have in stock, for the product. This will update when orders are made/paid

On the _Stall_ section you can also see (update or delete) the stall details in _Stall Info_ tab
![stall details](https://i.imgur.com/97eJ7R0.png)

Create, update or delete products in _Products_ tab
![products tab](https://i.imgur.com/ilbxeOG.png)

And check your orders on the _Orders_ tab

![orders tab](https://i.imgur.com/RiqMKUM.png)

When you get an order, you can see the details by clicking on the "Plus" sign for the order

![order details](https://i.imgur.com/PtYbaPm.png)

- Ordered products
- The order ID
- Customer's shipping address
- Customer's public key
- Invoice ID

If applicable, you can set as shipped when shipping is processed.

You also have a _Chat Box_ to chat with customer

![chat box](https://i.imgur.com/fhPP9IB.png)

## Diagon Alley Clients

LNbits also provides a Nostr Market client app. You can visit the client from the merchant dashboard by clicking on the "Market client" link
![market client link](https://i.imgur.com/3tsots2.png)

or by visiting `https://<LNbits instance URL>/nostrmarket/market`

Make sure to add your `merchant` public key to the list:
![image](https://user-images.githubusercontent.com/2951406/236787686-0e300c0a-eb5d-4490-aa70-568738ac78f4.png)

### Styling
In order to create a customized Marketplace, we use `naddr` as defined in [NIP-19](https://github.com/nostr-protocol/nips/blob/master/19.md#shareable-identifiers-with-extra-metadata). You must create an event (kind: `30019`) that has all the custom properties, including merchants and relays, of your marketplace. Start by going to the marketplace page:
![vanilla market](https://i.imgur.com/nCaMh1N.png)

You'll need to Login, and head over to *Marketplace Info*. Optionally import some merchants and relays, that will be included in the event. Click on *Edit* and fill out your marketplace custom info:
![edit](https://i.imgur.com/wEuHuN9.png)

Fill in the optional fields:
- Add a name to the Marketplace
- Add a small description
- Add a logo image URL
- Add a banner image URL (max height: 250px)
- Choose a theme 

By clicking *Publish*, a `kind: 30019` event will be sent to the defined relays containing all the information about your custom Marketplace. On the left drawer, a button with *Copy Naddr* will show up.
![copy naddr](https://i.imgur.com/VuNIMVf.png)

You can then share your Marketplace, with the merchants and relays, banner, and style by using that Nostr identifier. The URL for the marketplace will be for example: `https://legend.lnbits.com/nostrmarket/market?naddr=naddr1qqfy6ctjddjhgurvv93k....`, you need to include the URL parameter `naddr=<your naddr>`. When a user visits that URL, the client will get the `30019` event and configure the Marketplace to what you defined. In the example bellow, a couple of merchants, relays, `autumn` theme, name (*Veggies Market*) and a header banner:
![final](https://i.imgur.com/EYG7vYS.png)

The nostr event is a replaceable event, so you can change it to what you like and publish a new one to replace a previous one. For example adding a new merchant, or remove, change theme, add more relays,e tc...


## Troubleshoot
### Check communication with Nostr
In order to test that the integration with Nostr is working fine, one can add an `npub` to the chat box and check that DMs are working as expected:

https://user-images.githubusercontent.com/2951406/236777983-259f81d8-136f-48b3-bb73-80749819b5f9.mov

### Restart connection to Nostr
If the communication with Nostr is not working then an admin user can `Restart` the Nostr connection.

Merchants can afterwards re-publish their products.

https://user-images.githubusercontent.com/2951406/236778651-7ada9f6d-07a1-491c-ac9c-55530326c32a.mp4

### Check Nostrclient extension
- see the [Troubleshoot](https://github.com/lnbits/nostrclient#troubleshoot) section for more details on how to check the health of `nostrclient` extension


## Aditional info

Stall and product are _Parameterized Replaceable Events_ according to [NIP-33](https://github.com/nostr-protocol/nips/blob/master/33.md) and use kind `30017` and `30018` respectivelly. See [NIP-15](https://github.com/nostr-protocol/nips/blob/master/15.md) for more details.

Order placing, invoicing, payment details and order statuses are handled over Nostr using [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md).

Customer support is handled over whatever communication method was specified. If communicationg via nostr, [NIP-04](https://github.com/nostr-protocol/nips/blob/master/04.md) is used.
