mongodb

[mikenomitch]

The mongodb does not work even with node_compat_v2 on.

It can be imported, but it does not properly connect to a DB. The package relies on net.Socket and tls.TLSSocket.

See Issue for more context: cloudflare/workers-sdk#6684
See Blog for more context: https://alexbevi.com/blog/2024/09/11/why-cloudflare-workers-dont-work-with-mongodb/

[vicb]

@xofyarg reported an issue on the unenv repo which @pi0 fixed.

It should be integrated in unenv with cloudflare/workers-sdk#6920

[vicb]

/cc @ricky11 @anonrig

[anonrig]

Working on this - #3315

[tobsn]

/cc @ricky11 @anonrig

it's been forever now... I can't remember when I encountered this the first time but it must be at least 2 years ago.
as new mongodb atlas instances now dont even list the deprecated data api menu tab and the existing instances will only be available for one more year, it's about hot damn time this gets fixed... ;)

thanks!

[anonrig]

Working on this - #3315

[tobsn]

Working on this - #3315

thank you! this way we can use cloudflare AI on cloudflare workers and still use our mongodb atlas instance... it will save us a massive amount of time and energy. I assume that will be the same with a lot of other people once they realize the September atlas data API deprecation deadline is approaching ... anyway, thanks again! immensely appreciated!

[faradaytrs]

I saw the thread on the forum which says that the only problem is that workers don't support TLS

[Yusaney]

I've started a new Mongodb instance, and I can't use it with my Cloudflare workers; I want to use a Cloudflare environment with queues, kv, etc., but I can't use it if workers don't actually work...

[tobsn]

/cc @ricky11 @anonrig

December 6th

[anonrig]

It's on my agenda. I'm going to be working on this starting from January.

[ricky11]

Amazing, tls support for workers whereby native mongodb drivers would work! that would be such a blessing!

[alexbevi]

@anonrig this is great news!

[Imtiajrex]

any movement on this @anonrig

[anonrig]

I've opened an in progress PR - #3315

[DaryeDev]

How can one use mongodb on Workers, now that node:net is merged?

[DaryeDev]

Great to know, thanks!

[vicb]

FYi, this code works on bleeding edge (available in 5-10 days)

[DaryeDev]

Perfect, should be just updating the worker library, then. Thanks!

[raininglemons]

Is there any where public these kind of releases can be tracked?

[vicb]

Is there any where public these kind of releases can be tracked?

We'll give an update here when the changes are deployed.
The current status is that all changes have been merged,
it will take a few days before this reaches wrangler and prod.

[vicb]

As promised, here is an update:

workerd now implements node:timers and node:net (thanks @anonrig).

wrangler 3.106 which was just released contains the latest version of workerd.

Meaning that you should be able to use mongodb from your node apps!

Please test and report your experiences!

🙏

edit:

You need to use the nodejs_compat compatibility flag with a compatibility date set after 2024-09-23.

I have tested with:

# wrangler.toml
compatibility_date = "2024-12-05"
compatibility_flags = ["nodejs_compat"]

[raininglemons]

If @JetLua can't provide a minimal reproducible example, I can share one later and a valid mongodb uri to a test atlas db instance.

FYI, tested with an older connection string, i.e. mongodb:// and it still gives the same issue. So don't think its related to mongodb+srv specifically

[JetLua]

@vicb

const client = new MongoClient('mongodb+srv://test:[email protected]/test')

const db = client.db()

console.log(await db.collection('test').countDocuments()) // output: 1

[vicb]

Thanks for the repro.

Took a quick look: the failing socket is an instance of TLSSocket which is implemented in unenv.

[anonrig]

@JetLua @vicb I'll be working on adding TLSSocket.

[alexbevi]

@anonrig looking forward to TLSSocket support!

[vicb]

/cc @alexbevi ☝️

[alexbevi]

Thanks for flagging @vicb. I've been following along closely and looking forward to testing this out now that the latest workerd is released with additional Node API support.