OAuth strategy for Feathers v4

AuthenticationProviderStrategy.js

import _ from 'lodash'
import { OAuthStrategy } from '@feathersjs/authentication-oauth'

export class AuthenticationProviderStrategy extends OAuthStrategy {
  async getEntityData (profile, entity) {
    const createEntity = _.isNil(entity)
    // Add provider Id
    entity = { [`${this.name}Id`]: profile.id || profile.sub }
    // When creating a new user extract required information from profile
    if (createEntity) {
      _.set(entity, 'email', _.get(profile, this.emailFieldInProfile || 'email'))
      _.set(entity, 'name', _.get(profile, this.nameFieldInProfile || 'name'))
    }
    // Store provider profile information
    entity[`${this.name}`] = profile
    return entity
  }

  async getEntityQuery (profile) {
    return query = {
      $or: [
        { [`${this.name}Id`]: profile.id || profile.sub },
        { email: _.get(profile, this.emailFieldInProfile || 'email' ) }
      ],
      $limit: 1
    }
  }
}