nuxt server methods auth middleware

auth.ts

// server/middleware/auth.ts

import { DecodedIdToken } from 'firebase-admin/lib/auth/token-verifier'
import { createAuth } from '@/libs/firebase/firebaseAdmin'

export interface AuthContext {
  isAuthenticated: boolean
  user: DecodedIdToken | null
}

export default defineEventHandler(async (event) => {
  const config = useRuntimeConfig()
  const url = getRequestURL(event)

  const isApiCall = url.pathname.includes('/api')

  if (!isApiCall) {
    return
  }

  const contextAuth: AuthContext = {
    isAuthenticated: false,
    user: null,
  }

  const authorization = event.node.req.headers.authorization

  if (!authorization) {
    event.context.auth = contextAuth
    return
  }

  const [, token] = authorization.split(' ')

  const auth = createAuth({
    projectId: config.public.firebaseAdminProjectId,
    clientEmail: config.public.firebaseAdminClientEmail,
    privateKey: config.public.firebaseAdminPrivateKey,
  })

  try {
    const checkRevoked = false
    const decoded = await auth.verifyIdToken(token, checkRevoked)                       

    contextAuth.isAuthenticated = true
    contextAuth.user = decoded as DecodedIdToken

    event.context.auth = contextAuth
  } catch (e) {
    console.log('* auth error', e)
    event.context.auth = contextAuth
  }
})