WIP lightning addr

next.config.js

@@ -1,11 +1,11 @@
 const { withPlausibleProxy } = require('next-plausible')
-const { RuntimeSources } = require('/opt/elasticbeanstalk/deployment/app_version_manifest.json') // eslint-disable-line
 
 module.exports = withPlausibleProxy()({
   compress: false,
   generateBuildId: async () => {
     // use the app version which eb doesn't otherwise give us
     // as the build id
+    const { RuntimeSources } = require('/opt/elasticbeanstalk/deployment/app_version_manifest.json') // eslint-disable-line
     return Object.keys(RuntimeSources['stacker.news'])[0]
   },
   async rewrites () {
@@ -17,6 +17,10 @@ module.exports = withPlausibleProxy()({
       {
         source: '/story',
         destination: '/items/1620'
+      },
+      {
+        source: '/.well-known/lnurlp/:username',
+        destination: '/api/lnurlp/:username'
       }
     ]
   }

pages/api/lnurlp/[username]/index.js

@@ -0,0 +1,18 @@
+import models from '../../../../api/models'
+
+export default async ({ query: { username } }, res) => {
+  const user = await models.user.findUnique({ where: { name: username } })
+  if (!user) {
+    return res.status(400).json({ status: 'ERROR', reason: `user @${username} does not exist` })
+  }
+
+  return res.status(200).json({
+    callback: `/api/lnurlp/${username}/pay`, // The URL from LN SERVICE which will accept the pay request parameters
+    minSendable: 1000, // Min amount LN SERVICE is willing to receive, can not be less than 1 or more than `maxSendable`
+    metadata: [[
+      'text/plain', // must always be present
+      `Funding @${username} on stacker.news` // actual metadata content
+    ]], // Metadata json which must be presented as raw string here, this is required to pass signature verification at a later step
+    tag: 'payRequest' // Type of LNURL
+  })
+}

pages/api/lnurlp/[username]/pay.js

@@ -0,0 +1,47 @@
+import models from '../../../../api/models'
+import lnd from '../../../../api/lnd'
+import { createInvoice } from 'ln-service'
+
+export default async ({ query: { username, amount } }, res) => {
+  const user = await models.user.findUnique({ where: { name: username } })
+  if (!user) {
+    return res.status(400).json({ status: 'ERROR', reason: `user @${username} does not exist` })
+  }
+
+  if (!amount || amount < 1000) {
+    return res.status(400).json({ status: 'ERROR', reason: 'amount must be >=1000 msats' })
+  }
+
+  // generate invoice
+  const expiresAt = new Date(new Date().setHours(new Date().getHours() + 3))
+  const description = `${amount} msats for @${user.name} on stacker.news`
+  try {
+    const invoice = await createInvoice({
+      description,
+      lnd,
+      mtokens: amount,
+      expires_at: expiresAt
+    })
+
+    const data = {
+      hash: invoice.id,
+      bolt11: invoice.request,
+      expiresAt: expiresAt,
+      msatsRequested: Number(amount),
+      user: {
+        connect: {
+          id: user.id
+        }
+      }
+    }
+
+    await models.invoice.create({ data })
+
+    return res.status(200).json({
+      pr: invoice.request
+    })
+  } catch (error) {
+    console.log(error)
+    res.status(400).json({ status: 'ERROR', reason: 'failed to create invoice' })
+  }
+}