Let’s talk about where the interface should be written in vue

Vue is a very popular JavaScript framework whose main function is for building single-page web applications. In Vue applications, we often need to obtain and update data through interfaces. So, in Vue, where should we write the interface?

Generally speaking, in Vue projects, we put interface requests into components or Vuex Store. The specific choice depends on the complexity and needs of your application.

Write interfaces in components

In Vue, components are self-contained modules that can contain various data and processing logic. Therefore, writing interface requests in components is a common way. This method is very suitable for small, relatively simple applications, because each component can independently request the data it needs.

Generally, we call the interface in the mounted method of the component. In this method, the component has been mounted into the DOM and its data and computed properties are ready. This is the perfect time for us to get data from the server.

For example, here is a Vue component that requests data from the server through the axios library:

<template>
  <div>
    <h2>{{ title }}</h2>
    <ul>
      <li v-for="task in tasks" :key="task.id">{{ task.name }}</li>
    </ul>
  </div>
</template>

<script>
import axios from 'axios';

export default {
  data() {
    return {
      title: '我的任务列表',
      tasks: [],
    };
  },
  mounted() {
    axios.get('/api/tasks').then((response) => {
      this.tasks = response.data;
    });
  },
};
</script>

In this example, we request data from the server through the axios library / The api/tasks interface sends a GET request, and after the request is successful, the response data is assigned to the tasks attribute of the component. Note that in this example, the interface request is only for the component, not the entire application.

Write interface in Vuex Store

In Vue, Vuex is a state management library used to extract data from components to a central location. If your application becomes more complex, you may need to write interface requests in the Vuex Store to share data throughout the application.

In Vuex, we can define some operations (actions) to trigger interface requests. These operations are typically used for API requests and can store data in state in the Vuex Store.

For example, here is a sample operation that requests data from the server via the Axios library and then stores that data in the state of the Vuex Store:

import axios from 'axios';

export default {
  actions: {
    fetchTasks({ commit }) {
      axios.get('/api/tasks').then((response) => {
        commit('SET_TASKS', response.data);
      });
    },
  },
  mutations: {
    SET_TASKS(state, tasks) {
      state.tasks = tasks;
    },
  },
  state: {
    tasks: [],
  },
};

In this example, we define An operation fetchTasks, which sends a GET request to the /api/tasks interface through the Axios library and stores the response data in the tasks state of the Vuex Store. This operation calls a mutation named SET_TASKS through the commit method.

To summarize, we can see that in Vue, we can place interface requests in components or Vuex Store. Depending on the size and complexity of your application, it's important to choose an appropriate way to organize your code. Typically, if you need to share data or perform some global operations, it will be more beneficial for you to use the Vuex Store. If your application is really simple, writing interface requests in components might be a better option.

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