Add an application

// try demo at https://github.com/nextauthjs/next-auth-example
   // go to file pages/api/auth/[...nextauth].ts and modify providers array as showcased below

   import NextAuth, { NextAuthOptions } from "next-auth"

   // For more information on each option (and a full list of options) go to
   // https://next-auth.js.org/configuration/options
   export const authOptions: NextAuthOptions = {
       secret: "some-secret-secret",
       // https://next-auth.js.org/configuration/providers/oauth
       providers: [
           {
               id: "cloudentity",
               name: "Cloudentity",
               type: "oauth",
               version: "2.0",
               wellKnown: "https://postmance.eu.authz.cloudentity.io/postmance/docs/.well-known/openid-configuration",
               clientId: "4f91bea492b74b819a5d9961977beef6",
               clientSecret: "PH-668ZM_6IGHE7Feji7UQZ5MOzZlBbKJ_9ctKmtIjg",
               authorization: {params: {scopes: ["openid", "profile", "email"]}},
               profile(profile) {
                   return {
                       id: profile.sub,
                       name: profile.name,
                       email: profile.email
                   }
               }
           }
       ],
       callbacks: {
           async jwt({ token }) {
               token.userRole = "admin"
               return token
           },
       },
   }

   export default NextAuth(authOptions)

// try demo at https://github.com/passport/todos-express-openidconnect
   // go to file routes/auth.js and modify the OpenIdConnectStrategy to use your cloudentity server configuration

   // ...

   passport.use(new OpenIDConnectStrategy({
       issuer: 'https://postmance.eu.authz.cloudentity.io/postmance/docs',
       authorizationURL: 'https://postmance.eu.authz.cloudentity.io/postmance/docs/oauth2/authorize>,
       tokenURL: 'https://postmance.eu.authz.cloudentity.io/postmance/docs/oauth2/token',
       userInfoURL: 'https://postmance.eu.authz.cloudentity.io/postmance/docs/userinfo',
       clientID: "95768bc9b1b94a35bd17b5d9fe5a66d0",
       clientSecret: "ojHkryV4hQS781l8nTtk-VmJFR4shjjpd96YQncCWd4",
       callbackURL: '/api/auth/callback/cloudentity',
       scope: [ 'profile' ]
   }, function verify(issuer, profile, cb) {
       return cb(null, profile);
   }));

   // ...

   router.get('/api/auth/callback/cloudentity', passport.authenticate('openidconnect', {
       successReturnToOrRedirect: '/',
       failureRedirect: '/login'
   }));