Implementing a "Prisma model converter middleware"

export const modelConverter = middleware(async (opts) => {
  const ctx: Record<string, any> = {};
  if (typeof opts.rawInput === "object") {
    for await (const key of Object.keys(opts.rawInput)) {
      const prismaModelKey = Object.keys(prisma).find(
        (m) => m.toLowerCase() === key
      );
      if (!prismaModelKey) {
        continue;
      }
      opts.ctx[prismaModelKey] = prisma[prismaModelKey]; // this should actually be `model.findUniqueOrThrow(rawInputValue)`
    }
  }
  return opts.next({ ctx } as { ctx: { [key: keyof typeof ctx]: any } });
});