[WIP] GraphQL cache using Redis

GraphQLCache.md

When resolver returns node

The key will be the relay globalID and store all db item data. When the node is recovered, the viewerCanSee will filter this.

• postGlobalID
• postGlobalID
• commentGlobalID

Format

{
  "id": "globalID",
  "_id": "mongoID",
  "content": "build a cache with relay"
}

When resolver returns connection

The Key will concat the parent_id, query name, pagination info (first, after) and any possible other argument. At the end, the key will be parent_id::query::first::after::filters. The edge will store the cursor and a reference to the node.

• root::posts::10::postGlobalID
• meGlobalID::posts::10::postGlobalID
• root::comments::10::commentGlobalID

Format

{
  "pageInfo": {},
  "edges": [
    { "cursor": "postCursor", "node": "postGlobalID" },
    { "cursor": "postCursor", "node": "postGlobalID" },
    { "cursor": "postCursor", "node": "postGlobalID" }
  ]
}

Invalidating

When a mutation is called, the key and all connections with this globalID reference will be invalidated. Also, a TTL could be defined to remove the key after some time.