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// Copyright 2020 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"bytes"
"io"
"mime/multipart"
"net/http"
)
// PostFile upload file
func PostFile(reader io.Reader, url, fieldname, filename string) (*http.Response, error) {
bodyBuf := &bytes.Buffer{}
bodyWriter := multipart.NewWriter(bodyBuf)
// this step is very important
fileWriter, err := bodyWriter.CreateFormFile(fieldname, filename)
if err != nil {
return nil, err
}
_, err = io.Copy(fileWriter, reader)
if err != nil {
return nil, err
}
contentType := bodyWriter.FormDataContentType()
bodyWriter.Close()
resp, err := http.Post(url, contentType, bodyBuf)
if err != nil {
return nil, err
}
return resp, nil
}
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