add support for reverse sorting of version if version is not specified

index.js

@@ -113,6 +113,11 @@ class ArweaveClient {
  await this.client.transactions.sign(tx, this.#key)
  const txResult = await this.client.transactions.post(tx)
 
+ // check if something went wrong
+ if (txResult.status !== 200) {
+ return Promise.reject(txResult)
+ }
+
  // success, update doc data, add to cache
  doc.txID = tx.id
  this.cache.set(doc.name, doc)
@@ -200,6 +205,10 @@ class ArweaveClient {
  owner {
  address
  }
+ tags {
+ name
+ value
+ }
  }
  }
  }
@@ -228,7 +237,13 @@ class ArweaveClient {
  const json = await req.json()
 
  // safe to get first item as we specify specific tags in the query building stage
- const txId = json.data.transactions.edges[0]?.node.id
+ const txId = version ?
+ json.data.transactions.edges[0]?.node.id :
+ json.data.transactions.edges.sort((a, b) => {
+ // we reverse sort edges if version is not defined to get latest version
+ const getVersion = (edge) => edge.node.tags.find(tag => tag.name === VERSION).value || 0
+ return getVersion(b) - getVersion(a)
+ })[0]?.node.id
  if (!txId) {
  return Promise.reject(`No transaction with name ${name} found`)
  }