How to access catbox client instances through the framework?

[osukaa]

Support plan

• which support plan is this issue covered by? (e.g. Community, Core, Plus, or Enterprise): Community
• is this issue currently blocking your project? (yes/no): no
• is this issue affecting a production system? (yes/no): no

Context

• node version: LTS 12
• module version: hapi@19
• environment (e.g. node, browser, native): node
• used with (e.g. hapi application, another framework, standalone, ...): hapi application and catbox
• any other relevant information:

How can we help?

My current setup includes creating a custom catbox Redis client, which also provides metrics as part of its public API.

I would like to know if there's a way to have access to the instance so that I can pull the metrics out.

Or if not possible, is there a way to plug the metrics into the framework itself? through the events or similar?

 const server = hapi.server({
    cache: [
      {
        provider: {
          constructor: require('custom-catbox-redis'),
          options: redisOptions,
        }
      }
    ],
  });

// how could I get the instance back?

[osukaa]

I went through the code and found about _core.caches, but I don't feel that it is correct to access the underscore property.

[hueniverse]

When you provision a server.cache() you can now get cache.client with access to the cache implementation.