2015-10-02 03:24:38 +02:00
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---
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title: Streaming File Upload
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menu:
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main:
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parent: recipes
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---
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2015-06-30 21:10:35 +02:00
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- Streaming multipart/form-data file upload
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- Multiple form fields and files
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2015-07-03 08:21:21 +02:00
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## Server
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2015-06-30 21:10:35 +02:00
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`server.go`
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```go
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package main
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import (
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"io/ioutil"
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"github.com/labstack/echo"
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2015-07-02 20:14:09 +02:00
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mw "github.com/labstack/echo/middleware"
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2015-06-30 21:10:35 +02:00
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"io"
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"net/http"
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2015-07-02 20:14:09 +02:00
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"os"
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2015-06-30 21:10:35 +02:00
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)
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func upload(c *echo.Context) error {
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mr, err := c.Request().MultipartReader()
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if err != nil {
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return err
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}
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// Read form field `name`
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part, err := mr.NextPart()
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if err != nil {
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return err
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}
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defer part.Close()
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b, err := ioutil.ReadAll(part)
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if err != nil {
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return err
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}
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name := string(b)
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// Read form field `email`
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part, err = mr.NextPart()
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if err != nil {
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return err
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}
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defer part.Close()
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b, err = ioutil.ReadAll(part)
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if err != nil {
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return err
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}
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email := string(b)
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// Read files
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i := 0
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for {
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part, err := mr.NextPart()
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if err != nil {
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if err == io.EOF {
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break
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}
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return err
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}
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defer part.Close()
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file, err := os.Create(part.FileName())
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if err != nil {
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return err
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}
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defer file.Close()
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if _, err := io.Copy(file, part); err != nil {
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return err
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}
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i++
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}
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return c.String(http.StatusOK, "Thank You! %s <%s>, %d files uploaded successfully.",
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name, email, i)
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}
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func main() {
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e := echo.New()
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2015-07-02 20:14:09 +02:00
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e.Use(mw.Logger())
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e.Use(mw.Recover())
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e.Static("/", "public")
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2015-06-30 21:10:35 +02:00
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e.Post("/upload", upload)
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2015-07-02 20:14:09 +02:00
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2015-06-30 21:10:35 +02:00
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e.Run(":1323")
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}
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```
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2015-07-03 08:21:21 +02:00
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## Client
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2015-06-30 21:10:35 +02:00
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`index.html`
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```html
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>File Upload</title>
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</head>
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<body>
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<h1>Upload Files</h1>
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<form action="/upload" method="post" enctype="multipart/form-data">
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Name: <input type="text" name="name"><br>
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Email: <input type="email" name="email"><br>
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Files: <input type="file" name="files" multiple><br><br>
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<input type="submit" value="Submit">
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</form>
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</body>
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</html>
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```
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## [Source Code](https://github.com/labstack/echo/blob/master/recipes/streaming-file-upload)
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