echo/website/content/recipes/file-upload.md

title	menu
File Upload	side parent weight recipes 7

• Multipart/form-data file upload
• Multiple form fields and files

Use req.ParseMultipartForm(16 << 20) for manually parsing multipart form. It gives us an option to specify the maximum memory used while parsing the request body.

If you just want to upload a single file:

file, fh, err := req.FormFile("file")
if err != nil {
    return err
}
defer file.Close()

// Destination
dst, err := os.Create(fh.Filename)
if err != nil {
    return err
}
defer dst.Close()

// Copy
if _, err = io.Copy(dst, file); err != nil {
    return err
}

Server

server.go

{{< embed "file-upload/server.go" >}}

Client

index.html

{{< embed "file-upload/public/index.html" >}}

Maintainers

• vishr

Source Code