Nuxt Example for modularised Vuex Store with multiple nuxtServer Init

store_index.js

export const actions = {
  async nuxtServerInit ({ dispatch }, { app }) {
    console.log('calling init methods')
    await dispatch('providers/nuxtServerInit', { app })
    await dispatch('products/nuxtServerInit', { app })
  }
}

store_products.js

export const state = () => ({
  products: []
})

export const getters = {
  getProduct (state, id) {
    if (state.products) {
      return state.products.find( p => p.id == id);
    }
    return undefined;
  },
  isEmpty (state){
    return !state.products || state.products.length == 0
  }
}

export const mutations = {
  setProducts(state, products) {
    state.products = products
  }
}

export const actions = {
  async nuxtServerInit ({ commit }, { app }) {
    console.log('calling products init method')
    let { data } = await app.$axios.$get('https://api.myjson.com/bins/12u91y')
    commit('setProducts', data.data)
  }
}

store_providers.js

export const state = () => ({
  providers: []
})

export const getters = {
  getProvider (state, id) {
    if (state.providers) {
      return state.providers.find( p => p.id == id);
    }
    return undefined;
  },
  isEmpty (state){
    return !state.providers || state.providers.length == 0
  }
}

export const mutations = {
  setProviders(state, providers) {
    state.providers = providers
  }
}

export const actions = {
  async nuxtServerInit ({ commit }, { app }) {
    console.log('calling providers init method')
    let { data } = await app.$axios.$get('https://api.myjson.com/bins/xy7v2')
    commit('setProviders', data.data)
  }
}