Dynamical loading of env variables in nuxt.js

index.js

export const state = () => ({
  env: {}
})

export const mutations = {
  setEnv (state, env) {
    state.env = env
  }
}

export const actions = {
  nuxtServerInit ({ commit }) {
    if (process.server) {
      commit('setEnv', {
        VAR1: process.env.ENV_VARIABLE_ONE,
        VAR2: process.env.ENV_VARIABLE_TWO || 'default value'
      })
    }
  }
}