File upload failing in golang
<p>In my use case I am trying to upload a file to server in golang. I have the following html code,</p>

<pre><code>&lt;div class="form-input upload-file" enctype="multipart/form-data" &gt;
    &lt;input type="file"name="file" id="file" /&gt;
    &lt;input type="hidden"name="token" value="{{.}}" /&gt;
    &lt;a href="/uploadfile/" data-toggle="tooltip" title="upload"&gt;
        &lt;input type="button upload-video" class="btn btn-primary btn-filled btn-xs" value="upload" /&gt;
    &lt;/a&gt;
&lt;/div&gt;
</code></pre>

<p>And the server side,</p>

<pre><code>func uploadHandler(w http.ResponseWriter, r *http.Request) {
    // the FormFile function takes in the POST input id file
    file, header, err := r.FormFile("file")
    if err != nil {
        fmt.Fprintln(w, err)
        return
    }
    defer file.Close()

    out, err := os.Create("/tmp/uploadedfile")
    if err != nil {
        fmt.Fprintf(w, "Unable to create the file for writing. Check your write access privilege")
        return
    }
    defer out.Close()

    // write the content from POST to the file
    _, err = io.Copy(out, file)
    if err != nil {
        fmt.Fprintln(w, err)
    }

    fmt.Fprintf(w, "File uploaded successfully : ")
    fmt.Fprintf(w, header.Filename)
}
</code></pre>

<p>When I try to upload the file, I am getting <code>request Content-Type isn't multipart/form-data</code> error in server side.</p>

<p>Could anyone help me on this?</p>