Bloom Filter accessors

To access Bloom Filter values in a KV Store. First create a KV Instance using KvStore.open()

This instance will then provide the bfExists method you can use to verify if a value exists.

zrangeByScore

import { KvStore } from 'fastedge::kv';

async function eventHandler(event) {
  try {
    const myStore = KvStore.open('kv-store-name-as-defined-on-app');
    const hasItem = myStore.bfExists('key', 'value');
    return new Response(`The KV Store responded with: ${hasItem}`);
  } catch (error) {
    return Response.json({ error: error.message }, { status: 500 });
  }
}

addEventListener('fetch', (event) => {
  event.respondWith(eventHandler(event));
});

SYNTAX

storeInstance.bfExists(key, value);

Parameters

• key (required)

  A string containing the key you want to retrieve the values from.

• value (required)

  A string representing the value you want to check for existence.

Return Value

boolean. It returns true if the Bloom Filter contains the value.