There are many implementations of data loaders available for sql language in go. But how can i implement dataloader functionality in golang using mongodb. I am using gqlgen library for my graphql code.

I want to fetch all the products with their category. I want to cashe the information of category.

My graphql query looks like :

query example {
  products: GetProducts{
    Id,
    Name, 
    Description,
    Price,
    Quantity,
    Category {
      Id,
      Name
    }
  },
}

For above query if there are 1000 products and 10 categories then i will query 1000 times for only 10 categories. Hence I want to cashe it.

My Mongodb Products Schema :

{
  "_id": {
    "$oid": "663c6371bd05f26997e9d528"
  },
  "name": "Gulab Jamun",
  "description": "this is a product",
  "price": 210.45,
  "quantity": 10,
  "category": "663b89711f437c9bcf6d3864"
}

My Mongodb Categories Schema :

{
  "_id": {
    "$oid": "663b896d1f437c9bcf6d3863"
  },
  "name": "electronics"
}