js-data/js-data

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Grégory Copin

@Gregcop1

Ok, no problem. I hope you'll find the best solution for your project

Sisir

@prionkor

did you face this issue? When I get data using findAll() it return data from REST api but on the next query because previous query is cashed it doesn't send api request but doesn’t return the data from cache either. it returns empty array

Sisir

@prionkor

How do I get non resource data. For example I have homepage of the application where I need a bunch of data like uses stat, total numbers of blog posts etc.. those information aren't like resources (articles, users etc). How do I make those enpoints? For example /dashboard-data

Grégory Copin

@Gregcop1

Do you need those data to be stored on cache ?

do you really need js-data for that ?

Sisir

@prionkor

my main goal was to find a data layer that manages my data from server, caches appropriate

to reduce redundant request

the json schema in js data is a good feature

Grégory Copin

@Gregcop1

that's why at first I was asking you if all your endpoint are restFull

In my apps, I manage everything with Resources (which extend an AbstractResource)

those resources are instanciate with some options (use cache, cache lifetime, etc...) and instanciate js-data resource when needed of make direct GET call via axios for non-restFul request

Sisir

@prionkor

I am creating backend api as I move forward so if anything needs to be created I am okay with that

Sisir

@prionkor

my immediate problem is to solve the empty data return form js-data. for example store.findAll('article', {_limit: 50, _offset:0}) calls server first time but on second time it doesn't call the server and returns empty array []

Grégory Copin

@Gregcop1

Mmm I never had this problem

Have you checked your indexeddb/localstorage (dunno where you store your cache) to watch if data are stored after the first call ?

Sisir

@prionkor

not using any kind of storage. Its storing in the variable (RAM)

Grégory Copin

@Gregcop1

ok, so you should be able to watch store state in the console of your browser

you have some example in the doc of jsdata

Sisir

@prionkor

let me check

got it..

I will get back to you soon

Grégory Copin

@Gregcop1

Sisir

@prionkor

oh okay, so here is the problem I was facing. When i do store.findAll() it always calls server. For second time it doesn't return from store..

Sisir

@prionkor

this is what findAll() suppose to do. I guess my problem is to switch between findAll() & getAll()

Grégory Copin

@Gregcop1

it's supposed to do the job himself

if cache is activated, js-data checks in its memory and if the cache has expired it ask to adapter

Sisir

@prionkor

const dataStore = new DataStore({
    useFilter: true,
    //maxAge: 60 * 60 * 1000, // one hour max age
});

this is how I am initializing datastore

Grégory Copin

@Gregcop1

can you try a maxAge to 1ms

just for test

I'm sorry, I don't use js-data everyday. When it's well configured for a project you don't have do return to it anymore :)

Grégory Copin

@Gregcop1

can you try the option "force"
store.findAll('post', {}, { force: true });

it's supposed to bypass cache

http://www.js-data.io/docs/working-with-the-datastore

Sisir

@prionkor

note, I am not getting the empty array

it always calls server and returns data

sorry about the confusion it does..

trying the force now

So, Here is the problem (no confusion now >_< )

Sisir

@prionkor

when I have empty query it doesn't have problem.. ( calls server frist time, loads from cache next time)

when I have query then it have the problem..

store.findAll('post', {}, { force: true });  // without query no problem
store.findAll('post', {parent:null, _limit: 50, _offset: 1});  // without query problem, empty array when loads from cache.

Sisir

@prionkor

Found a workaround..

First I try the sync methods like store.filter() to get data. If data is empty ( meaning never queried before) then call findAll()

Alex Alexandrov

@rapidexact

Hi all.

I have a question.
If i invoke find, or findAll methods from few places at same time, then i will get few requests to server, or one request ?

Olson3R

@Olson3R

@rapidexact My thoughts are... Due to the nature of JavaScript/Node, the requests will not happen at the same time since it is single threaded. If the requests are similar enough, the first request might get sent and the response stored in the data store. Subsequent requests might be satisfied with the data in the cache and not require external api calls.

Luis Vargas

@luisvt

Hello

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