Implementing consistent data across Vue.js components by retrieving it from the API through Mixins

Question

Implementing consistent data across Vue.js components by retrieving it from the API through Mixins

I have a Mixins that retrieves data from the sessionStorage, which is then utilized in all components. The API call to fetch the data is located in the Main component (App.vue), where it fetches and stores the data into sessionStorage.

  beforeCreate() {
    if (!sessionStorage.getItem('constants')) {
       axios.get('/data').then(function(response) {
            sessionStorage.setItem('constants',JSON.stringify(response.data.result));
      });
   },

In the Mixins, I am unable to retrieve data directly from the sessionStorage due to the timing of when Mixins are executed compared to the App.vue Component.

I attempted to include the fetch call within the Mixins, but encountered issues with multiple calls being made even though I had implemented conditionals while fetching data from sessionStorage.

import Vue from 'vue';

const Constants = Vue.mixin({
  data() {
    const constant = JSON.parse(sessionStorage.getItem('constants'));
    return {
      get constantsData() {
        return {
          COUNTRY: constant.COUNTRY,
          STATE: constant.STATE,
        };
      },
    };
  },
});
export default Constants;

What is the most effective approach for utilizing Mixins with API data?

javascript vue.js

Answer 1

Answer №1

If you want to retrieve data before creating a component, you can use the following code:

   beforeCreate() {
        if (!sessionStorage.getItem('constants')) {
           axios.get('/data').then(function(response) {
                sessionStorage.setItem('constants',JSON.stringify(response.data.result));
                this.constant = response.data.result;
          });
       }

You can also use mixins to define data that can be shared among components:

    import Vue from 'vue';

    const Constants = Vue.mixin({
      data() {
        return {
          constant: {}
        }
      },
    });

   export default Constants;

Alternatively, you can consider using Vuex for better state management and data sharing between components.

Answer 2

If you want to retrieve data before creating a component, you can use the following code:

   beforeCreate() {
        if (!sessionStorage.getItem('constants')) {
           axios.get('/data').then(function(response) {
                sessionStorage.setItem('constants',JSON.stringify(response.data.result));
                this.constant = response.data.result;
          });
       }

You can also use mixins to define data that can be shared among components:

    import Vue from 'vue';

    const Constants = Vue.mixin({
      data() {
        return {
          constant: {}
        }
      },
    });

   export default Constants;

Alternatively, you can consider using Vuex for better state management and data sharing between components.

Answer 3

Answer №2

After some searching, I discovered the solution by incorporating a method within mixins. This was necessary because I needed to use constants as dropdown values (such as country names or states retrieved from an API). The method should only be called when the dropdown component is initialized.

const Constants = Vue.mixin({
  methods: {
    getConstantData() {
      return JSON.parse(sessionStorage.getItem('constants'));
    },
  },
  data() {
    return {};
  },
});
export default Constants;

Now, the getConstantData method can be utilized in any component to retrieve the data simply by calling getConstantData()

Answer 4

After some searching, I discovered the solution by incorporating a method within mixins. This was necessary because I needed to use constants as dropdown values (such as country names or states retrieved from an API). The method should only be called when the dropdown component is initialized.

const Constants = Vue.mixin({
  methods: {
    getConstantData() {
      return JSON.parse(sessionStorage.getItem('constants'));
    },
  },
  data() {
    return {};
  },
});
export default Constants;

Now, the getConstantData method can be utilized in any component to retrieve the data simply by calling getConstantData()

Implementing consistent data across Vue.js components by retrieving it from the API through Mixins

Answer №1

Answer №2

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