Tips for verifying the rendered view post data retrieval from an API in Vue JS

Question

Tips for verifying the rendered view post data retrieval from an API in Vue JS

Having trouble retrieving data from the API using Vue JS and printing the page? After fetching the data, some elements may not render completely when trying to print, resulting in blank data being displayed. While using a setTimeout function may work for some clients, it is not a perfect solution as it may require setting a longer waiting timeout to ensure all clients can print successfully. This workaround is not ideal.

methods: {
            getData() {
                axios.get('/api/sale/receipt/' + this.$route.params.uuid).then((res) => {
                    this.sale = res.data
                    if(this.sale.customer == null) {
                        this.sale.customer = {}
                    }
                    
                    $('.main-loader').hide();
                    // setTimeout(function() {
                        window.print();
                        window.close();
                    // }, 2000);
                }).catch((res) => {

                });
            }
        },

After the elements have rendered, the print option will pop up. Thank you!

javascript vue.js printing reactive-programming

Answer 1

Answer №1

Below is an illustration of how to utilize $nextTick() within Vue.

If you make use of window.print() directly, minus employing $nextTick(), then your printout won't include the list of posts since it requires time to update the DOM.

const { createApp, ref } = Vue 

const App = {
  data() {
    return { 
      posts: [] 
    }
  },
  created() {
    this.getData();
  },
  methods: {
    getData() {
          fetch('https://jsonplaceholder.typicode.com/posts')
              .then((response) => response.json())
              .then((data) => 
              {
                this.posts = data;
                this.$nextTick(() => {
                  window.print();
                });
              });
      }   
  }  
}

const app = createApp(App)
app.mount('#app')

#app { line-height: 1.75; }
[v-cloak] { display: none; }

<div id="app" v-cloak>
<div v-for="post in posts" :key="post.id">
  <label>Id:</label>{{post.id}}<br/>
  <label>Title:</label>{{post.title}}<br/>
  <label>Body:</label>{{post.body}}<br/>
  <hr/>
</div>
</div>
<script src="https://unpkg.com/vue@3/dist/vue.global.prod.js"></script>

Answer 2

Below is an illustration of how to utilize $nextTick() within Vue.

If you make use of window.print() directly, minus employing $nextTick(), then your printout won't include the list of posts since it requires time to update the DOM.

const { createApp, ref } = Vue 

const App = {
  data() {
    return { 
      posts: [] 
    }
  },
  created() {
    this.getData();
  },
  methods: {
    getData() {
          fetch('https://jsonplaceholder.typicode.com/posts')
              .then((response) => response.json())
              .then((data) => 
              {
                this.posts = data;
                this.$nextTick(() => {
                  window.print();
                });
              });
      }   
  }  
}

const app = createApp(App)
app.mount('#app')

#app { line-height: 1.75; }
[v-cloak] { display: none; }

<div id="app" v-cloak>
<div v-for="post in posts" :key="post.id">
  <label>Id:</label>{{post.id}}<br/>
  <label>Title:</label>{{post.title}}<br/>
  <label>Body:</label>{{post.body}}<br/>
  <hr/>
</div>
</div>
<script src="https://unpkg.com/vue@3/dist/vue.global.prod.js"></script>

Answer 3

Answer №2

I have finally found the solution to my question.

methods: {
            async getData() {
                await axios.get('/api/sale/receipt/' + this.$route.params.uuid).then((res) => {
                    this.sale = res.data
                    if(this.sale.customer == null) {
                        this.sale.customer = {}
                    }
                    $('.main-loader').hide();
                    // setTimeout(function() {
                        // window.print();
                        // window.close();
                    // }, 2000);
                }).catch((res) => {

                });
                
                window.print();
                window.close();
            }
        },

By adding async getData() to my function and using await with axios, I was able to move the window.print() outside of the axios and now everything is working perfectly.

Answer 4

I have finally found the solution to my question.

methods: {
            async getData() {
                await axios.get('/api/sale/receipt/' + this.$route.params.uuid).then((res) => {
                    this.sale = res.data
                    if(this.sale.customer == null) {
                        this.sale.customer = {}
                    }
                    $('.main-loader').hide();
                    // setTimeout(function() {
                        // window.print();
                        // window.close();
                    // }, 2000);
                }).catch((res) => {

                });
                
                window.print();
                window.close();
            }
        },

By adding async getData() to my function and using await with axios, I was able to move the window.print() outside of the axios and now everything is working perfectly.

Tips for verifying the rendered view post data retrieval from an API in Vue JS

Answer №1

Answer №2

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