From d8856abf3a97eaa4b03adba7b0a5b3aa1a610cff Mon Sep 17 00:00:00 2001
From: neb <nebb_bb@protonmail.com>
Date: Sat, 29 Apr 2023 18:53:31 -0500
Subject: [PATCH] add paywall to api

---
 package-lock.json     | 28 ++++++++++++++++++++++++++++
 package.json          |  1 +
 src/pages/api/data.ts | 28 ++++++++++++++++++++++++++--
 yarn.lock             |  7 +++++++
 4 files changed, 62 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 1501623..bb9b165 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,6 +22,7 @@
         "next": "^12.3.0",
         "node-twitter": "^0.5.3",
         "number-to-words": "^1.2.4",
+        "paymeformyapi": "file:../paymeformyapi",
         "react": "^18.2.0",
         "react-charts": "^3.0.0-beta.48",
         "react-dom": "^18.2.0",
@@ -37,6 +38,19 @@
         "typescript": "4.8.3"
       }
     },
+    "../paymeformyapi": {
+      "version": "0.0.4",
+      "license": "ISC",
+      "dependencies": {
+        "axios": "^1.4.0",
+        "uuid": "^9.0.0"
+      },
+      "devDependencies": {
+        "@types/uuid": "^9.0.1",
+        "nodemon": "^2.0.22",
+        "typescript": "^5.0.4"
+      }
+    },
     "node_modules/@ampproject/remapping": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.2.0.tgz",
@@ -5678,6 +5692,10 @@
         "node": ">=8"
       }
     },
+    "node_modules/paymeformyapi": {
+      "resolved": "../paymeformyapi",
+      "link": true
+    },
     "node_modules/pend": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
@@ -11495,6 +11513,16 @@
       "resolved": "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz",
       "integrity": "sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw=="
     },
+    "paymeformyapi": {
+      "version": "file:../paymeformyapi",
+      "requires": {
+        "@types/uuid": "^9.0.1",
+        "axios": "^1.4.0",
+        "nodemon": "^2.0.22",
+        "typescript": "^5.0.4",
+        "uuid": "^9.0.0"
+      }
+    },
     "pend": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
diff --git a/package.json b/package.json
index 22e2a54..0b38899 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
     "next": "^12.3.0",
     "node-twitter": "^0.5.3",
     "number-to-words": "^1.2.4",
+    "paymeformyapi": "^0.0.5",
     "react": "^18.2.0",
     "react-charts": "^3.0.0-beta.48",
     "react-dom": "^18.2.0",
diff --git a/src/pages/api/data.ts b/src/pages/api/data.ts
index 2f7a292..e59968e 100644
--- a/src/pages/api/data.ts
+++ b/src/pages/api/data.ts
@@ -1,8 +1,32 @@
-import { NextApiResponse, NextApiRequest } from "next"
-import { getData } from "core/data"
+import { NextApiResponse, NextApiRequest } from 'next'
+import PayMeForMyAPI from 'paymeformyapi'
+import { getData } from 'core/data'
+
+const paywall = new PayMeForMyAPI({
+  lnBitsAdminId: process.env.LN_BITS_ADMIN_ID,
+  lnBitsApiKey: process.env.LN_BITS_API_KEY,
+  lnBitsURL: process.env.LN_BITS_URL,
+  lnBitsAdminInvoiceKey: process.env.LN_BITS_ADMIN_INVOICE_KEY,
+  refillAmount: 50, // number of satoshis to refill
+  requestCost: 1, // number of satoshis per API call
+})
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  const { api_token: api_token_from_request } = req.query
+
   try {
+    const { success, api_token, invoice } = await paywall.deductBalance(api_token_from_request as string)
+
+    if (!success) {
+      res.status(402).json({
+        statusCode: 402,
+        message: 'Payment required. Please pay the invoice and update your api token.',
+        api_token,
+        invoice,
+      })
+      return
+    }
+
     const { usd } = await getData()
 
     res.status(200).json({ usd })
diff --git a/yarn.lock b/yarn.lock
index 57c50dd..a3ff9af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3665,6 +3665,13 @@
   "resolved" "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz"
   "version" "4.0.0"
 
+"paymeformyapi@file:../paymeformyapi":
+  "resolved" "file:../paymeformyapi"
+  "version" "0.0.4"
+  dependencies:
+    "axios" "^1.4.0"
+    "uuid" "^9.0.0"
+
 "pend@~1.2.0":
   "integrity" "sha512-F3asv42UuXchdzt+xXqfW1OGlVBe+mxa2mqI0pg5yAHZPvFmY3Y6drSf/GQ1A86WgWEN9Kzh/WrgKa6iGcHXLg=="
   "resolved" "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz"