How to use multiple KV in a worker?

[wxzzzh]

I even can’t make a single KV work.

Here’s what I did:

1. Create a KV in cloudflare, let’s say it’s call xxx;
2. Run this command: wrangler kv:key put --binding=xxx “yyy” “zzz”, successed.
3. Add it in wrangler.towl:
   kv_namespaces = [
   { binding = “xxxt”, id = “*************************************” }
   ]
4. Use it in worker.ts file:
   const x=xxx.get(yyy);
   it says: Cannot find name ‘xxx’.ts(2304)

[wxzzzh]

Just notice there’s a typo here:
kv_namespaces = [
{ binding = “xxxt”, id = “*******************************************” }
]
it’s just in this topic, not in towl, so, I still need help on this.

[Walshy]

Are you using module syntax (export default { fetch() } rather than addEventListener)? If so, you access the bindings from the env property like so:

export default {
  fetch(req, env) {
    await env.KV.get();
  }
}

If not, please share your code and actual wrangler.toml (nothing in there is sensitive) so we can help debug.

[wxzzzh]

Yeah, you are right, problem solved.
Sorry, I’m not familiar with these things, but as I see, now that module syntax was used by default, cloudflare’s document should at least mention how to use it in this way, right?
Thank you so much for the help, @Walshy

[wxzzzh]

Hi, @Walshy ,

‘await env.KV.get();’ solved my coding issue, but stucked on running.
Below is the whole list of error:

.internal-6d5dc2e3-0…d8e3-facade-1.js:14 TypeError: Cannot read properties of undefined (reading ‘get’)
at Object.fetch (worker.js:19:18)
at facade_modules_fetch (.internal-6d5dc2e3-0…8e3-loader.js:23:17)
at facade_invokeChain (.internal-6d5dc2e3-0…8e3-common.js:16:10)
at Object.next (.internal-6d5dc2e3-0…8e3-common.js:13:14)
at jsonError (.internal-6d5dc2e3-0…3-facade-1.js:12:32)
at facade_invokeChain (.internal-6d5dc2e3-0…8e3-common.js:16:10)
at Object.next (.internal-6d5dc2e3-0…8e3-common.js:13:14)
at scheduled (.internal-6d5dc2e3-0…e3-facade-0.js:9:24)
at facade_invokeChain (.internal-6d5dc2e3-0…8e3-common.js:16:10)
at facade_invoke (.internal-6d5dc2e3-0…8e3-common.js:19:10)

I’m sure I added the 2 KVs in wrangler.toml…

[wxzzzh]

You may think I don’t have to use env.KV.get().
But I have to, because I also need to use R2 in same worker.

[WalshyMVP]

What’s the binding name you set in the wrangler.toml? You will need to use that in place of KV

e.g. if your wrangler.toml was

kv_namespaces = [
  { binding = "KV", id = "..." }
]

Then env.KV would work since you’re setting the binding to live on KV

But if it was like:

kv_namespaces = [
  { binding = "FILES", id = "..." }
]

Then you’d want to be accessing through env.FILES

[wxzzzh]

Got it, I fixed it as you told.

Sorry I misunderstood the KV…