SDK-3807 Add custom session stores

[adamjmcgrath]

Adding the ability to provide a key value store like Redis to back sessions and make them stateful.

import { SessionStore, SessionStorePayload, initAuth0 } from '@auth0/nextjs-auth0';

class Store implements SessionStore {
  private store: KeyValueStoreLikeRedis<SessionStorePayload>;
  constructor() {
    // If you set the expiry accross the whole store use the session config,
    // e.g. `min(config.session.rollingDuration, config.session.absoluteDuration)`
    // the default is 24hrs
    this.store = new KeyValueStoreLikeRedis();
  }
  async get(id) {
    const val = await this.store.get(id);
    return val;
  }
  async set(id, val) {
    // To set the expiry per item, use `val.header.exp` (in secs)
    const expiryMs = val.header.exp * 1000;
    await this.store.set(id, val);
  }
  async delete(id) {
    await this.store.delete(id);
  }
}

export default initAuth0({
  session: {
    store: new Store()
  }
});

4e57b7e - Move the existing stateless cookie store
7a7e5d9 - Add stateful session store (main commit)
6468115, c5b87d8, 3e97155, efc5182 - Other commits are merges and adding/reverting deployment for the beta

fixes #279

Testing

Example app using a Redis session https://nextjs-auth0-redis-session.vercel.app/ (source code https://github.com/adamjmcgrath/nextjs-auth0-redis-session)

[vercel]

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1 Ignored Deployment

Name	Status	Preview	Updated
nextjs-auth0	⬜️ Ignored (Inspect)		Jan 10, 2023 at 4:06PM (UTC)

[Widcket]

LGTM! Thanks for being patient with the review.

[adamjmcgrath]

Thanks for the review @Widcket!