sample1.ts

export const useExampleStore = defineStore('expamle', {
  state: {/*...*/}
  actions: {
    async setup() {
      // ...
      //🌟 Sync Pinia's state and Firestore document
      onSnapshot(docRef, (ds) => {
        if (ds.exists()) {
          this.$patch({ docData: ds.data() })
        }
      })
    }
  }
})