Manually create an object of type NexusContext

[brainafesoh]

Hi, guys
I would like to manually inititialize a Nexus context object so as to be able to call a resolver function from an external function rather than from the mutation or query itself:

Not sure I'm expressing myself correctly!!
The query & resolver functions go as such;

// Resolver function
export const allUsers = async (ctx: NexusContext) => {
  return await ctx.db.user.findMany()
}
// Query
schema.extendType({
  type: "Query",
  definition(t) {
      t.field("allUsers", {
        type: "User",
        list: true,
        resolve: async (_parent, _args, ctx) => {
          try {
            return await allUsers(ctx)
          } catch (error) {
            return error
          }
        },
      })
  },
})

I would like to use the resolver function without passing through the query, therefore I need to manually create a ctx object. Here's how I'm trying to do it, but I don't seem to figure out what has to go into the req and res attributes;

const prisma = new PrismaClient()
const ctx: NexusContext = { db: prisma, token: "", log: Logger.log, req: {}, res {} }

@jasonkuhrt