does anyone have a gist or know of any docs for building a hoplon app for production? maybe @thedavidmeister

i've tried digging thru the examples, but they are all broken, https://github.com/hoplon/demos/tree/master/deploy-uberwar

another: https://github.com/hoplon/demos/tree/master/demos-homepage

ooh, this looks promising https://github.com/tailrecursion/hoplon-castra-template

for production i always deploy the frontend to s3/cdn

and communicate to the backend via CORS

so the hoplon part is compiled and uploaded to s3 and that's it for production

that would work, i'm stuck at the first step though - I can't get static files to build

or maybe i'm confused as to what prerender does

because i get index.html.js

and then index.html has a script tag that pulls it in

which is still client side rendering

prerendering is for search engine crawlers and for things like splash screens while the js is loading

if you use prerendering you should see your application content in the body

i thought it would execute the js to generate html

yes it should do that

do you have phantomjs installed?

looks like it

it will print a notice that it's skipping the prerendering step if you don't

$ phantomjs phantomjs>

yea - didn't get any messages, the task just finishes

and you have the prerender task after the cljs task?

like (boot (hoplon) (cljs) (prerender))

(deftask prod [] (comp (sass) (hoplon) (cljs :optimizations :advanced) (prerender)))

yeah that should work

will that write to disk or do i need the target task?

you need the target task too

yeah

at the very end of the pipeline of course

ah ok, that's missing in some examples so i was confused

you don't ned it if you're using a local server for instance

it can slow things down so it's not added by default

are the files written to a temp dir without the target task?

or just in memory?

they're all real files, in temp dirs

ok cool

boot has efficient filesystem patching/diffing stuff in it

because the files in the fileset are immutable

and content-addressed

the files you interact with are actually just hardlinks to the content-addressed, immutable blob storage

interesting

well , thanks for the help i'll keep digging. i'll throw together a wiki page when i figure out the full deploy - i'll need the server side running as well

i'm really just looking for a gist of some shell commands to run, figured this would be a common thing that someone has gone thru before

@danvingo: what kinda of shell commands are you looking to run?

i just mean a walkthru of how to build for a prod and run

on a normal unix-like environment

there just aren't any examples to reference that have all the steps

I just think it's odd for all the effort and documentation that exists for hoplon that there isn't any mention of how to deploy for production

@danvingo: i think it's kinda hard to have exact examples since you can do pretty much whatever you want with boot as a build tool, we use it for regular OS related tasks too

Also hoplon builds regular web files, you can serve them however you want, if you do prerendering then you just have static things

for hoplon specifically - it's a web application framework so some common examples would be good

Agreed but I think that is more "target platform" dependent

i'm just saying from an ecosystem point of view my experience trying to get a simple app deployed has been terrible

and i would not choose to use this again just because of that

Really? That's interesting iv found hoplon to be the easiest to build with from my experience thanks to boot

@keithsparkjoy: welcome :)

even just a page saying, hoplon uses boot, you can do a lot with boot so you should first make sure that you are comfortable with boot before continuing

i heard that github has fixed the gh-pages situation

so you can now make a folder that github pages will serve, you don't need to make the gh-pages branch anymore

so maybe that could be the example we show

compile hoplon to static files that go in the docs dir, push to github, and you've deployed to produciton

@danvingo: where are you trying to run your app? Documentation is a thing that's been expanding the last year we could have a wiki page with how to build for different env

i'm making some progress from this template

https://github.com/tailrecursion/hoplon-castra-template

got the war deployed with: heroku deploy:war target/project.war --app floating-island-79453

@danvingo: heroku supports docker images, there are docker images for boot out in the wild too

perhaps add a section to the getting started wiki page? https://github.com/hoplon/hoplon/wiki/Get-Started

@flyboarder i don't have a preference, just want to : 1. build static assets 2. start clojure server

Your app relies on castra yea? So you need a backend server also?

@micha - yea, i don't mind updating with the heroku steps when i get it workikng

yep - using castra

@micha I think the challenge is how do I host my app, this is something I also had to wrap my head around since I came to hoplon without Java knowledge

@flyboarder: what platform issues have you ran into? I hit an sqlite minor version incompatibility but only because osx had a slightly older version than my prod, so that was not strictly osx specific other than that if im shell scripting, then some of the utils have different options, eg. date, ls, du, test maybe but its sooo infrequent it doesn't really matter

@flyboarder: regarding resolution, just use the same aspect ratio when mirroring and then it won't be so crap!

@flyboarder: also on newer OS X versions you can put 2 full screen apps next to each other and specify the split ratio between them (not from keyboard though...)

ahhh, the heroku deploy worked! phew

@alandipert @danvingo: there is also brew install jetty-runner (i havent tried it yet though)

i'll update the getting started guide with a section on deploying to heroku

@alandipert @micha: sounds like you would have liked acme back then 🙂 http://plan9.bell-labs.com/sys/doc/acme/acme.html

@jamieorc @flyboarder im also using (boot-)environ still but im considering https://www.dotkam.com/tag/cprop/ (which was missing from the "Real World Clojure" article)

@danvingo: are you using heroku build packs?

@onetom Thanks. How do I get hoplon/ui running. boot dev throws errors that it can’t find the lib when I include it in the project.

@micha: i've seen those strange castra errors too. i think it happens when you cancel an xhr request (because boot-reload reloaded the page for example)

just using https://github.com/heroku/heroku-cli-deploy

the css static files are 404'ing though so will have to keep playing with it

@jamieorc

git clone [email protected]:hoplon/ui
cd ui
boot build-jar

@flyboarder @danvingo the basic Hoplon deploy is simple - but it gets more difficult with Castra - maybe a docker image for Hoplon with Castra and Boot for good measure would be nice - a one stop image

@flyboarder: thanks :)

@tbrooke yeah i think when you start using hoplon you really want to use castra without knowing all the difficulties of hosting java servers, i think if we had a Serving Hoplon and Serving Hoplon with Castra in the wiki that would help guide those coming to hoplon, especially without java knowledge

@tbrooke @danvingo https://github.com/hoplon/hoplon/wiki/Serving-Hoplon Feel free to add….

Any one else looked at https://www.netlify.com/ they are pretty good for static sites, Hoplon without castra, and they support build tools including leiningen - I mentioned boot to them and they said they were adding it but I’m not sure if they did

@tbrooke: interesting, i’ve heard good things about them before, but looks like they’ve come a long way since they were just a cdn. let me know what you find out, will do the same.

@tbrooke are you using http/2 with them?

@flyboarder No consciously but they say it is enabled for all https: https://www.netlify.com/blog/2015/10/20/netlify-news-no-6

Thanks @flyboarder will update with what i've found

@danvingo if we can solve your issues with some documentation i think it’s worth it for everyone 🙂

agreed 🙂

Sometimes I’m getting a "core.cljs:120Uncaught ReferenceError: jQuery is not defined” error. This happens when I call a function directly in the rpc cljs file.

@jamieorc I would imagine your cljs file is loading before jquery then, try adding cljsjs.jquery to the namespace in your :require

cheers

@flyboarder that did it. Cheers

np 🙂

@flyboarder I keep getting "#error {:message Server error., :data {:castra.core/exception true}}” Is there a way to see what the exception is?

Should be showing up in your console no?

no error there. I’m trying to send a list back from mongodb using monger. I have a similar, though slightly simpler app that works. I’ve been trouble-shooting this a while and am stumped. I can return a hard-coded list no problem. When I output the list to console, it’s what I expect. Castra blows up on the list. Yet something very similar in another app is fine with Monger.

I dont use castra anymore, but I remember running into similar issues

@micha do you have a suggestion for castra exceptions?

I remember you solved this for me before too

@flyboarder what’re you using rather than castra?

🙏 No-Backend

@jamieorc I kinda hate the idea of a backend for my web apps, also many databases have little to no security because they assume opperation on a trusted network. Thats like saying not to put a lock on your house because you have a fence.

😄

I’m experimenting with integrating hoplon/castra with a large existing backend, so I’m rather stuck with it

the exception stack trace is in the exception object

(.-serverStack ex) will be how you get to it

@jamieorc

an example from one of our applications: https://gist.github.com/micha/0a8ac8f1f21a32266a0a93703df9144f#file-rpc-cljs-hl-L64-L67

group- and error are macros from the adzerk/cljs-console library

@micha thanks, I’ll have a look

Oof. I thought it might be something like this: "Caused by: java.lang.RuntimeException: java.lang.Exception: Not supported: class org.bson.types.ObjectId at com.cognitect.transit.impl.WriterFactory$1.write (WriterFactory.java:129)"

thanks again, @micha

np!

now I know why the other app worked. I was retrieving objects with Strings for ids rather than ObjectIds for ids.