Wild Posts - Answer Overflow

Wild

Explore posts from servers

•Created by Wild on 9/16/2024 in #support

Create one global store with multiple createResource

Hello, I am a beginner programmer developing a small local app with Tauri and SolidStart. In the past, I have already worked on a personal website with Nuxt/Vue/Pinia. The data being exclusively stored on a local sqlite database, I am trying to load all the data from the start of the program execution, and intend to make it available to all components from a store. How do I initialize my store within context with createResource ? my context is undefined I've made sure the data fetching part works. I tried to wrap the AppContext.Provider with Suspense, my guess being the async is messing things up here. Thank you

export type AppContextType = {
  store: Store<any>;
  setStore: SetStoreFunction<any>;
};

const AppContext = createContext<AppContextType>();

async function fetchDbData<T>(query: string) {
  const db = await Database.load("sqlite:mydatabase.db");
  return await db.select<T[]>(query);
}

const categories = createResource(async () =>
  fetchDbData<Category>("SELECT * FROM category;"),
)[0]();

const items = createResource(async () =>
  fetchDbData<Item>("SELECT * FROM item;"),
)[0]();

export const AppProvider: Component<any> = (props: any) => {
  // function createDeepSignal<T>(value: T): Signal<T> {
  //   const [store, setStore] = createStore({
  //     value,
  //   });
  //   return [
  //     () => store.value,
  //     (v: T) => {
  //       const unwrapped = unwrap(store.value);
  //       typeof v === "function" && (v = v(unwrapped));
  //       setStore("value", reconcile(v));
  //       return store.value;
  //     },
  //   ] as Signal<T>;
  // }

  const [store, setStore] = createStore(
    {
      categories,
      items
    });
  return (
    <AppContext.Provider value={{ store, setStore }}>
      {props.children}
    </AppContext.Provider>
  );
};

export const useStore = () => {
  const context = useContext(AppContext);
  if (!context) throw new Error("AppContext is not valid");
  return context;
};

export type AppContextType = {
  store: Store<any>;
  setStore: SetStoreFunction<any>;
};

const AppContext = createContext<AppContextType>();

async function fetchDbData<T>(query: string) {
  const db = await Database.load("sqlite:mydatabase.db");
  return await db.select<T[]>(query);
}

const categories = createResource(async () =>
  fetchDbData<Category>("SELECT * FROM category;"),
)[0]();

const items = createResource(async () =>
  fetchDbData<Item>("SELECT * FROM item;"),
)[0]();

export const AppProvider: Component<any> = (props: any) => {
  // function createDeepSignal<T>(value: T): Signal<T> {
  //   const [store, setStore] = createStore({
  //     value,
  //   });
  //   return [
  //     () => store.value,
  //     (v: T) => {
  //       const unwrapped = unwrap(store.value);
  //       typeof v === "function" && (v = v(unwrapped));
  //       setStore("value", reconcile(v));
  //       return store.value;
  //     },
  //   ] as Signal<T>;
  // }

  const [store, setStore] = createStore(
    {
      categories,
      items
    });
  return (
    <AppContext.Provider value={{ store, setStore }}>
      {props.children}
    </AppContext.Provider>
  );
};

export const useStore = () => {
  const context = useContext(AppContext);
  if (!context) throw new Error("AppContext is not valid");
  return context;
};

3 replies

NNuxt

•Created by Wild on 5/3/2024 in #❓・help

useASyncData & watch issue

Hello friends, I've been having a hard time using watch. I've finally found a suitable ref for watch, but the refresh is too late. My store update but what is displayed is one step behind. If i change the lang from fr to en, it'll show fr, and from en to es, it'll show es. What am I missing ? If I use a plugin with

nuxtApp.hook('i18n:localeSwitched',

nuxtApp.hook('i18n:localeSwitched',

and manually call refresh, it works as I would like it to. Thanks for your time !

import { JobActionsLocal } from "./proto/job_action";
const key = 'job_action'

export const useJobActionStore = defineStore(key, () => {
  function mapper(data: JobAction[]) {
    return new Map(
      data.map((raw) => {
        return [raw.uid, raw]
      })
    )
  }

  const { locale } = useI18n()

  const {data: actions, pending, error, refresh: clear_cache} = useAsyncData(
    key,
    () => ifetch(key, `jobs/actions`, JobActionsLocal, mapper),
    {
      server: false,
      lazy: true,
      watch: [locale],
      deep: false
    }
  )

  return {actions}
})

if (import.meta.hot) {
  import.meta.hot.accept(acceptHMRUpdate(useJobStore, import.meta.hot))
}

import { JobActionsLocal } from "./proto/job_action";
const key = 'job_action'

export const useJobActionStore = defineStore(key, () => {
  function mapper(data: JobAction[]) {
    return new Map(
      data.map((raw) => {
        return [raw.uid, raw]
      })
    )
  }

  const { locale } = useI18n()

  const {data: actions, pending, error, refresh: clear_cache} = useAsyncData(
    key,
    () => ifetch(key, `jobs/actions`, JobActionsLocal, mapper),
    {
      server: false,
      lazy: true,
      watch: [locale],
      deep: false
    }
  )

  return {actions}
})

if (import.meta.hot) {
  import.meta.hot.accept(acceptHMRUpdate(useJobStore, import.meta.hot))
}

2 replies

NNuxt

•Created by Wild on 5/1/2024 in #❓・help

Is it possible to initialize store state with async function ?

Hello friends, I am trying to set up my store from indexedDb. I've seen an example with useLocalStorage from vueUse, but how can I make it works with custom function ? Thank for the help

8 replies

NNuxt

•Created by Wild on 4/27/2024 in #❓・help

How to share an indexedDb

Hello friends, pretty new to nuxt and js/ts, so maybe a trivial question there, forgive me. How do I instantiate an indexedb and access it through all of my nuxt app ? Many thanks

export default defineNuxtPlugin((nuxtApp) => {
  nuxtApp.hooks.hookOnce('app:suspense:resolve', () => {
    isHydrated.value = true

    const db_open_request = window.indexedDB.open("app");
    db_open_request.onerror = (event) => {
      let indexedDb = false
    };
    db_open_request.onupgradeneeded = (event) => {
      const db = event.target!.result
      const objectStore = db.createObjectStore("data");
    }
    db_open_request.onsuccess = (event) => {
      let ddb = event.target!.result // how do I share this
      let indexedDb = true // and maybe this too

      ddb.onerror = (event: Event) => {
        console.error(`Database error: ${event.target!.errorCode}`);
      };
    };

  })
})

export default defineNuxtPlugin((nuxtApp) => {
  nuxtApp.hooks.hookOnce('app:suspense:resolve', () => {
    isHydrated.value = true

    const db_open_request = window.indexedDB.open("app");
    db_open_request.onerror = (event) => {
      let indexedDb = false
    };
    db_open_request.onupgradeneeded = (event) => {
      const db = event.target!.result
      const objectStore = db.createObjectStore("data");
    }
    db_open_request.onsuccess = (event) => {
      let ddb = event.target!.result // how do I share this
      let indexedDb = true // and maybe this too

      ddb.onerror = (event: Event) => {
        console.error(`Database error: ${event.target!.errorCode}`);
      };
    };

  })
})

53 replies

NNuxt

•Created by Wild on 4/24/2024 in #❓・help

useFetch triggers on ssr while server: false ?

I put console.log in my useFetch, and I can see that getCachedData get triggered twice while on ssr. Why is that and how can i prevent this ? Thanks

// /stores/items.ts
export const useItemStore = defineStore('items', () => {
  const key = 'items'
  const lang = computed(() => {return useCookieLocale().value})
  const {data: items, refresh} = useFetch(
    `https://api.profus.net/datacenter/dofus2/items`,
    {
      method: 'GET',
      params: {
        lang: lang
      },
      key: key,
      server: false,
      lazy: true,
      immediate: false,
      deep: false,
      transform(raw_items:Item[]) {
        return new Map<number, Item>(
          raw_items.map(raw_item => {
            return [raw_item.id, raw_item];
          }),)
      },
      getCachedData(key, nuxtapp) {
        if (nuxtapp.static.data[key] !== undefined) {
          console.log({step: 'static'})
          return nuxtapp.static.data[key]
        } 
        if (process.client) {
          if (localStorage.hasOwnProperty(key)) {
          const arr_buffer = JSON.parse(localStorage.getItem(key))
          let map_buffer = new Map<number, Item>(
            arr_buffer.map(raw_item => {
              return [raw_item.id, raw_item];
            })
          )
          console.log({step: 'localstorage'})
          nuxtapp.static.data[key] = map_buffer
          return map_buffer
          }
          else {
            return null
          }
        }
        console.log({step: 'not cached'})
        return {}
      },
      onResponse({ request, response, options }) {
        console.log({step: 'resp'})
        localStorage.setItem('items', JSON.stringify(response._data))
      },
    },
  )

  async function clear_cache() {
    await refresh()
  }

  onHydrated(async () => {
    const nuxtApp = useNuxtApp()
    if (!localStorage.hasOwnProperty(key) || items.value == null) {
        await refresh()
    }
  })

  return {items, clear_cache}
})

}

// /stores/items.ts
export const useItemStore = defineStore('items', () => {
  const key = 'items'
  const lang = computed(() => {return useCookieLocale().value})
  const {data: items, refresh} = useFetch(
    `https://api.profus.net/datacenter/dofus2/items`,
    {
      method: 'GET',
      params: {
        lang: lang
      },
      key: key,
      server: false,
      lazy: true,
      immediate: false,
      deep: false,
      transform(raw_items:Item[]) {
        return new Map<number, Item>(
          raw_items.map(raw_item => {
            return [raw_item.id, raw_item];
          }),)
      },
      getCachedData(key, nuxtapp) {
        if (nuxtapp.static.data[key] !== undefined) {
          console.log({step: 'static'})
          return nuxtapp.static.data[key]
        } 
        if (process.client) {
          if (localStorage.hasOwnProperty(key)) {
          const arr_buffer = JSON.parse(localStorage.getItem(key))
          let map_buffer = new Map<number, Item>(
            arr_buffer.map(raw_item => {
              return [raw_item.id, raw_item];
            })
          )
          console.log({step: 'localstorage'})
          nuxtapp.static.data[key] = map_buffer
          return map_buffer
          }
          else {
            return null
          }
        }
        console.log({step: 'not cached'})
        return {}
      },
      onResponse({ request, response, options }) {
        console.log({step: 'resp'})
        localStorage.setItem('items', JSON.stringify(response._data))
      },
    },
  )

  async function clear_cache() {
    await refresh()
  }

  onHydrated(async () => {
    const nuxtApp = useNuxtApp()
    if (!localStorage.hasOwnProperty(key) || items.value == null) {
        await refresh()
    }
  })

  return {items, clear_cache}
})

}

3 replies

NNuxt

•Created by Wild on 4/23/2024 in #❓・help

Need some help about useFetch usage

Hello friends, anyone knows why a useFetch would trigger once on the client although the getCachedData return data from localstorage ? I got getCachedData into getCachedData into onReponse into Transform. Some code since it might help :

export const useItemStore = defineStore('items', () => {
  const lang = computed(() => {return useCookieLocale().value})
  const {data: items, refresh} = useFetch(
    `some url`,
    {
      method: 'GET',
      params: {
        lang: lang,
        limit: 25000
      },
      headers: { 'Content-Type': 'application/json' },
      key: "items",
      server: false,
      lazy: true,
      immediate: false,
      deep: false,
      transform(raw_items:Item[]) {
        console.log({step: 'transform',  data: raw_items})
        return new Map(
          raw_items.map(raw_item => {
            return [raw_item.id, raw_item];
          }),)
      },
      getCachedData(key) {
        if (localStorage.hasOwnProperty(key)) {
          const buffer = JSON.parse(localStorage.getItem(key))
          console.log({step: 'buffer',  data: buffer})
          return buffer
        }
      },
      onResponse({ request, response, options }) {
        console.log({step: 'resp',  data: response._data})
        localStorage.setItem('items', JSON.stringify(response._data))
        return response._data
      },
    },
  )

  async function clear_cache() {
    localStorage.removeItem('items')
    await refresh()
  }

  onHydrated(async () => {
    await refresh();
  })

  return {items, clear_cache}
})

if (import.meta.hot) {
  import.meta.hot.accept(acceptHMRUpdate(useItemStore, import.meta.hot))
}

export const useItemStore = defineStore('items', () => {
  const lang = computed(() => {return useCookieLocale().value})
  const {data: items, refresh} = useFetch(
    `some url`,
    {
      method: 'GET',
      params: {
        lang: lang,
        limit: 25000
      },
      headers: { 'Content-Type': 'application/json' },
      key: "items",
      server: false,
      lazy: true,
      immediate: false,
      deep: false,
      transform(raw_items:Item[]) {
        console.log({step: 'transform',  data: raw_items})
        return new Map(
          raw_items.map(raw_item => {
            return [raw_item.id, raw_item];
          }),)
      },
      getCachedData(key) {
        if (localStorage.hasOwnProperty(key)) {
          const buffer = JSON.parse(localStorage.getItem(key))
          console.log({step: 'buffer',  data: buffer})
          return buffer
        }
      },
      onResponse({ request, response, options }) {
        console.log({step: 'resp',  data: response._data})
        localStorage.setItem('items', JSON.stringify(response._data))
        return response._data
      },
    },
  )

  async function clear_cache() {
    localStorage.removeItem('items')
    await refresh()
  }

  onHydrated(async () => {
    await refresh();
  })

  return {items, clear_cache}
})

if (import.meta.hot) {
  import.meta.hot.accept(acceptHMRUpdate(useItemStore, import.meta.hot))
}

2 replies

NNuxt

•Created by Wild on 4/20/2024 in #❓・help

Data Fetching, Store and LocalStorage

Hello friends, I am trying to understand the store lifecycle, but I have yet to find a good article / document on the topic. I understand that there is data fetching from the server and from the client. I was originally planning to set up a store and initializing some state from the server, for website often-updated data with usefetch server true, and some persitent data with a mix of usefetch server false and localstorage. My issue is that I cannot control when the state is set up, and so localstorage and client side state initialization fails unless I use some kind of onMounted, getCurrentInstance and process.server shenanigans. I want control when the state is set up, because at the moment I just get an empty {} : the state try to initialize once, fails which is normal cause SSR. Should I just trigger some actions from the client ? This seems like a lot of boilerplate. Any relevant resource or document ? Is there a way to control when the store is set up ? How would you approach this kind of thing ? I was trying to keep things simple because all that's needed is a nicely timed localstorage getitem and setitem, but maybe I should look into some persisted state plugin. Thank you very much for your help, insight and time

7 replies

Gaming

Programming