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Building a credit card issuer in Brazil using Clojure and Datomic (2014) [video]
- johansch 11y agoIs it about more than than a web frontend? Also: 47 upvotes before my (first) comment is.. weird. Content spam?
- hellbanner 11y agoUp votes on content without comments aren't unusual if the reader likes the link or wants more people to see it. Could be spam, of course :)
- johansch 11y agoI would buy it on some very accessible text post - but come on, a video only post with 47 upvotes and no comments? Something is fishy here. Or maybe people just upvote anything that has the string "clojure" in it? :)
- tim333 11y agoAlso with 40 min videos some people feel they should watch the thing before commenting which delays stuff.
- hcarvalhoalves 11y agoDisclaimer: I work at Nubank, nice to see it posted here. This video is now one year old and it's nice to see how the technology choices at the start are still paying dividends. Datomic in particular is a pretty smart product backed by solid concepts (RDFs/triplestores, event sourcing, immutability, querying engine on the client side, datalog), something companies end up re-inventing in-house further down the line, so it's nice to be aware of the architecture even if not intending to use it.
- goldfeld 11y agoI'm brazilian and have been working with Clojure for a few years and used Datomic on a project earlier this year. Are you planning on hiring? Sorry for the thread hijack.
- hcarvalhoalves 11y agoCool! We are always hiring - you can see current open positions here: https://nubank.workable.com/ https://nubank.workable.com/
- Scarbutt 11y agoI didn't watch the video yet, what DB backend does Nubank uses for Datomic?
- tim333 11y ago"Datomic’s support for multiple storage backends has also been useful to Nubank, as personally identifying information (PII) must be encrypted at rest, something that is easily achieved using Amazon’s PostgreSQL (RDS) with EBS volume encryption for some services, while using DynamoDB to back other, non-PII services."
- andrewchambers 11y agoDatomic seemed like an amazing choice for banks to me.
- fabioyy 11y agothey are a credit card issuer ( mastercard brand ). not a bank.
- dang 11y agoOk, we s/bank/credit card issuer/'d the title.
- fiatjaf 11y agoThis is not a bank and you know it.
- deleted 11y ago[deleted]
- patkai 11y agoDatomic sounds really awsome, I'm wondering which other dbms' can it be related to? (assuming there is nothing new under the sun :) )
- deleted 11y ago[deleted]
- hcarvalhoalves 11y agoI'm not aware of any, although I'm not sure Datomic qualifies as a traditional DBMS. It's more like a querying API + a master process (transactor) backed by a traditional store/DB (Postgres, Dynamo, etc), so you can achieve the same by putting some existing solutions together, but it's implementing a bit more than a DBMS alone.
- alecco 11y agoWhy would you use a slow un-benchmarkable database? There are plenty of good DBs out there for this job.
- andrewchambers 11y agoI don't know any other db that lets you put arbitrary constraints in transactions and run queries as if you were in the past.
- trurl 11y agoLogicBlox.
- nodesocket 11y agoInteresting video and concepts with Datomic, but a few questions. * Why did Nubank decide to attack the Brazil market instead of US? There have been attempts here in the US; Simple (https://www.simple.com https://www.simple.com), Standard Treasury (http://standardtreasury.com/ http://standardtreasury.com/), Final (https://getfinal.com/ https://getfinal.com/), and Coin (https://onlycoin.com/ https://onlycoin.com/). * Isn't reinventing the engineering wheel; in terms of Datomic and a not popular language like Clojure a potential huge distraction to the ultimate goal of building a bank? The problem space is big and hard enough without rolling/maintaining/testing your own database engine and obscure language framework.
- hcarvalhoalves 11y agoI'll try to address: * Perhaps surprising, but Brazil is an interesting market. We have a connected young generation and most industries' current players are bad. * I would argue it's about avoiding reinventing the wheel. Datomic gives you easy scale-out and auditing, and Clojure gives you a flexible, pragmatic functional language with good async/threading primitives running on stablished platforms (JVM and web browsers). I guess going off the beaten path is not necessarily more work if you're taking a shortcut.
- psidium 11y agoBeen using NuBank for about 8 months and I must say, it is the best bank experience I've ever had. They put great effort into every aspect of their business. From the mobile app to the customer experience, it's perfect! (Now that I've promoted you please raise my limit amount - haha jk)