firecrawl/apps/api/src/services/idempotency/validate.ts

import { Request } from "express";
import { supabase_service } from "../supabase";
import { validate as isUuid } from 'uuid';
import { Logger } from "../../../src/lib/logger";

export async function validateIdempotencyKey(
  req: Request,
): Promise<boolean> {
  const idempotencyKey = req.headers['x-idempotency-key'];
  if (!idempotencyKey) {
    // // not returning for missing idempotency key for now
    return true;
  }
   // Ensure idempotencyKey is treated as a string
   const key = Array.isArray(idempotencyKey) ? idempotencyKey[0] : idempotencyKey;
   if (!isUuid(key)) {
     Logger.debug("Invalid idempotency key provided in the request headers.");
     return false;
   }

  const { data, error } = await supabase_service
    .from("idempotency_keys")
    .select("key")
    .eq("key", idempotencyKey);
  
  if (error) {
    Logger.error(`Error validating idempotency key: ${error}`);
  }

  if (!data || data.length === 0) {
    return true;
  }

  return false;
}