Clojurians Log v2

how do I get beicon to work?

i have a problem with The required namespace "beicon.impl.rxjs-operators" is not available

I have added rxjs to package.json

problem solved, in node-repl it doesn't work, in browser-repl there is no problem

still something doesn't work ;(

The required JS dependency "rxjs/Rx" is not available, it was required by "beicon/impl/rxjs.cljs"

from what I see and read, the library is set up to work with figwheel, not shadow-cljs

why does ptk/add-watch not call the function added with add-watch to ptk/store?

http://ix.io/2Rd9

hi @huxley, we are using beicon at https://github.com/penpot/penpot and it works correctly with shadow-cljs, but it needs some tweaks in order to correctly work

Yes, I know, I found 😉

https://github.com/penpot/penpot/tree/develop/frontend/vendor/beicon/impl

oh nice,

I have already added the files from the vendor directory

oh yeah, that's files

about potok, unfortunatelly the documentation is outdated; as I don't expected that the library is heavy used outside from my own projects 😛

because is not very popular way to handle state, and the the people used to have some fear to RX

regarding ptk/add-watch, I have already found that (rx/delay) messes everything up

I'm tired of re-frame & reagent and looking for something new

hehe nice, probably penpot is a good source for knowing how potok+beicon works; the badside is that the project is pretty big that does not help

i'll try to have some time this week for update potok documentation

I'm maintaining >5 years old ecommerce that uses rum fork rum and datascript fork. Compared to it penpot is lovely, simple, organized and super readable 😉

Anyway, don't worry about the documentation, it's all in the code, which is well described.

oh, thanks! 😊

btw, you are probably the best example of a person suffering from a lisp course 😉 you produce an incredible amount of libraries and you always use your own solutions

and that's great, because less able people like me have it easier

xD

hehehe, i'm just curious and try to find a simple solutions for my own problems and challenges; and spend a good amount of time on research on how to improve the currently established solutions

the potok, rumext and okulary is probably a portion of result of this; potok right now is probably 5 years old and it has aged pretty well; we as a team developing penpot did't found real obstacles with the current architecture of state management of the application... I didn't have the same experience with redux, flow and other similar aproaches form the JS world

potok only suffers from the learning curve, because it requires knowing rx pretty well for more advanced stuff

I'm just trying to figure out how to display the rx/stream data using rum

I haven't seen rx/to-atom used anywhere in the penpot, and that's the only thing I can think of

@huxley this is something related to documentation 😞 ; look at this line https://github.com/penpot/penpot/blob/develop/frontend/src/app/main/store.cljs#L26

the state is already an atom

so you can use it from rum as-is

the idea behind this, is that all changes are async, but state should be accessed using synchronous primitives

I got what you're talking about, it's easy

but I've got another idea I can't make happen

I know I can use l/derived too, but that's not what I have in mind yet.

I'll try to explain in my limited English

You definitely know datascript and maybe you know posh

yeah, I know it but never used it

The posh listens for changes in the db, and checks if these changes match the query

I wanted to make a stream where I have the difference between old-db and new-db

I've already got it

I also have functions that listen for these differences and based on them return something

and I'd like to use this "something" with rum

probably the easiest way to it is materialize the result of a stream into an atom

atom is a good synchronous primitive for storing the result of a curret result of some process

Great!

if you have a stream of "something" (results)

just use to-atom for materialize it to an atom

you also have the option to use BehaviorSubject of RX

is analogous to atom

but need some adaptations in order to make it work with rum

I tried to do a deref a subject

but it looks like the data needs to be pulled out somehow differently

For rumext, we have this hook (react hook)

is analogous to rum and rumext deref

awesome

for subjects

this is it!

I think I have all the pieces of the puzzle to replace the current stack

thank you, you helped me a lot

np