<p>This sample shows how to use all of the different <a href="https://developer.fermyon.com/spin/kv-store-api-guide">Key/Value functions</a> in TypeScript, including how to decode results, trap errors in a <code>try/catch</code>, and work with JSON.</p>
<p>This will help you get started with KV storage either locally using <code>spin up</code> or in Fermyon Cloud using <code>spin deploy</code>.</p>
<p>Everything is demoed in one <code>index.ts</code> file. And while it is TypeScript, it is easily adapted to JavaScript with almost no changes (other than the occasional type annotation).</p>
<p>Here’s a snippet of the code you’ll see in this project:</p>
<pre><code class="language-javascript">  // We can get a list of all of the keys out of the DB.
  let keys = store.getKeys().join(", ")
  console.log("The keys in the DB are: " + keys)

  // Now we can get values back out. Note that the value is an array buffer,
  // so we have to convert it back to a string.
  let siteName = store.get("name")
  let dec = new TextDecoder("utf-8")
  // This will print "Pet Database" to the log
  console.log("Site name: " + dec.decode(siteName))

  // A non-existent key comes back with a null value.
  let noSuchValue = store.get("no-such-key")
  if (noSuchValue == null) {
    console.log("Got an expected 'null' for a nonexistent key")
  }
</code></pre>