DO's are cheaper and faster (for a single region)

export async function getHashString(input) {
  const encoder = new TextEncoder();
  const data = encoder.encode(input);
  const hashBuffer = await crypto.subtle.digest('SHA-256', data);
  return bufferToHex(hashBuffer);
}

function bufferToHex(buffer) {
  const view = new DataView(buffer);
  let hex = '';
  for (let i = 0; i < view.byteLength; i += 1) {
    const byte = view.getUint8(i).toString(16);
    hex += byte.padStart(2, '0');
  }
  return hex;
}

export async function getHashString(input) {
  const encoder = new TextEncoder();
  const data = encoder.encode(input);
  const hashBuffer = await crypto.subtle.digest('SHA-256', data);
  return bufferToHex(hashBuffer);
}

function bufferToHex(buffer) {
  const view = new DataView(buffer);
  let hex = '';
  for (let i = 0; i < view.byteLength; i += 1) {
    const byte = view.getUint8(i).toString(16);
    hex += byte.padStart(2, '0');
  }
  return hex;
}

         await c.env.KV_CAMPAIGN.put(campaign.id, JSON.stringify({
            ...campaign
        }));
        const kv = await c.env.KV_CAMPAIGN.get(campaign.id)
        console.log("UPDATED KV",kv)

         await c.env.KV_CAMPAIGN.put(campaign.id, JSON.stringify({
            ...campaign
        }));
        const kv = await c.env.KV_CAMPAIGN.get(campaign.id)
        console.log("UPDATED KV",kv)

(new Blob([{ question: "is this correct way to measure if I fit in 1024bytes for KV metadata?" }])).size

(new Blob([{ question: "is this correct way to measure if I fit in 1024bytes for KV metadata?" }])).size