>From what you've described, it seems as though it would be easy to build the server side of this application in Clojure.
I found Clojure to be very easy to pick up. I won't say that the first few applications that I wrote in Clojure were great Clojure code, but it was easy for me to move from Java to Clojure. Ring is a good start. You might also want to check into some libraries built on top of Ring such as https://github.com/weavejester/compojure and https://github.com/metosin/compojure-api. We've found compojure-api to be extremely handy. I haven't played with any AWS clients in Clojure, so I'm afraid I can't answer that question. Clojure does integrate well with relational databases in general. We're using PostgreSQL, but any database that has a JDBC driver available should be easy to use. You may want to check into some of the Clojure libraries that provide DSLs for generating SQL statements. I've tried http://sqlkorma.com/ and https://github.com/jkk/honeysql, and I've had fairly good luck with both of them. Dennis On Monday, January 9, 2017 at 4:06:30 PM UTC-7, (hash-map :new "to clojure" :need "assistance") wrote: > > Hi all! > > So, I'm new to Clojure! I'm coming in from a Java background and am > currently working on a project that has prompted me to have a look at > whether Clojure would be useful. > I have started by going through the "Brave Clojure" website and working > through the exercises and what I've seen has at many times just made me > smile at the (at least so far) intuitiveness, simplicity and power of the > language. My use case is this: > > A real time (sealed bid) auctioning system. We have a maximum number of > bids (example 100) that's set by the owner of the product. Our clients then > bid on the product. Once a bid is made, it's committed to a database and > the counter increments. The next bid is processed, and so on. Once the > maximum number of bids is reached, bidding stops. This auctioning system is > for a mobile application however the main code for the real time system > sits on a web server. The mobile app is a very thin client so simply makes > a call to the app server via an API which then processes that request (and > returns the result). > > Requests are processed in order - so we're following a "first come first > serve" approach. If at any time a request is due to be processed and the > counter hits 100, all requests should gracefully "fail" and be blocked from > bidding. Now this is obviously possible in Java, albeit with a lot more > code and thinking about the different ways to make everything thread-safe, > etc. This is a completely new project so there's no restriction on > languages to be used, etc. PS: We're all Java developers. > > I was really attracted to Clojure because of a) the JVM b) the fact that > it seems to be able to handle concurrency effortlessly c) our API needs to > scale and so we want to ensure that we can handle the 100K+ connections > easily when the project reaches that stage. Obviously this is more to do > with the hardware, but the way we build the API is a definite factor. > Finally, there seems to be less verbose codebases on Clojure and it might > help to keep our overall codebase light and readable! > > My questions therefore are these: > > With the time we have (around 1 month for this stage), is this something > we can easily build in Clojure? > Is the movement from Java to Clojure easy for someone completely new to > Clojure? > Are the libraries that we might use for this - I had a look at Ring > briefly robust for our use case? > Does Clojure have good support for using AWS for example? (You can call > Java from Clojure so I guess this wouldn't really be an issue.) > Does it interface well with MySQL? > > I'd be very grateful if someone could point me in the right direction on > this - like I said, really really like what I'm seeing of Clojure but just > want to be sure from the community before I recommend this as an action to > take! > > (hash-map :many "thanks") > > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
