JBest latency is always going to be not using one, but https://orm.drizzle.team/ is known for really nice DX and does support D1 
https://orm.drizzle.team/docs/connect-cloudflare-d1
https://orm.drizzle.team/docs/connect-cloudflare-d1Drizzle ORM is a lightweight and performant TypeScript ORM with developer experience in mind.
Drizzle ORM is a lightweight and performant TypeScript ORM with developer experience in mind.
N:MeowHeartCloudflare:
NAre prepared statements in d1 good to prevent sql injections?
JYep! Prepared statements in any sql platform are a great way to help prevent sql injection, as well as generally being faster if run multiple times
KHi, quick question does d1 (and wrangler) supports multi-statement SQL transaction in one go? Is there a documentation I can check?
DCloudflare Docs
To interact with your D1 database from your Worker, you need to access it through the environment bindings provided to the Worker (env).
Kyeah this is what I'm looking for. Thanks @Dean ! 
DI don't believe there is anything in writing on the D1 roadmap. Officially we know they're working on database replication but that's about it 
OQ. The overview doc says:
How does this work? Can I provision a new one programatically (perhaps via CloudFlar API) or am I to create new D1 manually?
Or these multiple databases are provisioned automatically for me, e.g. my users in Japan would have one while my users in Brazil will have a different one?
In either of these scenarios the databases would have different data right?
OR
These databases are automatically replicated through CloudFlare's network and each group would have one D1 (Japan, and Brazil) but with the same data? If that's the case that means the max storage globally is 10gb?
I couldn't find this information in the docs.
D1 is designed for horizontal scale out across multiple, smaller (10 GB) databases, such as per-user, per-tenant or per-entity databases. D1 allows you to build applications with thousands of databases at no extra cost for isolating with multiple databases. D1 pricing is based only on query and storage costs.
How does this work? Can I provision a new one programatically (perhaps via CloudFlar API) or am I to create new D1 manually?
Or these multiple databases are provisioned automatically for me, e.g. my users in Japan would have one while my users in Brazil will have a different one?
In either of these scenarios the databases would have different data right?
OR
These databases are automatically replicated through CloudFlare's network and each group would have one D1 (Japan, and Brazil) but with the same data? If that's the case that means the max storage globally is 10gb?
I couldn't find this information in the docs.
DYou can create multiple databases via the API and set a location hint: https://developers.cloudflare.com/d1/configuration/data-location/#:~:text=Location%20hint%20is%20an%20optional,are%20creating%20the%20database%20from They are not automatically provisioned in different regions. They would have different data. D1 databases do not have replication yet, however that is something that is expected to come soon.
OExcellent, thank you for clarifying.
My use case is precisely that. Think of a reddit clone, every subreddit can have their own D1 located where it was created.
My use case is precisely that. Think of a reddit clone, every subreddit can have their own D1 located where it was created.
Dsomething to keep in mind, while cloudflare allows 50,000 databases, they only allow a max of around 5000 databases to be binded to a worker or CF pages.
OI see. Well I'm way too far away from that volume yet, so that will be a good problem to have
OThank you @Dean
DYouβre welcome
γ·On Cloudflare d1, when I use the execute command, the table creation works when remote, but when local, I get an EOF error.
- wrangler version: 3.109.1 (install by bun)
- schema.sql
- wrangler.jsonc
- run command: wrangler d1 execute test-d1 --local --file=schema.sql (EOF ERROR)
- run command2: wrangler d1 execute test-d1 --remote --file=schema.sql (SUCCESS)
- what I tried: wrangler reinstall, bun cache ckear,
D"compatibility_flags": ["nodejs_compat"]
γ"pages_build_output_dir": .vercel/output/static",
missing a comma at compability_flag and the outbound directory missing a "
γ"pages_build_output_dir": .vercel/output/static",
missing a comma at compability_flag and the outbound directory missing a "
Dother than that, looks okay
γ·I fixed it, but it still doesn't work.
DDoes your schema file end with comments?
γ·No, it doesn't
DI faced this weird error where having comments at the end threw errors
DLooks like not the case here
ZHey, been testing out d1 doing bulk imports of data, the upload appears to now be failing though with a gateway timeout. Any idea what's going on there?
ZThis was while it was trying to check if it should upload the .sql file or not
JHow large is your sql file? Can you reproduce it consistently? Can you share a reproduction if so?
ZIt was working consistently earlier, I have uploaded the same sized files repeatedly and then wiped the database. The files are around 30MB each
ZI'm uploading 50 one after another to chunk the ingestion
ZIts around 6 million total rows
ZThe weird part was it wasn't even failing to upload, it was failing on the check to see if it needed to upload. It never actually got that far
ZJust tested again now and still experiencing this problem, I effectively can't import any .sql files right now
ZThe entire D1 (non-worker) API seems to be significantly slower for me compared to earlier today
ZIt appears that wiping the table and starting again resolves the problem, so it may be something that gets worse as the table gets bigger?
Jidk if i am right here; but the german translation for table in the webui is absolutely wrong:
Jis there any way for cloudflare to change it to the correct translation? it would be "Tabellen"
οΏ½Ki ΓΌbersetzungen sind doch was tolles 
ZZIs this in preparation for read replicas? 
Ai hope so
:crossed_fingers_intensifies:
:crossed_fingers_intensifies:
Aat this point I wonder if theyre waiting until developer week (which is april iirc?) to launch it
Johja, richtig klasse :D
AIs D1 down? Getting lots of
Error: D1_ERROR: internal errorALooks to be working now, but there was about 4 mins of downtime (no changes made on our end)
ACan i ask a doubt like can we use the D1 on the nextjs hosted on verel and i am unable to use it on local development i have separrte backend in hono cf workers for admin pannel but for seo i am trying to access the data within the nextjs but still i can't can anybody help
UYou cant use D1 on vercel in that way. Vercel doesnt have cloudflare bindings. If you wanted to query D1 from Vercel you would need to either use the Rest API or create a worker to proxy requests to the D1 binding.
Aso are you mentioning that i should use my hono backend in cf workers to power the users front end also like fetch data in server are try to cache it to increase perfomance ? and also i don't get this point "create a worker to proxy requests to the D1 binding." like can you explain or do you have any article on it
Ai also tried to host nextjs in pages but the styles are breaking in pages preview
UNot referencing cache or performance at all. Just pointing out that you cannot access a cloudflare binding from vercel because vercel is not cloudflare.
The only way to query data from D1 from the vercel servers would be to call a cloudflare worker or the cloudflare api.
The only way to query data from D1 from the vercel servers would be to call a cloudflare worker or the cloudflare api.
AI am confused like on production we can use the db url in the drizzle and it will handle the db interactions so i thought that we can use d1 in the vercel but on development stage we need local db as per the d1 docs
