add paywall to api

package.json

@@ -23,6 +23,7 @@
     "next": "^12.3.0",
     "node-twitter": "^0.5.3",
     "number-to-words": "^1.2.4",
+    "paymeformyapi": "^0.0.2",
     "react": "^18.2.0",
     "react-charts": "^3.0.0-beta.48",
     "react-dom": "^18.2.0",

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 } = req.query
+
   try {
+    const { success, updated_api_token, invoice } = await paywall.deductBalance(api_token as string)
+
+    if (!success) {
+      res.status(402).json({
+        statusCode: 402,
+        message: 'Payment required. Please pay the invoice and update your api token.',
+        updated_api_token,
+        invoice,
+      })
+      return
+    }
+
     const { usd } = await getData()
 
     res.status(200).json({ usd })

yarn.lock

@@ -1748,6 +1748,15 @@
     "follow-redirects" "^1.14.9"
     "form-data" "^4.0.0"
 
+"axios@^1.4.0":
+  "integrity" "sha512-S4XCWMEmzvo64T9GfvQDOXgYRDJ/wsSZc7Jvdgx5u1sd0JwsuPLqb3SYmusag+edF6ziyMensPVqLTSc1PiSEA=="
+  "resolved" "https://registry.npmjs.org/axios/-/axios-1.4.0.tgz"
+  "version" "1.4.0"
+  dependencies:
+    "follow-redirects" "^1.15.0"
+    "form-data" "^4.0.0"
+    "proxy-from-env" "^1.1.0"
+
 "axobject-query@^2.2.0":
   "integrity" "sha512-Td525n+iPOOyUQIeBfcASuG6uJsDOITl7Mds5gFyerkWiX7qhUTdYUBlSgNMyVqtSJqwpt1kXGLdUt6SykLMRA=="
   "resolved" "https://registry.npmjs.org/axobject-query/-/axobject-query-2.2.0.tgz"
@@ -2752,7 +2761,7 @@
   dependencies:
     "tslib" "^2.0.3"
 
-"follow-redirects@^1.14.9":
+"follow-redirects@^1.14.9", "follow-redirects@^1.15.0":
   "integrity" "sha512-yLAMQs+k0b2m7cVxpS1VKJVvoz7SS9Td1zss3XRwXj+ZDH00RJgnuLx7E44wx02kQLrdM3aOOy+FpzS7+8OizA=="
   "resolved" "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.1.tgz"
   "version" "1.15.1"
@@ -3665,6 +3674,14 @@
   "resolved" "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz"
   "version" "4.0.0"
 
+"paymeformyapi@^0.0.2":
+  "integrity" "sha512-49hs5kM2rHq4NM+A1R5+kx7e1f49buqpIh3DbG76/kqhCWUWLcP8vLcdz788dlj2QTzRX+V7VuqQIGSqLl49oA=="
+  "resolved" "https://registry.npmjs.org/paymeformyapi/-/paymeformyapi-0.0.2.tgz"
+  "version" "0.0.2"
+  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"
@@ -3738,7 +3755,7 @@
     "object-assign" "^4.1.1"
     "react-is" "^16.13.1"
 
-"proxy-from-env@1.1.0":
+"proxy-from-env@^1.1.0", "proxy-from-env@1.1.0":
   "integrity" "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
   "resolved" "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz"
   "version" "1.1.0"