Strapi v4 Keycloak provider

Hello all,

I’m struggling trying to configure Strapi v4 to authenticate and save user info into users model using keycloak.

I followed this tutorial : Add a Custom OAuth2/OpenID Connect Provider to Strapi v4 but still getting the following error:

Error: connect ECONNREFUSED 127.0.0.1:80
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1187:16)
    at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
  errno: -111,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 80
}

TypeError: Cannot read properties of undefined (reading 'email')
    at Object.connect (/home/alexandre.odoni/dev/cmc/strapi-escola/node_modules/@strapi/plugin-users-permissions/server/services/providers.js:56:37)

below my providers-registry.js code:

async keycloak({ accessToken }) {
    console.log('KEYCLOAK')
    const keycloak = purest({
      provider: 'keycloak',
      config: {
        keycloak: {
          'https://lemur-4.cloud-iam.com/auth/realms/keycloak-test': {
            __domain: {
              auth: {
                auth: { bearer: '[0]' },
              },
            },
            '{endpoint}': {
              __path: {
                alias: '__default',
              },
            },
          },
        },
      },
    });

    try {
      const all = await keycloak
      .get('userinfo')
      .auth(accessToken)
      .request();
    } catch (err) {
      console.log(err);
    }

Any clues ?

Regards,