fix: use proper http content negotiation for nip-11 accept headers

Author: sagar-h007

src/handlers/request-handlers/root-request-handler.ts

@@ -1,4 +1,5 @@
 import { NextFunction, Request, Response } from 'express'
+import accepts from 'accepts'
 import { path } from 'ramda'
 
 import { createSettings } from '../../factories/settings-factory'
@@ -9,7 +10,7 @@ import packageJson from '../../../package.json'
 export const rootRequestHandler = (request: Request, response: Response, next: NextFunction) => {
   const settings = createSettings()
 
-  if (request.header('accept')?.includes('application/nostr+json')) {
+  if (accepts(request).type(['application/nostr+json'])) {
     const {
       info: { name, description, pubkey: rawPubkey, contact, relay_url },
     } = settings

src/routes/index.ts

@@ -1,4 +1,5 @@
 import express from 'express'
+import accepts from 'accepts'
 
 import { nodeinfo21Handler, nodeinfoHandler } from '../handlers/request-handlers/nodeinfo-handler'
 import admissionRouter from './admissions'
@@ -12,7 +13,7 @@ import { rootRequestHandler } from '../handlers/request-handlers/root-request-ha
 const router = express.Router()
 
 router.use((req, res, next) => {
-  if (req.method === 'GET' && req.headers.accept?.includes('application/nostr+json')) {
+  if (req.method === 'GET' && accepts(req).type(['application/nostr+json'])) {
     return rootRequestHandler(req, res, next)
   }
   next()