firex-store

firex-store

• If you use this npm, you can reference firestore data, easily

• It is inspired by vuexfire

• node v8.9.4 ~

Installation

npm install --save firex-store

Example

• Nuxt SSR sample

others comming soon

Important!

• Return values or state values bounded to Firestore has docId(documentId in Firestore) property.

• A store module cannot subscribe to more than one 'collection' and 'document'

• If you want to subscribe again after unsubscribing 'collection', set the property of the store you want to subscribe to [] and then subscribe.

Usage

• Subscribe Firestore, using firex-store actions
• Subscribe Firestore, using custom actions
• Unsubscribe Firestore, using firex-store actions
• Unsubscribe Firestore, using custom actions
• Fetch at Once
• Options

Before Start...

• You have to initailize firebase

.....

firebase.initializeApp({
  apiKey: [your firebase api key],
  projectId: [your project id],
  .....
})

export const firestore = firebase.firestore()

1. Subscribe Firestore, using firex-store actions

part1. Add below mutations to namespaced Store

• method: firestoreMutations
• argments:
  • statePropName: you want to bind in the state
  • type: 'collection' or 'document'

Ex. Subscribe collection

export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'comments', type: 'collection' })
  },
  .....
}

part2. Add below actions to namespaced Store

• method: firestoreSubscribeActions

• argments:

  • ref: firebase.firestore.DocumentReference | firebase.firestore.CollectionReference | firebase.firestore.Query
  • actionName?: action property you want to define.
  • options?: see Options

Ex. Subscribe collection

// modules: comment
export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'comments', type: 'collection' })
  },
  actions: {
    ...firestoreSubscribeActions({ ref: firestore.collection('/comments') })
  }
.....
}

part3. Call firex-store actionType to subscribe data

Ex. Subscribe collection

<script>
import { actionTypes } from 'firex-store'

export default {
  name: 'Comments',
  created() {
    this.$store.dispatch(`comment/${actionTypes.collection.SUBSCRIBE}`)
  }
}

</script>

2. Subscribe Firestore, using custom actions

part1. Add below mutations to namespaced Store

• method: firestoreMutations
• argments:
  • statePropName: you want to bind in the state
  • type: 'collection' or 'document'

Ex. Subscribe collection

export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'comments', type: 'collection' })
  },
  .....
}

part2. Add subscribeFirestore in custom-actions

• method: subscribeFirestore
• argments:
  • state: State
  • commit: Commit
  • ref: firebase.firestore.DocumentReference | firebase.firestore.CollectionReference | firebase.firestore.Query
  • options?: see Options

export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'comments', type: 'collection' })
  },
  actions: {
    subscribe: ({ state, commit }) => {
      subscribeFirestore({
        state,
        commit,
        ref: firestore.collection('/comments'),
        options
      })
    }
  }
.....
}

3. Unsubscribe Firestore, using firex-store actions

Ex. Unsubscribe collection

part1. Add firestoreUnsubscribeActions in actions

• method: firestoreUnsubscribeActions

• argments:

  • type: 'document' | 'collection'
  • actionName?: string

export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'comments', type: 'collection' })
  },
  actions: {
    ...firestoreSubscribeActions({ ref: firestore.collection('/comments') }),
    ...firestoreUnsubscribeActions({ type: 'collection' })
  }
.....
}

part2. Call firex-store actionType to unsubscribe data

<script>
import { actionTypes } from 'firex-store'

export default {
  name: 'Comments',
  created() {
    this.$store.dispatch(`comment/${actionTypes.collection.UNSUBSCRIBE}`)
  }
}

</script>

4. Unsubscribe Firestore, using custom actions

• method: unsubscribeFirestore

• argments:

  • type: 'document' | 'collection'
  • state: State

export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'comments', type: 'collection' })
  },
  actions: {
    subscribe: ({ state, commit }) => {
      subscribeFirestore({
        state,
        commit,
        ref: firestore.collection('/comments'),
        options
      })
    },
    unsubscribe: ({ state }) => {
      unsubscribeFirestore({
        state,
        type: 'collection'
      })
    }
  }
.....
}

5. Fetch at Once

• method: findFirestore

• argments:

  • ref: firebase.firestore.DocumentReference | firebase.firestore.CollectionReference | firebase.firestore.Query
  • options?: see Options

• Return null if data not found

EX. Call in Store Action, to fetch collection

export default {
  namespaced: true,
  state: {},
  getters: {},
  mutations: {},
  actions: {
    fetchComments: async ({ commit }) => {
      const ref = firestore.collection('/comments')
      const result = await findFirestore({ ref })
      commit(***, result)
    }
  }
}

Options

• Options

  • mapper:

    • Map to something. State prop bound to Firestore or return values map to something if mapper defined

  • errorHandler

    • If it defined, call it when error occured. But if not, call console.error(error)

  • onCompleted

    • If it defined, call it when completed

  • afterMutationCalled

    • subscribeFirestore and subscribeFirestoreActions only.
    • If it defined, call it when completed
    • This method called after mutation called

Ex.

const mapUser = (data) => ({
  id: data.id
  name: data.name
  .....
})

const errorHandler = (error) => {
  console.error(`[App Name]:  ${error}`)
}

const onCompleted = () => {
  console.log('completed!')
}

const afterMutationCalled = (payload) => {
  /**
   * payload = {
   *   data: { docId: string | null, [key: string]: any },
   *   isLast: boolean,
   *   [key: string]: any
   * }
   * */
  console.log(payload)
}

export default {
  namespaced: true,
  state: {
    comments: [],
    comment: null
  },
  mutations: {
    ...firestoreMutations({ statePropName: 'users', type: 'document' })
  },
  actions: {
    subscribe: ({ state, commit }) => {
      subscribeFirestore({
        state,
        commit,
        ref: firestore.collection('/users').doc('userId'),
        options: {
          mapper: mapUser,
          errorHandler,
          onCompleted,
          afterMutationCalled
        }
      })
    }
  }
  .....
}