@fortedigital/nextjs-cache-handler/dist/handlers/composite.js

Next.js cache handlers

// src/handlers/composite.ts
function createHandler({
  handlers,
  setStrategy: strategy
}) {
  if (handlers?.length < 2) {
    throw new Error("Composite requires at least two handlers");
  }
  return {
    name: "composite",
    async get(key, ctx) {
      for (const handler of handlers) {
        const value = await handler.get(key, ctx);
        if (value !== null) {
          return value;
        }
      }
      return null;
    },
    async set(key, data) {
      const index = strategy?.(data) ?? 0;
      const handler = handlers[index] ?? handlers[0];
      await handler.set(key, data);
    },
    async revalidateTag(tag) {
      await Promise.all(handlers.map((handler) => handler.revalidateTag(tag)));
    },
    async delete(key) {
      await Promise.all(handlers.map((handler) => handler.delete?.(key)));
    }
  };
}
export {
  createHandler as default
};