# workers-discussions
- h
HardAtWork
05/01/2023, 11:19 AMHere's a map of what datacenters you might hit, depending on your website tier: https://cloudflare.manfredi.io/en/tools/datacenters/ - w
Wichard
05/01/2023, 11:27 AMThanks, Im not sure how to interpret this though. I can see all of the datacenters in the map, but which ones correspond to which tier? - h
HardAtWork
05/01/2023, 11:27 AMLook at the table below. That shows which colo you are hitting for each tier - z
zegevlier
05/01/2023, 11:29 AMMost datacenters are available for all tiers. I really wouldn't worry about that unless you absolutely need the best of the best latency - z
zegevlier
05/01/2023, 11:30 AMThe major exception to that is China. If you want decent latency in China you will need an ICP licence like HardAtWork pointed out - b
Burrito
05/01/2023, 11:31 AMIs China locked behind enterprise tier? - h
HardAtWork
05/01/2023, 11:32 AMNo, China is a completely separate thing. You need to get approval from the government to use CF within the borders of China - b
Burrito
05/01/2023, 11:33 AMHmm, last time I checked it you need that and also enterprise tier, perhaps I remember wrong. - h
HardAtWork
05/01/2023, 11:34 AMMaybe? All I know is that the ICP license part requires government approval - b
boywithkeyboard
05/01/2023, 1:07 PMwhen will workers support tcp connections? is there a beta which is open to the public? - m
macmacmacprime
05/01/2023, 1:10 PMi just tried searching, but couldn't find a conclusive answer - m
macmacmacprime
05/01/2023, 1:10 PMcan I use my d1 db from a vercel edge function? - m
macmacmacprime
05/01/2023, 1:12 PMsince vercel edge functions are running on cloudflare workers? - m
macmacmacprime
05/01/2023, 1:12 PMor if not, what's the next-best thing? something like a hosted libsql? - m
macmacmacprime
05/01/2023, 1:13 PMso I have a functional cloudflare worker project that does JWT auth on it's own - m
macmacmacprime
05/01/2023, 1:13 PMi'd like to put that infront of a new nextjs project im working on - m
macmacmacprime
05/01/2023, 1:15 PMso options are just use the api endpoints as-is and try to make it work, put the nextjs proj on CF pages and have it create and bind the d1 DB to the functions() it creates, or -- ideally -- re-write the cf worker to be a vercel edge middleware function(s) - b
boywithkeyboard
05/01/2023, 1:16 PM@macmacmacprime could you please stop spamming the chat and open a thread in #1052656806058528849 ? - c
Cooleg
05/01/2023, 1:20 PMspeaking of which sorry abt asking for help here but im still real confused why this wont work https://discord.com/channels/595317990191398933/1101996847825944656 - z
zegevlier
05/01/2023, 1:49 PMThere is no timeline, but you can see there is some work happening with it on the workerd repo. - z
zegevlier
05/01/2023, 1:50 PMNext time, please phrase this more nicely. - b
btc10mm
05/01/2023, 2:03 PMWhat is the best compression library to use within a worker? I need to compress some data that will be stored in dynamodb, so not compressing the response, but a subrequest's payload - z
Zed
05/01/2023, 2:08 PMIs it possible to access more than one d1 database in a worker? I don't think I've seen examples of doing that. my idea was have one db for the shared data and access it in other workers + their own - s
Skye
05/01/2023, 2:10 PMYou can yes, you just make two separate bindings 🙂 - s
Skye
05/01/2023, 2:10 PMSame as having a D1 database and a KV namespace, for example - z
Zed
05/01/2023, 2:28 PMahh thank you. i guess when i tried that earlier i messed something up. i got it working with this format d1_databases = [] and kv examples - e
Erisa | Support Engineer
05/01/2023, 8:02 PMcorrect, China Network addon is only available to Enterprise customers (and with the ICP fun stuff mentioned) - b
Burrito
05/01/2023, 8:04 PMAh unfortunate, enterprise is too costly for small teams. - u
Unsmart | Tech debt
05/01/2023, 8:05 PMI assume dealing with the chinese government isnt exactly cheap 😛 - w
Walshy | Pages
05/01/2023, 8:05 PMit is pretty cheap iirc