How to use Vue to implement APP recording function and upload function

In recent years, with the popularity of mobile applications, the demand for voice recording and uploading has been increasing day by day. In the Vue framework, combined with the new features of HTML5, we can easily implement the APP recording function and upload it. This article will share how to use Vue to implement the APP recording function and upload it, so that you can easily implement the voice recording and uploading function.

1. Preconditions

First of all, we need to make it clear that the recording function needs to use the new features of HTML5, so before implementing the recording function, we need to check the browser compatibility sex.

In 2019, most mobile browsers already support new HTML5 features, but there are still a few browsers that are incompatible. In practical applications, we can use the Modernizr library to check whether the browser supports new HTML5 features.

2. Implementation steps

1. Configuration environment

Before installing Vue, we need to install Node.js and NPM. After the installation is complete, open the command line tool and execute the following command to install Vue-cli:

npm install -g vue-cli

After the installation is complete, we can use the following command to create a new Vue project:

vue init webpack my-project

where , "my-project" is the project name, which can be defined by the user. Next, just follow the steps prompted by the command line to configure it.

2. Installing dependencies

After creating the Vue project, we need to install some necessary dependencies, includingvue-audio-recorderandaxios. First, we need to installvue-audio-recorderusing the following command:

npm install vue-audio-recorder --save

Then, use the following command to installaxios:

npm install axios --save

The above two This dependency is a must to implement the recording and uploading functions.

3. Writing code

After completing the environment configuration and dependency installation, we need to write code to implement the recording function. First, import the following code in the Vue component:

import AudioRecorder from 'vue-audio-recorder' import axios from 'axios'

Then, define the following state in the Vue component:

data() { return { audioSrc: '', audioName: '' }; }

Among them,audioSrcrepresents the link address of the recording,audioNameis the name of the recording file.

Next, write the following code in the Vue component to implement recording:

mounted() { this.audioRecorder = new AudioRecorder({ onComplete: (blob)=>{ // 上传录音文件 this.uploadAudio(blob); }, }); }, methods: { startRecord() { this.audioRecorder.start(); }, stopRecord() { return this.audioRecorder.stop() .then((blob) => { // 保存录音blob对象到变量中 this.audioBlob = blob; // 设置录音链接地址 this.audioSrc = URL.createObjectURL(blob) }) .catch(() => { console.log('Media recording failed'); }); }, uploadAudio(audioFile) { var formData = new FormData(); formData.append("audio", audioFile, this.audioName); axios.post('/api/upload', formData, { headers: { 'Content-Type': 'multipart/form-data' } }).then(response => { console.log(response.data); if (response.status == 200) { console.log("上传成功"); } else { console.log("上传失败"); } }).catch(() => { console.log("网络异常"); }) } }

Among them,audioRecorderis the recording object, andonCompleteindicates that after the recording is completed The callback function,startRecordis the start recording function,stopRecordis the stop recording function, and theuploadAudiofunction is used to upload the recording file.

So far, we have completed the implementation of the recording function. Users can add a recording button in the Vue template, and call thestartRecordfunction in the button's@clickevent to start recording, and call thestopRecordfunction when the recording ends. to end the recording and upload it.

3. Summary

Through the above steps, we can easily implement Vue’s APP recording function and upload it. By using the new features of HTML5 and the Vue framework, we can easily accomplish this task. The key to implementation is to use thevue-audio-recorderlibrary andaxiosdependencies to make the whole process simple and enjoyable.

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