basic offlineshop functionality.

lnbits/core/crud.py

@@ -131,14 +131,15 @@ async def get_wallet_for_key(key: str, key_type: str = "invoice") -> Optional[Wa
 # ---------------
 
 
-async def get_standalone_payment(checking_id: str) -> Optional[Payment]:
+async def get_standalone_payment(checking_id_or_hash: str) -> Optional[Payment]:
     row = await db.fetchone(
         """
         SELECT *
         FROM apipayments
-        WHERE checking_id = ?
+        WHERE checking_id = ? OR payment_hash = ?
+        LIMIT 1
         """,
-        (checking_id,),
+        (checking_id_or_hash, checking_id_or_hash),
     )
 
     return Payment.from_row(row) if row else None
@@ -285,11 +286,7 @@ async def create_payment(
 
 async def update_payment_status(checking_id: str, pending: bool) -> None:
     await db.execute(
-        "UPDATE apipayments SET pending = ? WHERE checking_id = ?",
-        (
-            int(pending),
-            checking_id,
-        ),
+        "UPDATE apipayments SET pending = ? WHERE checking_id = ?", (int(pending), checking_id,),
     )
 
 

lnbits/extensions/offlineshop/README.md

@@ -0,0 +1 @@
+# Offline Shop

lnbits/extensions/offlineshop/__init__.py

@@ -0,0 +1,12 @@
+from quart import Blueprint
+
+from lnbits.db import Database
+
+db = Database("ext_offlineshop")
+
+offlineshop_ext: Blueprint = Blueprint("offlineshop", __name__, static_folder="static", template_folder="templates")
+
+
+from .views_api import *  # noqa
+from .views import *  # noqa
+from .lnurl import *  # noqa

lnbits/extensions/offlineshop/config.json

@@ -0,0 +1,8 @@
+{
+  "name": "Offline Shop",
+  "short_description": "Sell stuff with Lightning and lnurlpay on a shop without internet or any electronic device.",
+  "icon": "nature_people",
+  "contributors": [
+    "fiatjaf"
+  ]
+}

lnbits/extensions/offlineshop/crud.py

@@ -0,0 +1,80 @@
+from typing import List, Optional
+
+from . import db
+from .wordlists import animals
+from .models import Shop, Item
+
+
+async def create_shop(*, wallet_id: str) -> int:
+    result = await db.execute(
+        """
+        INSERT INTO shops (wallet, wordlist)
+        VALUES (?, ?)
+        """,
+        (wallet_id, "\n".join(animals)),
+    )
+    return result._result_proxy.lastrowid
+
+
+async def get_shop(id: int) -> Optional[Shop]:
+    row = await db.fetchone("SELECT * FROM shops WHERE id = ?", (id,))
+    return Shop(**dict(row)) if row else None
+
+
+async def get_or_create_shop_by_wallet(wallet: str) -> Optional[Shop]:
+    row = await db.fetchone("SELECT * FROM shops WHERE wallet = ?", (wallet,))
+
+    if not row:
+        # create on the fly
+        ls_id = await create_shop(wallet_id=wallet)
+        return await get_shop(ls_id)
+
+    return Shop(**dict(row)) if row else None
+
+
+async def add_item(shop: int, name: str, description: str, image: Optional[str], price: int, unit: str,) -> int:
+    result = await db.execute(
+        """
+        INSERT INTO items (shop, name, description, image, price, unit)
+        VALUES (?, ?, ?, ?, ?, ?)
+        """,
+        (shop, name, description, image, price, unit),
+    )
+    return result._result_proxy.lastrowid
+
+
+async def update_item(
+    shop: int, item_id: int, name: str, description: str, image: Optional[str], price: int, unit: str,
+) -> int:
+    await db.execute(
+        """
+        UPDATE items SET
+          name = ?,
+          description = ?,
+          image = ?,
+          price = ?,
+          unit = ?
+        WHERE shop = ? AND id = ?
+        """,
+        (name, description, image, price, unit, shop, item_id),
+    )
+    return item_id
+
+
+async def get_item(id: int) -> Optional[Item]:
+    row = await db.fetchone("SELECT * FROM items WHERE id = ?  LIMIT 1", (id,))
+    return Item(**dict(row)) if row else None
+
+
+async def get_items(shop: int) -> List[Item]:
+    rows = await db.fetchall("SELECT * FROM items WHERE shop = ?", (shop,))
+    return [Item(**dict(row)) for row in rows]
+
+
+async def delete_item_from_shop(shop: int, item_id: int):
+    await db.execute(
+        """
+        DELETE FROM items WHERE shop = ? AND id = ?
+        """,
+        (shop, item_id),
+    )

lnbits/extensions/offlineshop/helpers.py

@@ -0,0 +1,48 @@
+import trio  # type: ignore
+import httpx
+
+
+async def get_fiat_rate(currency: str):
+    assert currency == "USD", "Only USD is supported as fiat currency."
+    return await get_usd_rate()
+
+
+async def get_usd_rate():
+    """
+    Returns an average satoshi price from multiple sources.
+    """
+
+    satoshi_prices = [None, None, None]
+
+    async def fetch_price(index, url, getter):
+        try:
+            async with httpx.AsyncClient() as client:
+                r = await client.get(url)
+                r.raise_for_status()
+                satoshi_price = int(100_000_000 / float(getter(r.json())))
+                satoshi_prices[index] = satoshi_price
+        except Exception:
+            pass
+
+    async with trio.open_nursery() as nursery:
+        nursery.start_soon(
+            fetch_price,
+            0,
+            "https://api.kraken.com/0/public/Ticker?pair=XXBTZUSD",
+            lambda d: d["result"]["XXBTCZUSD"]["c"][0],
+        )
+        nursery.start_soon(
+            fetch_price,
+            1,
+            "https://www.bitstamp.net/api/v2/ticker/btcusd",
+            lambda d: d["last"],
+        )
+        nursery.start_soon(
+            fetch_price,
+            2,
+            "https://api.coincap.io/v2/rates/bitcoin",
+            lambda d: d["data"]["rateUsd"],
+        )
+
+    satoshi_prices = [x for x in satoshi_prices if x]
+    return sum(satoshi_prices) / len(satoshi_prices)

lnbits/extensions/offlineshop/lnurl.py

@@ -0,0 +1,63 @@
+import hashlib
+from quart import jsonify, url_for, request
+from lnurl import LnurlPayResponse, LnurlPayActionResponse, LnurlErrorResponse  # type: ignore
+
+from lnbits.core.services import create_invoice
+
+from . import offlineshop_ext
+from .crud import get_shop, get_item
+from .helpers import get_fiat_rate
+
+
+@offlineshop_ext.route("/lnurl/<item_id>", methods=["GET"])
+async def lnurl_response(item_id):
+    item = await get_item(item_id)
+    if not item:
+        return jsonify({"status": "ERROR", "reason": "Item not found."})
+
+    rate = await get_fiat_rate(item.unit) if item.unit != "sat" else 1
+    price_msat = item.price * 1000 * rate
+
+    resp = LnurlPayResponse(
+        callback=url_for("shop.lnurl_callback", item_id=item.id, _external=True),
+        min_sendable=price_msat,
+        max_sendable=price_msat,
+        metadata=await item.lnurlpay_metadata(),
+    )
+
+    return jsonify(resp.dict())
+
+
+@offlineshop_ext.route("/lnurl/cb/<item_id>", methods=["GET"])
+async def lnurl_callback(item_id):
+    item = await get_item(item_id)
+    if not item:
+        return jsonify({"status": "ERROR", "reason": "Couldn't find item."})
+
+    if item.unit == "sat":
+        min = item.price * 1000
+        max = item.price * 1000
+    else:
+        rate = await get_fiat_rate(item.unit)
+        # allow some fluctuation (the fiat price may have changed between the calls)
+        min = rate * 995 * item.price
+        max = rate * 1010 * item.price
+
+    amount_received = int(request.args.get("amount"))
+    if amount_received < min:
+        return jsonify(LnurlErrorResponse(reason=f"Amount {amount_received} is smaller than minimum {min}.").dict())
+    elif amount_received > max:
+        return jsonify(LnurlErrorResponse(reason=f"Amount {amount_received} is greater than maximum {max}.").dict())
+
+    shop = await get_shop(item.shop)
+    payment_hash, payment_request = await create_invoice(
+        wallet_id=shop.wallet,
+        amount=int(amount_received / 1000),
+        memo=await item.name,
+        description_hash=hashlib.sha256((await item.lnurlpay_metadata()).encode("utf-8")).digest(),
+        extra={"tag": "offlineshop", "item": item.id},
+    )
+
+    resp = LnurlPayActionResponse(pr=payment_request, success_action=item.success_action(payment_hash, shop), routes=[])
+
+    return jsonify(resp.dict())

lnbits/extensions/offlineshop/migrations.py

@@ -0,0 +1,28 @@
+async def m001_initial(db):
+    """
+    Initial offlineshop tables.
+    """
+    await db.execute(
+        """
+        CREATE TABLE shops (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            wallet TEXT NOT NULL,
+            wordlist TEXT
+        );
+        """
+    )
+
+    await db.execute(
+        """
+        CREATE TABLE items (
+            shop INTEGER NOT NULL REFERENCES shop (id),
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT NOT NULL,
+            description TEXT NOT NULL,
+            image TEXT, -- image/png;base64,...
+            enabled BOOLEAN NOT NULL DEFAULT true,
+            price INTEGER NOT NULL,
+            unit TEXT NOT NULL DEFAULT 'sat'
+        );
+        """
+    )

lnbits/extensions/offlineshop/models.py

@@ -0,0 +1,65 @@
+import json
+from collections import OrderedDict
+from quart import url_for
+from typing import NamedTuple, Optional
+from lnurl import encode as lnurl_encode  # type: ignore
+from lnurl.types import LnurlPayMetadata  # type: ignore
+from lnurl.models import LnurlPaySuccessAction, UrlAction  # type: ignore
+
+
+class Shop(NamedTuple):
+    id: int
+    wallet: str
+    wordlist: str
+
+    def get_word(self, payment_hash):
+        # initialize confirmation words cache
+        self.fulfilled_payments = self.words or OrderedDict()
+
+        if payment_hash in self.fulfilled_payments:
+            return self.fulfilled_payments[payment_hash]
+
+        # get a new word
+        self.counter = (self.counter or -1) + 1
+        wordlist = self.wordlist.split("\n")
+        word = [self.counter % len(wordlist)]
+
+        # cleanup confirmation words cache
+        to_remove = self.fulfilled_payments - 23
+        if to_remove > 0:
+            for i in range(to_remove):
+                self.fulfilled_payments.popitem(False)
+
+        return word
+
+
+class Item(NamedTuple):
+    shop: int
+    id: int
+    name: str
+    description: str
+    image: str
+    enabled: bool
+    price: int
+    unit: str
+
+    @property
+    def lnurl(self) -> str:
+        return lnurl_encode(url_for("offlineshop.lnurl_response", item_id=self.id))
+
+    async def lnurlpay_metadata(self) -> LnurlPayMetadata:
+        metadata = [["text/plain", self.description]]
+
+        if self.image:
+            metadata.append(self.image.split(","))
+
+        return LnurlPayMetadata(json.dumps(metadata))
+
+    def success_action(self, shop: Shop, payment_hash: str) -> Optional[LnurlPaySuccessAction]:
+        if not self.wordlist:
+            return None
+
+        return UrlAction(
+            url=url_for("offlineshop.confirmation_code", p=payment_hash, _external=True),
+            description="Open to get the confirmation code for your purchase.",
+        )

lnbits/extensions/offlineshop/static/js/index.js

@@ -0,0 +1,157 @@
+/* globals Quasar, Vue, _, VueQrcode, windowMixin, LNbits, LOCALE */
+
+Vue.component(VueQrcode.name, VueQrcode)
+
+const pica = window.pica()
+
+const defaultItemData = {
+  unit: 'sat'
+}
+
+new Vue({
+  el: '#vue',
+  mixins: [windowMixin],
+  data() {
+    return {
+      selectedWallet: null,
+      offlineshop: {
+        wordlist: [],
+        items: []
+      },
+      itemDialog: {
+        show: false,
+        data: {...defaultItemData},
+        units: ['sat', 'USD']
+      }
+    }
+  },
+  methods: {
+    async imageAdded(file) {
+      let image = new Image()
+      image.src = URL.createObjectURL(file)
+      let canvas = document.getElementById('uploading-image')
+      image.onload = async () => {
+        canvas.setAttribute('width', 300)
+        canvas.setAttribute('height', 300)
+        await pica.resize(image, canvas)
+        this.itemDialog.data.image = canvas.toDataURL()
+      }
+    },
+    imageCleared() {
+      this.itemDialog.data.image = null
+      let canvas = document.getElementById('uploading-image')
+      canvas.setAttribute('height', 0)
+      canvas.setAttribute('width', 0)
+      let ctx = canvas.getContext('2d')
+      ctx.clearRect(0, 0, canvas.width, canvas.height)
+    },
+    disabledAddItemButton() {
+      return (
+        !this.itemDialog.data.name ||
+        this.itemDialog.data.name.length === 0 ||
+        !this.itemDialog.data.price ||
+        !this.itemDialog.data.description ||
+        !this.itemDialog.data.unit ||
+        this.itemDialog.data.unit.length === 0
+      )
+    },
+    changedWallet(wallet) {
+      this.selectedWallet = wallet
+      this.loadShop()
+    },
+    loadShop() {
+      LNbits.api
+        .request(
+          'GET',
+          '/offlineshop/api/v1/offlineshop',
+          this.selectedWallet.inkey
+        )
+        .then(response => {
+          this.offlineshop = response.data
+        })
+        .catch(err => {
+          LNbits.utils.notifyApiError(err)
+        })
+    },
+    addItem() {
+      let {name, image, description, price, unit} = this.itemDialog.data
+
+      LNbits.api
+        .request(
+          'POST',
+          '/offlineshop/api/v1/offlineshop/items',
+          this.selectedWallet.inkey,
+          {
+            name,
+            description,
+            image,
+            price,
+            unit
+          }
+        )
+        .then(response => {
+          this.$q.notify({
+            message: `Item '${this.itemDialog.data.name}' added.`,
+            timeout: 700
+          })
+          this.loadShop()
+          this.itemsDialog.show = false
+          this.itemsDialog.data = {...defaultItemData}
+        })
+        .catch(err => {
+          LNbits.utils.notifyApiError(err)
+        })
+    },
+    toggleItem(itemId) {
+      let item = this.offlineshop.items.find(item => item.id === itemId)
+      item.enabled = !item.enabled
+
+      LNbits.api
+        .request(
+          'PUT',
+          '/offlineshop/api/v1/offlineshop/items/' + itemId,
+          this.selectedWallet.inkey,
+          item
+        )
+        .then(response => {
+          this.$q.notify({
+            message: `Item ${item.enabled ? 'enabled' : 'disabled'}.`,
+            timeout: 700
+          })
+          this.offlineshop.items = this.offlineshop.items
+        })
+        .catch(err => {
+          LNbits.utils.notifyApiError(err)
+        })
+    },
+    deleteItem(itemId) {
+      LNbits.utils
+        .confirmDialog('Are you sure you want to delete this item?')
+        .onOk(() => {
+          LNbits.api
+            .request(
+              'DELETE',
+              '/offlineshop/api/v1/offlineshop/items/' + itemId,
+              this.selectedWallet.inkey
+            )
+            .then(response => {
+              this.$q.notify({
+                message: `Item deleted.`,
+                timeout: 700
+              })
+              this.offlineshop.items.splice(
+                this.offlineshop.items.findIndex(item => item.id === itemId),
+                1
+              )
+            })
+            .catch(err => {
+              LNbits.utils.notifyApiError(err)
+            })
+        })
+    }
+  },
+  created() {
+    this.selectedWallet = this.g.user.wallets[0]
+    this.loadShop()
+  }
+})

lnbits/extensions/offlineshop/templates/offlineshop/_api_docs.html

@@ -0,0 +1,46 @@
+<q-expansion-item
+  group="extras"
+  icon="swap_vertical_circle"
+  label="How to use"
+  :content-inset-level="0.5"
+>
+  <q-card>
+    <q-card-section>
+      <p>
+        Sell stuff offline, accept Lightning payments. Powered by LNURL-pay.
+      </p>
+    </q-card-section>
+  </q-card>
+</q-expansion-item>
+
+<q-expansion-item
+  group="extras"
+  icon="swap_vertical_circle"
+  label="API info"
+  :content-inset-level="0.5"
+>
+  <q-expansion-item
+    group="api"
+    dense
+    expand-separator
+    label="Get the shop data along with items"
+  >
+    <q-card>
+      <q-card-section>
+        <code><span class="text-blue">GET</span></code>
+        <h5 class="text-caption q-mt-sm q-mb-none">Headers</h5>
+        <code>{"X-Api-Key": &lt;invoice_key&gt;}</code><br />
+        <h5 class="text-caption q-mt-sm q-mb-none">Body (application/json)</h5>
+        <h5 class="text-caption q-mt-sm q-mb-none">
+          Returns 200 OK (application/json)
+        </h5>
+        <code>[&lt;offlineshop object&gt;, ...]</code>
+        <h5 class="text-caption q-mt-sm q-mb-none">Curl example</h5>
+        <code
+          >curl -X GET {{ request.url_root }}/offlineshop/api/v1/offlineshop -H
+          "X-Api-Key: {{ g.user.wallets[0].inkey }}"
+        </code>
+      </q-card-section>
+    </q-card>
+  </q-expansion-item>
+</q-expansion-item>

lnbits/extensions/offlineshop/templates/offlineshop/index.html

@@ -0,0 +1,195 @@
+{% extends "base.html" %} {% from "macros.jinja" import window_vars with context
+%} {% block page %}
+<div class="row q-col-gutter-md">
+  <div class="col-12 col-md-7 q-gutter-y-md">
+    <q-card>
+      <q-card-section>
+        <div class="row items-center no-wrap q-mb-md">
+          <div class="col">
+            <h5 class="text-subtitle1 q-my-none">Items</h5>
+          </div>
+          <div class="col q-ml-lg">
+            <q-btn
+              unelevated
+              color="deep-purple"
+              @click="itemDialog.show = true"
+              >Add new item</q-btn
+            >
+          </div>
+        </div>
+        {% raw %}
+        <q-table
+          dense
+          flat
+          :data="offlineshop.items"
+          row-key="id"
+          no-data-label="No items for sale yet"
+          :pagination="{rowsPerPage: 0}"
+          :binary-state-sort="true"
+        >
+          <template v-slot:header="props">
+            <q-tr :props="props">
+              <q-th auto-width></q-th>
+              <q-th auto-width>Name</q-th>
+              <q-th auto-width>Description</q-th>
+              <q-th auto-width>Image</q-th>
+              <q-th auto-width>Price</q-th>
+              <q-th auto-width></q-th>
+            </q-tr>
+          </template>
+          <template v-slot:body="props">
+            <q-tr :props="props">
+              <q-td auto-width>
+                <q-btn
+                  unelevated
+                  dense
+                  size="xs"
+                  :icon="props.row.enabled ? 'done' : 'block'"
+                  :color="props.row.enabled ? 'green' : ($q.dark.isActive ? 'grey-7' : 'grey-5')"
+                  type="a"
+                  @click="toggleItem(props.row.id)"
+                  target="_blank"
+                ></q-btn>
+              </q-td>
+              <q-td auto-width>{{ props.row.name }}</q-td>
+              <q-td auto-width> {{ props.row.description }} </q-td>
+              <q-td class="text-right" auto-width>
+                <q-img
+                  v-if="props.row.image"
+                  :src="props.row.image"
+                  :ratio="1"
+                  style="height: 1em"
+                />
+              </q-td>
+              <q-td class="text-center" auto-width>
+                {{ props.row.price }} {{ props.row.unit }}
+              </q-td>
+              <q-td auto-width>
+                <q-btn
+                  unelevated
+                  dense
+                  size="xs"
+                  icon="delete"
+                  color="negative"
+                  type="a"
+                  @click="deleteItem(props.row.id)"
+                  target="_blank"
+                ></q-btn>
+              </q-td>
+            </q-tr>
+          </template>
+        </q-table>
+        {% endraw %}
+      </q-card-section>
+    </q-card>
+
+    <q-card class="q-pa-sm col-5">
+      <q-card-section class="q-pa-none text-center">
+        <q-form class="q-gutter-md">
+          <q-select
+            filled
+            dense
+            :options="g.user.wallets"
+            :value="selectedWallet"
+            label="Using wallet:"
+            option-label="name"
+            @input="changedWallet"
+          >
+          </q-select>
+        </q-form>
+      </q-card-section>
+    </q-card>
+  </div>
+
+  <div class="col-12 col-md-5 q-gutter-y-md">
+    <q-card>
+      <q-card-section>
+        <h6 class="text-subtitle1 q-my-none">LNbits OfflineShop extension</h6>
+      </q-card-section>
+      <q-card-section class="q-pa-none">
+        <q-separator></q-separator>
+        <q-list> {% include "offlineshop/_api_docs.html" %} </q-list>
+      </q-card-section>
+    </q-card>
+  </div>
+
+  <q-dialog v-model="itemDialog.show" position="top">
+    <q-card class="q-pa-lg q-pt-xl lnbits__dialog-card">
+      <q-card-section>
+        <q-form @submit="addItem" class="q-gutter-md">
+          <q-input
+            filled
+            dense
+            v-model.trim="itemDialog.data.name"
+            type="text"
+            label="Item name"
+          ></q-input>
+          <q-input
+            filled
+            dense
+            v-model.trim="itemDialog.data.description"
+            type="text"
+            label="Brief description"
+          ></q-input>
+          <q-file
+            filled
+            dense
+            capture="environment"
+            accept="image/jpeg, image/png"
+            :max-file-size="1048576"
+            label="Small image (optional)"
+            clearable
+            @input="imageAdded"
+            @clear="imageCleared"
+          >
+            <template v-if="itemDialog.data.image" v-slot:append>
+              <q-icon
+                name="cancel"
+                @click.stop.prevent="imageCleared"
+                class="cursor-pointer"
+              />
+            </template>
+          </q-file>
+          <canvas id="uploading-image"></canvas>
+          <q-input
+            filled
+            dense
+            v-model.number="itemDialog.data.price"
+            type="number"
+            min="1"
+            :label="`Item price (${itemDialog.data.unit})`"
+          ></q-input>
+          <q-select
+            filled
+            dense
+            v-model="itemDialog.data.unit"
+            type="text"
+            label="Unit"
+            :options="itemDialog.units"
+          ></q-select>
+
+          <div class="row q-mt-lg">
+            <div class="col q-ml-lg">
+              <q-btn
+                unelevated
+                color="deep-purple"
+                :disable="disabledAddItemButton()"
+                type="submit"
+                >Add item</q-btn
+              >
+            </div>
+            <div class="col q-ml-lg">
+              <q-btn v-close-popup flat color="grey" class="q-ml-auto"
+                >Cancel</q-btn
+              >
+            </div>
+          </div>
+        </q-form>
+      </q-card-section>
+    </q-card>
+  </q-dialog>
+</div>
+{% endblock %} {% block scripts %} {{ window_vars(user) }}
+<script src="https://cdn.jsdelivr.net/npm/pica@6.1.1/dist/pica.min.js"></script>
+<script src="/offlineshop/static/js/index.js"></script>
+{% endblock %}

lnbits/extensions/offlineshop/views.py

@@ -0,0 +1,34 @@
+import time
+from quart import g, render_template, request
+from http import HTTPStatus
+
+from lnbits.decorators import check_user_exists, validate_uuids
+from lnbits.core.models import Payment
+from lnbits.core.crud import get_standalone_payment
+
+from . import offlineshop_ext
+from .crud import get_item, get_shop
+
+
+@offlineshop_ext.route("/")
+@validate_uuids(["usr"], required=True)
+@check_user_exists()
+async def index():
+    return await render_template("offlineshop/index.html", user=g.user)
+
+
+@offlineshop_ext.route("/confirmation")
+async def confirmation_code():
+    payment_hash = request.args.get("p")
+    payment: Payment = await get_standalone_payment(payment_hash)
+    if not payment:
+        return f"Couldn't find the payment {payment_hash}.", HTTPStatus.NOT_FOUND
+    if payment.pending:
+        return f"Payment {payment_hash} wasn't received yet. Please try again in a minute.", HTTPStatus.PAYMENT_REQUIRED
+
+    if payment.time + 60 * 15 < time.time():
+        return "too much time has passed."
+
+    item = await get_item(payment.extra.get("item"))
+    shop = await get_shop(item.shop)
+    return shop.next_word(payment_hash)

lnbits/extensions/offlineshop/views_api.py

@@ -0,0 +1,72 @@
+from quart import g, jsonify
+from http import HTTPStatus
+from lnurl.exceptions import InvalidUrl as LnurlInvalidUrl  # type: ignore
+
+from lnbits.decorators import api_check_wallet_key, api_validate_post_request
+
+from . import offlineshop_ext
+from .crud import (
+    get_or_create_shop_by_wallet,
+    add_item,
+    update_item,
+    get_items,
+    delete_item_from_shop,
+)
+
+
+@offlineshop_ext.route("/api/v1/offlineshop", methods=["GET"])
+@api_check_wallet_key("invoice")
+async def api_shop_from_wallet():
+    shop = await get_or_create_shop_by_wallet(g.wallet.id)
+    items = await get_items(shop.id)
+
+    try:
+        return (
+            jsonify({**shop._asdict(), **{"items": [item._asdict() for item in items],},}),
+            HTTPStatus.OK,
+        )
+    except LnurlInvalidUrl:
+        return (
+            jsonify({"message": "LNURLs need to be delivered over a publically accessible `https` domain or Tor."}),
+            HTTPStatus.UPGRADE_REQUIRED,
+        )
+
+
+@offlineshop_ext.route("/api/v1/offlineshop/items", methods=["POST"])
+@offlineshop_ext.route("/api/v1/offlineshop/items/<item_id>", methods=["PUT"])
+@api_check_wallet_key("invoice")
+@api_validate_post_request(
+    schema={
+        "name": {"type": "string", "empty": False, "required": True},
+        "description": {"type": "string", "empty": False, "required": True},
+        "image": {"type": "string", "required": False},
+        "price": {"type": "number", "required": True},
+        "unit": {"type": "string", "allowed": ["sat", "USD"], "required": True},
+    }
+)
+async def api_add_or_update_item(item_id=None):
+    shop = await get_or_create_shop_by_wallet(g.wallet.id)
+    if item_id == None:
+        await add_item(
+            shop.id, g.data["name"], g.data["description"], g.data.get("image"), g.data["price"], g.data["unit"],
+        )
+        return "", HTTPStatus.CREATED
+    else:
+        await update_item(
+            shop.id,
+            item_id,
+            g.data["name"],
+            g.data["description"],
+            g.data.get("image"),
+            g.data["price"],
+            g.data["unit"],
+        )
+        return "", HTTPStatus.OK
+
+
+@offlineshop_ext.route("/api/v1/offlineshop/items/<item_id>", methods=["DELETE"])
+@api_check_wallet_key("invoice")
+async def api_delete_item(item_id):
+    shop = await get_or_create_shop_by_wallet(g.wallet.id)
+    await delete_item_from_shop(shop.id, item_id)
+    return "", HTTPStatus.NO_CONTENT

lnbits/extensions/offlineshop/wordlists.py

@@ -0,0 +1,28 @@
+animals = [
+    "albatross",
+    "bison",
+    "chicken",
+    "duck",
+    "eagle",
+    "flamingo",
+    "gorila",
+    "hamster",
+    "iguana",
+    "jaguar",
+    "koala",
+    "llama",
+    "macaroni penguim",
+    "numbat",
+    "octopus",
+    "platypus",
+    "quetzal",
+    "rabbit",
+    "salmon",
+    "tuna",
+    "unicorn",
+    "vulture",
+    "wolf",
+    "xenops",
+    "yak",
+    "zebra",
+]