How to implement file upload progress bar using Golang?

Implementing the file upload progress bar in Golang requires the following steps: Download the github.com/gin-gonic/gin and github.com/go-bindata/go-bindata packages; import these packages and define a function to handle upload requests; Create a form in an HTML page for dragging and dropping files; use the FormData object and the XMLHttpRequest object in JavaScript to send files and monitor progress.

Use Golang to implement the file upload progress bar

The file upload progress bar allows users to track the file upload progress, which is the case for many Web A convenient feature in the app. Implementing this functionality in Golang is relatively simple.

Download library

First, you need to download the github.com/gin-gonic/gin package, which is a Web for Golang framework, and the github.com/go-bindata/go-bindata package, which is used to process files.

Code implementation

import (
    "fmt"
    "io"
    "net/http"
    "os"

    "github.com/gin-gonic/gin"
    "github.com/go-bindata/go-bindata"
)

func indexHandler(c *gin.Context) {
    c.HTML(http.StatusOK, "index.html", gin.H{

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